Safety first: Unplug the cooker and allow it to cool before disassembling lid components.

Verify liquid level: Ensure you have at least the minimum required liquid for pressure cooking.
Check steam release position: Confirm the valve is set to "Sealing".
Clean float valve: Remove the float valve and its silicone gasket. Clean the valve and channel, then reinstall with the gasket correctly seated.
Inspect gasket: Replace the float valve gasket if it is cracked, hardened, or missing.

Float valve does not rise during pressure cooking; cooker never reaches full pressure.

Possible Causes