Freezer is making a loud humming or buzzing noise from the rear, louder than usual operation.

Safety first: Unplug the freezer before adjusting components at the rear.

• 1. Level the freezer: Ensure the appliance is level front-to-back and side-to-side using the adjustable feet. An unlevel unit can increase vibration noise.
• 2. Check compressor mounts: Inspect the rubber grommets under the compressor. Replace any that are cracked or missing to reduce vibration transfer.
• 3. Secure tubing: Gently bend refrigerant lines away from cabinet walls if they are touching and rattling. Do not kink or sharply bend the tubes.
• 4. Tighten panels: Tighten screws on the rear cover and condenser brackets to eliminate rattles.
• 5. Evaluate compressor: If the compressor itself is excessively loud or knocking, it may be failing internally. Continued operation is possible but may lead to eventual failure; consult a technician for replacement options.