Refrigerator makes a loud humming or buzzing noise from the rear.

Safety first: Unplug the refrigerator before working at the rear.

Steps:

• 1. Pull the unit away from the wall: Ensure there is adequate clearance and that the cabinet is not touching the wall or other cabinets, which can amplify vibration.
• 2. Remove the rear cover: Access the condenser fan area.
• 3. Inspect the fan blades: Remove any dust, plastic, or wiring that may be contacting the blades.
• 4. Check the fan mounting: Tighten any loose screws or brackets holding the fan motor.
• 5. Spin test: Rotate the fan by hand. If it feels rough or wobbly, the motor bearings are likely worn.
• 6. Replace the condenser fan motor: Install the correct V-ZUG condenser fan motor and reassemble.

Warning: Do not operate the refrigerator with the rear cover removed for extended periods; proper airflow is required for safe operation.