Display shows H04 and the unit will not start or stops shortly after starting.

Safety first: Unplug the air fryer and let it cool.

• Check for foreign objects: Look through the top or rear grill for any loose foil, parchment, or food pieces stuck in the fan. Do not insert metal tools through the grill.
• Listen for fan noise: When you previously ran the unit, note if the fan was unusually loud, grinding, or not running at all. H04 often follows fan problems.
• Test briefly: Plug in and start a short cycle while listening closely. If the fan does not start or makes harsh noises, stop the unit immediately.
• Do not continue use: Running with a stalled fan can overheat the heater and electronics.

Warning: Accessing and replacing the fan motor requires opening the housing and working near mains wiring. If you are not trained, seek professional service.