TCL Low Humidity Sensor Reading / Sensor Fault

Dehumidifier displays H2 and may shut down or ignore humidity settings.

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 humidity sensor, Moisture on sensor, Damaged sensor wiring, Faulty main PCB

Safety: Unplug the unit before servicing.

Dry the sensor: If the unit was exposed to condensation or water, allow the sensor area to dry completely.
Inspect wiring: Check the humidity sensor harness for shorts or damage.
Replace sensor: Install a new TCL-compatible humidity sensor if H2 persists.
Check PCB: If a new sensor does not resolve H2, the main control board may be defective.

Medium 3/5

Humidity Sensor Assembly

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