Display shows 'LID' or a lid icon and the cooker refuses to start pressure or cooking programs.

Safety first: Ensure the cooker is unplugged before mechanical adjustments.

• Check lid closure: Open and close the lid firmly. Listen for the click of the lock engaging.
• Inspect lock mechanism: Examine the lock hook and slot for food debris or damage. Clean with a brush and warm soapy water.
• Test lock movement: With the unit unplugged, manually move the lock (if accessible) to ensure it travels freely.
• Internal lock sensor: Remove the top cover to access the lid lock sensor or microswitch. Check for loose screws or misalignment and adjust so the lock fully actuates the switch.
• Replace faulty lock: If the lock is cracked or the sensor does not click reliably, replace the lid lock assembly with a Hisense-compatible part.