Steam release valve does not pop up or down smoothly; float valve sticks, causing delayed or no pressure release.

Safety first: Ensure the cooker is fully depressurized before disassembling the float valve.

• Disassemble float valve: Remove the float valve cap and pin according to the manual.
• Clean thoroughly: Soak the parts in warm soapy water, then rinse and dry. Clean the valve channel in the lid with a small brush.
• Inspect silicone cap: Replace the cap if it is swollen, cracked, or hardened.
• Reassemble and test: Refit the float valve and run a water-only pressure test to confirm smooth operation.