Freezer makes a loud banging or knocking noise when the compressor starts or stops.

Safety: Unplug the unit before working near the compressor.

• Access compressor area: Remove the rear lower panel to expose the compressor and mounting hardware.
• Check mounting bolts: Ensure the compressor mounting bolts are snug but not overtightened. The compressor should be secure but still cushioned by rubber grommets.
• Inspect grommets: Replace any cracked or missing rubber grommets with Samsung-compatible parts.
• Secure tubing: Gently reposition any refrigerant lines that may be striking the cabinet when the compressor moves. Add foam sleeves or clips as needed.
• Persistent knocking: If noise continues and appears internal to the compressor, the compressor may be failing and should be evaluated by a technician.