Air fryer powers on but shuts off randomly during cooking without any error code.

Safety first: Unplug the unit and let it cool before inspection. Repeated overheating can damage internal components.

Steps to address random shut‑offs:

• Ventilation check: Ensure the air fryer has adequate clearance on all sides and is not placed under low cabinets where heat accumulates. Clean dust from intake and exhaust vents.
• Clean interior: Remove grease buildup around the heater and fan shroud which can trap heat. Use a soft brush and damp cloth.
• Inspect safety thermostat: Access the high‑limit thermostat on the heater housing. Check for signs of overheating or loose mounting. A thermostat that cycles too early may need replacement.
• Check internal connections: Inspect the power cord connections, terminal block, and board connectors for looseness that could cause intermittent power loss.
• Control board replacement: If all mechanical and thermal components are sound, the control PCB may be shutting down due to internal faults and should be replaced.

Warning: Do not cover vents or operate the air fryer inside cabinets. This can cause dangerous overheating.