KAR-10 TECHNICAL EDUCATION SIDE-BY-SIDE REFRIGERATOR ELECTRONIC CONTROLS JOB AID 4317324 © 2001. All rights reserved. ® Registered Trademark/TM Trademark of KitchenAid, U.S.A. 1/01 Printed in U.S.A.
TABLE OF CONTENTS SAFETY FIRST ....................................................................................................................................................2 Electrical Power Supply Connections.............................................................................................................2 OVERVIEW ..........................................................................................................................................................
SAFETY FIRST 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.
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.
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 N L1 ELECTRONIC CONTROL P1-1 AIR BAFFLE ASSEMBLY Y/R BK BAFFLE TRIAC 6 4 OR/BK P1-3 P2-1 WH 5 EVAP.
When the refrigerator thermistor reaches the cutout temperature, the control energizes the baffle motor to close the door. Refrigerator thermistor satisfied - Baffle closing N L1 ELECTRONIC CONTROL P1-1 AIR BAFFLE ASSEMBLY Y/R BK BAFFLE TRIAC 6 4 OR/BK P1-3 P2-1 WH 5 MOTOR RUNNING AND DOOR CLOSING P4-3 P4-4 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.
Adaptive Defrost Control The Adaptive Defrost Control allows the unit to enter a defrost mode only when it is needed. When powered up for the first time, the control will initiate a defrost cycle after 8 hours of compressor run time. By monitoring the duration of defrost heating time and compressor run time, the control will continuously adapt the time between defrosts to optimize efficiency. Time between defrost periods will vary from 8 to 100 hours.
COMPONENT LOCATION AND ACCESS IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics Do not open the package containing the service replacement electronic board until it is time to install it. ESD conditions are present everywhere. ESD may damage or weaken the electronic boards. The new board may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress. • Use an anti-static wrist strap.
5. Remove the new control board from the electrostatic packaging. Carefully, bend the front of the board up until the tabs between the circuit boards separate. The boards will remain connected by trace wires. Be careful not to damage components on the topside of the board. 6. Position the tabs from the front of the board under the edge of the main board until it is bent to about a 40° angle. Front Tab Front board tab under main board 7. Reconnect the wiring connectors to the new board. 8.
Replacing the Air Baffle w WARNING Style 1 Ice-in-the-door Ice Maker Air Chute Air Scoop Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. Failure to do so can result in death or electrical shock. 1. Unplug refrigerator or disconnect power. 2. Remove the mounting screw and wire channel from the top of the refrigerator compartment. Style 2 Standard Ice Maker 3. Remove the mounting screw and air baffle cover. 6.
7. Pull the air baffle assembly into the refrigerator compartment and disconnect the wiring connector from the baffle motor. 2. Remove the wiring channel from the top of the refrigerator compartment. 3. Remove the air baffle cover and disconnect the thermistor lead connector. 8. Reinstall the baffle assembly in the reverse order. 9. Plug in refrigerator or reconnect power. Replacing the Thermistors w WARNING 4. Remove the lead from the strain relief.
Freezer Compartment Thermistor: 1. Unplug refrigerator or disconnect power. 2. Remove the air baffle assembly. See the “Removing the Air Baffle” section. 3. Remove the tape from the freezer thermistor lead. 4. Pull freezer thermistor through the refrigerator compartment wall and disconnect the lead connector. 5. Connect the new thermistor lead connector. 6. Route the thermistor and lead through the baffle opening into the freezer.
Diagnostics Chart Step Component tested Comment Results Freezer Thermistor The board will check the resistance of the thermistor and display the results on the water filter indicator. Good (Pass/green) Refrigerator Thermistor The board will check the resistance of the thermistor and display the results on the water filter indicator. Evaporator Fan Motor The control switches neutral to the evaporator fan motor. Confirm evaporator fan motor is running and operating correctly.
Troubleshooting Guide Problem Possible Cause 1. Freezer too warm. • Freezer thermistor failed. Run diagnostic test Step 1. • Excessive frost on evaporator. Check defrost system with diagnostic test, Step 6. • Freezer light not shutting off. • Condenser blocked or fan motor not running. • Evaporator fan motor failed. Confirm at Step 3 in diagnostic test mode. 2. Freezer too cold. • Failed freezer thermistor. Run diagnostic test. 3. Refrigerator too warm. • Refrigerator thermistor failed.
TECH TIPS 115 VOLTS 60 HERTZ RIDGED WIRE PK TEST TERM BR BK PK PK BR BI-METAL WH BR DEFROST HEATER 1 2 3 4 5 6 YL/ RD BR WH RD PK BK WH P1 RD STAR C T S S RUN 5 4 WH M M COMPRESSOR PTC RELAY WH RD COND.
Model/Serial Number Plate SERIAL NUMBER DESIGNATOR SERIAL NUMBER S L 36 50001 SR A MANUFACTURING SITE S = Ft.
NOTES 16