Frymaster Cooktop 17EC User Manual

Frymaster, a member of the Commercial Food Equipment Service Association, recommends

using CFESA Certified Technicians.

MAY 2003

24-Hour Service Hotline 1-800-551-8633

* 8 1 9 5 6 8 0 *

Online manual updated

06/07/04

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

TABLE OF CONTENTS

CHAPTER 1: General Information

1.1

1.2

1.3

1.4

1.5

1.6

Parts Ordering and Service Information

Safety Information

Equipment Description

Installation, Operating, and Service Personnel

Definitions

Shipping Damage Claim Procedure

1-1

1-2

1-3

1-4

CHAPTER 2: Installation Instructions

2.1

2.2

2.3

2.4

General Installation Requirements

Caster/Leg Installation

Pre-Connection Preparations

2-1

2-2

2-3

Connection to the Electrical Power Supply

CHAPTER 3: Operating Instructions

3.1

3.2

3.3

3.4

Spaghetti Magic II Controller (As Used on 17EC and 17ECS Units)

3-1

3-3

3-8

3-9

Computer Magic III Controller (As Used on EWBS Units)

Thermostat Control and Switch Panel (As Used on ESW and EWBS Units)

Boiling Out the Cookpot

CHAPTER 4: Preventive Maintenance

Daily Preventive Maintenance

4-1

CHAPTER 5: Operator Troubleshooting

5.1

5.2

5.3

5.4

Introduction

Operator Troubleshooting Guide

Replacing the Controller (17EC/17ECS and EWBS with CM III Computer)

Replacing Fuses in 17EC and 17ECS Models

5-1

5-2

5-3

5-4

CHAPTER 6: 17EC/17ECS Service Procedures & Parts

6.1

6.2

6.3

Functional Description ................................................................................................... 6-1

Accessing Equipment for Servicing............................................................................... 6-2

Replacing Equipment Components................................................................................ 6-2

6.3.1 Replacing the Computer................................................................................................. 6-2

6.3.2 Replacing Electronic Components Other than the Computer ........................................ 6-2

6.3.3 Replacing a Heating Element......................................................................................... 6-3

6.3.4 Replacing the High-Limit Thermostat ........................................................................... 6-5

6.3.5 Replacing a Water-Level Sensor.................................................................................... 6-6

6.3.6 Replacing the Temperature Probe .................................................................................. 6-6

6.3.7 Replacing the Pressure Regulator or Solenoid Valve .................................................... 6-7

6.3.8 Replacing the Water Faucet ........................................................................................... 6-7

6.3.9 Replacing a Basket Lift Motor or Microswitch.............................................................. 6-8

6.3.10 Replacing the Cookpot or Rinse Tank ........................................................................... 6-9

6.4

Technician Troubleshooting......................................................................................... 6-11

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6.4.1 How the Power Supply System Works ........................................................................ 6-11

6.4.2 How the Computer Works............................................................................................ 6-11

6.4.3 How the Autofill/Autoskim System Works ................................................................. 6-12

6.4.4 How the Water Heating System Works ....................................................................... 6-12

6.4.5 How the Basket Lift System Works............................................................................. 6-13

6.4.6 Technician Troubleshooting Guides ............................................................................ 6-14

Troubleshooting the 24VAC Power Supply System.................................................... 6-14

Troubleshooting the 24VAC Power to Computer........................................................ 6-15

Troubleshooting the Autofill System ........................................................................... 6-16

Troubleshooting the Water Heating System ................................................................ 6-17

Troubleshooting the Basket Lift System...................................................................... 6-18

6.5

Parts List....................................................................................................................... 6-19

Accessories................................................................................................................... 6-19

Basket Lift Components............................................................................................... 6-20

Cabinetry ...................................................................................................................... 6-22

Cookpot, Rinse Tank, and Drain Components............................................................. 6-24

Electronics.................................................................................................................... 6-26

Water Supply System Components.............................................................................. 6-28

Wiring Diagram............................................................................................................ 6-29

6.6

CHAPTER 7: ESW/EWBS Service Procedures & Parts

7.1

7.2

7.3

Functional Description ................................................................................................... 7-1

Accessing Equipment for Servicing............................................................................... 7-3

Replacing Equipment Components................................................................................ 7-3

7.3.1 Replacing the Computer................................................................................................. 7-3

7.3.2 Replacing Electronic Components Other than the Computer ........................................ 7-3

7.3.3 Replacing a Heating Element......................................................................................... 7-4

7.3.4 Replacing the High-Limit Thermostat ........................................................................... 7-5

7.3.5 Replacing a Water-Level Sensor.................................................................................... 7-6

7.3.6 Replacing the Temperature Probe .................................................................................. 7-6

7.3.7 Replacing the Pressure Regulator or Solenoid Valve .................................................... 7-8

7.3.8 Replacing the Water Faucet ........................................................................................... 7-8

7.3.9 Replacing a Basket Lift Motor or Microswitch.............................................................. 7-9

7.3.10 Replacing the Cookpot ................................................................................................. 7-10

7.4

Technician Troubleshooting......................................................................................... 7-12

7.4.1 How the Power Supply System Works ........................................................................ 7-12

7.4.2 How the Computer Works............................................................................................ 7-12

7.4.3 How the Autofill and Skim Systems Work.................................................................. 7-13

7.4.4 How the Water Heating System Works ....................................................................... 7-13

7.4.5 How the Basket Lift System Works............................................................................. 7-14

7.4.6 Technician Troubleshooting Guides ............................................................................ 7-15

Troubleshooting the 24VAC Power Supply System.................................................... 7-15

Troubleshooting the Autofill System ........................................................................... 7-16

Troubleshooting the Water Heating System ................................................................ 7-17

Troubleshooting the Basket Lift System...................................................................... 7-18

7.5

Parts List....................................................................................................................... 7-19

Accessories................................................................................................................... 7-19

Basket Lift Components............................................................................................... 7-20

Cabinetry ...................................................................................................................... 7-22

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Control Components..................................................................................................... 7-24

Cookpot and Drain Components .................................................................................. 7-25

Electronics.................................................................................................................... 7-26

Water Supply System Components.............................................................................. 7-28

Wiring Diagrams .......................................................................................................... 7-30

7.6

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 1: GENERAL INFORMATION

1.1

Parts Ordering and Service Information

In order to assist you as quickly as possible, the Frymaster Factory Authorized Service Center

(FASC) or Service Department representative requires certain information about your equipment.

Most of this information is printed on a data plate affixed to the inside of the door.

Parts orders may be placed directly with your local FASC or distributor. Included with cookers

when shipped from the factory is a list of FASCs. If you do not have access to this list, contact the

Frymaster Technical Service Department at 1-800-551-8633 or 1-318-865-1711.

When ordering parts, the following information is required:

Model Number:

Serial Number:

Voltage:

Item Part Number:

Quantity Needed:

Service information may be obtained by contacting your local FASC/Distributor. Information may

also be obtained by calling the Frymaster Technical Service Department at 1-800-551-8633 or

1-318-865-1711. When requesting service, please have the following information ready:

Model Number:

Serial Number:

Voltage:

In addition to the model number, serial number, and voltage, please be prepared to describe the

nature of the problem and have ready any other information that you think may be helpful in

solving your problem.

RETAIN AND STORE THIS MANUAL IN A SAFE PLACE FOR FUTURE USE.

1.2

Safety Information

Before attempting to operate your unit, read the instructions in this manual thoroughly.

Throughout this manual, you will find safety notations enclosed in boxes similar to the ones

illustrated below and on the following page.

CAUTION

CAUTION boxes contain information about actions or conditions that may cause or result

in malfunction of your equipment.

WARNING

1-1

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WARNING boxes contain information about actions or conditions that may cause or

result in damage to your equipment, and which may cause your equipment to

malfunction.

DANGER

DANGER boxes contain information about actions or conditions that may cause or result

in injury to personnel, and which may cause damage or malfunctioning of your

equipment

1.3

Equipment Description

The automatic, high-volume Electric Cooker models ESW and EWBS are specifically designed for

rethermalizing pre-cooked packaged foods, boiling seafood, or cooking fresh foods and pasta. All

models are capable of delivering up to 50 pounds (26 kg) of product per hour.

Model Comparison:

17EC/17ECS: The 17EC and 17ECS series feature two 8.5-kilowatt heating elements in a

16.5 gallon (62.5 liter) stainless steel cookpot. A specially modified SMS II computer

controls the cooking process and the automatic filling (Autofill) and automatic skimming

(Autoskim) features. The Autoskim feature sprays water onto the surface of the water,

forcing starch across to the overflow drain. This eliminates loss of cooking time associated

with removing excess starch buildup. It also keeps the cooking water at the optimum level

by replacing water evaporated during the cooking process. These models are also equipped

with automatic basket lifts. The cookpot is safeguarded against over filling and boilover by

a large overflow drain and a starch diverter. “SD” following the model designation

indicates a stainless steel cookpot and door, and an enameled cabinet. “SC” following the

model designation indicates all stainless steel components. The 17ECS model consists of a

cooker and rinse tank combined in a single cabinet. The 17EC model has no rinse tank.

Both models have a manually operated faucet equipped with a flexible hose.

ESW: The ESW series features a 13-kilowatt cookpot holding 16.5 gallons (62.5 liters) of

water. A rocker-type ON/OFF switch controls electrical power to the unit. A manually

adjusted thermostat regulates water temperature, and a 3-position rocker switch (BOIL-

IDLE-SIMMER) controls power to the heating element. The unit also has two rocker

switches for adding water to the unit. The FAUCET switch opens a normally closed

solenoid valve to add water through a swing-away faucet. The SKIM switch opens a

normally closed solenoid valve to add water through a spray nozzle mounted on the front of

the cookpot. The skim feature sprays water onto the surface of the water, forcing starch to

the overflow drain. This eliminates loss of cooking time associated with removing excess

starch buildup. The cookpot is safeguarded against over filling and boilover by a large

overflow drain. “SD” following the model designation indicates a stainless steel cookpot

and door, and an enameled cabinet. “SC” following the model designation indicates all

stainless steel components.

EWBS: The EWBS series replaced the ESW series. Models feature a 13-kilowatt heating

element in a 16.5-gallon (62.5-liter) cookpot. The control options available include an

operating thermostat and switch panel (identical to that on the ESW, described on the

1-2

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previous page) or a specially modified CM III computer. The equipment may be configured

as single cooker (E1WBS) or as a battery of two cookers (E2WBS). “SD” following the

model designation indicates a stainless steel cookpot and door, and an enameled cabinet.

“SC” following the model designation indicates all stainless steel components. Optional

features include automatic water filling and a manual skim feature. Standard safety features

on both models include a low-water safety shutoff and a water pressure regulator. All units

may be configured with either a “Sauce Package” consisting of a saucepan insert rack, a

sauce bag rack, and a rack cover, or with a “Pasta Package” consisting of a bulk basket,

portion cups and cup rack, and a strainer board. Both models may be equipped with an

optional swing-away faucet. The cookpot on both models is safeguarded against over filling

and boilover by a large overflow drain and a starch diverter.

1.4

Installation, Operating, and Service Personnel

Operating information for Frymaster equipment is intended for use by qualified and/or authorized

personnel only, as defined in Section 1.5.

All installation and service on Frymaster equipment must be performed by qualified, certi-

fied, licensed, and or/authorized installation or service personnel, as defined in Section 1.5.

1.5

Definitions

QUALIFIED AND/OR AUTHORIZED OPERATING PERSONNEL

Qualified/authorized operating personnel are those who have carefully read the information in this

manual and have familiarized themselves with the equipment functions, or who have had previous

experience with the operation of the equipment covered in this manual.

QUALIFIED INSTALLATION PERSONNEL

Qualified installation personnel are individuals, or firms, corporations, or companies that, either in

person or through a representative, are engaged in and are responsible for the installation of

electrical appliances. Qualified personnel must be experienced in such work, be familiar with all

electrical precautions involved, and have complied with all requirements of applicable national and

local codes.

QUALIFIED SERVICE PERSONNEL

Qualified service personnel are those who are familiar with Frymaster equipment and who are

authorized by Frymaster to perform service on Frymaster equipment. All authorized service

personnel are required to maintain a complete set of service and parts manuals and to stock a

prescribed minimum amount of Frymaster parts. Failure to use qualified service personnel will

void the Frymaster Warranty on your equipment. A list of Frymaster Factory Authorized Service

Centers (FASCs) was included with the equipment when it was shipped from the factory.

1.6

Shipping Damage Claim Procedure

Your Frymaster equipment was carefully inspected and packed before leaving the factory. The

transportation company assumes full responsibility for safe delivery upon acceptance of the equip-

ment for transport.

1-3

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What to do if your equipment arrives damaged:

1. File a claim for damages immediately, regardless of the extent of damages.

2. Inspect for and record all visible loss or damage and ensure that this information is noted on

the freight bill or express receipt and is signed by the person making the delivery.

3. Concealed loss or damage that was unnoticed until the equipment was unpacked should be

recorded and reported to the freight company or carrier immediately upon discovery. A

concealed damage claim must be submitted within 15 days of the date of delivery. Ensure that

the shipping container is retained for inspection.

FRYMASTER DOES NOT ASSUME RESPONSIBILITY

FOR DAMAGE OR LOSS INCURRED IN TRANSIT.

1-4

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 2: INSTALLATION INSTRUCTIONS

2.1

General Installation Requirements

PROPER INSTALLATION IS ESSENTIAL FOR EFFICIENT, TROUBLE-FREE

OPERATION OF YOUR COOKER. ANY UNAUTHORIZED ALTERATIONS MADE TO

THIS EQUIPMENT WILL VOID THE FRYMASTER WARRANTY.

Upon arrival, inspect the cooker carefully for visible or concealed damage. (See Shipping Damage

Claim Procedure in Chapter 1.)

NATIONAL CODE REQUIREMENTS

This equipment is to be installed in compliance with the Basic Plumbing Code of the Building Offi-

cials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual

of the U.S. Food and Drug Administration.

ELECTRICAL GROUNDING REQUIREMENTS

All electrically operated appliances must be grounded in accordance with all applicable national and

local codes. A wiring diagram is located on the inside of the equipment door. Refer to the rating

plate on the inside of the door for proper voltages.

FCC COMPLIANCE

The user is cautioned that any changes or modifications to Frymaster computers not expressly ap-

proved by the party responsible for compliance could void the user’s authority to operate the equip-

ment. Frymaster computers have been tested and found to comply with the limits for a Class A

digital device, pursuant to Part 15 of the FCC rules. While these devices are verified as Class A de-

vices, they have been shown to meet the Class B limits. These limits are designed to provide rea-

sonable protection against harmful interference when the equipment is operated in a commercial en-

vironment. This equipment generates, uses, and can radiate radio frequency energy and, if not in-

stalled and used in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of the equipment in a residential area is likely to cause harmful interfer-

ence in which case the user will be required to correct the interference at his own expense.

If necessary, the user should consult the dealer or an experienced radio and television technician for

additional suggestions.

The user may find the booklet “How to Identify and Resolve Radio-TV Interference Problems”

helpful. It is prepared by the Federal Communications Commission and is available from the U.S.

Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4.

2-1

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2.2

Caster/Leg Installation

Depending upon the specific configuration ordered, your unit might have been shipped without in-

stalled casters or legs. If casters or legs are installed, you may skip this section and proceed to Sec-

tion 2.3, Pre-Connection Preparations.

If your unit requires the installation of casters/legs, install them in accordance with the in-

structions included in your accessory package.

2.3

Pre-Connection Preparations

After the unit has been positioned in the area where it will be used, ensure the following have been

accomplished before connecting the unit to the electrical power source:

1. This equipment must be stabilized by installing restraining chains on units equipped with

casters or anchor straps on units equipped with legs. Follow the instructions shipped with

the casters/legs to properly install the chains or straps.

2. Level units equipped with legs by screwing the legs out approximately 1 inch, then adjusting

them so that the unit is level.

For units equipped with casters, there are no built-in leveling devices. The floor where the

unit is to be installed must be level.

3. Install the basket lift arms (on units so equipped) on the lift rods (located at the top rear of

the cabinet) so that the basket lift rollers guides the lift arms.

NOTE: Some adjustment of the rollers may be necessary for free movement of the basket lift

arms.

4. If so equipped, connect the water hose(s) to the fitting(s) at the rear of the unit and connect

the unit to the water supply.

CAUTION

Incoming water pressure for all units should be approximately 40 PSI (28.15 kg/cm²).

DANGER

The maximum allowable incoming water pressure for all units is 80 PSI (56.3 kg/cm²).

The maximum allowable incoming water temperature for all units is 180ºF (82ºC).

WARNING

To prevent back flushing, the connection piping should be installed with a vacuum breaker

or means of providing an air gap 1” (2.54 cm) above the cookpot rim.

NOTE: On units equipped with water hoses, the hoses come with a quick-disconnect cou-

pling. The quick disconnect may be attached to the unit or to the water supply line, or it may

be left off entirely, whichever you prefer. If the unit is to be moved frequently (for cleaning

or preventive maintenance), Frymaster recommends installing flexible water lines. If the

cooker is hard-plumbed then moved, the connections may loosen and eventually cause leaks.

2-2

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Whichever option is chosen, Teflon thread-seal tape, Loctite™ PST56765 or equivalent

thread sealer must be used when installing the fittings.

NOTE: Depending on specific model ordered, either hot or cold water, or both, may be

connected to the unit. If available, connecting hot water will minimize the time required to

bring the unit to a boil when filling with fresh water.

NOTE: In order for the water level sensors to work properly, a certain amount of mineral

content in necessary in the water. For that reason, purified, deionized, or highly filtered

water should not be used.

5. Connect the desired drain plumbing to the drain valve.

2.4

Connecting to the Electrical Supply

DANGER

This unit must be connected to the voltage and phase specified on the rating and serial

number plate located on the inside of the equipment door. To determine the appropriate

wire size, refer to the POWER REQUIREMENTS chart at the bottom of this page.

1. If the unit is not equipped with an installed power cord, open the door and remove the contactor

box cover. Position the unit to gain access to the rear and remove the lower back panel.

2. Insert an appropriately rated power cord into the rear of the contactor box and make connections

in accordance with the applicable wiring diagram on the following page. Install a strain relief on

the power cord and replace the lower back panel and contactor box cover.

3. Attach a plug that complies with national and/or applicable local codes to the free end of the

electrical power cord and plug the unit into an appropriate outlet.

POWER REQUIREMENTS

Use copper wire ONLY, suitable for at least 170ºF (75ºC)

ELECTRIC COOKER MODELS 17EC, 17ECS, ESW, & EWBS

Amps

Minimum

Volts

200

208

200

208

230

200

230

Phase

Single

3P – Delta

3P – Wye

Watts

7860

12000

8500

13000

8500

12000

13000

12000

13000

(per leg)

Wire Size

AWG 6 (4.1 mm)

AWG 4 (5.2 mm)

AWG 6 (4.1 mm)

AWG 4 (5.2 mm)

AWG 8 (3.3 mm)

AWG 6 (4.1 mm)

AWG 8 (3.3 mm)

2-3

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FIELD CONNECTION WIRING DIAGRAMS

SINGLE PHASE

FIELD CONNECTION

SINGLE PHASE (NO NEUTRAL)

FIELD CONNECTION

NEUTRAL TO L3

1HV

1C1

1HV

1C1

FROM

TRANSFORMER

FROM TRANSFORMER

2HV

1C2

2HV

1C2

3HV

1C3

3HV

1C3

FROM TRANSFORMER

3 PHASE 3 WIRE (DELTA)

FIELD CONNECTION

3 PHASE 4 WIRE (WYE)

FIELD CONNECTION

FROM TRANSFORMER

3HV

1HV

1C1

1C3

1HV

1C1

2HV

1C2

2HV

3HV

1C3

1C2

FROM TRANSFORMER

2-4

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 3: OPERATING INSTRUCTIONS

3.1

Spaghetti Magic III Controller (As Used on 17EC and 17ECS Units)

Numeric Keypad

Skim Switch (w/Autoskim only)

Timer Start Switch

Simmer Mode Switch

Boil Mode Indicator

Boil Mode Switch

Power Switch

Simmer Mode Indicator

LED Display

3.1.1

Introduction

CAUTION

The Spaghetti Magic III (SMS III) computer used in 17EC/17ECS units is specially

configured for them. The programming and operation of the 17EC/17ECS SMS III

computer are different than those of the SMS III computers used in other products.

The computers are not interchangeable.

The Spaghetti Magic III computer allows the operator to specify a specific cook time in minutes and

seconds, then initiate a cooking cycle. The computer is configured for both automatic filling

(AutoFill) and automatic skimming (Autoskim) features.

The BOIL mode is used when actually cooking pasta.

The SIMMER mode feature maintains the water temperature just below boiling (approximately

195ºF/90.6ºC), which conserves energy and water. This feature is designed for rethermalizing

previously cooked packaged products, and for keeping the cooker in standby.

The SKIM feature, when selected, adds water for approximately 3 seconds once a minute. It causes

the water to overflow into the drain, carrying floating starch with it. (A buildup of starch reduces the

efficiency of the cooker and can cause erroneous temperature and water level sensing.)

3-1

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LOW WATER SENSING automatically de-energizes the heating element if the water in the

cookpot drops too low. When the water level in the cookpot is below the sensor probes, such as

when draining and cleaning the cookpot, the controller display will read LO.

NORMAL WATER LEVEL SENSING, on units configured with the AutoFill feature,

automatically adds water during or after a cooking cycle if the water level is low. With this

automatic filling feature, the water level does not have to be continuously monitored. The cookpot

always has the correct amount of water.

3.1.2

Operating Instructions

CAUTION

If this is the first time the unit is being used after installation, refer to Section 3.4, Boil Out

Procedure.

Before turning the cooker on, ensure that:

• the unit is connected to the water supply.

• the water supply is turned on.

• the unit is plugged into an appropriate outlet.

• the electrical power supply is turned on.

1. Turn the controller on by pressing the Power

switch.

2. The unit will automatically enter the simmer mode and the simmer mode indicator will

illuminate. This will bring the cooker to “stand-by” temperature. To enter the boil mode, press

the Boil Mode

switch.

3. Enter the desired cooking time using the numeric keypad. The time entered appears in the LED

display.

4. When ready to initiate a cooking cycle, press the Start Timer

switch then press the Boil Mode

switch. The basket lift will automatically lower the basket or portion cups into the cookpot

and the LED display will begin to count down. Simultaneously, the water will be raised to the

boiling point. At the end of the cooking cycle, an alarm will sound briefly to alert you and the

basket lift will automatically raise the basket or portion cups out of the water.

5. The display will automatically return to the previously set cooking time and the unit will return

to the simmer mode. If the same time is desired for the next batch, simply repeat Step 4. If a

different cooking time is desired, follow Steps 3 and 4.

6. To initiate the automatic skimming (Autoskim) feature, press the Skim

switch.

3.1.3 Setting the Controller Transition Temperature/Boil Intensity

You may adjust the cooker’s Transition Temperature/Boil Intensity to prevent boilover on

controllers configured with this feature.

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When the water is at or above the minimum temperature for boiling (transition temperature), the

controller pulses power to the elements at a programmable rate. The range can be set between 0 and

9. The default setting is 5. When the water temperature is below boiling point, the power

application is 100 percent.

To set the Transition Temperature/Boil Intensity:

1. Verify that the controller is OFF (the display is blank).

2. Press the Simmer (right thermometer icon) switch to enter the programming mode; CODE appears

in the display.

3. Enter code 1111 (press the 1 button four times). Transition Temperature appears in the display.

(NOTE: If transition temperature does not appear, your controller is not configured with this

feature. Press the Simmer switch to exit the programming mode. The display will go blank.)

4. Enter the minimum temperature for boiling with the keypad. This temperature will vary with

your altitude. As a guide, the table below provides boiling points for altitudes from sea level to

6000 feet (1830 meters).

Altitude

Boiling Point

Feet

Meters

305

610

915

1220

1525

1830

°F

°C

100

212

210

208

207

205

203

201

1000

2000

3000

4000

5000

6000

5. Press the simmer switch; 5BI (the default setting for boil intensity) appears.

6. Use the keypad to enter one of the settings from the table below.

Setting Power ON Power OFF

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

20%

30%

40%

50%

60%

70%

80%

90%

7. Press the simmer switch to lock in the new settings and exit the programming mode. The display

will go blank.

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3.1.4 Controller Simmer Mode Adjustment

NOTE: The SMS III Controller simmer temperature is adjustable from 185ºF to 215ºF (85° to

102°C). There are two versions of this controller; one is adjusted by programming, the other is

manually adjusted.

To determine which version of the controller you have, turn the controller off by pressing the

ON/OFF switch. The display will go blank. Press the Simmer (right thermometer icon) switch. If

Code appears in the display, the simmer mode setpoint is changed via programming; if not, skip to

Manual Adjustment below.

1. Press 1, 6, 5, 0 to enter the programming mode. The currently programmed simmer setpoint will

be displayed. If the setpoint is not correct, enter the desired setpoint (for example, press 2, 0, 0

to program the simmer setpoint to 200º.

2. Press the Simmer switch again to lock in the setpoint, then press the ON/OFF switch to turn the

controller on and return to the normal operating mode.

Manual Adjustment

1. With the unit in the simmer mode, place the tip of a good grade thermometer near the

temperature probe and determine the actual water temperature in degrees Fahrenheit. If the

temperature is within 5ºF (2°C) of the desired simmer temperature, nothing more needs to be

done. If it is not within 5ºF (2°C) of the desired temperature, perform Steps 2 through 5.

2. With the unit in the simmer mode, open the control panel by removing the screws in the upper

corners and tilting the panel out.

3. Remove the black rubber plug from the top of the controller housing.

4. Using a small, flat-tipped screwdriver, turn the adjusting screw to change the simmer setpoint.

¼ turn will change the setpoint about 10ºF (5°C). (You will have to experiment with the

direction of rotation to determine which way to turn to raise or lower the temperature.) Wait at

least 5 minutes, then recheck actual water temperature. Repeat this step until the water

temperature is within 5ºF (2°C) of desired temperature.

5. Replace the plug in the controller, close the control panel, and replace the screws removed in

Step 1.

3.1.5 Toggling Between Fahrenheit and Celsius Temperature Display

1. There are two versions of the SMS Controller: one that can be toggled between Fahrenheit and

Celsius temperature display and one that cannot. To determine which version you have, turn the

controller off by pressing the Power

switch. The display will go blank. Press the Simmer

switch. If Code appears in this display, the temperature display can be changed. If not, the

display cannot be changed.

2. If Code appears in the display, press 1, 6, 5, 8. The display will toggle from Fahrenheit to

Celsius, or from Celsius to Fahrenheit.

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Press the Boil Mode

switch to display the cookpot temperature. If an F follows the

temperature, the display is in Fahrenheit; if a C follows the temperature, the display is in Celsius.

3.1.6 Shutting the 17EC/17ECS Down

Turn the unit off by pressing the Power

switch. If shutting down at the end of the day, drain and

clean the cookpot, and put the cookpot cover in place.

3.2

Computer Magic III Controller (As Used on EWBS Units)

COMPUTER MAGIC

LED Displays

Power Switches

Temperature Check/Program Lock

Program Mode Switch

Boil Mode Switch

Product Buttons 1 through 5

Product Buttons 6 through 10

Simmer Mode Switch

CAUTION

The Computer Magic III (CM III) computer used in Electric Water Bath Systems is specially

configured for them. The programming and operation of the EWBS CM III are different

than those of the CM III computers used in electric fryers.

The two computers are not interchangeable.

3.2.1

Start-Up Procedure

CAUTION

If this is the first time the unit is being used after installation, refer to Section 3.4, Boil Out

Procedure.

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SETTING THE UNIT UP FOR FIRST-TIME OPERATION

Before turning the cooker on, ensure that:

• the unit is connected to the water supply.

• the water supply is turned on.

• the unit is plugged into an appropriate outlet.

• the electrical power supply is turned on.

CAUTION

It is recommended that the simmer setpoint and the cook/stir times for all 10 products be

programmed before the unit is first used in a cooking cycle.

When the unit is tested at the factory, the simmer setpoint and product cook times are programmed.

These test settings are not default settings. You must program the unit for your own particular

products. Program the setpoint and all 10 product cook/stir times as follows:

1. Turn the computer on by pressing the Power

Switch.

2. Enter the programming mode by pressing the Program Mode Switch . CodE appears in

the left display. If you enter the programming mode by mistake, press the switch again to

exit the programming mode.

NOTE: If you try to enter the programming mode while the computer is cooking, the display

will flash BUSY.

NOTE: The unit comes from the factory configured to display in degrees Fahrenheit. To

toggle back and forth between Fahrenheit and Celsius, press the Program Mode

then enter the code 1 6 5 8 by pressing the corresponding product buttons. Next, press

the Temperature Check/Program Lock switch to lock in the new display option.

switch,

3. Enter the number 1 6 5 0 by pressing the corresponding product buttons. Unless this

code is entered, programming will not be accepted. This is to prevent unauthorized changes

to your current instructions.

4. S P - r (Setpoint) will appear in the left LED display. Any previously programmed

temperature setpoint will appear in the right display. To change the setpoint, enter the

desired setpoint temperature using the corresponding product buttons. The setpoint can be

programmed for any value up to 212°F (100°C). Press the Program Mode

in the new setpoint (or the old setpoint, if it was not changed).

switch to lock

5. S ELP (Select Product) will appear in the left display. Press the product button to be

programmed (or press to return to the normal operating mode).

6. COOC (Cook Time) will now show in the left display. Any previously programmed

cooking time will appear in the right display. Pressing will accept the current cooking

time. To change the cooking time, enter the new time using the product buttons. The cook

time can be programmed up to 59:59. Press

to lock in the new time.

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NOTE: The computer can be programmed for either “standard” or “slow” clock speed.

The standard clock displays minutes and seconds, the slow clock displays hours and minutes.

To toggle back and forth between clock speeds, press the Program Mode

switch, then

enter the code 1 6 5 3 using the product buttons.

To determine if the clock speed is set to standard or slow, initiate a cook cycle by

pressing a product button. If the computer is set to the standard clock, the time in the

LED display will immediately begin to count down. If it does not, the computer is set to

the slow clock.

7. S h 1 (Stir Time 1) appears in the left display. If your product requires stirring during the

cooking process, set the number of seconds to cook before stirring using the product buttons.

If your product does not require stirring, enter “0”. The number entered will appear in the

right display. The stir time can be programmed up to 59:59, but cannot exceed the product

cook time. Press

to lock in the programmed time.

S h 2 will appear. Program the time of the second stir time as above. Be sure the time

entered is greater than S h 1 or else is “0”.

S h 3 will appear. Program the length of the third stir time in the same manner as for Stir

Times 1 and 2. Be sure that the time entered is greater than S h 2 or else is “0”.

For example, entering “30” means the product needs to be stirred after it has been cooking

for thirty seconds. At the end of thirty seconds, an alarm will sound and the product switch

will flash until cancelled by the operator pressing the product button.

CAUTION

Remember: S h 2 must be greater than S h 1 (or else be “0”). S h 3 must be greater than

S h 2 (or else be “0”). None of the stir times can be greater than the cook time entered in

Step 6.

8. S ELP (Select Product) will again appear in the left display. If more products are to be

programmed, follow Steps 5 through 8 for each additional product.

9. When you complete your programming, lock in the whole program by pressing the

Temperature Check/Program Lock Switch

3.2.2

Operating the Computer

Turn the computer on by pressing the Power

switch. NOTE: A decimal between digits 1 and 2

in either LED Display indicates the unit is heating.

1. One of the following will normally be displayed:

a. °-Lo, indicating that the water temperature is 11°F (6°C) lower than the setpoint.

b. “- - - -” indicating that the water temperature is in the cooking range. NOTE: For best

results, cooking should not be attempted unless the display indicates “- - - -”.

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NOTE: You may also see one of these indicators of abnormal operation:

¾ °-Hi, indicating that the water temperature is 11°F (6°C) higher than the setpoint

¾ HELP, indicating a heating problem.

¾ Prob, indicating that the computer temperature probe circuit is open.

2. Press a product button to start a cook cycle.

a. The programmed cook time will appear and the countdown begins.

b. If stir times are programmed, the operator will be notified to agitate the product a

predetermined number of seconds after the cook cycle has begun. An alarm will sound, the

display will read St i r, and the LED in the product button will blink. To cancel the alarm,

press the indicated product button.

If no stir times have been programmed, St i rwill not appear during the cook cycle.

CAUTION

Pressing the product button twice while the S h alarm sounds will cancel the cook cycle as

well as the alarm.

c. At the end of the cook cycle, an alarm will sound, COOC will be displayed, and the

associated product button will flash. To cancel the alarm, press the flashing button.

3. To check the frypot temperature at any time, press the Temperature Check

switch once. To

check the setpoint, press the switch twice. If you suspect the temperature probe is defective,

check the temperature of the cookpot with a thermometer or pyrometer to verify that the

computer readout is reasonably close to the measured reading.

4. During idle periods when the cooker is on but not in use, “- - - -” should appear in both displays,

indicating that the cookpot is at setpoint. If not, check the actual temperature and setpoint.

SELECTING FAHRENHEIT– CELSIUS DISPLAY MODE

1. The computer can display temperatures in either Fahrenheit or Celsius. To change from one to

the other, press the Program Mode Switch

. Co d E will appear in the left display.

2. Enter the code number 1 6 5 8 on the number keypad. The computer will toggle the

temperature display from Celsius to Fahrenheit or from Fahrenheit to Celsius.

3. Press the Temperature Check/Program Lock Switch

selected mode.

to display the temperature in the newly

SELECTING STANDARD OR SLOW CLOCK

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The computer can be programmed for either “standard” or “slow” clock times. The standard clock

displays minutes and seconds, the slow clock displays hours and minutes.

To toggle back and forth between times press the Program Mode

1 6 5 3 using the product buttons.

switch, then enter the code

SELECTING BOIL OR SIMMER MODE

In the SIMMER mode, the water temperature is maintained at the setpoint programmed by the

operator. In the BOIL mode, the water temperature is raised to 212°F (100°C).

Select the SIMMER mode by pressing the R button. If the temperature of the water is above the

setpoint, °-hi will be displayed. If the temperature of the water is below the setpoint, °-lo will be

displayed. If the temperature is within 11°F (6°C) of the setpoint, “- - - -” will be displayed.

The BOIL mode is selected by pressing the L button. The display will show b o il and the

temperature of the water will be raised to 212°F (100°C).

3.2.3

Shutting the EWBS with CM III Computer Down

switch.

Turn the unit off by pressing the Power

If shutting down at the end of the day, drain and clean the cookpot, and put the cookpot cover in

place.

CAUTION

The electronic circuitry in your computer can be affected adversely by power fluctuations

and electrical storms. If it fails to function or program properly for no apparent reason, try

unplugging the computer from the interface board and plugging it back in. This could

prevent a service call.

3.3

Thermostat Control and Switch Panel (Used on ESW and EWBS Units)

BOIL

IDLE

POWER

TROUBLE

SIMMER

OFF

POWER

HEAT CYCLE

FAUCET

SKIM

THERMOSTAT CONTROL

SWITCH PANEL

CAUTION

If this is the first time the unit is being used after installation, refer to Section 3.4, Boil Out

Procedure.

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On ESW units and EWBS units without CM III computers, a thermostat located inside the door

maintains the simmer mode temperature. Rocker switches on the control panel turn the power on

and off, control the heat cycle, and add water.

When the Power switch is placed in the ON position, the white power indicator will illuminate. If

the unit is equipped with the AutoFill feature and the water level in the cookpot is below the upper

water level sensor, the cookpot will immediately begin to fill with water. If the Heat Cycle switch is

in the ON or SIMMER position, the heating element will energize as soon as the lower water level

sensor is covered with water. Illumination of the red trouble light at anytime indicates that the high-

limit safety has tripped. If the red trouble light illuminates, place the Power switch in the OFF

position immediately.

When the Heat Cycle switch is placed in the IDLE position, the heating element is de-energized, but

power to the Faucet and Skim switches is maintained. Placing this switch in the SIMMER position

maintains the water at the temperature indicated on the thermostat control dial. The switch is placed

in the BOIL position for cooking product or reheating packaged sauces. A built in low-water safety

feature prevents the heating element from being energized unless the lower water level sensor is

covered with water, regardless of the position in which the switch is placed.

On units with the AutoFill feature, placing the Power switch to the ON position activates the feature,

causing the water solenoid valve to open, adding water to the cookpot until the water level reaches

the upper water level sensor. When the water reaches the upper sensor, the valve closes. As long as

the switch is in the ON position, whenever the water level drops below the upper water level sensor,

water will be automatically added to the cookpot. If the switch is placed in the OFF position, the

AutoFill feature is disabled. On units without AutoFill, the cookpot must be manually filled by

placing the faucet switch in the ON position. The switch must be placed in the OFF position to stop

the water flow.

The Skim switch allows the operator to add water to the cookpot during the cooking cycle. This

causes any accumulation of starch floating on the surface of the water to be washed down the

overflow drain. Water will be added as long as the switch is in the ON position.

Turn the unit off by placing the Heat Cycle switch in the IDLE position and the Power switch in the

OFF position. If shutting down at the end of the day, drain and clean the cookpot, and put the

cookpot covers in place.

3.4

Boiling Out the Cookpot

The cookpot must be boiled out before first use.

1. Close the drain valve and fill the cookpot with a mixture of cold water and 1 cup of detergent.

2. Place the unit into operation. (See Section 3.1.2 for 8SMS, 8BC or 8C units. See Section 3.2.2

for EWBS units.)

3. Press the simmer switch,

on 8SMS, 8BC and 8C units or R on EWBS units, and allow the

solution to simmer for at least 1 hour.

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4. After the solution simmers for 1 hour, turn the unit off and add cold water until the solution is

cool. Drain the solution and clean the frypot thoroughly. Rinse the cookpot at least twice by

filling with clean water and draining. Dry the cookpot thoroughly with a clean, dry towel.

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 4: PREVENTIVE MAINTENANCE

Daily Preventive Maintenance

It is normal for a coating of starch to form on the elements, sensors, and temperature probes during

operation. If the coating is allowed to build-up, it will adversely affect the operation of the

equipment. The preventive maintenance routines below should be performed at least daily to keep

your equipment functioning at peak efficiency.

Inspect Equipment and Accessories for Damage

Look for loose or frayed wires and cords, leaks, foreign material in cookpot or inside cabinet,

and any other indications that the equipment and accessories are not ready for safe operation.

Clean Cabinet Inside and Out

Clean inside the cabinet with a dry, clean cloth. Wipe all accessible metal surfaces and

components to remove accumulations of oil, dust, or cooking residue.

Clean the outside of the cabinet with a clean cloth dampened with dishwashing detergent,

removing oil, dust, or cooking residue.

DANGER

Never attempt to clean this equipment during the cooking process or when the

cookpot is filled with hot water and/or food products.

Clean Water-Level Sensors, Temperature Sensor, Element, and Cookpot

Turn the equipment off and drain the cookpot.

Clean the water level sensors (located in the front of the cookpot behind the sensor cover).

Normally, a bottlebrush and a solution of detergent and water may be used to clean the sensors

with the cover installed. If the sensors become coated with an unusually heavy layer of starch

or lime, the cover may be removed to better access the sensors for cleaning using a Scotch-

brite™ or similar abrasive pad and a solution of detergent and water.

Using a Scotchbrite™ or similar abrasive pad and a solution of detergent and water, clean the

inside of the cookpot. Pay particular attention to the heating element.

Rinse the cookpot thoroughly with clean water at least twice.

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 5: OPERATOR TROUBLESHOOTING

5.1

Introduction

This chapter provides an easy reference guide to the more common problems that may occur during

the operation of this equipment. The troubleshooting guides in this chapter are intended to help you

correct, or at least accurately diagnose, problems with the equipment. Although the chapter covers

the most common problems reported, you may very well encounter a problem not covered. In such

instances, the Frymaster Technical Service Department will make every effort to help you identify

and resolve the problem.

When troubleshooting a problem, always use a process of elimination starting with the simplest

solution and working through to the most complex. Never overlook the obvious. Anyone can forget

to plug a cord into a receptacle or open the valve on the water supply line. Don’t assume that you

are exempt from such occurrences. Most importantly, try to establish a clear idea of why a problem

has occurred. Part of your corrective action involves taking steps to ensure that it doesn’t happen

again. Keep in mind that failure of a small component may often be indicative of potential failure or

incorrect functioning of a more important component or system.

Some of the troubleshooting actions recommended in this chapter involve removing suspect

controllers and substituting controllers that are known to be good, if they are available. Whenever

this is indicated, refer to Section 5.3. Refer to Section 5.4 for instructions on replacing fuses in

17EC and 17ECS models.

If the troubleshooting and corrective actions in this chapter do not solve the problem, the problem is

probably beyond the scope of most operators to solve and you should call your FASC for assistance.

If you have doubts as to the proper action to take, do not hesitate to call the Frymaster Technical

Service Department or your local Frymaster Factory Authorized Service Center for assistance.

Before calling a servicer or the Frymaster HOTLINE (1-800-551-8633):

• Verify that electrical cords are plugged in and that circuit breakers are on.

• Verify that water supply valves are open and that drain valves are fully closed.

DANGER

Hot water can cause severe burns. Never attempt to move a cooker containing hot

water or to transfer hot water from one container to another.

DANGER

Use extreme care when performing electrical circuit tests. Live circuits will be

exposed.

WARNING

Inspection, testing, and repair of electrical components should be performed only by

qualified service personnel. The equipment should be unplugged when servicing,

except when electrical tests are required.

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5.2

Operator Troubleshooting Guide

PROBLEM PROBABLE CAUSES

CORRECTIVE ACTION

A. Turn on circuit breaker.

B. Place Master Power switch in ON

position.

A. No power to unit.

B. Master Power switch in

OFF position (17EC and

17ECS models only).

Controller does not

activate.

C. Controller not turned on.

D. Blown fuse (17EC and

17ECS models only).

C. Push power switch.

D. Replace fuse (see Section 5.4)

A. Water not turned on.

B. Defective controller.

A. Turn water on.

B. Replace controller (see Section

5.3).

Autofill does not add

water.

A. Dirty upper water level

sensor.

B. Insufficient mineral

content in water.

A. Clean sensor.

Autofill does not shut

off when the cookpot

is full.

B. Add ⅛-cup baking soda to cookpot.

C. Defective controller.

C. Replace controller (see Section

5.3).

A. Dirty low water level

sensor.

B. Insufficient mineral

content in water.

A. Clean sensor.

Water will not heat

(controller is on, water

is at normal level, but

LO is not showing on

the controller).

B. Add ⅛ cup baking soda to cookpot.

C. Defective controller.

C. Replace controller (see Section

5.3).

Water will not heat

(water above lower

water level sensor and

LO is showing on the

controller).

Defective controller.

Replace controller (see Section 5.3).

Water heats but does

not boil.

Defective controller.

Replace controller (see Section 5.3).

Controller out of adjustment.

Adjust controller in accordance with

Section 3.1.3 (17EC/17ECS) or 3.2.2

(EWBS).

Water boils in simmer

mode.

Water temperature is

too low in simmer

mode.

Controller out of adjustment.

A. Operator error.

Adjust controller in accordance with

Section 3.1.3 (17EC/17ECS) or 3.2.2

(EWBS).

A. Push timer start switch

(17EC/17ECS) or a product button

(EWBS with CM III controller).

B. Replace controller (see Section

5.3).

Timer does not count

down.

B. Defective controller.

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Troubleshooting Guide (Continued)

PROBLEM

Autoskim does not

add water (Autofill

operating correctly)

PROBABLE CAUSES

Defective controller.

CORRECTIVE ACTION

Replace controller (see Section 5.3).

A. Blown fuse (17EC and

17ECS models only).

B. Roller jammed.

A. Replace fuse (see Section 5.4)

B. Adjust roller.

C. Lifter rod jammed.

C. Check for free movement.

Lubricate with white grease.

D. Replace controller (see Section

5.3).

Basket Lift does not

function correctly.

D. Defective controller.

E. Loose or misadjusted

microswitch.

E. Check switch adjustment. Adjust

as required.

5.3

Replacing the Controller (17EC/17ECS and EWBS with CM III Computer)

1. Disconnect the cooker from the electrical supply.

2. Remove the two screws in the upper corners of the control panel and swing the panel open

from the top, allowing it to rest on its hinge tabs.

3. Disconnect the wiring harness from the back of the controller.

4. Disconnect the ground wire from the controller. Remove the controller by lifting it from the

hinge slots in the frame.

5. Reverse the procedure to install a new controller.

Wiring Harness

Connection

Ground Wire

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5.4

Replacing Fuses in 17EC and 17ECS Models

1. Disconnect unit from electrical power and remove the cover from the contactor box.

2. The 5-amp fuses are located on the left side of the box. The fuse for the controller is located

nearest the front of the box. Use a fuse puller to remove the blown fuse and install the

replacement.

This fuse is for the controller.

Master Power Switch

Remove this screw and lift the

cover from the contactor box.

This fuse is for the basket lift.

3. Replace the component box cover, and reconnect the unit to the electrical power supply.

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 6: 17EC/17ECS SERVICE PROCEDURES & PARTS

6.1

Functional Description

The 17EC Electric Cooker contains a 16.5-gallon (62.5-liter) stainless steel cookpot. The water in

the cookpot is heated by a pair of 8.5-kilowatt heating elements. Electrical power to the elements is

controlled by a solid-state SMS III Spaghetti Magic computer specifically modified for this

application. NOTE: The SMS III computer used in the 17EC is identical in appearance to the SMS

III computers used in other model lines, but differs internally. Use only P/N 106-0385 SMS III

computers on this equipment. The 17EC is equipped with a basket lift, and also features automatic

filling (AutoFill) and automatic skimming (AutoSkim). This model also has a swing-away jointed

faucet. The 17ECS model has an attached 16.5-gallon (84.1-liter) rinse tank.

Turn the Master Power Switch ON and press the computer Power switch. A logic circuit checks the

water level by looking for a ground at the upper water-level sensor. A normally closed solenoid

valve opens if no ground is seen, indicating water is below the sensor, and water enters the cookpot.

The unit enters the Simmer mode when the heating elements are covered (indicated by grounding of

the low-water sensor). The cookpot continues to fill until water reaches the upper water-level sensor

and the solenoid closes. The cooker stays in Simmer mode until the Boil mode switch is pressed or

the unit is turned off. The water solenoid valve opens anytime the water level is below the upper

water-level sensor.

Logic circuits in the computer monitor the temperature and cycle power on and off to maintain the

simmer setpoint. (See Chapter 3 for instructions on adjusting the setpoint.) The cooker also has a

high-limit safety. If the cookpot fails to refill and the water level drops below the low-water sensor,

the high-limit will open, cutting off power to the elements, when the element temperature reaches

400 ±15ºF.

Pressing the Skim switch activates the AutoSkim feature. A logic circuit in the computer opens the

solenoid valve in the water supply line for three seconds every minute until the option is turned off

by again pressing the Skim switch.

The operator enters a cooking time by pressing the number pads on the computer. The computer

counts down the cook cycle time when the Start switch is pressed. When the computer times out, an

alarm sounds briefly, then the timer reverts to the last time entered.

Logic circuits in the computer also activate the basket lift motors when the Start switch is pressed,

lowering the basket into the cookpot. A pair of motors drive the basket lift arms down until a cam

attached to the left motor loses contact with a roller-activated microswitch and power to the motors

is cut. When the computer times out, the logic circuits reverse the switch positions so that the motor

circuit is again completed and the motors are restarted, raising the basket from the cookpot. The

cam again makes contact with the microswitch at the raised position, cutting power to the motors

and stopping the lift in the up position.

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6.2

Accessing Equipment for Servicing

DANGER

Moving this equipment while it is filled with hot water may cause spilling or

splattering of the hot water. Always drain the cookpot before attempting to relocate

this equipment for servicing.

1. Disconnect the unit from the electrical power supply and from the water supply.

2. Remove any attached restraining devices.

3. Relocate the unit for service accessibility.

4. After servicing is complete, reconnect the unit to the water supply, reattach restraining devices,

and reconnect the unit to the electrical power supply.

6.3

Replacing Equipment Components

Replacing the Computer

6.3.1

See Section 5.3.

6.3.2

Replacing Electronic Components Other than the Computer

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Remove the covers from the component box. Refer to the illustration below to locate the

component to be replaced.

Solid State Relays

Delta Power Block

Fuse Blocks

and Fuses

Master Power Switch

Transformer

Contactor Block

Basket Lift Relay

3. On the component to be replaced, make a note of the wiring connection points.

4. Disconnect the wires and remove the failed component. Install the replacement component and

reconnect the wiring in accordance with the notes made in Step 3 or with the wiring diagram on

the door of the unit.

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5. Replace the component box covers, being sure to reconnect the ground wire. Reconnect the

cooker to the electrical power supply.

6.3.3

Replacing a Heating Element

1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

unit from the water supply at the rear of the cooker. Remove the basket lift arms from the unit.

2. Reposition the cooker to allow clear access to the rear of the unit. Remove the upper and lower

basket lift panels.

3. Unplug the element connector from the rear of the

component box. Depress the locking tabs on each side of

the connector and extend the connector to release the

element leads (see photo at right). Pull each of the leads out

of the connector, being careful not to damage the connector

in the process.

4. If the bundle of element leads is enclosed in a fiberglass

insulating sheath, cut the wire ties securing the sheath in

place, and remove and discard it; it is no longer required. If

replacing the left element (as viewed from the front of the

cooker), cut the metal wire ties that secure the high-limit

thermostat to the element, being careful not to bend the

thermostat in the process.

5. Remove the brass nuts that secure the element in the cookpot and lift the failed element from the

cookpot. Recover the Teflon washers from the failed element for use on the replacement.

Remove these nuts to remove

element from cookpot.

Standoffs

6. Position the replacement element in the cookpot with the standoffs on the bottom of the cookpot.

Thread the element leads through the Teflon washers recovered from the failed element. Secure

the element in place with the nuts removed in Step 5.

7. If the left element (as viewed from the front of the cooker) was replaced, secure the high-limit

thermostat against the inside of the leg of the element with two metal wire ties.

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8. Insert the pins on the element leads into the element connector in accordance with the illustration

below. The insulation on the lead will be flush with the face of the plug when properly

positioned. When all leads are positioned correctly, close the connector and verify that the tabs

are locked in place. Each element lead is marked with a number that corresponds to the hole in

the connector into which it should be inserted. The right element (as viewed from the rear of the

unit) uses the 6-pin connector; the left element uses holes 1 through 6 of the 9-pin connector.

Note "D" pin and "pip"

indentifying Hole 1.

Lead 1

Lead 3

Note "D" pin and rib

indentifying Hole 1.

9. Bundle all six element leads together and secure with plastic wire ties close to the element and

connector, and in the middle.

10. Reverse Steps 1 through 3 to complete the procedure.

6.3.4

Replacing the High-Limit Thermostat

1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

unit from the water supply at the rear of the cooker. Remove the basket lift arms from the unit

and cut the metal wire ties securing the thermostat tube to the element.

2. Reposition the cooker to allow clear access to the rear of the unit. Remove the upper and lower

basket lift panels.

3. At the rear of the cookpot, loosen the small compression nut, and then unscrew the large fitting

from the cookpot. Pull the thermostat tube out through the rear of the cookpot.

Loosen the small

compression nut first.

Unscrew the large fitting

only after loosening the

small compression nut.

4. Detach the high-limit thermostat leads (5C and 8C) from the thermostat. Remove the two screws

securing the thermostat to the mounting bracket and remove the thermostat assembly from the

cabinet. (NOTE: It is not necessary to remove the bracket.)

6-4

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5. Loosen the small compression nut in the large fitting on the replacement thermostat so that the

large fitting will move freely on the capillary tube (the thin, flexible tube). Carefully insert the

replacement thermostat into the cookpot, being careful not to bend the thermostat tube. Position

the tube along the inside of the left leg of the element (as viewed from the front of the cooker)

and secure it in place with two metal wire ties. Apply thread sealer to the large fitting and screw

the fitting securely into the cookpot. When the large fitting is tight, pull gently on the capillary

tube to remove any slack, then screw the small compression nut into the large fitting and tighten.

6. Coil the capillary tube as necessary to achieve a neat installation and attach the terminal block to

the mounting bracket using the screws removed in Step 4. Connect thermostat lead 5C (black) to

the normally closed (NC) terminal and 8C (white) to the common (C) terminal.

Common (C) Terminal

(Note open side.)

Normally Closed (NC) Terminal

(Note closed side.)

7. Reverse Steps 1 and 2 to complete the procedure.

6.3.5 Replacing a Water-Level Sensor

Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

sensor lead from the sensor, remove the nuts securing the sensor in place, and remove the sensor.

Install the replacement sensor as illustrated below and reconnect the lead.

Insulator must seat in

hole before nut is

tightened.

Inside of cookpot.

6.3.6

Replacing the Temperature Probe

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Remove the three screws along the upper edge of the control panel and open the panel by

allowing it to swing downward.

3. Disconnect the 15-pin connector from the rear of the computer and, using a pin pusher (such as

Frymaster P/N 806-4855), push out the temperature probe (red and white) leads from positions

13 and 14 on the connector.

6-5

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4. Remove the temperature probe by unscrewing it from the front of the cookpot.

5. Apply thread sealer to the replacement probe and screw it securely into the cookpot.

6. Insert the red probe lead into position 13 of the 15-pin connector and the white lead into position

14. Pull gently on each lead to ensure it is firmly seated.

Insert red lead into position 13.

Insert white lead into position 14.

7. Reattach the 15-pin connector to the rear of the computer, close the control panel, and replace the

three screws removed in Step 2.

6.3.7

Replacing the Pressure Regulator or Solenoid Valve

1. Drain the cookpot and disconnect the cooker from the electrical power supply. Turn off or

disconnect the water supply to the cooker.

2. Loosen the compression fittings on the water lines running to and from the regulator and remove

the regulator from the unit. (NOTE: If the cooker is equipped with the optional Autofill feature,

the solenoid valve is installed between the regulator and the cookpot. If that is the case,

disconnect the solenoid leads and remove both the regulator and solenoid valve from the unit.)

Optional Solenoid Valve

Compression Fitting

Regulator must be rotated

to clear drain plumbing.

Compression Fitting

6-6

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3. If replacing the regulator, adjust the replacement regulator output pressure to not more than 40

PSI (28.15 kg/cm²) before installation in the cooker.

4. Recover the fittings from the failed component (regulator or solenoid valve) and install them on

the replacement, using thread sealer on all connections.

5. Reverse Steps 1 and 2 to complete the procedure, being sure to apply thread sealer to all

connections. NOTE: The regulator must be rotated approximately 45 degrees to clear the drain

plumbing (see illustration at Step 2).

6.3.8

Replacing the Water Faucet

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Turn off the water supply to the cooker and disconnect the incoming water lines where they

attach to the stubs at the rear of the cooker.

3. Remove the two screws securing the access panel in place and remove the panel.

4. Disconnect the water supply line at the compression fitting where it attaches to the water inlet

manifold. Remove the screws from the faucet mounting plate and lift the faucet assembly from

the unit.

Remove screws to remove the

faucet mounting plate.

Remove this nut to separate the

faucet from the mounting plate.

Loosen this nut to separate

the faucet from the water

inlet manifold.

Disconnect this

compression fitting.

5. Separate the faucet from the water inlet manifold and mounting plate as shown in the illustration

at Step 4.

6. Reverse Steps 1-5 to complete the procedure.

6.3.9

Replacing a Basket Lift Motor or Microswitch

1. Disconnect the cooker from the electrical power supply.

6-7

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2. If rigid water connections have been used, disconnect the cooker from the incoming water

supply.

3. Remove the basket lift arms from the lifter rods and then reposition the cooker to gain access to

the rear. Remove the upper and lower basket lift rear panels.

4. Unplug the basket lift wiring harness from the lower 6-pin connector on the component box. (To

do this, you must reach around behind the component box from the front of the cooker.)

Disconnect basket lift wiring

harness from this connector.

5. Disconnect the basket lift link from the lifter cam (bell crank) assemblies one at a time. When

the link is disconnected from a cam, slip the corresponding lifter rod down and out of the

assembly (see illustration below).

Lifter Rods

Link

Disconnect the basket lift link from

the lifter cams and slip the lifter rods

down and out of the assembly.

6. Remove the four bolts securing the motor mount to the frame, then remove the motor and mount

assembly from the unit. NOTE: It is possible to replace a motor or the microswitch without

removing the motor and mount assembly, but it is much more difficult.

7. Dismount the motor or microswitch as shown below and install the replacement.

NOTE: The right motor dismounts

in the same way as the left.

Loosen setscrew in bottom

of cam (bell crank).

8. Reverse Steps 1-7 to complete the procedure.

6-8

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6.3.10 Replacing the Cookpot or Rinse Tank

Remove these four screws.

1. Remove the faucet assembly from the

cooker in accordance with Steps 1-4 of

Section 6.3.8.

2. Remove the screws that secure each of the

rear corners of the backsplash assembly (see

illustration at right). NOTE: To access the

screw in the lower right corner (as viewed

from the rear) remove the upper basket lift

panel.

3. Remove the screws along the top edge of

the control panel and open the panel by

swinging it downward. Disconnect the 15-

pin connector from the rear of the computer,

and then lift the control panel out of the

control panel frame.

4. Remove the screws that secure the

backsplash sides to the cabinet sides then

remove the four screws that secure the

topcap to the cabinet. Remove the nut and

washer securing the basket support rod to

the topcap by reaching up through the

control panel frame. Conversely, the

backsplash and topcap, with the basket

Remove these

screws (on both

sides) to remove

backsplash and

topcap.

Remove these screws to

dismount the control panel.

support rod still attached, can be lifted up

and off the cooker as one unit.

5. Remove the screws attaching the standoff

brackets to the cookpot or rinse tank.

Remove these screws to release

the pots from the standoff brackets.

6. If removing the cookpot, unplug the element

wiring harnesses from the rear of the

contactor box. Disconnect the high-limit

thermostat leads and the water-level sensor

leads.

Using a pin-pusher (such as

Frymaster P/N 806-4855), disconnect the

temperature probe leads from the 15-pin

connector.

7. Disconnect the union joining the cookpot

and rinse tank drain piping together.

8. With an assistant, lift the cookpot or rinse

tank straight up and out of the cabinet.

6-9

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9. Invert the cookpot or rinse tank on a suitable work surface and remove the salvageable

components (e.g., elements, thermostats, drain plumbing, etc.). Install the recovered components

on the replacement cookpot or rinse tank, using thread sealer on all connections.

10. Reverse Steps 1 through 8 to complete the procedure.

6.4

Troubleshooting

NOTE: 24VAC power to the electronic components of this system is controlled by the master

ON/OFF switch located on the front of the contactor box. If this switch is in the OFF position, none

of the system components will function.

DANGER

The master ON/OFF switch does not disconnect this equipment from the electrical power

source! Line voltage is supplied to the transformer and to the basket lift motors as long as the unit

is plugged in.

Problems with this equipment may be grouped into five broad categories:

1. Failure or malfunction of a 24VAC Power-Supply System component.

2. Failure or malfunction of the Computer.

3. Failure or malfunction of an Autofill/AutoSkim System component.

4. Failure or malfunction of a Water Heating System component.

5. Failure or malfunction of a Basket Lift System component.

Sections 6.4.1 through 6.4.5 briefly explain the functioning of each of the systems mentioned above.

Section 6.4.6 contains troubleshooting guides that provide systematic procedures to isolate and

identify the specific source of a problem. A wiring diagram is located at the end of the chapter.

6.4.1 How the Power-Supply System Works

Line voltage is supplied to the system via a power cord that is plugged or hard-wired into the store’s

electrical service. The power cord is attached to a three-lug delta-power terminal block. One set of

wires delivers line voltage from the load side of the block to Terminal 1 of each of the solid-state

relays. A second set of wires delivers line voltage through a pair of 5-Amp fuses to the 24VAC

transformer and to the basket lift relay. Line voltage for one side of the basket lift motor circuit is

tapped from a “piggy-back” terminal on the line side of the transformer. Line voltage for the other

side of the circuit is supplied via the basket lift relay. 24VAC is supplied to the equipment by

placing the master ON/OFF switch in the ON position, which grounds the transformer.

6.4.2 How the Computer Works

The SMS III computer provides the interface between the operator and the system components. The

computer is powered by 24VAC supplied through Pins 1 (hot) and 2 (ground) of the 15-pin wiring

harness. Internal circuitry senses the water level, water temperature, and element temperature.

Depending upon the conditions sensed, the computer energizes or de-energizes the solenoid valve to

control water level and the heating elements to control water temperature. The computer also

controls the lowering and raising of the basket lift, and activates an audible alarm to signal the

operator that a cooking cycle has completed. A rectifier in the computer coverts 24VAC to the

6-10

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24VDC required by the basket lift relay and the solid-state heating relays. The computer signals for

heat via Pin 4, grounds the solenoid valve via Pin 6, and senses water level via Pins 7 (low) and 9

(full). The temperature probe connects to Pins 13 and 14. The basket lift relay connects to Pins 10

and 12. The sound device connects to Pin 11.

6.4.3 How the Autofill/AutoSkim System Works

The heart of the automatic filling (Autofill) system is a normally closed solenoid valve that opens

when 24VAC is applied.

The ground for the solenoid is supplied (via Pin 6 of the computer wiring harness) so long as the

upper water-level sensor is not in contact with the water in the cookpot. When the water in the

cookpot reaches the upper water-level sensor, the sensor is grounded. This causes the computer to

break the solenoid ground, closing the valve. Starch or lime build-up on the upper water-level

sensor may keep a ground from forming, therefore always make sure the sensor is clean and its lead

(Pin 9 of the computer wiring harness) is firmly connected. Also, in order for the ground to form,

there must be some mineral content in the water (pure water is non-conductive). Consequently, the

units will not operate with distilled water. If distilled, highly filtered, or purified water is used, add

⅛-cup of baking soda to the water each time the cookpot is emptied and refilled.

When the AutoSkim feature is activated by pressing the skim switch on the computer, a logic circuit

in the computer automatically opens the solenoid valve for three seconds every minute until the

switch is again pressed. If the Autofill feature is working properly, failure of the AutoSkim feature

will be due to a malfunctioning computer and not the solenoid valve. (Proper operation of the

Autofill feature can be determined by draining water from the cookpot until the water level is below

the upper water-level sensor. If the solenoid valve opens and then closes when the water in the

cookpot again reaches the upper water-level sensor, the Autofill feature is working properly.)

6.4.4 How the Water Heating System Works

To prevent energizing the heating elements when there is no water in the cookpot, these units are

equipped with a low-water-level sensor. This sensor must be grounded by contact with water in the

cookpot before the control circuitry will apply power to the elements. Starch or lime build-up on the

low-water-level sensor may keep the ground from forming, therefore always make sure the sensor is

clean and its lead (Pin 7 of the computer wiring harness) is firmly connected. In order for the ground

to form, there must be some mineral content in the water (pure water is non-conductive).

Consequently, the units will not operate with distilled water. If distilled, highly filtered, or purified

water is used, add ⅛-cup of baking soda to the water each time the cookpot is emptied and refilled.

In addition to the low-water-level sensor discussed above, the water heating system has six more

parts: the high-limit thermostat, the temperature probe, the contactor, the element, a group of three

solid-state relays, and the computer.

The high-limit thermostat functions as a normally closed switch. If the water in the cookpot falls

below the low-water-level sensor but the sensor remains grounded (for whatever reason), the high-

limit switch will open when the element temperature reaches 400ºF ±15 (204ºC ± 9). This cuts

power to the contactor coil and thus to the element.

6-11

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The temperature probe is used only when the unit is in the simmer mode. When the operator

selects the simmer mode, logic circuits in the computer monitor the temperature of the water and

cycle power to the element on and off as required to maintain the temperature at the setpoint

programmed into the computer.

The contactor is the terminal block to which the element leads are connected and where actual

contact is made between the leads and the line voltage. Built into the contactor is a 24VAC coil that

energizes when the master ON/OFF switch is placed in the ON position. When it energizes, contact

is made between the incoming line voltage and the element leads, and line voltage is supplied to one

side of the element circuit. The solid-state relays control the supply of line voltage to the other side

of the element circuit. The relays are closed when the computer is calling for heat and open when it

is not.

The element is a resistive heating device. That is, when voltage is applied to the element, the

element gets very hot due to its resistance to current flow through it. The heat generated is

transferred directly to the water in which the element is immersed.

The computer is the interface between the operator and the other components of the equipment. In

the water heating system, its function is to control the application of line voltage to the heating

element via the solid-state relays.

When in the Simmer Mode, the signal from the computer is continuous, the solid-state relays are

continuously closed, and line voltage is applied to the elements until the simmer setpoint

(195ºF/90.6ºC) is reached.

When in the Boil Mode, the signal from the computer is continuous for approximately the first 40

seconds, then changes to a series of on-off pulses of equal duration. The solid-state relays close

and open in response to the signal from the computer, and line voltage is applied to the elements

accordingly. (The pulsing of the line voltage to the elements prevents the water in the cookpot

from reaching a vigorous, roiling boil. This, in turn, minimizes the formation of starch foam. An

added benefit of the pulsing is reduced electrical power consumption.)

6.4.5 How the Basket Lift System Works

When the Start switch is pressed to start the cooking cycle, logic circuits in the computer activate the

basket lift motors, lowering the basket into the cookpot. As the motors drive the basket lift arms

down, a cam attached to the left motor eventually loses contact with a roller-activated microswitch

and power to the motors is cut. When the computer times out, logic circuits reverse the switch

positions so that the motor circuit is again completed and the motors are restarted, raising the basket

from the cookpot. At the fully raised position, the cam again makes contact with the microswitch,

cutting power to the motors and stopping the lift in the up position.

6-12

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6.4.6 Technician Troubleshooting Guides

TROUBLESHOOTING THE 24VAC POWER SUPPLY SYSTEM

Verify that the power cord is

properly connected to the

electrical service and that

the circuit breaker is not

tripped.

The primary indicator of a

problem with the 24VAC

Power Supply System is a

failure of the computer to

activate when the master

ON/OFF switch is placed

in the ON position and the

computer ON/OFF switch

is pressed.

Place the master ON/

OFF switch in the ON

position.

Was there an

audible snap from the

contactor indicating the

coil energized?

24VAC Power Supply

Yes

System is OK.

Is 24VAC present

across Pins 1and 2

of the 15-pin connector

on the front of the

contactor box?

Causes are broken or loose wiring

or a failed contactor. If wiring and

connections are verified to be intact,

replace contactor.

Yes

Verify continuity of

master ON/OFF switch in ON position.

Replace switch as required.

If switch is OK, causes are broken

or loose wiring. Check connections and

replace wiring as required.

Is line voltage

present on the line side of

the transformer?

Is 24VAC

present on the load side of

the transformer?

Yes

Transformer has

failed. Replace.

Check 5-amp transformer

fuse. Replace if blown. If fuse

is OK, cause is loose or broken

wiring, or the electrical service

circuit is dead.

6-13

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TROUBLESHOOTING THE 24VAC POWER SUPPLY TO THE COMPUTER

Place the master ON/

OFF switch in the OFF

postion, then back in

the ON postion. Press

the ON/OFF switch on

the computer.

There is a problem in

Was there an

Did the

computer

activate?

the 24VAC Power Supply

System. Refer to the

troubleshooting guide on

Page 6-14.

audible snap from the

contactor indicating the

coil energized?

Yes

Is 24VAC

present across Pins

1 and 2 of the wiring

harness?

Cause is a loose

or broken wire in

the wiring harness.

Yes

24VAC is reaching

computer.

6-14

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TROUBLESHOOTING THE AUTOFILL SYSTEM

Verify that unit is connected to the

water supply and that water supply

is turned on.

Drain the water in the cookpot to a

level below the upper water-level

sensor.

Place the master ON/OFF switch

in the ON position.

Press the computer ON/OFF

switch.

Remove the water-

level sensor guard

and thoroughly clean

the sensors.

Did unit

begin to fill?

Check sensor and wiring.

If they are NOT grounded,

the computer has failed.

Replace.

Is voltage across

Pins 2 and 6 of computer

15-pin connector zero?

Did unit

begin to fill?

If they ARE grounded, repair

or replace as required.

Yes

If 24VAC is NOT present

across Pins 2 and 3 of the

contactor box 15-pin connector,

check connections and wiring to

solenoid valve. If wiring and

connections are intact, the valve

has failed. Replace.

Yes

Check resistance

through Pins 2 and 9 of

the computer 15-pin

connector. If it is less than 1

ohm, the computer has failed.

Replace.

Did water

shut off when water

reached the upper water-level

sensor?

Is 24VAC

present across Pins

2 and 6 of the computer

15-pin connector?

If it is 1 ohm or greater, repair

wiring between sensor and

computer or replace

sensor as required.

Yes

Autofill system is OK.

6-15

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TROUBLESHOOTING THE WATER HEATING SYSTEM

Each of the following checks is to be performed with the unit connected to the

electrical power supply, with the computer ON and calling for heat, and with at least

enough water in the cookpot to cover the lower water-level sensor.

CHECKING

THE TEMPERATURE

PROBE

(Because water boils in

Simmer Mode or water

is too cool in Simmer

Mode.)

CHECKING THE

HIGH-LIMIT

THERMOSTAT

Is resistance

between Pins 5 and

8 of the 15-pin plug

1 ohm or less?

High-limit has

failed. Replace.

Adjust controller in

accordance with instructions

in Section 3.1.3.

If this does not correct the

problem, continue.

Yes

High-limit is OK.

Check probe resistance between Pins

13 and 14. Resistance should be:

Approx 552 ohms @ 60ºF (16ºC)

Approx 655 ohms @ 100ºF (38ºC)

Approx 1000 ohms @ 212ºF (100ºC)

Check resistance between each pin and

ground. Resistance on BOTH should be

2 mega-Ohms or greater.

CHECKING THE

SOLID-STATE RELAYS

AND ELEMENTS

(24VAC Power Supply

verified to be OK..)

Are BOTH readings

within specification?

Probe is open or is

shorted. Replace.

Yes

Place the master ON/

OFF switch in OFF

position then back in

the ON position.

Probe is OK.

CHECKING THE

COMPUTER

With the computer

calling for heat, is voltage across

the input terminals of the relay zero

(24VAC Power Supply

verified to be OK.)

with line voltage across the output terminals?

AND

With the computer NOT calling for heat, is

voltage across the input terminals of

the relay 5-10VDC with no

voltage across the

Relay has failed.

Replace.

Yes

output terminals?

Is 27-33VDC

present at Pin 4 of the 15-

pin plug when computer is

calling for heat?

Computer is OK.

Yes

Solid-state relays are OK.

Ohm out elements (Pins 1 & 6,

2 & 5, 3 & 4). If resistance

is NOT 15 ±3 Ohms, the element

has failed. Replace.

Yes

Computer has

failed. Replace.

6-16

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TROUBLESHOOTING THE BASKET LIFT SYSTEM

If the basket lift motors are activating, but the basket lift

fails to raise or lower, or if its movement is erratic, the

probable cause is jamming or binding of the basket lift

rods. Apply a light-weight white grease (such as

Lubriplate^TM) to the rods. If this does not correct the

problem, check for bent or otherwise damaged rods and

links, and for loose bellcranks.

TROUBLESHOOTING

THE BASKET LIFT

Is 5-Amp

fuse in the

component box

OK?

Replace fuse.

Yes

With the basket lift

in the UP position, is 27-33VDC

present at Pin 10 of 15-pin plug (0

volts if in DOWN position)?

Computer has failed.

Replace.

Yes

With the basket lift

in the UP position, is 27-33VDC

present at relay terminal A

(0 volts if in DOWN

Cause is failed/loose

wiring. Inspect and

repair wiring as

required.

position)?

Yes

With the basket lift

in the UP position, is line voltage

present at the NC (lower) terminal of

the microswitch (middle terminal if in

DOWN position)?

Relay has failed.

Replace.

Yes

With the basket lift in the same

position as for the previous check, is

line voltage present at the Common

terminal of the switch?

Switch has failed.

Replace.

Yes

Motor has failed.

Replace.

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THIS PAGE INTENTIONALLY

LEFT BLANK.

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6.5

Parts List

ACCESSORIES

ITEM

PART #

823-2939

823-2936

803-0268

210-5068

910-7540

823-2938

826-0900

826-1117

826-1118

COMPONENT

Cooking Basket

Starch Diverter

Basket Support Rack

Pan Insert

Cookpot/Rinse Tank Top Connecting Strip

Rinse Basket

Chain Restraint Kit

Caster without Brake, 5-Inch (includes mounting hardware)

Caster with Brake, 5-Inch (includes mounting hardware)

6-19

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BASKET LIFT COMPONENTS

6-20

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ITEM

PART #

823-2007

910-7420

911-7417

912-7417

900-7421

826-1363

902-1927

901-1927

809-0247

809-0508

810-0194

809-0047

809-0082

810-0045

807-0108

900-7416

809-0113

809-0050

812-0138

807-0240

809-0097

826-1358

810-0052

809-0194

809-0196

809-0063

826-1381

910-4525

809-0155

826-1370

809-0076

920-6076

810-0170

810-0192

809-0127

809-0719

900-7418

900-7419

807-0124

810-0220

COMPONENT

Arms, Basket Lift

Top, Basket Lift Enclosure

Side, Basket Lift Enclosure Right

Side, Basket Lift Enclosure Left

Support, Basket Lift Rod Bushing

Screw, 8-32 x ½-inch Slotted Truss Head (Pkg of 25)

Bracket, Left Basket Lift Roller

Bracket, Right Basket Lift Roller

Nut, 8-32 Hex Keps

Bolt, ¼ -20 x 1 ¼-inch Hex Head SS

Roller, Basket Lift

Nut, ¼-20 SS Hex Cap

Ring, ¾-inch Truarc

Bushing, Basket Lift Rod

Motor, 240VAC Basket Lift

Mount, Basket Lift Motor

Screw, 8-32 x 1 ½-inch Slotted Truss Head

Nut, 8-32 Hex

Insulation, Motor Mount (Fishpaper)

Microswitch

Screw, 6-32 x 1-inch Slotted Truss Head

Nut, 6-32 Hex (Pkg of 25)

Cam (Bellcrank), Basket Lift

Washer, 5/16-inch SAE Flat

Washer, ⅜-inch SAE Flat

Nut, Jam 3/8-16 Hex

Washer, ½-inch ID x ⅞-inch OD Nylatron Flat (Pkg of 10)

Bar (Link), Basket Lift Synchronizing

Screw, 5/16-18 x ⅝-inch Leveling

Screw, ¼-20 x 1 ¼-inch Slotted Round Head (Pkg of 10)

Nut, ¼-20 x ¾-inch Expansion

Link, Basket Lift

Pin, ¼-inch x ⅝-inch Spring Dowel

Rod, 19 ⅝-inch Basket Lift

Screw, ¼-20 x ½-inch Slotted Round Head

Screw, #10 x ½-inch 410SS

Panel, Upper Basket Lift Rear

Panel, Lower Basket Lift Rear

Bushing, Heyco

Spacer, Tubular, .493-inch OD

6-21

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CABINETRY

6-22

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ITEM

PART #

210-0815

806-5209

210-0816

900-7198

900-1552

900-7389

900-7390

900-7391

COMPONENT

Channel, Front or Rear Base

Leg Pad Assembly (on bottom of Item 1, for mounting casters)

Channel, Side Base

Post, Door

Gusset (Corner Brace)

Brace, Top Rear

Brace, Top Front

Divider, Cabinet

Side, Left or Right Cabinet

Stainless Steel

910-7377

900-7377

900-7422

826-1374

900-1750

826-1371

900-4645

210-0007

210-0215

809-0740

810-1838

809-0200

809-0063

824-0801

806-5487

823-2946

806-9744

810-1402

809-0266

810-1508

210-0817

210-0818

910-4831

809-0508

810-0374

810-0194

809-0190

809-0047

809-0127

803-0028

809-0171

826-1351

Cold Rolled Steel (Painted)

Back, Cabinet

Screw, #10 x ½-inch Hex Washer Head (large cabinet screw) (Pkg of 25)

Panel, Plumbing Access

Screw, #8 x ½-inch Hex Head (access panel screw)

Shield, Heat

Backsplash

Plate, Faucet Mounting

Screw, #10 x ½-inch Phillips Truss Head (faucet plate and topcap screw)

Rod, Basket Pivot

Washer, ½-inch Flat

Nut, ⅜-16 Jam

Topcap

Frame, Control Panel

Panel, Control

Door Assembly, Left or Right (does not include handle or hinges)

Handle, Wire Form Door

Screw, #10 x ½-inch Phillips Truss Head (door panel and handle screw)

Hinge, Universal Door

Shield, Left Moisture

Shield, Right Moisture

Bracket, Basket Lift Roller

Bolt, ¼-20 x 1 ¼-inch Hex Head

Spacer, Basket Lift Roller Tubular

Roller, Basket Lift

Washer, ¼-inch SS Flat

Nut, ¼-20 Hex Head Cap

Screw, ¼-20 x ½-inch Slotted Round Head

Hanger, Basket (for wire-form hanger use 810-2229)

Thumbscrew, Basket Hanger

Retainer, ¼-20 Nut (Nutsert) (Pkg of 10)

* Not illustrated.

6-23

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COOKPOT, RINSE TANK,

AND DRAIN COMPONENTS

6-24

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ITEM

PART #

COMPONENT

823-2937SP Cookpot Assembly (for 17EMCS (McDonald’s), use 823-3827SP)

823-1994SP Rinse Tank Assembly

806-7552SP Water Level Sensor Assembly

900-5045

816-0152

900-1762

826-1376

807-3333

210-0681

807-2466

807-3814

810-0976

N/A

809-0047

813-0451

813-0453

813-0148

813-0070

813-0400

813-0391

813-0394

813-0146

813-0518

813-0395

813-0144

813-0554

814-0047

910-9527

810-1825

823-2022

910-2042

910-5214

910-2097

809-0769

809-0204

809-0063

Retainer, Cookpot Front Insulation

Insulation, Cookpot Front (behind Item 4)

Retainer, Insulation

Nut, 10-32 Hex Head Keps (Pkg of 10)

Probe, Temperature

Guard, Temperature Probe

Thermostat, High-Limit

Element, 208V 8.625kW (for 230V, use 807-3815; for 240V, use 807-3816)

Nozzle

Guard, Water Level Sensor (part discontinued; no longer used)

Nut, ¼-20 Cap (secures Item 12 on units built before February 2001)

Nipple, 1 ¼-inch NPT x 12-inch Chromed Brass

Nut, 1 ¼-inch NPT Chromed Stainless Steel Slip

Nipple, 1 ¼-inch NPT x 6 ¼-inch NPT

Elbow, 1 ¼-inch NPT 90º

Nipple, 1 ¼-inch NPT x 2-inch

Nipple, 1 ¼-inch NPT Close (connects cookpot drain valve and Item 19)

Tee, 1 ¼-inch NPT

Nipple, 1 ¼-inch NPT x 4 ¼-inch

Nipple, 1 ¼-inch NPT x 4-inch

Union, 1 ¼-inch NPT

Nipple, 1 ¼-inch NPT x 3 ¾-inch

Nipple, 1 ¼-inch NPT x 7-inch

Sleeve, Red Drain Valve Handle

Handle, Drain Valve

Valve, 1 ¼-inch NPT Drain

Strainer

Clamp, Element

Support, Element

Bracket, High-Limit

Screw, #8 X ⅜-inch S/S Hex Washer Slot Head

Washer, Teflon (fits between Item 10 and inside face of Cookpot)

Nut, ⅜-16 Jam (secures Drain Valve Handle to Drain Valve)

* Not illustrated.

6-25

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ELECTRONICS

1C BLK

2C BLK

3C BLK

4C BLK

5C BLK

6C BLK

7C BLU

8C WHT

9C BLU

10C BLK

11C BLK

12C BLK

21C ORG

22C GRN/YLW

23C BRN

24C ORG

25C ORG

26C RED

28C BRN

30C RED

32C BRN

15C WHT

1H BLK

2H BLK

3H BLK

4H BLK

5H BLK

6H BLK

2H BLK

3H BLK

4H BLK

5H BLK

6H BLK

41C WHT

42C WHT

43C BLK

51C WHT

52C WHT

53C BLK

6-26

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ITEM

PART #

106-0385

824-0856

807-1555

807-1308

809-0328

809-0237

807-0680

807-3996

815-0554

807-0037

809-0096

807-1396

809-0102

809-0247

807-2082

COMPONENT

Computer, 17ECS

Starch Shield (mounts to back of control panel to protect computer)

Fuse, 5 Amp

Holder, Fuse

Screw, 4-40 x ¼-inch Slotted Pan Head

Nut, 4-40 Hex Head Keps

Transformer, 208-240VAC/24VAC 50/60Hz 43VA

Relay, 75 Amp 280V SPST-NO Solid State

Compound, Heatsink (GC Thorsen 10-8109)

Tab, Faston 6.35 (.250) Series

Screw, 6-32 x ⅝-inch Binding Slotted Head

Relay, 24VDC SPDT

Screw, 8-32 x ⅜-inch Slotted Truss Head

Nut, 8-32 Hex Head Keps

Switch, Non-Illuminated Rocker

802-1793A Label, ON/OFF

810-1202

807-2464

807-0070

Contactor, 3 Pole 600VAC 40 Amp

Block, Delta Power

Terminal, Ground Lug

802-0742B Label, Ground

807-2749

900-2752

900-5895

809-0359

200-0008

900-5785

900-8239

809-0117

200-0180

200-0181

826-1374

900-5445

200-0001

807-0804

807-0875

807-2135

807-2136

807-2137

807-2138

806-3660

106-0144

106-0158

106-0157

106-0156

106-0159

106-0160

Heatsink

Plate, Cordset

Top, Triac Contactor Box

Screw, #8 x ¼-inch Slotted Hex Washer Head

Box, Triac Contactor

Rear, Triac Contactor Box

Rear, Split Triac Contactor Box

Screw, 10-32 x ⅜-inch Slotted Truss Head

Brace, Contactor Box Rear

Brace, Contactor Box Front

Screw, #10 x ½-inch Hex Head

Cover, Contactor Box Front

Bracket, Connector

Connector, 15-pin Male

Connector, 15-pin Female (Panel Mount)

Connector, 6-pin High-Amp Male

Connector, 6-pin High-Amp Female

Connector, 9-pin High-Amp Male

Connector, 9-pin High-Amp Female

Sound Device, High-Output

Harness, Computer to Contactor Box 15-pin Wiring

Harness, Contactor Box Internal 15-pin Wiring

Harness, Element to Contactor 9-pin Wiring

Harness, Element to Contactor 6-pin Wiring

Harness, Basket Lift Relay 6-pin Wiring

Harness, Basket Lift to Contactor Box 6-pin Wiring

* Not illustrated.

6-27

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WATER SUPPLY SYSTEM COMPONENTS

ITEM

PART #

810-0907

910-2513

806-5565

813-0302

813-0472

900-1905

813-0022

809-0454

810-1208

900-1898

813-0449

813-0448

813-0473

813-0412

826-1132

COMPONENT

Elbow, ⅜-inch NPT Compression

Tubing, Solenoid Valve to Cookpot ⅜-inch Stainless Steel

Valve Assembly, 24VAC 60Hz Solenoid

Elbow, ⅜-inch Tube to ¼-inch NPT 90º Brass Male

Nipple, ¼-inch NPT x 2.5-inch Brass

Mount, Solenoid Valve

Nipple, ½-inch NPT x Close

Nut, ½-inch Conduit

Valve, Pressure Regulator

Tube, ⅜-inch Water Line

Tee, ¼-inch NPT Brass

Elbow, ¼-inch NPT 90º Brass

Nipple, ¼-inch NPT x 4-inch Brass

Faucet, Double Jointed Pantry

Kit, Faucet Repair (contains two valve assemblies)

* Not illustrated.

6-28

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6.6

Wiring Diagram (17ECS)

LINE

LOAD

7 9

6-29

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6.7

Wiring Diagrams (17EMCS)

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ELECTRIC COOKER MODELS 17EC, 17ECS, ESW AND EWBS

CHAPTER 7: ESW & EWBS SERVICE PROCEDURES & PARTS

7.1

Functional Description

The ESW series was the predecessor to the EWBS series. Both cookers are very similar in

construction and function. The cookers in the ESW series have rocker-switch controls only. These

cookers were configured as single units or as batteries of two units. The primary difference between

the two configurations is in the piping of the Autofill water supply system and the lack of the basket

lift and computer options on ESW units.

Cookers in the EWBS series may be configured with computer controls or with the rocker-switch

controls as used on the ESW cookers. E1WBS models consist of a single cooker. E2WBS models

consist of two single units battered together.

All models feature a 16.5-gallon (62.5-liter) stainless steel cookpot. The water in the cookpot is

heated by a 13-kilowatt heating element. Optional features include a swing-away jointed faucet and

automatic filling and skimming features (Autofill and Autoskim).

Units with Manual Controls (rocker-switches and a thermostat)

When the POWER switch is placed in the ON position, the white POWER indicator next to the

switch illuminates. If the red TROUBLE indicator illuminates at any time, there is a problem with

the high-limit thermostat. The unit will not heat until the problem with the high-limit thermostat has

been resolved. Anytime the POWER switch is in the ON position, logic circuits in the interface

board check for the presence of water in the cookpot. These circuits look for grounding of the water

level sensors caused by their contact with water in the cookpot.

If the interface board senses that the cookpot is not full, (i.e., the upper water level sensor is not in

contact with water) it signals the normally closed solenoid valve on the water supply line to open.

When the interface board senses that water level in the cookpot is full, (i.e., water contacts the upper

water-level sensor), it signals the solenoid valve to close. Anytime the water level in the cookpot

drops below the upper water-level sensor, the interface board signals the solenoid valve to open to

refill the cookpot to the proper level.

When the HEAT CYCLE switch is placed in either the BOIL or the SIMMER position, if water is in

contact with the lower water level sensor, the interface board signals the contactor coil to close,

energizing the heating element. If the switch is placed in the SIMMER position, the interface board

closes or opens the contactor coil (and thus energizes or de-energizes the element) to maintain the

water in the cookpot at the temperature set with the thermostat knob. If the switch is placed in the

BOIL mode, the element remains energized until the switch is placed in the IDLE or the SIMMER

mode. If the switch is placed in the IDLE mode, power is supplied to all components of the unit

except the heating element. The Autofill feature, the faucet switch, and the skim switch are

functional anytime the power switch is in the ON position, regardless of the position of the heat

cycle switch.

7-1

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NOTE: The cooker has a high-limit safety. If the water in the cookpot falls below the low-water-

level sensor but the sensor remains grounded for whatever reason (thereby allowing the element to

continue to heat), the high-limit switch will open when the element temperature reaches 400 ±15ºF.

This cuts off power to the element.

Units with Computer Controls

When the computer POWER switch is pressed, a logic circuit in the computer checks the water level

in the cookpot. A normally closed solenoid valve on the water supply line automatically opens if the

upper water-level sensor is not grounded by contact with water in the cookpot. Water will continue

to be added until the upper water level sensor is grounded by contact with water in the cookpot. If

there is sufficient water in the cookpot to cover the heating element (i.e., the lower water level sensor

is grounded by contact with water in the cookpot), the computer signals the contactor coil to close,

thereby energizing the heating element. If the temperature of the water in the cookpot is below the

cooking setpoint temperature programmed into the computer, -ºlo appears in the computer’s LED

display. If the temperature of the water in the cookpot is within 11ºF (6ºC) of the programmed

setpoint, “- - - -” appears in the computer’s LED display.

If the SIMMER mode is selected by pressing the R button, logic circuits in the computer monitor

the temperature of the water and cycle power to the element on and off to maintain the temperature

at the setpoint programmed into the computer. (See Chapter 3 for instructions on adjusting the

setpoint.) If the BOIL mode is selected by pressing the L button, the heating element remains

continuously energized until the SIMMER mode is again selected.

NOTE: The cooker has a high-limit safety. If the water in the cookpot falls below the low-water-

level sensor but the sensor remains grounded for whatever reason (thereby allowing the element to

continue to heat), the high-limit switch will open when the element temperature reaches 400 ±15ºF.

This cuts off power to the element.

The Autoskim feature is activated by placing the SKIM switch in the ON position. When the feature

is activated, a logic circuit in the computer automatically opens the solenoid valve in the water

supply line for three seconds every minute until the option is turned off by placing the switch in the

OFF position.

On units equipped with faucets, the faucet is turned on by placing the FAUCET switch in the ON

position. This opens a dedicated normally closed solenoid valve on the faucet water line. The

solenoid valve remains open until the switch is placed in the OFF position.

When a product button is pressed to initiate a cooking cycle, the programmed cook time appears in

the LED display and begins to count down. When the specified cook time has elapsed, an audible

alarm sounds and the associated product button flashes. Simultaneously, logic circuits in the

computer activate the appropriate basket lift motor, lowering the basket into the cookpot. As the

motor drives the basket lift arm down, a cam attached to the motor eventually loses contact with a

roller-activated microswitch and power to the motors is cut. When the computer times out, logic

circuits reverse the switch positions so that the motor circuit is again completed and the motor is

restarted, raising the basket from the cookpot. At the fully raised position, the cam again makes

contact with the microswitch, cutting power to the motor and stopping the lift in the up position.

7-2

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7.2

Accessing Equipment for Servicing

DANGER

Moving this equipment while it is filled with hot water may cause spilling or

splattering of the hot water. Always drain the cookpot before attempting to relocate

this equipment for servicing.

1. Disconnect the unit from the electrical power supply and from the water supply.

2. Remove any attached restraining devices.

3. Relocate the unit for service accessibility.

4. After servicing is complete, reconnect the unit to the water supply, reattach restraining devices,

and reconnect the unit to the electrical power supply.

7.3

Replacing Equipment Components

Replacing the Computer

7.3.1

See Section 5.3.

7.3.2

Replacing Electronic Components Other than the Computer

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Remove the cover from the component box. Refer to the illustration below to locate the

component to be replaced.

Power Block

24V Transformer (units w/Basket Lifts only)

Contactor

24V Transformer (all units)

3. On the component to be replaced, make a note of the wiring connection points.

4. Disconnect the wires and remove the failed component. Install the replacement component and

reconnect the wiring in accordance with the notes made in Step 3 or with the wiring diagram on

the door of the unit.

5. Replace the component box cover, being sure to reconnect the ground wire. Reconnect the

cooker to the electrical power supply.

7-3

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7.3.3

Replacing the Heating Element

1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

unit from the water supply at the rear of the cooker. Remove the basket lift arms from the unit.

2. Reposition the cooker to allow clear access to the rear of the unit. Remove the cabinet back (on

units with basket lifts, remove all three back panels).

3. Unplug the 6-pin element connector from the rear of the

contactor box. Depress the locking tabs on each side of the

connector and extend it to release the element leads (see

photo at right). Pull each of the leads out of the connector,

being careful not to damage the connector in the process.

4. If the bundle of element leads is enclosed in a fiberglass

insulating sheath, cut the wire ties securing the sheath in

place, and remove and discard it; it is no longer required.

Inside the cookpot, cut the metal wire ties that secure the

high-limit thermostat to the element, being careful not to

bend the thermostat in the process.

5. Remove the brass nuts that secure the element in the cookpot and lift the failed element from the

cookpot. Recover the Teflon washers from the failed element for use on the replacement.

Remove these nuts to dismount

element from cookpot.

Standoffs

6. Position the replacement element in the cookpot with the standoffs on the bottom of the cookpot.

Thread the element leads through the Teflon washers recovered from the failed element. Secure

the element in place with the nuts removed in Step 5.

7. Secure the high-limit thermostat against the inside of the leg of the element with two metal wire

ties.

8. Insert the pins on the element leads into the element connector in accordance with the illustration

on the following page. Each element lead is marked with a number that corresponds to the hole

in the connector into which it should be inserted. The insulation on the lead will be flush with

the face of the plug when properly positioned. When all leads are positioned correctly, close the

connector and verify that the tabs are locked in place.

7-4

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Hole 6

Lead 1

Note D-shaped pin and

"pip" identifying Hole 1.

9. Bundle all six element leads together and secure with plastic wire ties close to the element and

connector, and in the middle.

10. Plug the connector into the contactor box. Reverse Steps 1 and 2 to complete the procedure.

7.3.4

Replacing the High-Limit Thermostat

1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

unit from the water supply at the rear of the cooker. If the unit is equipped with basket lifts,

remove the basket lift arms. Cut the metal wire ties securing the thermostat tube to the element.

2. Reposition the cooker to allow clear access to the rear of the unit. Remove the cabinet back (on

units with basket lifts, remove all three back panels).

3. At the rear of the cookpot, loosen the small compression nut, then unscrew the large fitting from

the cookpot. Pull the thermostat tube out through the rear of the cookpot.

Loosen the small

compression nut first.

Unscrew the large fitting

only after loosening the

small compression nut.

4. Detach the high-limit thermostat leads (5C and 8C) from the thermostat. Remove the two screws

securing the thermostat to the mounting bracket and remove the thermostat assembly from the

cabinet. (NOTE: It is not necessary to remove the bracket.)

5. Loosen the small compression nut in the large fitting on the replacement thermostat so that the

large fitting will move freely on the capillary tube (the thin, flexible tube). Carefully insert the

replacement thermostat into the cookpot, being careful not to bend the thermostat tube. Position

the tube along the inside of the left leg of the element (as viewed from the front of the cooker)

and secure it in place with two metal wire ties. Apply thread sealer to the large fitting and screw

the fitting securely into the cookpot. When the large fitting is tight, pull gently on the capillary

tube to remove any slack, then screw the small compression nut into the large fitting and tighten.

7-5

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6. Coil the capillary tube as necessary to achieve a neat installation and attach the terminal block to

the mounting bracket using the screws removed in Step 4. Connect thermostat lead 5C (black) to

the normally closed (NC) terminal and 8C (white) to the common (C) terminal.

Common (C) Terminal

(Note open side.)

Normally Closed (NC) Terminal

(Note closed side.)

7. Reverse Steps 1 and 2 to complete the procedure.

7.3.5 Replacing a Water-Level Sensor

Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the

sensor lead from the sensor, remove the nuts securing the sensor in place, and remove the sensor.

Install the replacement sensor as illustrated below and reconnect the lead.

Insulator must seat in

hole before nut is

tightened.

Inside of cookpot.

7.3.6

Replacing the Operating Thermostat or Temperature Probe

Units with Manual (Thermostat) Controls

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Disconnect the rocker-switch wires from the terminals of the thermostat body.

3. Loosen the Allen screw in the thermostat control knob and slip the knob off the thermostat shaft.

Remove the two screws securing the thermostat body to the mounting bracket and remove the

thermostat body from the mounting bracket.

4. At the cookpot, loosen the small nut in the center of the temperature probe fitting, then unscrew

the fitting from the cookpot. Inside the cookpot, remove the probe cover, push the probe out of

its retaining bracket, and withdraw the probe from the cookpot.

5. Verify that the small nut in the center of the replacement temperature probe fitting is loose and

that the fitting spins easily around the capillary tube. Pass the thermostat bulb through the hole

in the cookpot and position it under the lower portion of the retaining bracket.

7-6

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6. Carefully work any slack in the capillary tube back out of the hole in the cookpot. Apply thread

sealer to the threads of the replacement temperature probe fitting and screw the fitting into the

cookpot. When the fitting is tight, verify that all slack in the capillary has been worked back

out of the cookpot and that the bulb is correctly positioned under the lower portion of the

retaining bracket. Then, and only then, tighten the small nut in the center of the fitting. NOTE:

Tightening the small nut crimps the internal compression fitting onto the capillary and

prevents any further movement of the capillary through the large fitting.

Tighten the small

compression nut last.

Tighten the large fitting

before tightening the

small compression nut.

7. Position the thermostat body in the mounting bracket with the terminals to the left and reinstall

the two screws removed in Step 3. Reinstall the thermostat knob.

8. Reconnect rocker-switch wires 20C and 35C to the lower terminal of the thermostat body;

reconnect wire 15C to the top terminal. Reinstall the probe cover to complete the procedure.

Attach wire15C here.

Attach wires 20C and 35C here.

Units with Computer Controls

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Remove the screws from the upper corners of the control panel and open the panel by allowing it

to swing downward.

3. Disconnect the 12-pin connector from the interface board and, using a pin pusher, push out the

temperature probe leads from holes 6 and 8 on the connector.

4. Remove the temperature probe by unscrewing it from the front of the cookpot.

5. Apply thread sealer to the replacement probe and screw it securely into the cookpot.

6. Insert the probe leads into holes 6 and 8 of the 12-pin connector (there is no polarity; either lead

may be inserted into either hole [see illustration at top of next page]). Pull gently on each lead to

ensure it is firmly seated.

7-7

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Hole 8

Note D-shaped pin and

rib identifying Hole 1.

Hole 6

7. Reattach the 12-pin connector to the interface board, close the control panel, and replace the two

screws removed in Step 2.

7.3.7

Replacing the Pressure Regulator or Solenoid Valve

1. Drain the cookpot and disconnect the cooker from the electrical power supply. If necessary,

reposition the cooker to allow free access to the component to be replaced. Turn off or

disconnect the water supply to the cooker. If replacing an Autofill system pressure regulator or

solenoid valve on a unit equipped with basket lifts, the basket lift upper rear panel must be

removed.

2. Loosen the compression fittings on the water lines running to and from the regulator or solenoid

valve and remove the component from the unit. (NOTE: If the solenoid valve is mounted

adjacent to the regulator, disconnect the solenoid leads and remove both the regulator and

solenoid valve from the unit.)

TYPICAL WATER SUPPLY SYSTEM CONFIGURATIONS

Double Unit without

Basket Lifts

Single Unit without

Basket Lifts

Single Unit with

Basket Lifts

3. If replacing a regulator, adjust the replacement regulator output pressure to not more than 40 PSI

(28.15 kg/cm²) before installation in the cooker.

4. Recover the fittings from the failed component (regulator or solenoid valve) and install them on

the replacement, using thread sealer on all connections.

5. Reverse Steps 1 and 2 to complete the procedure, being sure to apply thread sealer to all

connections.

7-8

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7.3.8

Replacing the Water Faucet

1. Drain the cookpot and disconnect the cooker from the electrical power supply.

2. Turn off the water supply to the cooker and disconnect the incoming faucet water line where it

attaches to the pipe nipple at the pressure regulator. Reposition the cooker to gain clear access to

the rear of the cooker.

3. Remove the cabinet back (or, if the unit is equipped with basket lifts, remove the upper rear

panel).

4. Disconnect the water supply line at the compression fitting where it attaches to the faucet

assembly. Remove the large nut to dismount the faucet assembly from the cabinet.

Remove this nut to dismount

faucet assembly from cabinet.

Loosen this nut to separate

water line from faucet assembly.

5. Reverse Steps 1-4 to complete the procedure.

7.3.9

Replacing a Basket Lift Motor or Microswitch

1. Disconnect the cooker from the electrical power supply, disconnect the cooker from the

incoming water supply, and remove the basket lift arms from the lifter rods.

2. Remove the screws from the upper corners of the control panel and open the panel by allowing it

to swing downward. Unplug the basket lift wiring harness from the 5-pin connector on the

interface board.

3. Reposition the cooker to gain access to the rear. Remove all three panels from the rear of the

basket lift housing, and disconnect the lifter rods from the lifter cams (bell cranks). Slip the lifter

rods down and out of the assembly.

Lifter Rod

Remove the leveling screw, bushing,

and washer, then slip the lifter rod down

and out of the assembly.

7-9

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4. Remove the four bolts securing the motor mount to the frame, then remove the motor and mount

assembly from the unit. NOTE: It is possible to replace a motor or the microswitch without

removing the motor and mount assembly, but it is much more difficult.

5. Dismount the motor or microswitch as shown below and install the replacement.

NOTE: The right motor and microswitch

dismount in the same way as the left.

Loosen setscrew in bottom

of cam (bell crank).

6. Reverse Steps 1-4 to complete the procedure.

7.3.10 Replacing the Cookpot

1. Drain the cookpot and disconnect the unit from the electrical power supply.

2. If so equipped, remove the faucet assembly from the cooker in accordance with Steps 1-4 of

Section 7.3.8.

3. Remove the screws from the upper corners of the control panel and open the panel by swinging it

downward.

On units with manual (thermostat) controls:

a. Disconnect the water level sensor leads at the cookpot terminals. Disconnect all wiring from

the control panel switches and light, and then remove the control panel from the unit.

b. Unplug the 4- and 6-pin connectors from the interface board. Disconnect all wiring from the

terminal block mounted next to the interface board.

c. Remove the interface board bracket from the unit.

d. Remove the temperature probe from the cookpot in accordance with Steps 4 through 6 of

Section 7.3.6 (Units with Manual (Thermostat) Controls).

e. Remove the thermostat mounting bracket with thermostat attached.

On units with computer controls:

a. Disconnect the water level sensor leads at the cookpot terminals. Disconnect all wiring to the

Skim switch (and to the Faucet switch, if present). Unplug the 15-pin connector from the

rear of the computer, and then remove the control panel from the unit.

7-10

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b. Unplug the 5- and 12-pin connectors from the interface board. Do not disconnect the water

level sensor leads from the interface board.

c. Remove the interface board bracket from the unit.

d. Using a pin pusher, push out the temperature probe leads from holes 6 and 8 on the 12-pin

connector.

4. Disconnect the Autofill water supply piping at the cookpot compression fitting.

5. Remove the screws that secure the topcap to the cabinet and remove the topcap from the unit.

On double units, remove the cookpot connecting strip.

6. Remove the screws attaching the standoff brackets to the cookpot.

Remove these screws

7. Unplug the element wiring harnesses from the rear of the contactor box. Disconnect the high-

limit thermostat leads from the thermostat body. Remove the screws securing the backsplash to

the cabinet and remove the backsplash.

8. With an assistant, lift the cookpot straight up and out of the cabinet. DO NOT ATTEMPT TO

REMOVE THE COOKPOT WITHOUT ASSISTANCE!

9. Invert the cookpot on a suitable work surface and remove the salvageable components (e.g.,

insulation, element, thermostats, drain plumbing, etc.). Install the recovered components on the

replacement cookpot or rinse tank, using thread sealer on all connections.

10. Reverse Steps 1 through 8 to complete the procedure, referring to the wiring diagram on the door

of the unit or at the end of this chapter when reconnecting wiring.

7-11

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7.4

Troubleshooting

Problems with this equipment may be grouped into five broad categories:

1. Failure or malfunction of a 24VAC Power-Supply System component.

2. Failure or malfunction of a Control System component.

3. Failure or malfunction of an Autofill/Autoskim System component.

4. Failure or malfunction of a Water Heating System component.

5. Failure or malfunction of a Basket Lift System component (on units so equipped).

Sections 7.4.1 through 7.4.5 briefly explain the functioning of each of the systems mentioned above.

Section 7.4.6 contains troubleshooting guides that provide systematic procedures to isolate and

identify the specific source of a problem. Wiring diagrams are located at the end of the chapter.

7.4.1 How the Power-Supply System Works

Line voltage is supplied to the system via a power cord that is plugged or hard-wired into the store’s

electrical service. The power cord is attached to a three-lug power terminal block. One set of three

wires delivers line voltage from the load side of the block to the line side of the contactor. A second

set of two wires delivers line voltage to the 24VAC transformer. Line voltage for the heating

element is delivered from the load side of the contactor through the 6-pin connector on the rear of

the contactor box. 24VAC for the remaining components is distributed to and from the contactor

box via the 15-pin connector on the front of the box.

On units with basket lifts, a separate set of two wires delivers line voltage from the terminal block to

the basket lift 24VAC transformer. From the transformer, the 24VAC is delivered to the interface

board via the 12-pin connector on the interface board. Line voltage for one side of the basket-lift-

motor circuits is delivered directly to the motors from the terminal block via the 15-pin connector on

the front of the contactor box. Line voltage for the other side of the basket-lift-motor circuits is

supplied via the basket lift relays mounted on the interface board through the 5-pin connector on the

interface board. All line and 24VAC power except the line voltage for the elements is distributed to

and from the contactor box via the 15-pin connector on the front of the box.

7.4.2 How the Computer Works

The CM III computer provides the interface between the operator and the system components.

24VAC from the transformer is supplied through Pin 7 of the 9-pin connector on the interface board.

The 24VAC is rectified to 12VDC and delivered to the computer via Pins 1 and 3 of the 15-pin

connector. Internal circuitry senses the water temperature. Depending upon the conditions sensed,

the computer energizes or de-energizes the heating element (via the contactor coil) to control water

temperature. The computer also controls the lowering and raising of the basket lifts, and activates an

audible alarm to signal the operator that a cooking cycle has completed. The computer signals for

heat via Pin 4 of the 15-pin connector. The temperature probe connects to Pins 13 and 14 of the 15-

pin connector. The basket lift relays connect to Pins 7 (right) and 9 (left), and the sound device

connects to Pin 11 of the 15-pin connector.

7-12

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7.4.3 How the Autofill and Skim Systems Work

The heart of the automatic filling (Autofill) system is a normally closed solenoid valve that opens

when 24VAC is applied as a result of the loss of upper water-level sensor ground. The ground is lost

when the sensor is not in contact with water in the cookpot. Starch or lime build-up on the sensor

may keep a ground from forming. Therefore always make sure the sensor is clean and its lead is

firmly connected to Pin 1 of the 6-pin connector on the interface board (units with manual controls)

or connector J5 on the interface board (units with computer controls). Also, in order for the ground

to form, there must be some mineral content in the water (pure water is non-conductive).

Consequently, the units will not operate with distilled water. If distilled, highly filtered, or purified

water is used, add ⅛-cup of baking soda to the water each time the cookpot is emptied and refilled.

In units with manual controls, the 24VAC is supplied via Pins 1 and 2 of the 4-pin connector on

the interface board so long as the upper water-level sensor is not in contact with the water in the

cookpot. In units with computer controls, 24VAC is continuously supplied to one leg of the

circuit via Pin 6 of the 15-pin connector on the front of the contactor box. The other leg is supplied

via Pin 2 of the 12-pin connector on the interface board so long as the upper water-level sensor is not

in contact with water in the cookpot. In either case, when the water in the cookpot reaches the upper

water-level sensor, the sensor is grounded. This causes logic circuits in the interface board to cut the

24VAC to the solenoid, closing the valve.

If the SKIM switch is placed in the ON position, the logic circuits in the interface board are

bypassed and 24VAC is applied to the solenoid valve for as long as the switch is left in the ON

position.

7.4.4 How the Water Heating System Works

To prevent energizing the heating elements when there is no water in the cookpot, these units are

equipped with a low-water-level sensor. This sensor must be grounded by contact with water in the

cookpot before the control circuitry will apply power to the elements. Starch or lime build-up on the

low-water-level sensor may keep the ground from forming, therefore always make sure the sensor is

clean and its lead is firmly connected to J5 on the interface board. In order for the ground to form,

there must be some mineral content in the water (pure water is non-conductive). Consequently, the

units will not operate with distilled water. If distilled, highly filtered, or purified water is used, add

⅛-cup of baking soda to the water each time the cookpot is emptied and refilled.

In addition to the low-water-level sensor discussed above, the water heating system has six more

parts: the high-limit thermostat, the temperature probe, the contactor, the element, and a HEAT

CYCLE switch and manual thermostat, or a computer.

The high-limit thermostat functions as a normally closed switch. If the water in the cookpot falls

below the low-water-level sensor but the sensor remains grounded (for whatever reason), the high-

limit switch will open when the element temperature reaches 400ºF ±15 (204ºC ± 9). This cuts

power to the contactor coil and thus to the element.

The temperature probe is used only when the unit is in the simmer mode. When the operator

selects the simmer mode, logic circuits in the on the interface board or in the computer monitor the

temperature of the water and cycle power to the element (via the contactor coil) on and off as

7-13

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required to maintain the temperature at the setpoint programmed into the computer or set on the

thermostat knob.

The contactor is the terminal block to which the element leads are connected and where actual

contact is made between the leads and the line voltage. Built into the contactor is a 24VAC coil that

energizes when signaled by the computer or interface board that the water temperature is below the

setpoint. When it energizes, contact is made between the incoming line voltage and the element

leads, and line voltage is supplied to the element.

The element is a resistive heating device. That is, when voltage is applied to the element, it gets

very hot due to its resistance to current flow through it. The heat generated is transferred directly to

the water in which the element is immersed.

In units with manual controls, the three-position HEAT CYCLE switch controls how power is

supplied to the element. When the switch is in the:

•

IDLE position, no power is supplied to the element at any time.

BOIL position, power is supplied to the element continuously until the switch is placed in

another position.

•

SIMMER position, power to the element cycles on if the water temperature is below the

temperature indicated by the thermostat knob. When the temperature reaches that indicated

by the thermostat knob, power to the element cycles off. This process continues until the

switch is placed in another position.

In units equipped with a computer, the computer is the interface between the operator and the other

components of the equipment. It controls the application of line voltage to the heating element via

the contactor. There are two modes of operation:

Simmer Mode, the signal from the computer is continuos and line voltage is applied to the

elements until the simmer setpoint programmed into the computer is reached, at which time the

signal ceases.

Boil Mode, the signal from the computer is continuous ceasing only when the unit is turned off

or placed in the simmer mode.

7.4.5 How the Basket Lift System Works

When a product button is pressed to start the cooking cycle, logic circuits in the computer activate

the appropriate basket lift motor, lowering the basket into the cookpot. As the motor drives the

basket lift rod down, a cam attached to the motor eventually loses contact with a roller-activated

microswitch and power to the motor is cut. When the computer times out, logic circuits reverse the

switch positions so that the motor circuit is again completed and the motor is restarted, raising the

basket from the cookpot. At the fully raised position, the cam again makes contact with the

microswitch, cutting power to the motor and stopping the lift in the up position.

7-14

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7.4.6 Technician Troubleshooting Guides

TROUBLESHOOTING THE 24VAC POWER SUPPLY SYSTEM

Verify that the power cord is

properly connected to the

electrical service and that

the circuit breaker is not

tripped.

The primary indicator of a

problem with the 24VAC

Power Supply System is a

failure of the power light to

i l l u m i n a t e w h e n t h e

POWER switch is placed

in the ON position or the

failure of the computer to

a c t i v a t e w h e n t h e

computer ON/OFF switch

is pressed.

On units with manual

controls, place the

POWER switch in the

ON position.

On units with computer

controls, place the

ON/OFF switch in the

ON position.

Was there an

audible snap from the

contactor indicating the

coil energized?

24VAC Power Supply

Yes

System is OK.

Is 24VAC present

across Pins 4, 5, and 6

of the 15-pin connector

on the front of the

Causes are broken or loose wiring

or a failed contactor. If wiring and

connections are verified to be intact,

replace contactor.

Yes

contactor box?

In units with manual controls, verify the

continuity of the POWER switch in the ON

position. Replace switch as required.

If the switch is OK, causes are broken

or loose wiring. Check connections and

replace wiring as required.

Is line voltage

present on the line side of

the transformer?

Is 24VAC

present on the load side of

the transformer?

Yes

Transformer has

failed. Replace.

Cause is loose or broken wiring,

or the electrical service circuit is

dead.

7-15

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TROUBLESHOOTING THE AUTOFILL SYSTEM

Verify that unit is connected to the

water supply and that water supply

is turned on.

Drain the water in the cookpot to a

level below the upper water-level

sensor.

Place the POWER switch in the

ON position.

In units with computers, press the

computer ON/OFF switch.

Remove the water-

level sensor guard

and thoroughly clean

the sensors.

Did unit

begin to fill?

Is 24VAC present on

Pins 1 and 2 of the IFB

4-pin connector (manual controls)

Check sensor and wiring.

If they are NOT grounded,

the IFB has failed. Replace.

Did unit

begin to fill?

Pin 2 of the IFB 12-pin

connector (computer

controls)?

If they ARE grounded, repair

or replace as required.

Yes

Check connections and wiring

to solenoid valve. If wiring and

connections are intact, the valve

has failed. Replace.

Check sensor and wiring.

If they ARE grounded,

the IFB has failed. Replace.

Is 0 voltage present

on Pins 1 and 2 of the IFB

4-pin connector (manual controls)

Did unit

shut off when water

reached the upper water-level

sensor?

If they are NOT grounded,

clean, repair or replace as

required.

Pin 2 of the IFB 12-pin

connector (computer

controls)?

Yes

Solenoid valve has

failed. Replace.

Autofill system is OK.

7-16

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TROUBLESHOOTING THE WATER HEATING SYSTEM

Each of the following checks is to be performed with the unit connected to the

electrical power supply, with the unit ON and calling for heat, and with at least

enough water in the cookpot to cover the lower water-level sensor.

CHECKING

THE TEMPERATURE

PROBE

(on units with computers

because water boils in

Simmer Mode or water is

too cool in Simmer Mode.)

CHECKING THE

HIGH-LIMIT

THERMOSTAT

Is resistance

between outside

terminals

Check probe resistance between Pins 6

and 8 on IFB 12-pin connector.

Resistance should be:

High-limit has

failed. Replace.

1 ohm or less?

Approx 552 ohms @ 60ºF (16ºC)

Approx 655 ohms @ 100ºF (38ºC)

Approx 1000 ohms @ 212ºF (100ºC)

Check resistance between each pin and

ground. Resistance on BOTH should be

2 mega-Ohms or greater.

Yes

High-limit is OK.

Are BOTH readings

within specification?

Probe is open or is

shorted. Replace.

CHECKING THE

ELEMENT

(24VAC Power Supply

verified to be OK..)

Yes

Probe is OK.

With sufficient water in the cookpot to cover the

heating element, place the POWER switch in

the ON position and the CYCLE switch in the

SIMMER position, OR press the computer ON/

OFF switch to the ON position.

Is 24VAC

present on the

CYCLE switch

on Pin 4 of the 15-pin

connector on

the IFB.

Was there an

audible snap indicating the

contactor coil

energized?

CHECKING

THE THERMOSTAT

(on units with manual

controls.)

Probable causes, in

order of probabilty, are

failed computer or IFB.

Yes

Set thermostat knob to OFF position.

Check resistance across terminals.

Resistance should be infinite.

Probable causes,

in order of probabilty,

are failed switch or

contactor.

Ohm out elements (Pins 1 & 6,

2 & 5, 3 & 4). If resistance

is NOT 15 ±3 Ohms, the element

has failed. Replace.

Set thermostat to its highest setting.

Check resistance across terminals.

Resistance should be less than 1 ohm.

Thermostat is open or

is shorted. Replace.

Are BOTH

readings correct?

Yes

Thermostat

is OK.

7-17

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TROUBLESHOOTING THE BASKET LIFT SYSTEM

If the basket lift motors are activating, but the basket lift fails to raise

or lower, or if its movement is erratic, the probable cause is

jamming or binding of the basket lift rods. Apply a light-weight white

grease (such as Lubriplate^TM) to the rods. If this does not correct

the problem, check for bent or otherwise damaged rods and links,

and for loose bellcranks.

TROUBLESHOOTING

THE BASKET LIFT

With the basket lift

in the UP position, is 27-33VDC

present at Pin 7 or 9 of IFB 15-pin

connector (0 volts if in DOWN

position)?

Computer has failed.

Replace.

Yes

With the basket lift

in the UP position, is line voltage

present at the NC (lower) terminal of

the microswitch (middle terminal if in

DOWN position)?

IFB has failed.

Replace.

Yes

With the basket lift in the same

position as for the previous check, is

line voltage present at the Common

terminal of the switch?

Switch has failed.

Replace.

Yes

Motor has failed.

Replace.

7-18

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7.5

Parts List

ACCESSORIES

ITEM

PART #

823-1910

806-7569

910-2545

824-0587

COMPONENT

Basket, Bulk Cooking, Full Size (cannot be used with basket lifts)

Cover

Strainer Board

Cookpot Top Connecting Strip (used on double units only)

Cup, Single Portion

803-0018

803-0260

823-2754

910-2766

810-1008

810-1463

803-0155

803-0234

803-0233

826-1117

826-1118

826-0900

803-0259

803-0218

Beige

White

Basket, Bulk Cooking, Half Size (for use with basket lifts)

Pan Insert

Hose, Water Supply, with Quick Disconnect Fittings (Swirl)

Hose, Water Supply, with Quick Disconnect Fittings

Basket, Sauce Packet

Brush, Probe Cleaning

Rack, Basket Support

Caster without Brake, 5-Inch (includes mounting hardware)

Caster with Brake, 5-Inch (includes mounting hardware)

Chain Restraint Kit

Rack, 4 Portion Cups (for use with basket lifts)

Rack, 9 Portion Cups (cannot be used with basket lifts)

* Not illustrated.

7-19

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BASKET LIFT COMPONENTS

7-20

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ITEM

PART #

823-2753

823-2752

910-7420

911-7417

912-7417

900-7421

826-1363

902-1927

901-1927

809-0247

809-0508

810-0194

809-0047

809-0082

810-0045

807-0108

900-7416

809-0113

809-0050

826-1358

812-0138

807-0240

809-0097

810-0052

809-0194

809-0196

809-0063

810-0220

809-0203

809-0155

826-1370

809-0076

920-6076

810-0170

810-0192

807-0124

809-0127

809-0719

900-8063

900-7995

900-7419

COMPONENT

Arm, Right Basket Lift (as viewed from front of unit)

Arm, Left Basket Lift (as viewed from front of unit)

Top, Basket Lift Enclosure

Side, Basket Lift Enclosure Right

Side, Basket Lift Enclosure Left

Support, Basket Lift Rod Bushing

Screw, 8-32 x ½-inch Slotted Truss Head (Pkg of 25)

Bracket, Left Basket Lift Roller

Bracket, Right Basket Lift Roller

Nut, 8-32 Hex Keps

Bolt, ¼ -20 x 1 ¼-inch Hex Head SS

Roller, Basket Lift

Nut, ¼-20 SS Hex Cap

Ring, ¾-inch Truarc

Bushing, Basket Lift Rod

Motor, 240VAC Basket Lift

Mount, Basket Lift Motor

Screw, 8-32 x 1 ½-inch Slotted Truss Head

Nut, 8-32 Hex

Nut, 6-32 Hex (Pkg of 25)

Insulation, Motor Mount (Fishpaper)

Microswitch

Screw, 6-32 x 1-inch Slotted Truss Head

Cam (Bellcrank), Basket Lift

Washer, 5/16-inch SAE Flat

Washer, ⅜-inch SAE Flat

Nut, Jam 3/8-16 Hex

Spacer, Tubular, .493-inch OD

Washer, ½-inch ID x ⅞-inch OD Nylatron Flat (Pkg of 10)

Screw, 5/16-18 x ⅝-inch Leveling

Screw, ¼-20 x 1 ¼-inch Slotted Round Head (Pkg of 10)

Nut, ¼-20 x ¾-inch Expansion

Link, Basket Lift

Pin, ¼-inch x ⅝-inch Spring Dowel

Rod, 19 ⅝-inch Basket Lift

Bushing, Heyco

Screw, ¼-20 x ½-inch Slotted Round Head

Screw, #10 x ½-inch 410SS

Panel, Upper Basket Lift Rear

Panel, Middle Basket Lift Rear

Panel, Lower Basket Lift Rear

7-21

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CABINETRY

7-22

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ITEM

PART #

COMPONENT

Side, Left or Right Cabinet

Stainless Steel

910-7377

900-7377

910-2914

900-5023

824-0633

810-0044

823-2105

910-8355

910-8060

910-8058

900-1759

900-4654

900-1552

806-5260

910-7541

823-2351

900-2762

809-0266

810-1402

806-3853

806-4487

810-1508

826-1343

810-1105

806-5209

900-7528

900-4655

826-1374

900-8273

816-0091

900-4645

910-5137

910-3122

910-0404

910-4831

809-0127

809-0508

810-0374

810-0194

809-0190

809-0047

810-2229

809-0171

826-1351

Cold Rolled Steel (Painted)

Side, Double Unit Inner Cabinet

Back, Cabinet

Backsplash (units without basket lifts)

Plug, ⅞-inch (used on units without basket lifts or faucets)

Backsplash (used on units with basket lifts)

Cover, Backsplash Top (used on basket lift units without faucet)

Cover, Backsplash Top (used on basket lift units with faucet)

Restrictor, Faucet Rotation (used on basket lift units with faucet)

Bracket, Pot Hold Down

Brace, Top

Gusset (Corner Brace)

Frame, Control Panel

Topcap

Topcap, Plate-Width (used on double units only)

Support, Plate-Width Topcap

Screw, #10 x ½-inch Phillips Truss Head (door panel and handle screw)

Handle, Wire Form Door

Door Assembly, Left or Right (does not include handle or hinges)

Door Pin Assembly

Hinge, Universal Door

Spring, Door Hinge (Pkg of 10)

Magnet, Door

Leg Pad Assembly

Channel, Left or Right Side Base

Channel, Front or Rear Base

Screw, #10 x ½-inch Washer Hex Head (Pkg of 25)

Moisture Shield

Grommet, 1¼-inch Drain

Shield, Heat

Plate, Battering (4.7-inch x 1.2-inch with 4 holes)

Plate, Battering (10-inch x 1.2-inch with 6 holes)

Plate, Battering (2-inch x 2-inch with 4 holes)

Bracket, Basket Lift Roller

Screw, ¼-20 x ½-inch Slotted Round Head (for mounting Item 33)

Bolt, ¼-20 x 1 ¼-inch Hex Head

Spacer, Basket Lift Roller Tubular

Roller, Basket Lift

Washer, ¼-inch SS Flat

Nut, ¼-20 Hex Head Cap

Hanger, Basket (replaced extruded aluminum hanger 803-0028, which is no longer available.)

Thumbscrew, Basket Hanger

Retainer, ¼-20 Nut (Nutsert) (Pkg of 10)

* Not illustrated.

7-23

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CONTROL COMPONENTS

ITEM

PART #

809-0250

806-9100

823-2760

823-2770

910-2454

807-0495

807-2479

807-2082

807-2273

806-9413

809-0238

809-0360

810-1164

809-0354

COMPONENT

Nut, 6-32 Hex Head Keps

Computer, CM III (for use on EWBS units only)

Panel, Computer Control with Two Cutouts

Panel, Computer Control with One Cutout

Panel, Manual (Thermostat) Control

Light, Red and White Split, 24V

Switch, ON-OFF-ON Rocker (Non-Illuminating)

Switch, ON-OFF Rocker (Non-Illuminating)

Bracket, Interface Board Mounting

Nut, 4-40 Hex Head

Screw, #8 x ⅜-inch Washer Slotted Hex Head

Block, Screwless Terminal

Screw, 4-40 x ¾-inch Slotted Pan Head

Interface Board

806-6505

806-9295

809-0250

807-2272

900-5026

810-0387

For use on units with manual (thermostat) controls.

For use on units with computer.

Nut, 6-32 Hex Head Keps

Thermostat, Operating

Bracket, Thermostat Mounting

Knob, Control

802-1432C Label, Thermostat Dial (adhesive-backed)

806-4206

Probe, Temperature (for use on units with computers)

* Not illustrated.

7-24

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COOKPOT AND DRAIN COMPONENTS

ITEM

PART #

COMPONENT

Cookpot

823-2392SP

823-2757SP

816-0152

900-5405

900-1762

826-1376

Units with Manual Controls

Units with Computers

Insulation, Cookpot Front

Retainer, Cookpot Front Insulation

Retainer, Insulation

Nut, 10-32 Hex Head Keps (Pkg of 10)

806-7552SP Water-Level Sensor Assembly

Temperature Sensor

807-2272

806-4206

807-2466

809-0047

910-2927

810-0976

910-1038

810-0738

807-2440

809-0567

813-0391

813-0451

813-0453

813-0146

813-0070

813-0394

810-1825

814-0047

910-9527

809-0063

809-0204

Operating Thermostat (units with manual controls)

Temperature Probe (units with computers)

High-Limit Thermostat

Nut, ¼-20 Cap

Cover, Water-Level Sensor

Nozzle

Thermostat Guard (units with manual controls)

Probe Guard (units with computers)

Element, 208V 13kW Heating

Tie Wrap, Metal

Nipple, 1¼-inch NPT Close

Nipple, 1¼-inch NPT x 12-inch Chromed Brass

Nut, 1¼-inch NPT Chromed Stainless Steel Slip

Nipple, 1¼-inch NPT x 4¼-inch

Elbow, 1¼-inch NPT 90º

Tee, 1¼-inch NPT

Valve 1¼-inch NPT Drain

Sleeve, Red Drain Valve Handle

Handle, Drain Valve

Nut, ⅜-16 Jam

Washer, Teflon (between element and inside face of cookpot)

7-25

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ELECTRONICS

42C

59C

58C

43C

27C

16C

54C

55C

41C

23C

25C

44C

25C

44C

40C

39C

14C

28C

34C

22C

34C

72C

38C

42C

21C

41C

44C

40C

39C

20C

30C

72C

11C

12C

10C

18C

19C

7-26

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ITEM

PART #

807-0680

809-0112

809-0247

807-0979

809-0104

809-0050

810-1202

807-2465

807-0070

807-2136

807-0875

900-5000

900-5001

900-5027

900-5028

900-0289

809-0360

809-0434

900-5150

807-0804

807-0160

807-0159

807-2137

807-2138

807-2135

807-0184

807-3075

807-2078

806-9299

806-9095

806-9309

806-8808

806-9308

106-0156

806-8807

806-9096

806-9305

806-9097

COMPONENT

Transformer, 208-240VAC/24VAC, 50/60Hz, 43VA

Screw, 8-32 x 1¼-inch, Slotted Truss Head

Nut, 8-32 Hex Keps

Transformer, 208-240VAC/12VAC, 50/60Hz, 20VA (for Basket Lift)

Screw, 8-32 x ½-inch Slotted Hex Washer Head

Nut, 8-32 Hex

Contactor, 3-pole, 600V, 40 Amp

Power Block

Terminal, Ground Lug

Connector, 6-pin High Amp Female (2 x 3)

Connector, 15-pin Female (3 x 5)

Back, Contactor Box

Contactor Box

Brace, Contactor Box Front

Brace, Contactor Box Rear

Bracket, Contactor Box (used with Moisture Shield [Item 27, Page 22])

Screw, 8-32 x ⅜-inch Slotted Hex Washer Head Drill Point

Screw, 8-32 x ⅜-inch Hex Washer Head Machine

Cover, Contactor Box

Connector, 15-pin Male (3 x 5)

Connector, 12-pin Male (3 x 4)

Connector, 12-pin Female (3 x 4)

Connector, 9-pin Male (3 x 3)

Connector, 9-pin Female (3 x 3)

Connector, 6-pin High Amp Male (2 x 3)

Connector, 6-pin Male (1 x 6)

Connector, 5-pin Male (1 x 5)

Connector, 4-pin Male (1 x 4)

Harness, Contactor Box Internal (15-pin female connector with 10 leads)

Harness, Contactor Box External (15-pin male connector with 6 leads)

Harness, EWBS Computer (15-pin male connector with 7 leads)

Harness, Contactor Box Internal (15-pin female connector with 6 leads)

Harness, EWBS IFB to Components (12-pin male connector with 3 leads)

Harness, Element to Contactor (6-pin female connector with 6 leads)

Harness, Element to Contactor (9-pin female connector with 6 leads)

Harness, ESW Interface Board (6-pin male connector with 6 leads)

Harness, EWBS Basket Lift (5-pin male connector with 4 leads)

Harness, ESW/EWBS w/o Basket Lift (4-pin male connector with 4 leads)

* Not illustrated.

7-27

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WATER SUPPLY COMPONENTS

7-28

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ITEM

PART #

810-1208

806-7551

813-0513

910-2513

812-1292

812-1293

910-5149

910-8011

910-8012

813-0507

810-0907

900-2915

900-2917

900-7991

900-2916

900-1905

809-0454

813-0472

813-0471

813-0450

813-0448

810-1025

813-0495

COMPONENT

Valve, Water Pressure Regulator

Valve Assembly, Solenoid

Faucet, Double Jointed (with no cutoff valve)

Tubing, Solenoid Valve to Cookpot

Tubing, Regulator Valve to Right Solenoid Valve (used in double units)

Tubing, Regulator Valve to Left Solenoid Valve (used in double units)

Tubing, Solenoid Valve to Faucet

Tubing, Regulator Valve to Solenoid Valve (units with basket lifts only)

Tubing, Solenoid Valve to Faucet (units with basket lifts only)

Coupling, ¼-inch NPT Brass

Compression Fitting, ⅜-inch NPT to Tubing 90º Elbow

Bracket, Pressure Regulator Valve (used in double units)

Brace, Water Inlet (used in double units)

Bracket, Pressure Regulator Valve (units with basket lifts only)

Bracket, Pressure Regulator Valve (units without basket lifts only)

Bracket, Solenoid Valve (units without basket lifts only)

Nut, ½-inch Conduit

Nipple, ¼-inch NPT x 2.5-inch

Nipple, ¼-inch NPT x 1.5-inch

Nipple, ¼-inch NPT x 2.0-inch

Elbow, 90º ¼-inch NPT

Compression Fitting, ¼-inch NPT to Tubing Straight

Tee, ¼-inch NPT Male Branch to ¼-inch NPT Female

7-29

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7.6

Wiring Diagrams

Units with Manual (Thermostat) Controls

7-30

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Units with Computers

7-31

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Frymaster, L.L.C., 8700 Line Avenue, PO Box 51000, Shreveport, Louisiana 71135-1000

Shipping Address: 8700 Line Avenue, Shreveport, Louisiana 71106

TEL 1-318-865-1711

FAX (Parts) 1-318-219-7140

FAX (Tech Support) 1-318-219-7135

819-5680

May 2003

SERVICE HOTLINE

1-800-551-8633

PRINTED IN THE UNITED STATES

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