Refrigerator making loud knocking, rattling, or buzzing noises during operation.

Safety: Unplug the refrigerator before touching moving parts or removing panels.

• Identify noise source: Listen carefully to determine if the noise comes from inside the cabinet, the rear, or the bottom.
• Level the unit: Adjust front leveling feet so the refrigerator is stable and does not rock. Slightly tilting back can help doors close and reduce vibration.
• Check interior fans: Open the freezer and listen. If noise changes when you open/close the door, the evaporator fan may be hitting ice or a loose panel. Remove ice buildup and secure panels.
• Inspect rear fan: At the back, check the condenser fan for debris or bent blades. Tighten any loose mounting screws.
• Compressor mounts: Ensure rubber grommets under the compressor are intact. If missing or deteriorated, have them replaced to reduce noise.
• Persistent loud knocking: If the compressor itself is knocking or grinding, it may be failing and should be evaluated by a technician.