E6 error appears during pressure cooking; cooker stops and releases steam.

Safety first: Allow the cooker to release pressure completely. Keep hands and face away from the steam path. Unplug the unit before cleaning.

Step-by-step checks:

• 1. Inspect steam release valve: Remove the valve cap and check for food particles, starch, or scale. Clean thoroughly with warm water and a brush. Ensure the valve moves freely.
• 2. Clean anti-block shield: Remove the metal or plastic shield on the underside of the lid (if present). Clean all holes and passages. Starch buildup here is a common cause of overpressure.
• 3. Check safety valve: Inspect the rubber or metal safety valve on the lid. Make sure it is not stuck, deformed, or blocked. Replace if swollen or cracked.
• 4. Avoid overfilling: For foamy foods (beans, porridge), do not fill above the recommended maximum line. Excess foam can block vents and cause E6.
• 5. Sensor and wiring (advanced): If mechanical parts are clean and E6 still appears, inspect the pressure sensor wiring and connector on the control board. A misreading sensor can falsely detect overpressure.

Warning: Never block or modify the steam release or safety valves. They are critical safety components.