Air fryer runs but does not heat; food remains cold or only slightly warm.

Safety: Unplug and allow the unit to cool before inspection.

• Confirm fan operation: If the fan runs but there is no heat, the issue is likely in the heater circuit.
• Visual check: Look at the heater coil through the top guard during operation (briefly). If it never glows red at high temperature, the element may be open.
• Access heater: Remove covers to reach the heater terminals and wiring.
• Check connections: Tighten any loose spade connectors and inspect for burnt or melted insulation. Replace damaged connectors with high-temperature-rated ones.
• Test heater resistance: Disconnect one heater lead and measure resistance. An open circuit indicates a failed heating element that must be replaced.
• Check thermal fuse: Locate the inline thermal fuse near the heater. Test continuity; replace if open with the correct temperature rating.
• Control PCB relay: If heater and fuse are good, the heater relay on the control PCB may not be switching. Replacement of the PCB is usually required.