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KitchenAid Refrigerator Freezer is Cold But Refrigerator is Warm

KBFA25ERSS01

The part(s) or condition(s) listed below for the symptom Refrigerator freezer is cold but refrigerator is warm are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Refrigerator freezer is cold but refrigerator is warm

Cause 1The Evaporator Coils are Frosted Over

The defrost heater assembly turns on a few times throughout the day to melt away any frost that may have accumulated on the evaporator coils. If the defrost heater assembly is defective, frost will continue to accumulate on the evaporator coils, and the coils will become plugged with frost. If the evaporator coils are frosted over, the airflow through the coils will be restricted, causing the refrigerator not to cool. Check the evaporator coils to determine if they are frosted over. If the evaporator coils are frosted over, test each component of the defrost system.

Cause 2Evaporator Fan Motor

The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. If the evaporator fan is not working, the freezer or refrigerator will not cool adequately. To determine if the evaporator fan motor is defective, try turning the fan blade by hand. If the fan blade does not turn freely, replace the fan motor. Additionally, if the motor is unusually noisy, replace it. Finally, if the motor does not run at all, use a multimeter to test the motor windings for continuity. If the windings do not have continuity, replace the evaporator fan motor..

Parts
Evaporator Fan Motor for your KitchenAidRefrigerator
Evaporator Fan Motor - Part # 1174059 Mfg Part # 12002744

Freezer (evaporator) fan motor

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Cause 3Damper Control Assembly

The air damper control opens and closes to let the proper amount of cold air into the refrigerator compartment. If the damper does not open properly, it won’t let enough cold air into the refrigerator. Check the damper control to determine if it is broken or stuck closed.

Parts
Damper Control Assembly for your KitchenAidRefrigerator
Damper Control Assembly - Part # 1057232 Mfg Part # WP67003903

Air damper control assembly *Please call with model and serial number to verify correct part.

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Cause 4Damper Control Assembly

The air damper control opens and closes to let the proper amount of cold air into the refrigerator compartment. If the damper does not open properly, it won’t let enough cold air into the refrigerator. Check the damper control to determine if it is broken or stuck closed.

Parts
Damper Control Assembly for your KitchenAidRefrigerator
Damper Control Assembly - Part # 1187130 Mfg Part # WP67006249

Air damper control assembly *Please call with model and serial number to verify correct part.

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Cause 5Defrost Thermostat

The defrost thermostat monitors the temperature of the evaporator coils. When the coils drop below a set temperature, the thermostat contacts close to allow power to flow to the defrost heater during the defrost cycle. In the defrost cycle, the defrost heater melts any frost that may have accumulated on the evaporator coils. If the defrost thermostat is defective, the thermostat contacts will not close. As a result, the thermostat won’t provide power to the defrost heater. To determine if the defrost thermostat is defective, use a multimeter to test it for continuity. If the defrost thermostat does not have continuity when it reaches the low temperature of its operating range, replace it.

Part Testing
Parts
Defrost Thermostat for your KitchenAidRefrigerator
Defrost Thermostat - Part # 1033990 Mfg Part # WP67003426

Defrost thermostat

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Cause 6Main Control Board

The main control board might be defective. However, the control board is very rarely the cause of the problem. Before replacing the control board, first test all of the more commonly defective components. If none of these components are defective, consider replacing the main control board.

Parts
Main Control Board for your KitchenAidRefrigerator
Main Control Board - Part # 4430642 Mfg Part # WP12782036SP

High voltage control board