V-ZUG Compressor Start Device / Overload Failure

Refrigerator not cooling at all, interior light works, compressor not running, no error code

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed PTC start relay on compressor,Open overload protector,Loose wiring at compressor terminals,Main control board not sending start signal

How to Fix / Troubleshooting

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

Steps:

  • 1. Listen for compressor: When plugged in (for testing only), check if the compressor attempts to start (brief hum then click) or remains silent.
  • 2. Access compressor: Remove the rear lower cover to expose the compressor and start device.
  • 3. Inspect start relay and overload: 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 start device set: If damaged, replace both the PTC relay and overload protector with the correct V-ZUG compressor start kit.
  • 5. Check wiring: Ensure all wires are firmly connected and not burnt.
  • 6. If 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.

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Repair Difficulty

Hard 4/5

Required Part

Compressor Start Relay and Overload Protector
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