Safety first: Disconnect power before removing the front panel.

Inspect keypad surface: Check for cracks, wear, or signs of liquid spills on the keypad.
Check ribbon cable: Reseat the keypad ribbon cable on the display or control board. Ensure it is fully inserted and locked.
Dry moisture: If moisture is visible, carefully dry the area and allow time for complete evaporation before reassembly.
Replace keypad: If specific buttons never respond, replace the Judo keypad / front panel assembly.

Buttons on the Judo softener control panel do not respond or respond erratically

Possible Causes