How can I check that my current drain heater is actually working or in operating condition, and that there is not another problem occuring? This is in regards to my fridge heat exchanger freezing over with ice periodically.
If the lines coming out of the back wall of the refrigerator and going to the evaporator are icing up and the evaporator icing up then the drain heater would not be the issue. It sounds like an air leak or the thermistor for the defrost that may be at fault.
Answered by AppliancePartsPros.com | Friday, May 03, 2013