Air fryer heats but never reaches set temperature; cooking is very slow or uneven.

Safety first: Unplug before inspecting seals or internal components.

• Verify load: Avoid overfilling the basket; large loads can prevent the unit from reaching temperature.
• Check door seal: Inspect the door gasket (on oven-style models) for gaps, tears, or compression. Replace if damaged.
• Test with thermometer: Use an oven thermometer placed in the basket to compare actual temperature to the setpoint. Large discrepancies suggest sensor or control issues.
• Clean sensor and heater: Grease on the sensor or heater can affect temperature readings. Clean the cavity ceiling and sensor area carefully.
• Replace sensor or board: If the element heats but temperature remains low, replace the NTC sensor first. If the issue persists, the main control board may need replacement.