Rattling or buzzing noise from the lid area when steam is released or during pressure cooking.

Safety first: Do not touch the valve while the cooker is under pressure. Wait until it cools and depressurizes.

• Clean valve assembly: Disassemble the pressure regulator and anti-block shield according to the manual. Clean all parts thoroughly and reassemble.
• Check for looseness: Ensure the valve cap is properly seated and tightened as specified.
• Inspect for wear: If the valve spring is weak or parts are visibly worn, replace the valve assembly.