Display shows LID or a flashing lid icon and the cooker will not start pressure or high‑temperature programs.

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

• Close lid firmly: Open and close the lid several times, pressing down firmly until you hear a clear click. On models with a sliding lock, move it fully to the lock symbol.
• Inspect locking pin: Check the metal or plastic pin on the lid that engages the body. Make sure it is not bent, sticky, or obstructed by dried food. Clean with a damp cloth and dry.
• Check lid lock slot: Look at the slot or hole in the cooker body where the pin enters. Remove any debris that might prevent full engagement.
• Test other modes: Some Brock models allow non-pressure modes (e.g., SAUTÉ) with the lid open. If these work but pressure modes show LID, the lid lock switch is likely faulty.
• Service note: Replacing the lid lock switch or latch assembly involves disassembling the top housing. Have this done by a professional to maintain pressure safety.