Wine cooler not cooling at all; interior light works but temperature does not drop.

Safety: Unplug the unit before accessing the rear components.

• Check basic power: Verify the outlet has power by plugging in another device. Confirm the wine cooler’s power cord is intact.
• Listen for compressor: After plugging in, listen at the back. If you never hear a hum or vibration from the compressor, proceed to inspect the start device.
• Inspect start device: Remove the rear lower panel, then remove the plastic cover on the compressor terminals. Check the start relay/overload assembly for burn marks or rattling pieces. Replace the compressor start device if damaged.
• Test compressor windings: With the start device removed and the unit unplugged, measure resistance between compressor terminals. Infinite or zero readings indicate a failed compressor, requiring professional replacement.
• Control board: If the compressor and start device are good but the compressor never receives power, the main control board is likely faulty and should be replaced.