Dishwasher behaves erratically, random LEDs flashing, cycles not completing, and F09 may be logged or displayed.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Disconnect power before accessing the control board.
Basic reset:
- Turn off the dishwasher at the mains for at least 5 minutes to allow the control to fully discharge.
- Restore power and attempt to start a simple rinse cycle.
Check supply stability:
- Ensure the dishwasher is on a stable mains supply (avoid long extension leads or multi‑way adaptors).
- If possible, test the outlet with another high‑load appliance to confirm it does not drop out.
Control board replacement:
- If F09 reappears after a hard reset and wiring/power are sound, the control board’s memory is likely corrupted.
- On most Indesit models, the PCB is supplied pre‑programmed; swap like‑for‑like using the full model and service number.
Because EEPROM reprogramming requires manufacturer tools, the practical fix is PCB replacement by a competent person.
Repair Difficulty
Required Part
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