Refrigerator is not cooling at all, the interior light works, the compressor is not running, and there is no error code.

Safety first: Unplug the refrigerator and wait several minutes before accessing the compressor area.

Steps:

• 1. Listen for the compressor: When plugged in (for testing only), check if the compressor attempts to start (a brief hum then a click) or remains silent.
• 2. Access the compressor: Remove the rear lower cover to expose the compressor and start device.
• 3. Inspect the start relay and overload protector: Remove the plastic cover on the compressor terminals. Pull off the PTC relay and overload protector. Check for burn marks or rattling pieces.
• 4. Replace the start device set: If damaged, replace both the PTC relay and the overload protector with the correct V-ZUG compressor start kit.
• 5. Check wiring: Ensure all wires are firmly connected and not burnt.
• 6. If the compressor still does not start: The compressor itself or the main control board may be faulty. This requires professional diagnosis.

Warning: Do not bypass the overload protector; it is a critical safety device.