Brs for Model Number WZF79R20DW00 The freezer iced up in the evaporator, blocking the vents and stopping the evaporator fan. Checked the Thermistor for continuity - Yes continuity. Replaced the control box with new. Unit worked for about three weeks then malfunctioned again. Again, checked Thermistor and gets a continuity reading. Replaced the Control Box a second time and same problem re-occur about two weeks later. Defrost Heater is OK: Thermistor still read Good for continuity Could the Thermistor be the problem? Working intermittently? Model: WZF79R20DW00
Answer BRS, The thermistor should have a resistance reading to it. The resistance at room temp should read approximately 2.7K ohms. If it is not then this would be the issue. Read More... Answered by AppliancePartsPros.com | Thursday, June 22, 2017