My Kenmore model 59676592600 periodically heats up in both the freezer and refrigerator section. We have found, by chance, that unplugging the unit for about 30 minutes solves the problem. Once plugged in, the fridge is fine for a day or two. Research on the internet makes me think this is a defrost timer problem. Can you confirm this diagnosis and let me know if the defrost timer is on the AP4358837 electronic control board? Any assistance is much appreciated. Thanks
ANSWER Hi. The defrost circuit is controlled through the defrost thermistor part # 12002355, 10,000 ohms tolerances sending information to the control board part # W10207861. This control will allow the defrost cycle to begin after approx. 6 hrs for up to 25 minutes or when the defrost thermostat part # 67003426 mounted on the evaporator upper coils) to open because the defrost heater part # 67002493 has heated up past 45° or what the defrost thermostat is preset to. So there are 4 main devices that allow the defrost cycle. In my opinion it is the combination of the defrost thermostat and the defrost control board. Use a volt/ohm meter part # TJMA-DM1 to assist you in your diagnostics. Find the wiring diagram and user tech. sheet to put the unit into a diagnostic mode to explain the fault codes. Thank You.
Answered by AppliancePartsPros.com | Saturday, November 03, 2012