E12 is displayed and the cooker stops heating; may occur when using high-temperature frying or sauté programs.

Safety first: Disconnect power and allow the cooker to cool fully.

• Clean cooking chamber: Remove the inner pot and clean the heating plate and surrounding area to remove any burnt-on grease or food that may cause localized overheating.
• Check pot bottom: Ensure the inner pot bottom is clean, flat, and free from heavy carbon deposits. Clean with a non-abrasive pad.
• Inspect high-temp sensor: Some AEG models have a separate high-temperature sensor near the heating plate. Verify it is firmly attached and not covered by debris.
• Test sensor: Measure the resistance of the high-temperature sensor at room temperature and compare with specifications or with the main NTC. Replace if readings are out of range.
• PCB evaluation: If sensors and surfaces are clean and E12 persists, the main PCB's temperature measurement circuit may be faulty and require replacement.