Kinetico electronic softener shows E05 and does not respond to button presses.

Safety first: Disconnect power before removing the display or keypad module.

• Dry the area: If there are signs of condensation or salt mist around the display, gently dry the surface and allow the unit to air dry for several hours with the cover removed (power off).
• Check ribbon cable: Remove the display bezel and inspect the ribbon cable connecting the keypad to the main PCB. Reseat both ends carefully, ensuring the locking tabs are engaged.
• Test buttons: Restore power and test each button. If only some buttons fail, the membrane keypad is likely damaged.
• Replace UI module: If no buttons respond and E05 remains, the complete display/keypad module usually needs replacement. This is typically a plug‑in part supplied by Kinetico UK.

Warning: Do not spray cleaners directly onto the display; use a damp cloth only. Liquids can migrate into the keypad and cause permanent damage.