Display shows P1 and the unit will not start; often associated with unstable mains voltage.

Safety first: Unplug the air fryer before inspecting the cord or internal connections.

• Step 1 – Check power source: Plug the air fryer directly into a known-good wall outlet (no extension cords or power strips). Avoid sharing the circuit with high-draw appliances.
• Step 2 – Inspect power cord: Look for cuts, kinks, or burn marks. Replace the power cord set if damaged.
• Step 3 – Internal mains connector: Remove the rear cover and verify that the mains input connector is firmly attached to the control board or terminal block.
• Step 4 – Monitor voltage: If you have a multimeter and are qualified, measure the outlet voltage to ensure it matches the rating on the air fryer nameplate (e.g., 120 V or 230 V).
• Step 5 – Replace control board: If supply voltage is correct and connections are solid but P1 persists, the main control board voltage sensing circuit may be defective and should be replaced.

Warning: Do not operate the unit on generators or inverters that produce unstable voltage unless they are appropriately rated.