Check the cylinder operated lock

  1. Open the door.
  2. Switch the multi-point lock to day mode.
  3. Turn and hold the key in the unlocking direction.
  4. Check that the main lock latch is fully retracted.
  5. Release the key.
  6. Check that the main lock latch is fully extended.
  7. Close the door.
  8. Open the door with the key.
  9. Check that the door opens smoothly.