Loud humming, rattling, or vibrating noise during operation.

Safety: Unplug the unit before bending tubing or tightening components.

• Level the cooler: Adjust the front leveling feet so the cabinet is stable and does not rock.
• Check rear components: Remove the rear panel and ensure the condenser fan motor, compressor, and drain pan are securely mounted and not touching the cabinet walls.
• Secure tubing: Gently bend any copper refrigerant lines away from metal surfaces and secure with foam sleeves or clips to prevent rattling.
• Tighten interior parts: Tighten loose shelf supports, interior panels, and bottle racks that may vibrate.