W10866230 - Whirlpool Refrigerator Thermostat

This Whirlpool Refrigerator Thermostat (W10866230) is a genuine part designed for specific Whirlpool refrigerators. It's engineered to act as a precise on/off switch that activates key components of the refrigeration system, such as the compressor, condenser fan, and evaporator fan, to maintain programmed temperature ranges in the fresh food and freezer compartments. This thermostat includes a sensor bulb and capillary tube that connect to the evaporator outlet, measuring cold air temperature to regulate the refrigerator's internal environment. It also features a separate defrost thermostat to prevent excessive heating of the coils during defrost cycles. If your refrigerator is not maintaining a consistent temperature, or there's an issue with the refrigeration cycle not starting or stopping as it should, it could indicate a failing thermostat. Before considering a replacement, it's critical to verify your device's model number to ensure compatibility with this part.