Wine cooler makes loud humming, buzzing, or rattling noises during operation.

Safety: Unplug the unit before adjusting internal components. Avoid contact with moving fan blades.

Steps:

• Level the unit: Use a spirit level and adjust the front leveling feet so the cooler is stable and does not rock.
• Check external vibration: Ensure the cooler is not touching walls, cabinets, or other appliances that can amplify noise.
• Inspect rear area: Remove the rear panel and check that copper tubing is not touching each other or the cabinet. Gently bend tubing away from contact points.
• Check fans: Inspect evaporator and condenser fans for debris or wires contacting the blades. Secure wiring with clips or ties.
• Compressor mounts: Verify that the rubber grommets under the compressor are intact and that mounting bolts are snug but not overtightened.