Display briefly shows "Err" or "Error" and the unit beeps and stops.

Safety: Unplug the air fryer before extended troubleshooting.

Steps to handle generic "Err" messages:

• Basic reset: Unplug the unit for at least 10 minutes to allow capacitors to discharge. Plug back in and attempt a simple manual cook cycle.
• Check for other codes: Observe if a more specific code (E1–E10) appears after the initial "Err". If so, follow the procedure for that specific code.
• Inspect for obvious damage: Remove the bottom cover and look for burned components, loose connectors, or signs of liquid ingress on the control PCB.
• Surge protection: If the error began after a storm or power event, consider using a surge protector and inspect the internal fuse and power supply section.
• Control board replacement: If "Err" persists with no identifiable sensor or wiring issue, the main control PCB firmware or microcontroller may be corrupted. Replacement of the board is typically required.

Tip: Record when the error occurs (immediately at power-on, when starting heat, etc.) to help pinpoint whether the fault is power, sensor, or logic related.