Wine cooler is making a loud humming, rattling, or vibrating noise during operation.

Safety: Unplug the unit before adjusting internal components.

Steps:

• 1. Level the cooler: Use a spirit level and adjust the front leveling feet until the unit is stable and does not rock.
• 2. Reposition bottles: Ensure bottles are not tightly packed or touching the back wall; separate them slightly.
• 3. Tighten panels: Check interior and rear panels for loose screws. Tighten as needed.
• 4. Inspect fans: Access internal and rear fans and ensure they are not contacting wires or plastic shrouds. Secure any loose wiring with zip ties.
• 5. Isolate compressor vibration: On compressor models, verify that the compressor mounting grommets are intact. Replace worn rubber mounts if the compressor is rattling against the frame.