Avanti
Upper Zone Cooling Failure in Dual-Zone System
Lower zone cools but upper zone is warm (dual-zone model).
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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 upper zone fan, Upper zone thermistor fault, Air duct blockage, Faulty upper zone control output
How to Fix / Troubleshooting
Safety: Disconnect power before removing panels.
- Verify temperature difference: Confirm that only the upper zone is failing to cool.
- Inspect upper zone fan and vents: Remove the upper interior rear panel and check the fan for operation and obstructions.
- Check thermistor: Test the upper zone thermistor resistance and compare to the lower zone sensor.
- Clear ducts: Ensure any shared ducts or vents are not blocked by shelves or bottles.
- Replace faulty components: Install an OEM Avanti upper zone fan motor or thermistor as needed. If these are good, replace the zone control or main control board.
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Repair Difficulty
Hard
4/5
Required Part
Upper Zone Evaporator Fan Motor
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