Rattling or vibration noises from the lid area during boiling or pressure cooking.

Safety first: Do not touch the lid or steam cap while the unit is hot or under pressure.

• Check steam cap fit: After cooling, remove and reinstall the steam cap, ensuring it locks firmly.
• Verify inner pressure cap: Confirm it is snapped into place and not wobbling.
• Inspect hinge screws: With the unit unplugged and cool, gently check hinge screws (if accessible) and tighten slightly if loose.

When to call a technician: If the lid remains loose or rattles excessively, the lid spring or hinge assembly may need replacement.