Air fryer overheats, burning food even at moderate settings.

Safety first: Unplug immediately if you suspect overheating. Allow full cool‑down before inspection.

• Check for error codes: Some models will show E2/E3 when overheating. If no code appears, proceed with caution.
• Inspect sensor mounting: Confirm the temperature sensor is still fixed in its bracket and not hanging away from the hot zone.
• Check wiring: Look for partially broken or heat‑damaged sensor wires that may cause intermittent readings.
• Test sensor resistance: Compare resistance at room temperature to the expected value from service data (or to a new sensor). Replace if out of range.
• Control board: If the sensor and wiring are correct but the heater remains on excessively, the control board's switching device may be stuck and the board should be replaced. Do not continue using an air fryer that overheats.