Float valve does not rise during pressure cooking, or stays up after cooking is complete.

Safety first: Never force the lid open while the float valve is up. Assume the cooker is under pressure.

• Clean float valve: Disassemble the float valve according to the manual. Soak parts in warm soapy water and scrub gently.
• Descale if needed: If you see white mineral deposits, soak parts in a vinegar-water solution, then rinse and dry.
• Inspect silicone seal: Replace the small silicone ring if it is swollen, cracked, or hardened.
• Reassemble correctly: Ensure the float moves freely up and down when reinstalled.
• Test with water: Run a short pressure cycle with water only to confirm proper float operation.