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

Safety: Unplug the wine cooler before accessing the rear compartment.

• Inspect condenser fan: Remove the rear panel and check the fan blade for contact with wires, insulation, or the shroud. Reposition wiring and straighten the shroud as needed.
• Secure tubing: Gently move refrigerant lines away from cabinet walls or each other and secure with foam or clips to reduce vibration noise.
• Check compressor mounts: Ensure rubber grommets under the compressor are intact and that mounting bolts are snug but not overtightened.
• Compressor evaluation: If the compressor itself is excessively loud or rattling, it may be failing internally. This requires professional sealed system service or replacement.