E11 error appears during cooking, often accompanied by continuous beeping and immediate pressure release.

Safety first: Allow the cooker to release pressure completely and cool down. Unplug before disassembling any parts.

• Clean anti-block shield: Remove the anti-block shield from the underside of the lid and clean all small holes and channels thoroughly.
• Inspect float valve movement: Ensure the float valve can move freely up and down. Clean any dried food or starch buildup and replace the silicone cap if it is sticky or deformed.
• Check safety valve: Inspect the safety valve (often a separate metal or silicone plug) for signs of deformation or blockage. Replace if it appears damaged.
• Avoid overfilling: For foaming foods, do not fill above the recommended maximum line and consider using a lower pressure or a different program.
• Test with non-foaming load: Run a pressure cycle with water only. If E11 recurs, the pressure control system or safety valve assembly may be faulty and should be replaced.