Lid does not lock properly; cooker refuses to start pressure programs.

Safety first: Do not attempt to bypass the lid lock; this is a critical safety feature.

• Inspect for debris: Check the lock slot and hook for rice grains or dried food. Clean carefully with a soft brush.
• Check hinge alignment: Open and close the lid to see if it sits evenly. If the hinge is loose, tighten accessible screws.
• Test lock movement: With the cooker unplugged, observe the lock hook as you close the lid. It should move freely into place.
• Replace lock assembly: If the hook is broken or worn, the lid lock assembly must be replaced with a Philips-compatible part by a technician.