Air fryer stops heating and displays E2 shortly after starting a cooking cycle.

Safety: Unplug the appliance and let it cool fully before inspection.

• Visual inspection: Remove the rear or bottom cover to access the temperature sensor wiring. Look for melted insulation, bare wires touching, or signs of overheating near the heater housing.
• Check connector: Disconnect the sensor plug from the main PCB. Inspect for corrosion, moisture, or carbon tracking between pins. Dry thoroughly and clean with electrical contact cleaner if needed.
• Measure resistance: With the sensor unplugged, measure resistance across the sensor leads. A very low reading (near 0 Ω) indicates a shorted sensor. Replace the sensor assembly.
• Check harness routing: Ensure the sensor cable is not routed too close to the heating element or fan where insulation can melt. Re‑route and secure with high‑temp cable ties.
• PCB evaluation: If the sensor tests within spec and wiring is intact, but E2 remains, the main control PCB may be misreading the sensor and should be replaced.