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

Safety warning: Unplug the unit before touching moving parts or metal tubing.

• Access rear compartment: Remove the rear panel to expose the compressor, condenser, and fan.
• Check fan area: Inspect the condenser fan for debris or bent blades. Remove any foreign objects and straighten blades gently if bent.
• Tighten hardware: Tighten loose screws on the fan bracket, condenser coil mounts, and compressor base.
• Isolate tubing: Look for copper lines touching the cabinet or each other. Gently bend them slightly apart and insert foam or rubber spacers to prevent contact.
• Inspect compressor mounts: If the compressor vibrates excessively, check the rubber grommets. Replace worn "Compressor mounting grommets" if available for your model.
• Reassemble and test: Replace the rear panel and listen for reduced noise.