Display shows "noP" or similar, and the cooker fails to reach or maintain pressure; cooking time may not count down.

Safety first: Ensure the cooker is cool and depressurized before removing the lid.

• Check liquid level: Confirm that you have at least the minimum required liquid for pressure cooking. Add more if necessary.
• Inspect sealing ring: Remove the silicone sealing ring, clean it and the lid groove, and reinstall it evenly. Replace the ring if it is stretched, cracked, or hardened.
• Set valve to seal: Make sure the steam release valve is in the correct sealing position for pressure cooking.
• Clean float valve: Remove the float valve (if removable), clean its channel, and inspect the small silicone gasket for wear. Replace the gasket if it no longer seals tightly.
• Test with water only: Run a short pressure cycle with just water to verify that pressure can be achieved and maintained.

Warning: Do not cover or block the steam release valve to force pressure; this is unsafe and can damage the cooker.