Wine cooler makes loud humming or buzzing noise during operation.

Safety: Unplug the unit before tightening components or accessing fans.

Steps:

• Level the appliance: Use a bubble level and adjust the front leveling legs so the cooler is stable and does not rock.
• Check for cabinet contact: Ensure the cabinet is not touching walls or cabinets that can amplify vibration.
• Inspect compressor mounts: Remove the rear panel and verify that the compressor mounting grommets are intact and bolts are snug (do not overtighten).
• Check fans: Inspect condenser and evaporator fans for loose blades or mounting screws. Tighten as needed.
• Isolate rattles: Gently press on panels while the unit is running to identify and dampen rattling areas with foam tape or shims.