Refrigerator makes loud buzzing, humming, or rattling noises during operation.

Safety first: Unplug the refrigerator before touching moving parts or accessing rear panels.

Steps to resolve:

• Level the unit: Use a bubble level and adjust the front leveling legs so the refrigerator is solid and does not rock. Doors should close by themselves from halfway open.
• Check for external vibration: Ensure the refrigerator is not touching walls or cabinets that can amplify noise.
• Inspect rear components: Remove the rear lower panel and gently hold the condenser fan shroud, tubing, and wiring while the unit runs (use caution). If noise changes when you touch a component, secure it with foam or clips.
• Listen to fans: A grinding or squealing noise from inside the freezer or rear compartment often indicates a failing fan motor.

If noise persists and clearly comes from a fan or compressor, those components may need replacement by a technician.