NEEDONE
Defrost System Failure
Excessive frost or ice buildup on the rear interior wall or around the evaporator.
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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, Open defrost thermostat, Faulty defrost control on main board, Door gasket leaking warm air
How to Fix / Troubleshooting
Safety first: Unplug the cooler and be cautious of sharp ice and metal edges.
- Manual defrost: Remove all bottles, unplug the unit, and leave the doors open until all ice has melted. Use towels to catch water; do not chip ice with sharp tools.
- Gasket inspection: Check the door gasket for tears, gaps, or warping. Replace if it does not seal evenly.
- Defrost components: After defrosting, remove the interior rear panel to access the evaporator. Inspect the defrost heater and thermostat for visible damage or loose wires.
- Replace faulty parts: If frost quickly returns, test and replace the defrost heater or thermostat with NEEDONE-compatible parts. If these are good, the main control board's defrost circuit may be defective.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Heater
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