Air fryer heats but takes much longer than normal to cook food; cannot reach set temperature.

Safety first: Unplug and cool before cleaning or disassembly.

Steps:

• Check loading: Avoid overfilling the basket. Large loads or dense foods require more time.
• Clean heater and fan: Remove the basket and carefully clean the heater guard and surrounding area to remove grease and carbon buildup that insulates the element.
• Test outlet: If possible, measure voltage at the outlet or try another circuit. Low voltage can reduce heating performance.
• Inspect element: Look for dark, pitted areas on the element that may indicate partial failure. If one section does not glow (on models where the element is visible), replace the element.
• Relay and wiring: Check heater relay and wiring for signs of overheating. Replace the main PCB if relay contacts are burnt.