Antarctic Star Single-Zone Cooling Failure in Dual-Zone System

Dual-zone wine cooler has one zone cooling properly while the other zone is warm.

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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 zone-specific fan, Blocked air duct between zones, Faulty zone temperature sensor, Control board not activating zone damper or fan

How to Fix / Troubleshooting

Safety: Unplug the dual-zone cooler before accessing internal components.

  • Compare zones: Note which zone (upper or lower) is not cooling.
  • Check zone fan: Listen for fan operation in the affected zone. Access the interior panel and verify the zone fan motor runs when cooling is demanded. Replace if not operating.
  • Inspect air ducts: Ensure vents between zones are not blocked by bottles or shelves.
  • Test zone sensor: Measure resistance of the affected zone's temperature sensor and compare to the working zone. Replace if readings are abnormal.
  • Control board: If fan and sensor are good, the main control PCB may not be controlling that zone correctly and may need replacement.
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Repair Difficulty

Hard 4/5

Required Part

Zone Fan Motor
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