Freezer makes loud rattling or vibrating noise, especially when compressor starts or stops.

Safety first: Ensure the freezer is stable before adjustments.

Steps:

• Level the freezer using the adjustable front feet so it does not rock.
• Check that all internal shelves and drawers are properly seated and not rattling.
• Access the rear and gently reposition any pipes or wiring that touch the cabinet, using foam pads or clips to isolate them.
• Tighten any loose screws on the compressor mounting bracket or rear panel.