E11 appears and the unit will not start; often associated with models that have built-in Wi‑Fi or smart features.

Safety first: Unplug the air fryer before any inspection. Power supply faults involve live mains voltage.

• Step 1 – Try a different outlet: Plug the unit directly into a different, dedicated outlet. Avoid extension cords and power strips.
• Step 2 – Check for other symptoms: Dim or flickering display, clicking sounds, or intermittent power loss all point to a power supply issue.
• Step 3 – Visual inspection (advanced): Remove the housing and inspect the control board. Look for bulging or leaking capacitors, burnt resistors, or discoloration near the power supply section.
• Step 4 – Do not attempt board-level repair unless qualified: Replacing individual power components requires electronics skills. Most repairs involve replacing the entire control board.
• Step 5 – Discontinue use: If E11 persists, stop using the unit and arrange for professional service or replacement.