F09
Hotpoint-Ariston
EEPROM / Software Configuration Error
Dryer behaves erratically, random cycle times, F09 displayed, may not start or may stop unexpectedly.
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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.
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Possible Causes
Corrupted EEPROM on main control board, Incorrect configuration data, Power surge or brownout damage, Faulty main control module
How to Fix / Troubleshooting
Safety first: Disconnect the dryer from mains before accessing internal components.
- Power reset: Unplug the dryer for 15–20 minutes to allow capacitors to discharge and the control to fully reset. Reconnect and test.
- Check supply quality: Ensure the dryer is connected to a stable power source. Avoid extension leads or multi-plug adapters that can cause voltage drops.
- Factory reset (if available): Consult the user manual for any key combination that performs a factory reset of the control. Apply and retest.
- Board replacement: If F09 persists, the EEPROM or microcontroller on the main board is likely faulty. Replace the main control board with a pre-programmed Hotpoint-Ariston module for your exact model.
Note: EEPROM reprogramming typically requires manufacturer tools and is not a DIY procedure.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (EEPROM)
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