Air fryer will not start and displays E1 on the control panel.

Safety first: Unplug the air fryer before removing any panels. Allow the unit to cool completely if it was recently used.

Steps to check the temperature sensor (NTC):

• 1. Power reset: Unplug the air fryer for 5–10 minutes, then plug it back in and try again. If E1 returns immediately, continue.
• 2. Access the sensor: Remove the basket and drawer. Turn the unit upside down on a soft surface. Remove the screws securing the bottom or rear cover (varies by model). Carefully lift the cover to expose the heating chamber and wiring.
• 3. Locate the NTC sensor: Find the small probe or bead-type sensor clipped near the heating element or air outlet, usually with two thin wires leading to the control board.
• 4. Check connections: Inspect the sensor plug where it connects to the main control PCB. Reseat the connector firmly. Look for broken, pinched, or burned wires.
• 5. Test the sensor (if you have a multimeter): Disconnect the sensor from the board and measure resistance at room temperature. Typical NTC sensors read between 50k–200k ohms at 25°C (check service data if available). An infinite reading indicates an open sensor; near 0 ohms indicates a short.
• 6. Replace if faulty: If the sensor is open/shorted or physically damaged, replace it with a compatible Black+Decker air fryer NTC temperature sensor. Route the new sensor wiring away from the heating element and secure it with high-temperature clips.
• 7. Inspect the control board: If the sensor tests good but E1 persists, inspect the main control PCB for burnt spots or corroded terminals. A failed board will usually require replacement of the main control PCB.

If you are not comfortable opening the unit or using a multimeter, contact a qualified appliance technician.