Whirlpool Defrost Thermostat WP4387503 OEM Part

Whirlpool, a prominent manufacturer, produces a diverse array of appliances under brands like Whirlpool, Amana, KitchenAid, Maytag, Jenn-Air, Magic Chef, Roper, and Admiral. They also create products for Sears-Kenmore and Ikea. The Defrost Bimetal Thermostat is an original equipment manufacturer (OEM) component specifically designed for Whirlpool refrigerators. It operates as a safety device, managing the defrost cycle by turning off the defrost heater once the evaporator coil achieves a predetermined temperature, thereby averting overheating and consequent damage.

Failures in this thermostat are commonly attributed to natural wear, electrical malfunctions, or exposure to moisture and ice.

Indicators of a malfunctioning Defrost Bimetal Thermostat include:

- The refrigerator operates incessantly without pausing
- Excessive frost formation on evaporator coils, diminishing cooling performance
- Insufficient cooling in the refrigerator or freezer compartments
- Unstable temperature variations within the refrigerator

This OEM component is also compatible with various models from Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and certain Kenmore units.

The thermostat effectively resolves issues such as:

- Accumulated frost
- Freezer temperatures being excessively low
- Improper defrosting of the freezer
- Overcooling in the refrigerator
- Prolonged operating cycles of the refrigerator
- Leakage problems
- Excessive warmth in the freezer
- Inadequate cooling in the refrigerator