Display shows 'Lid' or 'Lid' icon and cooker will not start pressure program.

Safety first: Ensure the cooker is unplugged while inspecting mechanical parts.

• Check lid closure: Verify the lid is aligned with the mark on the cooker base and turned fully to the closed/lock position until it stops.
• Inspect lid locking pin: Look at the metal or plastic locking pin on the lid and the corresponding slot on the cooker body. Clean any food residue that may prevent full engagement.
• Test lid switch: Gently open and close the lid while watching the display. If the 'Lid' message does not change, the lid switch or magnetic sensor may be faulty.
• Clean around switch area: Wipe the rim and top of the cooker body where the lid engages. Dried food can prevent the lid from seating properly.
• Component replacement: If the lid is mechanically closing but the cooker still reports 'Lid', replace the lid switch assembly or lid sensor/magnet assembly depending on model design.