Panasonic Evaporator Temperature Sensor Error

Display shows F3; unit may stop during operation.

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

Failed evaporator thermistor, Sensor not in contact with coil, Broken sensor leads, Faulty PCB sensor circuit

Safety first: Unplug the unit.

Access evaporator: Remove front cover and filter to expose the evaporator coil and sensor.
Check sensor mounting: Ensure the thermistor is clipped to the coil. Reattach if loose.
Inspect and test: Examine wiring and measure resistance. Replace the thermistor if defective.
PCB diagnosis: If a new sensor does not clear F3, the main PCB may need replacement.

Medium 3/5

Evaporator Thermistor

Check Price on Amazon

We may earn a commission from links on this page.