Whirlpool Thermistor WP2188820 OEM Part

The thermistor serves as an authentic OEM replacement component specifically designed for Whirlpool refrigerators, with compatibility extending to brands like Whirlpool, Amana, KitchenAid, Maytag, Jenn-Air, Magic Chef, Roper, and Admiral. It also accommodates selected models from Sears-Kenmore and Ikea. This part functions as a temperature sensor, essential for monitoring and regulating the internal climate of both refrigerator and freezer sections, ensuring optimal distribution of cool air throughout the unit.

Signs of a failing thermistor include fluctuating compartment temperatures, which may appear excessively warm or cold, increased operation of evaporator fans and other cooling systems, and complications with the defrost cycle, often signaled by error messages such as Er/Ed on the control display.

A thermistor may degrade due to multiple reasons. Persistent shifts in the appliance’s internal environment over time can lead to wear and tear. Furthermore, mineral deposits can accumulate, insulating the sensor's surface and affecting its performance. Physical damage such as cracks might occur if the refrigerator experiences overloading.

This replacement part also fits certain Kenmore Elite refrigerator models.