Ice maker is very noisy during operation (rattling, grinding, or loud humming).

Safety first: Disconnect power before tightening or adjusting components. Keep hands clear of moving parts when testing.

Steps:

• Check for loose panels: Tighten screws on front, side, and top panels. Add foam or rubber shims where metal vibrates against the frame.
• Inspect condenser fan: Spin the fan blade by hand. If it wobbles, scrapes, or feels rough, replace the condenser fan motor and blade.
• Look for ice interference: Ensure no ice buildup is contacting the fan or other moving parts. Remove any obstructions and address the cause (usually poor drainage or air leaks).
• Evaluate compressor noise: A loud, knocking, or grinding compressor often indicates internal failure. This requires a refrigeration technician for diagnosis and replacement.