How To Test Your Defrost Thermostat & How They Work

This video shows the proper way to test your defrost thermostat.  There is a lot of misinformation on testing the defrost thermostat.  Most defrost thermostats CANNOT be tested in a glass of ice water because they have a closing temperature that is colder than 34°F.

If you find that you have a bad defrost thermostat you can shop for a new one on our online store by searching with your refrigerators model number, or entering the part number off of the old defrost thermostat here: http://partsdr.com/appliance-type/ref...  We sell new OEM appliance parts for Whirlpool, Maytag, Kenmore, Amana, Estate, Roper, Frigidaire, Electrolux,  Tappan, Westinghouse, Kitchen Aid, Jenn Air, Bosch, LG, Samsung, and more.

If your refrigerator is not going through the automatic defrost cycle then you will need to test the defrost thermostat on your refrigerator.  When the refrigerator stops going through the automatic defrost cycle the refrigerator will not cool properly because the frost will block the air flow on the evaporator coil and cause the cold air to stop circulating.  The defrost thermostat is usually located behind the back panel in the freezer section of the refrigerator, and it is usually clipped onto the evaporator coil.

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