TCL Erratic Control / Ghost Touches

Dehumidifier turns on by itself or changes settings without input.

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

Moisture in control panel, Faulty touch keypad, Electrical noise or interference, Damaged control PCB

Safety: Unplug the unit before servicing.

Dry the panel: If the control panel has been exposed to moisture, allow it to dry completely. You may remove the panel and let it air dry for several hours.
Check for contamination: Inspect the keypad surface for cleaning residues or spills. Gently clean with a slightly damp cloth and dry thoroughly.
Inspect wiring: Ensure the control panel ribbon cable is not pinched or damaged.
Replace control panel: If erratic behavior continues, replace the control panel / touch keypad assembly.

Medium 3/5

Control Panel / Keypad PCB

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