Loud humming, rattling, or vibrating noise during operation.

Unplug the unit before tightening hardware or touching moving parts.

• Level the cabinet: Use a bubble level and adjust the front leveling legs so the Luma cooler is stable and does not rock.
• Check for contact points: Ensure the cabinet is not touching walls or cabinets that can amplify vibration.
• Secure shelves and bottles: Reposition bottles so they do not touch the cabinet walls and ensure shelves are fully seated.
• Inspect fans and compressor: Remove the rear panel and check that the condenser fan and compressor mounting bolts are tight. Replace a noisy Luma condenser or evaporator fan motor if the noise clearly comes from the fan.