Rattling or vibrating noise, especially when the compressor starts or stops.

Safety: Unplug the refrigerator before tightening any components.

Steps:

• Level the refrigerator: Use a spirit level and adjust front feet until the unit is stable and does not rock.
• Check rear components: Ensure the rear cover, condenser coils, and drain pan are securely fastened.
• Secure tubing: Gently move refrigerant lines away from each other or from the cabinet if they are touching and rattling. Use foam sleeves or clips if needed.
• Rearrange contents: Inside, ensure glass shelves and bottles are not touching and causing noise.