Rattling or clanking noise when the compressor starts or stops.

Safety: Unplug the unit before tightening any fasteners.

• Check internal items: Ensure shelves are properly seated and bottles are not excessively touching the cabinet walls or each other.
• Inspect rear components: Tighten any loose screws on the condenser frame, fan shroud, or compressor mounting plate.
• Compressor mounts: Verify that rubber mounts are not cracked or missing. Replace them if necessary.
• If noise is internal to compressor: Some clicking is normal, but loud clanking may indicate internal wear. Continued operation is usually safe but the noise may worsen; compressor replacement would require a technician.