Display shows 'PrE' or 'PREHEAT' for an unusually long time and may time out with an error.

Safety first: If steam is escaping, keep hands and face away from the vent. Unplug the cooker if necessary.

• Check steam release position: Ensure the steam release handle is set to the Sealing position, not Venting.
• Inspect sealing ring: Remove the silicone sealing ring from the lid. Check for cracks, deformation, or food residue. Clean thoroughly or replace if worn.
• Check float valve: Ensure the float valve moves freely and the small silicone cap is intact and seated properly.
• Verify liquid level: Open the lid (after pressure is released) and confirm there is enough liquid. Add more if needed.
• Test again: Reassemble the lid components, set the valve to Sealing, and run a short water test. If the unit still cannot reach pressure, inspect the lid for warping or damage and replace the sealing ring or lid assembly as needed.

Warning: Never force the lid open while the float valve is up or pressure remains inside.