EVAPORATOR FROST OR ICE BUILDUP CAUSED BY A DEFROST CIRCUIT THAT IS NOT OPERATING
Whirlpool Refrigerator Defrost Heater Assembly / Defrost Heater and Evaporator Harness Assembly W11650661, Fixes Evaporator frost or ice buildup caused by a defrost circuit that is not operating
Defrost heater and evaporator harness assembly including the thermal fuse; connects the defrost heater and evaporator fan motor to the refrigerator electrical circuits.
Part W11650661Replaces W11573117Whirlpool
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 NumberW11650661
ReplacesW11573117
ManufacturerWhirlpool
Appliance TypeRefrigerator
Part TypeDefrost Heater Assembly / Defrost Heater and Evaporator Harness Assembly
✅ Cross Reference Information
Current Part NumberW11650661
ReplacesW11573117
Common Symptoms
- Refrigerator is not defrosting
- Heavy frost or ice accumulates on the evaporator
- Refrigerator runs constantly
- Freezer remains cold while the refrigerator compartment becomes warm
- Cooling performance decreases as frost restricts airflow
Check Before Replacing
- Disconnect electrical power before inspecting or testing the assembly.
- Inspect the evaporator area for frost or ice buildup that could indicate a defrost-system problem.
- Using the refrigerator’s model-specific tech sheet, run the applicable forced-defrost or service diagnostic and observe whether the heater circuit is commanded on.
- With power disconnected, check heater and thermal-fuse continuity according to the model’s technical documentation; an open circuit indicates a fault in that circuit, but does not by itself identify which defrost component caused the problem.
- Inspect the harness connectors and wiring for loose terminals, damaged insulation, or signs of overheating; do not bypass the thermal fuse.
Pro Tip
A failed heater harness is only one possible cause of frost buildup. If heater and thermal-fuse continuity are normal, continue checking the model-specific defrost control, thermistor, wiring, and airflow conditions rather than replacing this assembly solely from the symptom.
Part Details
Part NumberW11650661
Part TypeDefrost Heater Assembly / Defrost Heater and Evaporator Harness Assembly
ManufacturerWhirlpool
Appliance TypeRefrigerator
Primary FunctionRestores the refrigerator defrost circuit by providing the defrost heater, thermal fuse, and evaporator-fan-motor wiring connection so accumulated evaporator frost can be melted during a defrost cycle.
Installation Notes
- Disconnect power before beginning service and allow the evaporator area to thaw as needed without damaging the liner or wiring.
- Use the refrigerator’s model-specific service information for panel removal, connector locations, and diagnostic procedures.
- Replace the complete assembly with the connectors and harness routed in the same manner as the original; do not alter or bypass the thermal fuse.
- After installation, verify that connectors are fully seated and that wiring is clear of the evaporator, fan, and other moving or sharp components before restoring power.
Verified Compatible Models
ASI2575GRB08, ASI2575GRB11, ASI2575GRS08, ASI2575GRS11, ASI2575GRW08, ASI2575GRW11, MSS25C4MGB06, MSS25C4MGW06, MSS25C4MGZ06, MSS25C4MGZ08, MSS25C4MGZ09, MSS25N4MKZ04, MSS25N4MKZ09, MSS25N4MKZ10, MSS25N4MKZ11
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
Buy Online Pick Up In-Store
Address
101 Trillium Dr
Kitchener, Ontario N2E 1W8
Kitchener, Ontario N2E 1W8
Phone
Hours
Mon–Fri 9 AM–5 PM • Sat 9 AM–1 PM
