Wine cooler displays F3 and may exhibit erratic temperature swings in one zone.

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

Mispositioned zone thermistor, Failed evaporator thermistor, Intermittent wiring connection, Control board logic error

Safety: Unplug the unit before removing panels.

Steps:

Check sensor placement: Ensure the zone thermistor is properly clipped to the evaporator or in its designated well, not hanging loose.
Inspect wiring: Look for intermittent connections or corrosion at the sensor plug and along the harness.
Test sensor: Measure resistance and compare to spec. Replace if readings are unstable or out of range.
Power reset: After repairs, power cycle the unit to clear the code. If F3 returns, the control board may need replacement.

Medium 3/5

Zone Evaporator Thermistor

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