Air fryer shuts off mid-cycle and will not resume until it cools down.

Safety first: Allow the unit to cool fully before touching the heater area. Unplug before cleaning or disassembly.

Step-by-step checks:

• Ventilation clearance: Ensure at least 4 inches (10 cm) of space around the air fryer and that top and rear vents are not blocked by walls, curtains, or other appliances.
• Clean vents and interior: Use a soft brush or vacuum to clear dust from external vents. Clean grease from the interior, especially near the heater and fan.
• Check fan performance: Confirm the fan runs strongly during operation. Weak airflow can cause localized overheating and trip the high-limit.
• High-limit thermostat: Inspect the thermostat for signs of heat damage. If it trips too early (at normal temperatures), it may be out of spec and require replacement.
• Test with lighter load: Run the unit empty or with a small load at moderate temperature. If it still shuts down prematurely, suspect the thermostat or control board.

When to stop: Repeated thermal shutdowns after cleaning and ensuring airflow indicate a failing thermostat or control board. Professional service is recommended.