Loud humming or buzzing noise from the rear of the wine cooler during operation.

Safety first: Unplug the unit before adjusting components at the rear. Avoid bending refrigerant lines excessively.

Steps to reduce humming/buzzing:

• 1. Level the cabinet: Use a spirit level and adjust the front leveling feet so the cooler is stable and does not rock.
• 2. Check compressor mounts: Remove the rear panel and inspect the rubber grommets under the compressor. Tighten mounting bolts gently if loose, but do not overtighten.
• 3. Secure condenser coil: Ensure the condenser is firmly attached and not vibrating against the cabinet. Add foam pads or clips if necessary.
• 4. Isolate tubing: Look for copper tubes touching metal panels. Gently reposition them and insert foam or rubber spacers to prevent contact.
• 5. Reassemble and test: Replace the rear panel and run the unit to confirm noise reduction.