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

Unplug the unit before touching rear components.

• Check compressor mounts: Inspect the rubber grommets under the compressor. Replace any that are cracked or missing to reduce vibration.
• Secure tubing: Gently bend refrigerant lines away from cabinet walls and each other so they do not touch and rattle. Do not kink the tubing.
• Inspect fan and shroud: Tighten any loose screws on the condenser fan bracket and rear panel. Ensure the fan blade is not rubbing against the shroud.
• Add damping: Use foam pads or vibration-damping tape between metal panels that buzz.

If the compressor itself is internally noisy (knocking or grinding), it may be failing and should be evaluated by a refrigeration technician.