Whirlpool Corporation Refrigerator Defrost, Bi-Metal WPW10160570, Replaces W10160570

Genuine OEM refrigerator defrost bi-metal thermostat, also described by retailers as a bimetallic defrost thermostat or refrigerator defrost bi-metal.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Refrigerator not defrosting
• Frost or ice accumulation around the evaporator
• Refrigerator running constantly while cooling performance declines
• Freezer cold but refrigerator compartment warm
• Defrost heater not receiving power because the thermostat remains open when cold

Check Before Replacing

• Disconnect refrigerator power before accessing or testing the component.
• Visually inspect the thermostat, wiring, and connectors for damage, loose connections, or corrosion.
• With the thermostat sufficiently cold, use a multimeter to check for continuity; an open reading while cold may indicate a problem, but the result must be interpreted with the appliance’s service information.
• If the appliance has a model-specific service diagnostic, observe the defrost bi-metal status and check whether the defrost heater operates; do not bypass the bi-metal except as specifically directed by the applicable service documentation.
• Do not diagnose the thermostat from frost or temperature symptoms alone; also consider the defrost heater, control, wiring, airflow, and sealed-system components.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool Corporation refrigerator defrost bi-metal thermostat
• Temperature-operated safety and control component in the evaporator defrost circuit
• Closes when cold to allow defrost-heater operation
• Opens as temperature rises to limit defrost heating
• Also identified in retailer descriptions as a bimetallic defrost thermostat

Installation Notes

• Disconnect electrical power before servicing.
• Access the evaporator/defrost area according to the refrigerator model’s service procedure.
• Replace the thermostat with the same orientation and sensing position as the original component.
• Reconnect wiring and connectors exactly as originally installed; inspect connections before restoring power.
• After installation, restore power and verify the refrigerator’s defrost operation using the applicable model-specific service procedure.
• Do not permanently bypass the bi-metal thermostat.

Verified Compatible Models

JS42CXDUDB02, JS42PPDUDB15, JS48CXDBDB00, JS48NXFXDW04, JS48PPDUDE01, JS48SSDUDE00, JS48SSDUDE01, KBSD608EBS00, KSSC36QTS04, KSSC48FTS15, KSSO48FTX02, KSSS42FTX02, KSSS42FTX03, KSSS42QTW02, KSSS48QTX04

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