Dehumidifier shows F3 and may not defrost properly or may shut down.

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 NTC sensor, Loose sensor clip, Damaged sensor wiring, Faulty connector at main PCB

Safety: Unplug the unit before opening the cabinet.

Access evaporator: Remove front cover and filter to expose the evaporator coil.
Locate sensor: Find the sensor clipped to the evaporator tubing or fins. Ensure it is firmly attached.
Inspect and test: Check for damaged wires. Measure resistance and compare to specification. Replace the sensor if readings are abnormal.
Secure routing: Route the new sensor wires away from the fan and sharp metal edges, securing with cable ties.

Medium 3/5

Evaporator Temperature Sensor (NTC Probe)

Check Price on Amazon

We may earn a commission from links on this page.