KitchenAid KSRA22FK User Manual

TECHNICAL EDUCATION

JOB AID 4317324

Introductory models:

KSRA22FK KSRA25FK

KAR-10

SIDE-BY-SIDE

REFRIGERATOR

ELECTRONIC CONTROLS

1/01

TABLE OF CONTENTS

For technical assistance while at the customer's home, call the Technical Assistance Line: 1-800-253-2870.

Have your store number ready to identify you as an Authorized Servicer.

For product specifications, and warranty information, call 1-800-422-1230.

We recommend that you only use factory specified replacement parts. Factory specified replacement parts will fit right and work right because they are made with the same precision used to build every new KITCHENAID®appliance.

Whirlpool Corporation assumes no responsibility for any repairs made on our products by anyone other than Authorized Service T echnicians.

SAFETY FIRST....................................................................................................................................................2

Electrical Power Supply Connections.............................................................................................................2

OVERVIEW..........................................................................................................................................................3

THEORY OF OPERATION ..................................................................................................................................3

Refrigerator Temperature Control...................................................................................................................3

Freezer Temperature Control .........................................................................................................................3

Failure Defaults ..............................................................................................................................................3

Baffle Operation..............................................................................................................................................4

Adaptive Defrost Control................................................................................................................................6

Pulsed Defrost................................................................................................................................................6

Evaporator Fan Delay ...................................................................................................................................6

Over Temperature Alarm ...............................................................................................................................6

Water Filter Indicator .....................................................................................................................................6

Max Cool .......................................................................................................................................................6

COMPONENT LOCATION AND ACCESS..........................................................................................................7

Replacing the Control Board..........................................................................................................................7

Replacing the Air Baffle..................................................................................................................................9

Replacing the Thermistors............................................................................................................................10

DIAGNOSIS........................................................................................................................................................11

Pre-Diagnostics Checks ...............................................................................................................................11

Diagnostics Mode.........................................................................................................................................11

Diagnostics Chart.........................................................................................................................................12

Thermistor Resistance Chart........................................................................................................................12

Troubleshooting Guide.................................................................................................................................13

TECH TIPS.........................................................................................................................................................14

Wiring Diagram .............................................................................................................................................14

Model/Serial Number Plate ..........................................................................................................................15

SAFETY FIRST

Electrical Power Supply Connections

Your safety and the safety of others are very important.

We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.” These words mean:

You can be killed or seriously injured if you don't immediately follow instructions.

You can be killed or seriously injured if you don't follow instructions.

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the instructions are not followed.

wWARNING

Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. Failure to do so can result in death or

electrical shock.

wWARNING

Electrical Shock Hazard Plug into a grounded 3 prong outlet. Do not remove ground prong. Do not use an adapter. Do not use an extension cord. Failure to follow these instructions can result

in death, fire, or electrical shock.

OVERVIEW

The electronic control for 2001 KitchenAid Side-by-Side refrigerators combines several functions previously used in separate components: Adaptive Defrost Control (ADC), Independent Temperature Control (ITC) and Water Filter Indicator Control (WFI). Two new technologies, pulsed defrost and evaporator fan delay, are incorporated into this control.

The numeric display can be set for Fahrenheit or Celsius and will display customer temperature settings. Available features will include: Max Cool and Over Temperature Alarm.

THEORY OF OPERATION

The control runs a 13 second self-diagnostic routine prior to starting a cooling cycle every time it is plugged into a wall outlet. The compressor will start approximately 10 seconds into the self-diagnostic routine.

Refrigerator Temperature Control

A motorized air baffle is used to regulate air flow from the freezer into the refrigerator compartment. The air baffle operation is controlled by input from the refrigerator thermistor. The refrigerator control allows the customer to select a temperature range of 33°F (1°C) to 41°F (9°C). When the refrigerator thermistor senses a temperature above the customer setting, the baffle opens and the evaporator fan motor begins to run. The compressor may or may not be running at this time based on the temperature in the freezer. The baffle closes when the refrigerator temperature setting is reached.

Freezer Temperature Control

Input from the freezer thermistor is used by the control to determine compressor run time. The freezer thermistor allows the customer to select a temperature setting of -5°F (-21°C) to +5°F (-15°C). When the freezer thermistor senses a temperature above the customer setting, the control immediately energizes the compressor. The evaporator fan motor is energized after a 40-second delay. This delay allows the evaporator to begin to cool before air is circulated. If the evaporator fan is already running to cool the refrigerator section, it will continue without delay. The compressor turns off when the proper freezer temperature is reached, but the evaporator fan continues to run for 2 minutes. To protect the compressor, the control will not allow the compressor to restart for a minimum of 6 minutes.

Failure Defaults

To provide a measure of customer satisfaction in the event of a thermistor or keypad failure, the control will use one of the following default modes. The default mode continues until the failure is corrected.

•

Refrigerator Thermistor: If the refrigerator thermistor fails, the control will cycle the baffle open for 10 minutes, closed for 10 minutes. The evaporator fan will run when the baffle is open.

•

Freezer Thermistor: If the freezer thermistor fails, the compressor and evaporator fan will cycle on and off together in 15-minute intervals.

•

Keypad Failure Mode: If the control detects that the keypad is not working, it will default to temperature regulation of 0°F (-18°C) for the freezer and 37°F (3°C) in the refrigerator.

Baffle Operation

The baffle assembly consists of a 120vac motor, a baffle door and a feedback switch. The switch provides a sensing circuit to the control to let it know the position of the baffle door. When the refrigerator thermistor senses a temperature above the customer setting, the motor runs to open the baffle door.

Refrigerator thermistor calling for cooling - Baffle opening

When the baffle door is fully open, the switch closes sending 120vac out pin 4 (Y/R wire) on the baffle door assembly to pin P1-1 on the control. When the control senses 120vac at P1-1, the motor stops with the door fully open.

Refrigerator thermistor calling for cooling - Baffle open

AIR BAFFLE ASSEMBLY

Y/R

EVAP. FAN MOTOR

BK WH/BK

BAFFLE MOTOR AND EVAPORATOR FAN RUNNING

BAFFLE OPENING

ELECTRONIC CONTROL

P1-1

BAFFLE

TRIAC

OR/BK

P2-1

P2-3

EVAP. MOTOR

TRIAC

P4-3 P4-4

P1-3

AIR BAFFLE ASSEMBLY

Y/R

EVAP. FAN MOTOR

BK WH/BK

BAFFLE MOTOR OFF, DOOR FULLY OPEN

EVAPORATOR FAN MOTOR RUNNING

OR/BK

ELECTRONIC CONTROL

P1-1

P2-1

P2-3

P4-3 P4-4

EVAP. MOTOR

TRIAC

P1-3

When the refrigerator thermistor reaches the cutout temperature, the control energizes the baffle motor to close the door.

Refrigerator thermistor satisfied - Baffle closing

When the baffle is fully closed, the switch opens interrupting power to P1-1. This signals the control to stop the baffle motor with the door fully closed.

Refrigerator thermistor satisfied - Baffle closed

AIR BAFFLE ASSEMBLY

Y/R

MOTOR RUNNING AND DOOR CLOSING

ELECTRONIC CONTROL

P1-1

BAFFLE

TRIAC

OR/BK

P2-1

P4-3 P4-4

P1-3

AIR BAFFLE ASSEMBLY

Y/R

MOTOR OFF AND DOOR FULLY CLOSED

ELECTRONIC CONTROL

P1-1

OR/BK

P2-1

P4-3 P4-4

P1-3

+ 11 hidden pages