Costway
No Cooling / Compressor or Peltier Not Running
Wine cooler not cooling at all; interior at room temperature, lights may work but no cooling.
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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 compressor start relay or overload, Defective Peltier module (thermoelectric models), Faulty main control board, Open thermal fuse in cooling circuit
How to Fix / Troubleshooting
Safety: Unplug the cooler before any disassembly. High voltage is present at the compressor and power board.
Steps:
- Listen for operation: Plug in briefly and listen. If the compressor does not hum and no fans run, suspect the control or power circuit.
- Check outlet and cord: Confirm the outlet works and the power cord is intact.
- Inspect control board: Remove rear panel and inspect the main control board for burned components. Replace if damaged.
- Test compressor start components (compressor models): With power off, test the PTC relay and overload protector for continuity. Replace if open or rattling.
- Test Peltier module (thermoelectric models): Check continuity across the Peltier module. Replace if open or physically damaged.
- Professional service: If the compressor windings are open or shorted, the compressor must be replaced by a professional.
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Repair Difficulty
Professional Required
5/5
Required Part
Compressor Start Relay
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