Air fryer will not start; display shows E1 immediately after power-on or when pressing the start button.

Safety first: Unplug the air fryer from the mains before opening any covers. Allow the unit to cool completely.

Steps to check and address E1:

• Power reset: Unplug the fryer for 5–10 minutes, then plug back in and try again. Sometimes E1 is triggered by a transient fault.
• Inspect the sensor wiring: Remove the rear or bottom cover (depending on model). Locate the NTC temperature sensor near the heating element or in the air channel. Check for burnt, broken, or loose wires and connectors. Reseat any loose plug-in connectors firmly.
• Check sensor placement: Ensure the sensor tip is properly positioned in its metal clip or bracket and not touching bare heating coils. A dislodged sensor can read incorrectly and trigger E1.
• Basic continuity test (for experienced DIYers): With the unit unplugged, use a multimeter set to resistance (kΩ range) across the NTC sensor leads. A typical reading at room temperature is between 50kΩ and 200kΩ depending on model. An infinite reading indicates an open sensor; near 0Ω indicates a shorted sensor.
• Replace the sensor if defective: If readings are out of range or the sensor is physically damaged, replace it with a compatible SilverCrest NTC temperature sensor for your exact model.
• Control board check: If the sensor and wiring are good but E1 persists, the fault may be on the main control PCB (failed sensor input circuit). At this point, replacement of the PCB or professional service is recommended.

Warning: Do not bypass or short the temperature sensor to "trick" the control board. This can cause overheating and fire risk.