Whirlpool Refrigerator Defrost Thermostat WPW10392132, Replaces W10392132

OEM refrigerator defrost thermostat used in the defrost system to help prevent evaporator-coil ice buildup and related cooling problems.

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✅ Cross Reference Information

Common Symptoms

• Progressive loss of cooling caused by evaporator-coil icing
• Reduced airflow from the evaporator area because frost blocks the coil or air passages
• Defrost heater not operating when the thermostat should be closed
• Recurring frost buildup after temporary manual defrosting

Check Before Replacing

• Disconnect electrical power before testing or accessing the part.
• Inspect the evaporator area for abnormal frost buildup, while recognizing that icing can also result from other defrost-system or airflow faults.
• With the thermostat removed from the circuit and sufficiently cold, use a multimeter to check continuity; it should normally be closed at freezer temperature.
• Warm the thermostat and recheck continuity; it should open as temperature rises. Use the appliance-specific tech sheet for exact temperature specifications when available.
• Check the defrost heater and control circuit separately rather than concluding that the thermostat is defective from an icing symptom alone.

Pro Tip

Part Details

Key Features

• Whirlpool OEM defrost thermostat
• Bimetal temperature-sensitive switching element
• Normally closed when sufficiently cold and open when warmed
• Used in the refrigerator evaporator defrost circuit
• Replaces Whirlpool part W10392132

Installation Notes

• Disconnect refrigerator power before installation.
• Access and part location vary by refrigerator model; follow the model-specific service information.
• Reconnect wires exactly as originally arranged and ensure the thermostat is secured in its original position on or near the evaporator assembly.
• Do not substitute a generic thermostat unless its electrical and temperature specifications are confirmed for the appliance.
• Restore covers and wiring protection before reconnecting power.

Verified Compatible Models

5GT311FFEW00, 5MT519SFEG00, 5MT519SFEH00, 5VA1RXGFYW00, 5VA9RXGFYW00, 5VM9BXGFYA00, 5VM9BXGFYW00, 5VMTM21BW00, 5VWT18TFYW00, 5VWT31SFYW00, A1RXNGFYB00, A1RXNGFYS00, A1RXNGFYW00, A9RXNGFYB00, A9RXNGFYS00

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.