I have the 440 and don't know if it's the same. When I press the button with the needle down, nothing happens, but when the needle goes back up it moves over. Also, I've heard that some machines won't move the needle over if the wrong presser foot is on, to avoid having the needle hit the presser foot when it comes down. My Bernina doesn't know what kind of presser foot is on, but maybe yours does.