Loud humming or buzzing noise from the back of the wine cooler.

Safety: Unplug the cooler before touching any moving parts.

• Access rear compartment: Remove the rear lower panel to expose the compressor and condenser fan.
• Inspect fan: Remove any debris from the fan blades. Ensure the blades are not rubbing against shrouds or wires. Bend or reposition obstructions.
• Check fan bearings: Spin the fan by hand; if it feels rough or noisy, replace the "Condenser fan motor".
• Inspect compressor mounts: Ensure rubber grommets are intact and the compressor is not touching the frame directly. Replace worn grommets.
• Secure tubing: If copper lines vibrate against the cabinet, gently bend them away and secure with foam or clips.