E6 error appears and the cooker stops; often associated with lid or pressure issues.

Safety first: Unplug the cooker. Do not force the lid open if the unit may still be under pressure.

• Allow full depressurization: If the cooker was in a pressure program, wait until the float valve drops and no steam escapes when gently nudging the valve.
• Check lid lock movement: With the unit unplugged and cool, open and close the lid several times. Observe the lock pin (if visible) to see if it moves freely.
• Clean around lock: Food residue can jam the lock. Use a soft brush and damp cloth to clean around the lock pin and lid mechanism. Dry thoroughly.
• Power cycle: Plug back in and try a non-pressure program to see if the error clears and the lock operates normally.
• Advanced repair: If the lock solenoid or lid sensor is defective, the lid lock assembly should be replaced. This typically requires disassembling the lid and should be done by a qualified technician.