Rattling or vibration noise from the lid area during pressure cooking.

Safety first: Do not touch the lid or vent while the cooker is under pressure.

• Observe from a distance: Some light rattling of the valve can be normal as pressure regulates. Loud or continuous rattling is not.
• After cooling, inspect valve: Remove the steam release valve and clean it. Ensure it seats firmly when reinstalled.
• Check anti-block shield: Make sure the shield under the lid is clipped in securely and not loose.
• Reseat gasket: Remove and reinstall the gasket to ensure even pressure around the lid.