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What Is the Function of the Thermistor in a Refrigerator?

Refrigerators and freezers have been a lifesaver for many households around the world because they preserve perishable items that could go bad quickly. Although the housing unit may seem responsible for protecting your food, skincare or any other items you put in your refrigerator or freezer, it’s actually the refrigerator thermistor and evaporator thermistor that control the temperature of your entire appliance.

If your refrigerator or freezer isn’t cooling properly, your thermistor has likely malfunctioned, and you need to repair it. It’s an easy job, so once you know how to locate the thermistor, you’ll be able to repair your appliance faster than you can say “Do you want Halo Top or So Delicious Dairy-Free Ice Cream?”

What’s a Thermistor?

According to Sears Parts Direct, a refrigerator thermistor senses the temperature change in a refrigerator. The sensor’s sole purpose is to send the control board a signal when the refrigerator’s temperature changes. It’s essential that your thermistor is always working because if it’s not, items in your fridge can spoil from the appliance running too hot or too cold.

According to Appliance-Repair-It, the General Electric (GE) refrigerator thermistor location is the same as all GE refrigerators manufactured after 2002. That includes top freezers, bottom freezers and side-by-side refrigerator models. All thermistors have the same part number no matter where they’re located.

It’s important to note that they’re not called thermistors on all of the models. Sometimes they’re also called a temperature sensor or refrigerator evaporator sensor.

Evaporator Thermistor Location

According to Appliance-Repair-It, the evaporator thermistor is attached to the top of the refrigerator coils in the freezer. The sole purpose of the evaporator thermistor is to control the defrosting cycling. If your evaporator thermistor malfunctions, your refrigerator won’t defrost, and the coils will be packed with frost and ice.


Post time: Sep-30-2024