Air fryer stops heating and displays E2 during preheat or cooking, fan may still run.

Safety first: Disconnect the air fryer from power and let it cool fully before inspection.

• Reset and cool down: If the unit was used for a long cycle, allow at least 30 minutes to cool, then plug back in and test. E2 can sometimes be triggered by extreme over-temperature.
• Inspect air vents: Make sure the rear and top vents are not blocked. Overheating from poor ventilation can damage the sensor wiring.
• Internal inspection (advanced users):
  • Remove the top cover to access the heater and sensor area.
  • Look for melted insulation or wires touching the metal heater frame.
  • Gently separate any wires that are touching hot metal and check for bare copper. If insulation is damaged, the sensor harness should be replaced.
• Sensor replacement: If the sensor body is cracked, charred, or reads near 0 Ω on a multimeter (shorted), it must be replaced with a compatible Tefal NTC sensor.
• Do not bypass: Never bypass or short the sensor to clear the error; this disables temperature safety and can cause fire.