The Bi-Metal Defrost Thermostat specifically designed for refrigerators, with the part number WP4387500, is available from several brands under Whirlpool, including Amana, KitchenAid, Maytag, Jenn-Air, Magic Chef, Roper, and Admiral. Whirlpool also produces this component for Sears-Kenmore and Ikea appliances. This thermostat plays a crucial role in safeguarding the evaporator against overheating during the defrost cycle.
To securely store perishable items, shut down the refrigerator before beginning any maintenance tasks. Disconnect the appliance from its power supply to ensure safety prior to installation. It is advisable to wear protective gloves to safeguard your hands during this process.