Rattling or vibrating noise, especially when the compressor starts or stops.

Safety: Minimal risk; unplug only if removing panels.

• Level unit: Adjust front leveling legs so the refrigerator is stable and slightly tilted back.
• Check panels: Tighten screws on the rear access panel and any loose brackets.
• Inspect interior: Ensure glass shelves and bins are seated properly and not rattling.
• Clear surroundings: Move the refrigerator slightly away from the wall and ensure no objects are touching the cabinet.