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

Safety first: Unplug the refrigerator before touching fans or internal components.

Steps:

• Level the unit: Use a level on top of the refrigerator. Adjust front leveling legs so the unit is stable and slightly tilted back to help doors close.
• Check rear components: Remove the rear lower panel and ensure the condenser fan shroud and drain pan are secure. Tighten any loose screws.
• Inspect evaporator fan: Remove the freezer rear panel and check if the fan blade is hitting ice or wiring. Clear ice and reposition wires away from the blade.
• Secure tubing: Gently move refrigerant lines and listen for changes in noise. Use foam sleeves or clips to prevent lines from vibrating against the cabinet.