Refrigerator makes loud rattling or vibrating noise, especially when the condenser fan runs.

Safety first: Unplug the refrigerator before tightening screws or moving components.

Steps:

• 1. Check external causes: Ensure the refrigerator is not touching the wall or cabinets and that items on top are not vibrating.
• 2. Tighten rear panel: Remove and reinstall the rear access panel, tightening all screws securely.
• 3. Inspect drain pan: Make sure the drain pan under the unit is seated properly and not rattling. Add a small piece of foam between the pan and frame if needed.
• 4. Secure condenser coil: Ensure the condenser coil is firmly mounted and not vibrating against the frame.