This DIY repair guide gives step-by step instructions for how to replace a refrigerator thermistor. The thermistor senses temperature changes in the refrigerator and sends the control board a signal about the temperature change. If the thermistor fails, the refrigerator won't stay at the temperature you set, resulting in items either freezing or spoiling because it's too cold or too warm. Replace the thermistor with the manufacturer-approved fridge part that fits your model.
Watch our troubleshooting video to determine whether the thermistor in your refrigerator is working. Although the thermistor in this video might be in a different location, the troubleshooting is the same.
Use this basic procedure to replace the thermistor in Kenmore, Frigidaire, Whirlpool, GE, Maytag, Amana, KitchenAid, Samsung, LG, Gibson, Crosley and Haier refrigerators.
