E9
T-fal
EEPROM / Firmware Corruption Error
E9 error code appears and the unit will not start; sometimes occurs after a power surge.
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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 firmware in microcontroller, Failed EEPROM memory chip, Voltage spike damaging control logic, Manufacturing firmware defect
How to Fix / Troubleshooting
Safety first: Unplug the air fryer before any disassembly.
Basic reset attempts:
- Unplug the unit for at least 15 minutes to allow capacitors to discharge.
- Plug back in and attempt to power on while holding a combination of keys (e.g., Power + Start) if your T-fal model supports a factory reset (consult the user manual).
If E9 persists:
- This error typically indicates a non-recoverable fault in the control board’s memory.
- Inspect the main control PCB for obvious damage, but in most cases the board will appear normal.
- The practical repair is to replace the main control board assembly with a new, pre-programmed unit compatible with your T-fal air fryer model.
Firmware reprogramming at home is generally not supported for consumer T-fal air fryers; board replacement is the standard remedy.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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