Refrigerator was warm but the freezer was still cold.

ApplianceAmana Refrigerator

ModelBG21V1C

Level of DifficultyEasy

Time to do repair30 - 60 mins

Age of Appliance5 - 10 years

Tools Pliers
Socket set

Gregory From Orange, MA

Jun 14, 2012

I took the rear panel off of the inside of the freezer to expose the evaporator coils. They were completely frozen up and blocking any airflow from getting up to the refrigerator. I used a hair dryer to thaw out the coils and the fridge worked perfectly but after doing some research I realized that the automatic defrost system was not working properly and if I didn’t fix it the coils would just keep freezing up. The defrost system thaws out the coils every 8 hours and consists of 3 things 1. Heating element under the coils 2. The defrost thermostat and 3. The defrost timer. The timer comes on every 8 hours and sends power to the thermostat. If the thermostat is cold enough (20 degrees or less) then it acts as a short and sends power to the heating element until the thermostat reaches 50 degrees at which time it opens and shuts the heating element off.
I checked the heating element by shorting out the thermostat and turning the defrost timer knob until it clicked (this should initiate the defrost cycle). When I did this the heater got hot quickly so I knew the heater and the timer were OK. This meant the problem had to be the thermostat. I decided to replace the timer as well because it was inexpensive, and I read that they tend to fail after a while.
It has been a week since I replaced the parts and the refrigerator is working perfectly

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

Bimetal Defrost Thermostat - 6" Leads

Part Number: PS1997225

$20.84
In Stock

Defrost Timer Kit - 120V 60Hz

Part Number: PS2167006

$16.84
In Stock