Display shows a lid-related message (e.g., “LID”, “LID OPEN”) and cooker will not start.

Safety first: Ensure the cooker is unplugged while cleaning or inspecting the lid.

• Close lid firmly: Open and close the lid several times, pressing down gently while turning to lock. Confirm that the lid is aligned with the lock marks.
• Clean lid rim and body: Wipe the lid rim and the top edge of the cooker body with a damp cloth to remove food residue that may prevent full closure.
• Check gasket seating: Ensure the silicone lid gasket is fully seated and not twisted, which can keep the lid from closing completely.
• Test non-pressure mode: Some models allow Sauté with the lid open. Try Sauté; if it works but pressure modes still show LID, the lid open sensor may be faulty.

If the message persists with a clearly closed lid, the lid sensor or lid switch likely needs replacement.