Safety first: Unplug the unit before removing the control panel.

Step 1 – Dry the panel: If the panel is damp from cleaning or condensation, gently dry it with a soft cloth and allow several hours for internal drying.
Step 2 – Inspect ribbon cable: Remove the control panel bezel and check that the ribbon cable is fully seated at both the keypad and main board ends.
Step 3 – Look for corrosion: Examine connectors and the keypad PCB for corrosion or residue. Light corrosion can sometimes be cleaned with isopropyl alcohol and a soft brush.
Step 4 – Replace keypad/UI board: If specific buttons never respond or the overlay is cracked, replace the entire user interface assembly with the correct AIRCARE part.
Step 5 – Avoid liquid cleaners: In the future, clean the panel with a lightly damp cloth only; do not spray cleaners directly onto the controls.

After replacement, verify that all buttons respond correctly and that the display updates as expected.

Humidifier or dehumidifier buttons are unresponsive or respond intermittently.

Possible Causes