Loud buzzing or humming noise from back of refrigerator, especially when compressor runs.

Safety: Unplug the refrigerator before working behind it.

• Access rear: Remove the lower rear panel to expose the condenser fan and compressor.
• Inspect fan: Check for debris in the fan blades and ensure they spin freely. Clean and straighten blades if bent.
• Secure tubing: Look for copper lines touching each other or the cabinet. Gently reposition and secure with foam or zip ties.
• Fan replacement: If the fan motor is noisy or loose, replace the condenser fan motor.
• Compressor noise: If the compressor itself is loud and vibrating excessively, professional evaluation is recommended; compressor replacement is a sealed system repair.