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

Safety first: Unplug the refrigerator before touching moving parts or metal tubing.

Steps:

• Pull the unit away from the wall and check that all rear panels and brackets are tight.
• Inspect the condenser fan for loose mounting or blades hitting shrouds; tighten screws and reposition as needed.
• Inside the freezer, check for ice contacting the evaporator fan and clear any buildup.
• Gently separate any copper lines that are touching each other or the cabinet using foam sleeves or clips.

Corrective action: Replace worn compressor mounting grommets if the compressor is excessively noisy or vibrating.