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Came home from vacation, lights worked, compressor and fans working, but it was blowing warm air in both fridge and freezer, i had a thermometer in it thar read over 80 degrees.. Would that be a bad thermostat, or a defrost thing sticking?

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I would check for any ice build up in the freezer coils, if there is a freeze up this would prevent air circulating. If it was on defrost the compressor would not be running. Same for thermostat. It is possible for your compressor to have a mechanical failure, but unlikely. More likely would be a blockage or sludging in the capilliary tubing so there is no movement of refrigerant through the system. This will eventually lead to your compressor burning out.In this situation you would need to have the system flushed and the filter replaced. You can check for any freezing directly after the filter drier located in the compressor compartment at the back of the fridge. It is a cylindrical copper tube with a quarter inch tube going in and a small capilliary tube comming out. if there is freezing or a cold feeling on the cap tube side. then the filter is blocked.

Posted on Mar 05, 2009

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