Unusual loud humming, buzzing, or rattling noise from the refrigerator.

Safety first: Unplug the refrigerator before touching moving parts or accessing rear components.

Steps:

• 1. Level the appliance: Use a spirit level and adjust the front leveling feet so the unit is stable and slightly tilted back.
• 2. Check for external vibrations: Ensure the refrigerator is not touching walls or cabinets that can resonate.
• 3. Inspect condenser fan: Remove the rear cover and check that the fan shroud and motor are firmly mounted. Tighten any loose screws.
• 4. Internal fan noise: Open the freezer and listen for scraping or rattling when the fan runs. Remove any packaging or food items that may contact the fan housing.
• 5. Compressor mounts: Inspect rubber grommets under the compressor. If they are cracked or missing, have them replaced to reduce vibration.

Note: Some humming and occasional clicking are normal; focus on new or unusually loud noises.