AEG air fryer powers on but will not start cooking; pressing Start does nothing and no error code is shown.

Safety first: Disconnect from mains before opening the housing.

Troubleshooting steps:

• Confirm basket position: Remove and reinsert the basket firmly until it clicks. Ensure no foreign objects are preventing full closure.
• Check for child lock: Some AEG models have a child lock function. Refer to the user manual to disable it (often by holding a specific button combination).
• Test Start button: Try other buttons; if none respond, suspect the touch panel. If only Start is unresponsive, the Start pad or its trace may be damaged, requiring touch control panel replacement.
• Inspect basket switch: Access the basket detection microswitch and test continuity while inserting/removing the basket. Replace the switch if it does not change state.
• Power reset: Unplug for 10–15 minutes to reset the control board. If the issue persists, the main PCB may have a logic fault.