Safety: Unplug the unit before accessing the compressor compartment.

Confirm symptoms: Set the temperature to the coldest setting and listen for compressor start. If silent, proceed.
Check power and display: Ensure the unit is not in standby mode and that the display shows a set temperature.
Access compressor: Remove the rear lower panel to expose the compressor and electrical components.
Inspect start relay and overload: Remove the plastic cover on the compressor terminals. Check for burnt or loose components. Replace the start relay and overload protector if suspect.
Verify wiring: Ensure all connectors are firmly attached to the compressor and PCB.
Test run: Reassemble, restore power, and listen for compressor operation. If the compressor hums briefly then clicks off, it may be seized and require professional replacement.
Call technician: If replacing start components does not restore operation, a sealed system technician should evaluate the compressor.

Wine cooler not cooling at all; interior remains at room temperature, display appears normal, compressor not running.

Possible Causes