Wine cooler makes loud humming or buzzing noise from the rear while running.

Safety: Unplug the unit before adjusting components at the rear. Beware of hot compressor surfaces.

Steps:

• 1. Level the unit: Use a level to ensure the wine cooler is stable on all four feet. Adjust leveling legs to eliminate rocking.
• 2. Check rear panel: Ensure the rear access panel is securely fastened and not vibrating against the frame.
• 3. Inspect condenser fan: Remove the rear panel and observe the fan while running (briefly, with caution). Make sure the blade is not rubbing on the shroud or wires. Adjust or secure as needed.
• 4. Secure refrigerant lines: Look for copper lines touching each other or the cabinet. Gently bend or pad them with foam to prevent rattling.
• 5. Compressor mounts: Check that the compressor mounting grommets are intact and that the compressor is not contacting the base directly. Replace worn grommets if necessary.