Whirlpool Refrigerator Defrost Bimetal Thermostat - WPW10225581

Whirlpool Refrigerator Defrost Bimetal Thermostat - WPW10225581

Restore the automatic defrost cycle with this genuine OEM Whirlpool Refrigerator Defrost Bimetal Thermostat. This refrigerator defrost bimetal thermostat helps control or perform periodic defrosting so frost does not block evaporator airflow.

WPW10225581 is a genuine OEM Whirlpool Refrigerator Defrost Bimetal Thermostat used when the original component fails or no longer performs correctly.

Fits These Brands / Families: Select Whirlpool refrigerator models that list WPW10225581 as the correct service part.

This part commonly replaces previous part numbers including W10225581 and 2196155.

Fitment / What To Verify: Match the exact sensing function and location, connector, mounting, and model-specific calibration/rating when specified. Similar sensors and thermostats may use different electrical characteristics.

Please confirm fitment with your appliance model number before ordering.

Is it time to replace?

• Common Symptoms: Heavy frost buildup, warm refrigerator temperatures, poor airflow, or a defrost cycle that never starts or ends correctly.
• Visible/Sensory Cues: Ice-packed evaporator, open heater, thermostat that does not change state at the proper temperature, or timer/control that does not advance.

Pro Tip: Diagnose the complete defrost circuit before replacing one component. Heater, thermostat/sensor, wiring, and control faults can produce similar symptoms.

Technical Specifications