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

Safety first: Unplug the air fryer from the wall outlet before any inspection. Allow the unit to cool completely.

Step-by-step checks:

• Power reset: Unplug the air fryer for 5 minutes, then plug it back in and try again. Sometimes E1 is a transient sensor reading error.
• Inspect sensor connector: Remove the outer housing (typically screws on the back and bottom). Locate the small probe or metal bulb inside the cooking cavity connected by two thin wires (the NTC sensor). Follow the wires to the main control PCB and ensure the plug is fully seated and not corroded or burnt.
• Check for broken wires: Visually inspect the sensor leads where they pass near the heater and fan. Look for melted insulation, cuts, or breaks. If damaged, the sensor assembly must be replaced.
• Test sensor continuity (for advanced users): Using a multimeter set to resistance (ohms), disconnect the sensor from the board and measure across the two sensor leads. A typical NTC will show a finite resistance (often 50k–200kΩ at room temperature). If the reading is infinite (open), the sensor is faulty.
• Inspect control board: If the sensor and wiring are intact, the sensor input circuit on the main control PCB may be defective. Look for burnt components or cracked solder joints. Replacement of the PCB is usually required rather than repair.

When to stop: If you are not comfortable opening the housing or using a multimeter, stop after the power reset and visual checks and contact an authorized Electrolux service center.