Hisense Evaporator Temperature Sensor Short Circuit

Dehumidifier displays F4 and stops; may indicate incorrect coil temperature readings.

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

Shorted NTC sensor, Moisture causing short, Pinched sensor cable, Shorted connector at PCB

Safety first: Disconnect power.

Inspect sensor and wiring: Look for crushed or pinched wires near the evaporator coil or cabinet edges.
Dry moisture: If the sensor area is wet, dry thoroughly and allow time for moisture to evaporate.
Check connector: Clean any corrosion or debris from the sensor connector on the PCB.
Replace sensor: If the sensor measures near 0 Ω or shows visible damage, replace it.

Medium 3/5

Evaporator Temperature Sensor (NTC)

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