Frigidaire Defrost Heater Test

Before you can test your defrost heater you have to remove it from your refrigerator.

Frigidaire defrost heater test.

The defrost heater and defrost thermostat. If you find that it is not going t. The defrost heater is a commonly replaced part on a fridge that isn t cooling properly. At that point the control board should send electricity through the bi metal defrost thermostat to the defrost heater.

Frigidaire also manufactures air conditioning units ranges microwaves dryers dehumidifiers and clothes washers. If the defrost heater and defrost thermostat are working properly the defrost control board is. Firmly grasp these connectors and pull them off the terminals. If you have a side by side refrigerator the defrost thermostat is found at the back of the freezer side.

Please note that a continuity test will not work on defrost heater because the ohm value is too high to register on a continuity test. In frigidaire refrigerators as well as other manufacturer s models the defrost timer is the device that regulates the cooling mechanisms and keeps the unit s components from freezing up. In freezer on top models it may be located under the floor of the unit or it could be found at the back of the freezer. If you have an autoranging multimeter then turn it to the home setting.

If you have a manual ranging multimeter then you ll. If the board fails the refrigerator will not go into the defrost cycle. If you have this type of frigidaire refrigerator you can force your refrigerator to do a defrost cycle by pressing the refrigerator light switch 5 times within 6 seconds. To test the defrost heater you ll need to use a multimeter to do an ohm test.

You may need a pair of needle nosed pliers to help you. Other commonly replaced parts when the freezer is cold but the refrigerator is warm are. The defrost control board determines how often to run the defrost cycle. This video provides information on how to test a defrost heater on a refrigerator.

Before replacing the defrost control board first test. If your refrigerator or freezer is not cooling you should check to see if it is going through the automatic defrost cycle. The thermostat is wired in series with the defrost heater and when the thermostat opens the heater shuts off.