Whirlpool WP10442411 Defrost Thermostat for Refrigerator

The Whirlpool WP10442411 Defrost Thermostat is a component of the refrigerator's automatic defrost system. It functions as a temperature switch that regulates the defrost cycle to minimize ice accumulation in the freezer compartment. This defrost thermostat uses bimetallic strips to sense temperature changes within the freezer. When temperatures rise above a specified level, the bimetal strips bend, opening an electrical contact that starts the defrost cycle and activates the heating element to melt any frost buildup. Once the temperature decreases below a designated point, the bimetal strips contract, closing the contact and stopping the defrost cycle. This process helps maintain an optimal environment in the refrigerator, reducing frost accumulation that could hinder airflow and cooling performance. The Whirlpool WP10442411 Defrost Thermostat is straightforward in its design.