Whirlpool
Defrost System Failure or Air Leak
Excessive frost or ice buildup on the back wall or evaporator inside the wine cooler.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed defrost heater, Defective defrost thermistor, Door gasket leak allowing moist air in, Door frequently left open
How to Fix / Troubleshooting
Safety: Unplug the unit before defrosting or accessing electrical components.
Steps:
- Manual defrost: Remove all bottles, unplug the unit, and leave the door open until all ice melts. Use towels to absorb water.
- Inspect door gasket: Check for tears or gaps. Replace the Whirlpool-compatible gasket if damaged.
- Check door usage: Reduce the frequency and duration of door openings.
- Test defrost components (advanced): Access the evaporator and test the defrost heater and thermistor for continuity and proper resistance. Replace any failed parts.
- Control board: If heater and sensor are good but frost returns quickly, the control board may not be initiating defrost and may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Heater
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