Float valve does not rise during pressure cooking, or remains stuck in the up position after cooking.

Safety first: Never force the float valve down while the cooker may still be under pressure.

• After cooling, clean valve: Remove the float valve cap and silicone seal (if removable). Clean all parts and the valve channel with warm soapy water, then rinse and dry.
• Check seal condition: Inspect the small silicone ring on the float for cracks or swelling. Replace if damaged.
• Descale: If you see white mineral deposits, soak the parts in a vinegar solution, then rinse.
• Test movement: Reassemble and press the float up and down from inside the lid to ensure smooth movement.