Air fryer will not power on at all; no lights, no beeps, completely dead.

Safety first: Unplug the air fryer before any inspection. Do not attempt live testing unless qualified.

Steps to diagnose a dead unit:

• 1. Verify outlet: Test the wall outlet with another appliance. Avoid using extension cords or power strips.
• 2. Inspect the power cord: Check for cuts, frays, or burn marks. If the cord is damaged, it must be replaced; do not tape or splice it.
• 3. Access the power entry: Remove the bottom or rear cover to locate where the cord connects to the terminal block or power board. Confirm all screws and connectors are tight.
• 4. Check the internal fuse (advanced): Locate the fuse on the power board (glass or ceramic). Remove it and test for continuity. If blown, replace with the same type and rating. If it blows again immediately, there is a deeper fault (shorted component).
• 5. Inspect the power board: Look for burnt components, cracked solder joints, or bulging capacitors. Any visible damage usually requires board replacement.
• 6. Replace the main control/power board: If the fuse and cord are good but the unit remains dead, replace the main control/power board assembly.

Warning: If the new fuse blows instantly, stop troubleshooting and seek professional service; there may be a dangerous short in the heater or wiring.