Display shows a lid-related error (e.g., 'LID' or 'LID OPEN') and cooker will not start pressure programs.

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

• Check lid closure: Open and close the lid several times. Ensure it aligns with the body and the handle fully rotates to the locked position.
• Inspect lid lock: Look at the lid lock tab and mating slot on the cooker body. Remove any food debris or obstructions.
• Test lid switch: With the unit unplugged, locate the lid position switch inside the housing near the lid latch. Manually press the switch and listen for a click. If it does not click or feels loose, it may be faulty.
• Check wiring: Verify that the lid switch wires are firmly connected to the main board and not pinched or broken.
• Test with power: Plug in the cooker and gently press the lid switch (keeping hands clear of moving parts) to see if the error clears. If not, replace the lid switch or lid lock assembly.

Warning: Never bypass the lid safety switch; it prevents operation with an open lid.