E9
Nuwave Internal Memory or EEPROM Fault

Display shows E9 and the Nuwave air fryer will not start or immediately aborts the cycle.

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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, failed microcontroller, voltage spike damage, manufacturing defect in control electronics

How to Fix / Troubleshooting

Safety First: Unplug the air fryer before any disassembly.

Step-by-step checks:

  • Basic reset: Unplug the unit for 15–20 minutes, then plug back in and attempt to power on. Sometimes a full power drain can clear transient memory errors.
  • Check environment: Ensure the unit is not exposed to extreme heat, moisture, or repeated power interruptions, which can stress control electronics.
  • Inspect control board (advanced): Remove the control panel and visually inspect the main control board for burnt ICs, cracked components, or signs of liquid damage.
  • Board replacement: E9 typically indicates an internal memory failure that is not field-repairable. Replace the Nuwave air fryer main control board with an identical part number.

Note: There is no safe way for end users to reprogram or repair the EEPROM or microcontroller on these boards. Replacement is the standard fix.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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