Whynter Single-Zone Cooling Failure in Dual-Zone System

Dual-zone Whynter wine cooler: upper zone cools but lower zone is warm (or vice versa).

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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 evaporator fan in one zone, Blocked air channel between zones, Faulty zone temperature sensor, Zone-specific control relay failure

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing internal panels or wiring.

Steps:

  • Compare zones: Verify which zone is not cooling and note any error codes.
  • Check fan in affected zone: Remove shelves and interior panel for that zone. Confirm the evaporator fan runs when the compressor is on. Replace the fan motor if it does not run.
  • Inspect air channels: Ensure vents between zones are not blocked by bottles or ice.
  • Test zone sensor: Locate and test the thermistor for the affected zone. Replace if readings are out of range.

If fans and sensors are good but one zone still does not cool, the control board's zone relay or valve control may be faulty and require professional service.

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Repair Difficulty

Hard 4/5

Required Part

Zone Evaporator Fan Motor
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