Safety: Unplug the wine cooler and wait several minutes before accessing the rear. High voltage is present when powered.

Steps:

Confirm symptoms: Listen for any humming or clicking from the compressor area when the unit is plugged in and calling for cooling. If completely silent, suspect control or wiring.
Access rear components: Remove the rear lower panel to expose the compressor, start relay, overload, and wiring.
Check wiring: Inspect the harness from the main PCB to the compressor for loose connectors or burnt wires. Reseat all plugs.
Test start relay/overload: Remove the relay/overload assembly from the compressor. Check for continuity through the overload and appropriate resistance through the PTC relay. Replace if open or physically damaged.
Control board output: With extreme caution and only if qualified, test for compressor voltage at the board output when cooling is requested. No voltage with correct inputs indicates a bad main PCB.
Replace faulty parts: Install a new Fagor compressor start relay/overload or main control board as indicated by tests.

Note: If you are not experienced with live voltage testing, contact a professional technician.

Wine cooler not cooling at all; interior light works but temperature does not drop and compressor is silent.

Possible Causes