Display shows E1 and cooking will not start or stops shortly after starting.

Safety first: Unplug the air fryer and let it cool completely for at least 30 minutes before opening any panels. Never work on the unit while it is connected to power.

Step-by-step checks:

• Power reset: Unplug the unit for 5–10 minutes, then plug back in and try a short cook cycle. If E1 returns immediately, continue below.
• Access the sensor: Remove the basket and drawer. Turn the unit upside down on a soft towel. Remove the screws securing the bottom cover (and rear cover if present). Carefully lift the cover to expose the heater assembly and wiring.
• Locate the NTC sensor: Find the small metal probe or bullet-shaped sensor clipped near the heating element or inside the air channel. It will have two thin wires going to the control board.
• Check the connector: Ensure the sensor plug is fully seated on the control board. Disconnect and reconnect it several times to clean light oxidation. Inspect for burnt or broken pins.
• Inspect the sensor wiring: Look for cuts, melted insulation, or broken wires along the harness from the sensor to the board. Repair minor insulation damage with high-temperature electrical tape; replace the harness if conductors are broken.
• Test continuity (for advanced users): With a multimeter set to resistance (ohms), measure across the two sensor leads. A typical NTC will show a finite resistance (often 50k–200kΩ at room temperature). If the meter reads OL (open) or 0Ω (short), the sensor is defective.
• Reassemble and test: Refit the covers, ensuring no wires are pinched. Plug in and run a preheat cycle. If E1 persists after sensor and wiring checks, the control board sensor circuit is likely faulty.

When to stop: If you see burnt areas on the PCB or are not comfortable using a meter, stop and contact a qualified appliance technician.