Wine cooler not cooling at all, interior warm, display may be on but temperature does not drop

Safety: Unplug the wine cooler before removing rear panels. Compressor and electrical components can be hot and live.

Basic checks:

• Verify power: Confirm the outlet works and the unit is switched on. Check for tripped breakers.
• Listen for compressor: After plugging in, listen at the back for a low humming sound. No sound at all may indicate a control or start device issue.
• Check condenser fan: If equipped, the condenser fan should run when the compressor runs. If the fan is off while the compressor hums, test and replace the fan motor.
• Inspect control board and start device: Remove the rear access panel and look for burnt components on the main PCB or a damaged compressor start relay/overload. Replace any visibly failed parts with Bosch-approved components.

When to call a professional: If the compressor is not starting or runs but there is no cooling, a sealed-system or compressor failure is likely. This requires a Bosch-authorized refrigeration technician.