Loud humming, rattling, or vibrating noise during operation

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

Steps:

• Level the cabinet: Use a spirit level and adjust the Transtherm leveling feet so the cabinet is stable and does not rock.
• Check for contact points: Ensure the cabinet is not touching walls, cabinets, or other appliances that can transmit vibration.
• Tighten panels and shelves: Tighten any loose screws on side panels, rear cover, and interior shelf supports. Ensure wooden shelves are seated firmly.
• Inspect fans: Listen near the rear and inside for noisy fan motors. Replace the condenser fan motor or evaporator fan motor if bearings are worn.
• Compressor mounts: Check that the compressor mounting grommets are intact and not hardened or missing. Replace compressor mounting grommets if necessary.

Note: Some low-level humming is normal, but loud or new noises should be investigated promptly.