Wine cooler not cooling at all; interior is at room temperature and compressor is not running.

Safety first: Unplug the wine cooler and pull it away from the wall before removing the rear panel. Do not attempt sealed system (refrigerant) repairs yourself.

Steps to diagnose:

• 1. Confirm power: Verify the outlet has power using another appliance. Check the breaker and any GFCI outlets.
• 2. Listen for operation: With the unit plugged in, listen for any humming or clicking from the compressor area. Then unplug before opening the rear panel.
• 3. Access compressor compartment: Remove the lower rear panel to expose the compressor, start device, and control board.
• 4. Inspect start device: Remove the start relay/overload from the compressor. Look for burn marks or a burnt smell. Replace the start device if damaged.
• 5. Check wiring: Ensure all wires to the compressor and start device are firmly connected and not burnt or broken.
• 6. Control board check: If the start device and wiring appear good but the compressor never receives power, the main control board may be defective and should be replaced by a professional.

When to call a technician: If the compressor is receiving proper voltage but does not start, it may be locked or failed internally, requiring professional sealed system service.