Safety first: Disconnect power and allow the unit to cool fully before inspection.

Diagnostic steps:

Reset and dry: Unplug for 10 minutes. If the unit was recently cleaned with excessive water or steam, allow it to dry for several hours and try again.
Access the sensor: Remove the housing to reach the heater area. Locate the NTC sensor clipped to the metal air channel or heater bracket.
Check for shorts: Look for melted insulation, bare wires touching metal, or moisture around the sensor and connector. Correct any pinched wiring and dry the area thoroughly.
Measure resistance: At room temperature, measure the NTC resistance. A reading near 0Ω indicates a shorted sensor. Replace the sensor harness if shorted.
Inspect PCB: If the sensor measures correctly but E2 persists, inspect the main control board for burn marks or corrosion at the sensor input. Replacement of the main control board may be required.

Warning: Do not operate the air fryer with a known sensor fault; overheating and fire risk are possible.

Air fryer stops heating; fan may run but display shows E2 and cooking cannot continue.

Possible Causes