Air fryer powers on but shows E6 and does not respond to temperature or time settings.

Safety first: Unplug the air fryer before opening the housing. Static discharge can damage electronics; ground yourself before touching PCBs.

• Power cycle: Unplug for 10–15 minutes to allow capacitors to discharge, then reconnect and test. This can clear minor firmware lockups.
• Inspect ribbon cable: Remove the front or top cover to access the control panel. Locate the flat ribbon cable or multi‑wire harness connecting the touch panel to the main PCB. Ensure it is fully inserted and the locking tabs are engaged.
• Clean connectors: Gently disconnect the ribbon and inspect for oxidation or contamination. Clean contacts with isopropyl alcohol and a lint‑free swab, then reconnect firmly.
• Check for cracks: Examine the touch PCB for hairline cracks, especially near mounting screws or where the ribbon attaches. A cracked board usually requires replacement.
• Firmware reset (if documented): Some Severin models support a key combination reset (e.g., holding specific buttons while plugging in). Refer to the service or user manual; perform the reset if available.

Warning: If the main control PCB is suspected faulty, replacement is safer than attempting component‑level repair unless you are an experienced electronics technician.