KitchenAid Single-Zone Cooling Failure in Dual-Zone Unit

Wine cooler upper zone cools but lower zone is warm (dual-zone model)

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.

Possible Causes

Stuck or failed air damper, Blocked air channel to lower zone, Separate lower-zone evaporator fan failure, Faulty lower-zone thermistor

Safety: Unplug the unit before removing interior panels.

Step 1 – Check air vents: Ensure vents between zones are not blocked by bottles or shelves.
Step 2 – Inspect damper: Access the damper assembly between zones and verify it moves freely. Replace if stuck or broken.
Step 3 – Verify lower fan: If the lower zone has its own fan, test it for operation and replace if not running.
Step 4 – Replace lower thermistor: If the lower zone temperature reading is inaccurate, replace the lower-zone thermistor.

Medium 3/5

Air Damper / Lower-Zone Evaporator Fan

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