Display shows CF and the fan speed seems abnormal or the unit shuts off.

Safety first: Unplug the air fryer and allow it to cool before touching the fan area.

• Check for debris: Remove the basket and visually inspect the fan blades. Remove any stuck food, foil, or accessories blocking the fan.
• Manual spin test: Gently spin the fan with a wooden stick. It should rotate smoothly. Grinding or stiffness indicates worn bearings and the motor should be replaced.
• Inspect tach wire: Many fan motors have a third wire for speed feedback. Ensure this wire and connector are intact and firmly seated on the main control board.
• Replace fan motor: If the fan does not run at all or runs erratically and CF persists, replace the convection fan motor assembly.
• Board issue: If a new motor does not resolve CF, the fan speed sensing circuit on the main control board is likely defective and the board should be replaced.