Electronic Kinetico water softener shows E01 on the display and will not initiate a regeneration cycle automatically.

Safety first: Isolate the softener from the mains supply (unplug or switch off fused spur) before removing any covers. Turn off the water supply and depressurise by opening a nearby tap.

• Power reset: Disconnect power for 5 minutes, then reconnect. If E01 clears and does not return, it may have been a transient fault.
• Check low‑voltage connections: Remove the top cover of the Kinetico electronic control head. Inspect the low‑voltage harness from the display/keypad module to the main control PCB. Reseat all plugs firmly and check for bent pins or corrosion.
• Inspect for moisture: Look for signs of water ingress around the control head, especially near the brine well and bypass manifold. Dry any moisture with a lint‑free cloth and allow the unit to air dry before re‑energising.
• Visual PCB inspection: With power still isolated, inspect the main control PCB for burn marks, swollen capacitors, or cracked solder joints. Do not touch components unnecessarily.
• Test operation: Restore power and attempt to start a manual regeneration from the keypad. If E01 reappears immediately, the control PCB or display module is likely defective and should be replaced by a qualified technician.

Warning: Do not work on live electronics. If you are not confident with electrical diagnostics, contact an authorised Kinetico UK service engineer.