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

Safety: Unplug the refrigerator before touching fans or moving the unit.

Steps to reduce noise:

• 1. Isolate the source: Listen carefully to determine if the noise comes from inside, back, or underneath.
• 2. Level the appliance: Adjust front leveling feet so the fridge is stable and does not rock. Use a spirit level if available.
• 3. Check rear components: Remove the rear cover and inspect the condenser fan. Tighten loose fan blades and ensure they do not hit wiring or shrouds.
• 4. Inspect internal fan: Inside the freezer, check the evaporator fan for ice or debris hitting the blades. Defrost and clean as needed.
• 5. Secure tubing: Gently bend refrigerant lines away from cabinet surfaces if they are touching and vibrating. Do not kink or sharply bend lines.
• 6. Remove items from top: Take heavy or loose items off the top of the fridge that may amplify vibrations.

When to call a technician: If noise is accompanied by poor cooling or burning smells, stop using the appliance and seek professional service.