Evaporator coils completely freeze over. Cleaned condenser coils and manually defrosted refrigerator. Week later it is frozen over again. Door seals look to be good. Think it is defrost timer, defrost thermostat or heater. How do I determine which one?
ANSWER Hello Bill. It sounds like you may have a defrost problem with the unit. If so, you will need to test the defrost heater and the defrost thermostat. They should read closed for continuity when cold. You can test this with a multi-meter TJMA-DMT3. I will include a link at the end to assist you how to use the multi-meter if needed. If both parts are good, you will need to replace the defrost timer. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
Answered by AppliancePartsPros.com | Wednesday, April 09, 2014