PERSISTENT FROST BUILDUP ON THE EVAPORATOR OR FREEZER BACK PANEL
Whirlpool Corporation Refrigerator Defrost Heater W10524056, Fixes Persistent frost buildup on the evaporator or freezer back panel
Genuine Whirlpool OEM refrigerator defrost heater. Whirlpool repair-parts documentation identifies W10524056 as the defrost-heater component; retailer and authorized-parts listings also identify it as a refrigerator heater/defrost heater.
Part W10524056Whirlpool Corporation
Guaranteed to Fit — or your money back.
Confirm your full appliance model number before ordering.
Confirm your full appliance model number before ordering.
Is This the Right Part?
Part NumberW10524056
ManufacturerWhirlpool Corporation
Appliance TypeRefrigerator
Part TypeDefrost Heater
✅ Cross Reference Information
Current Part NumberW10524056
Common Symptoms
- Progressive frost or ice accumulation around the evaporator cover
- Reduced airflow and cooling as frost obstructs the evaporator
- Cooling may temporarily improve after a manual defrost, then decline again if the defrost system is not operating
Check Before Replacing
- Unplug the refrigerator before accessing the evaporator area or heater wiring.
- Visually inspect for heavy, recurring frost around the evaporator cover; this supports a defrost-system issue but does not by itself prove heater failure.
- With power disconnected and the heater isolated as specified by the model’s service documentation, check heater continuity and compare the result with the applicable model service data.
- Inspect the heater connector and visible wiring for loose connections, corrosion, or damage without cutting or bypassing the circuit.
- If the heater tests normally, check the related defrost thermostat/bi-metal, thermal protection, wiring, and electronic control system rather than assuming the heater is defective.
Pro Tip
A frosted evaporator does not uniquely identify a failed heater; the thermostat, thermal protection, wiring, or control system can produce similar defrost symptoms. Verify the heater electrically with power disconnected before replacing it.
Part Details
Part NumberW10524056
Part TypeDefrost Heater
ManufacturerWhirlpool Corporation
Appliance TypeRefrigerator
Primary FunctionHeats the refrigerator evaporator during the automatic defrost cycle to melt accumulated frost and maintain airflow through the evaporator.
Installation Notes
- Disconnect electrical power before beginning service.
- Access generally requires removing freezer drawers or shelves and the evaporator cover; exact disassembly varies by refrigerator model.
- Disconnect the heater connector before removing the evaporator cover assembly or heater.
- Release the heater from its mounting bracket and slide it from beneath the evaporator without bending or damaging the evaporator tubing.
- Route and reconnect the heater wiring as originally positioned, then reassemble the evaporator cover and interior components in reverse order.
- Confirm the exact refrigerator model’s service documentation before starting because fasteners, access steps, and heater mounting details can vary.
Verified Compatible Models
JB36NXFXLE00, JB36NXFXLE01, JB36NXFXRE00, JB36NXFXRE01, JF36NXFXDE00, JF36NXFXDE01, JF42NXFXDE00, JF42NXFXDE01, JF42NXFXDE02, KBBL206EPA00, KBBL206EPA01, KBBL206ESS00, KBBL206ESS01, KBBL306EPA00, KBBL306EPA01
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
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