Safety: Unplug the unit before removing the control panel.

Steps:

Clean surface: Wipe the control panel with a dry cloth to remove moisture or residue.
Access control panel: Remove screws and gently pull the panel forward. Inspect the keypad ribbon cable for damage and reseat it on the control board.
Dry moisture: If condensation is present inside the panel, allow it to dry completely before reassembly.
Replace keypad: If specific buttons still do not work, replace the control panel / user interface board.

Control panel buttons do not respond or respond intermittently; temperature cannot be adjusted.

Possible Causes