Display shows E2 and the air fryer will not heat or shuts down quickly.

Safety first: Disconnect the Tower air fryer from power and let it cool fully. Never work on the unit while it is hot or plugged in.

• Allow full cool-down: If the unit was used heavily, let it sit for at least 30 minutes. Plug back in and test. If E2 clears, it may have been a temporary overheat.
• Access the sensor: Remove the rear or bottom cover to access the NTC sensor near the heater. Inspect the sensor body and wiring for signs of melting, charring, or crushed insulation.
• Clean and dry: If there is visible grease or moisture around the sensor or connector, gently clean with a dry cloth and allow to air dry completely. Do not use water inside the unit.
• Check for shorts: Ensure the sensor wires are not touching bare metal or each other where insulation is damaged. If they are, the sensor harness should be replaced.
• Test with a multimeter: Measure resistance across the sensor. A reading near 0Ω indicates a shorted sensor. Replace the sensor if shorted.
• Control board check: If the sensor and wiring appear normal but E2 persists, the control PCB may be misreading the sensor and should be replaced by a professional.