Safety first: Unplug the air fryer and let it cool for at least 30 minutes before inspection.

Steps to resolve:

Check ventilation: Ensure at least 10 cm clearance around the air fryer. Clean any dust or grease from the rear and bottom air vents. Do not operate the unit in a confined cabinet.
Clean heater area: Remove the basket and pan. Inspect the heater and upper cavity for heavy grease or food debris. Clean with a soft brush and a damp cloth (no abrasive pads). Allow to dry completely.
Inspect thermal cut-out: Access the heater assembly and locate the small disc-shaped thermal fuse or thermal cut-out mounted on the metal housing. Check for signs of overheating or discoloration.
Continuity test: With a multimeter, test the thermal fuse/cut-out for continuity. An open reading indicates it has tripped or failed and must be replaced with the exact Philips-rated part.
Sensor verification: If the thermal fuse is intact, test the NTC sensor for correct resistance at room temperature. Replace if readings are out of specification.

Warning: Never bypass a thermal fuse or cut-out. Always replace with a part of the same temperature rating and specification.

Display shows E3 during preheat or cooking; unit may shut off heating prematurely.

Possible Causes