I have a NH T5.120 it has an electronic joystick. It will not work to raise the front end loader unless I engage one of the other remotes. The light on the dash lights up to show that I am asking it to work but it is like it will not activate the pump unless it is already loaded. So I can make it it work by leaving one of the remotes locked on but that is putting an unnecessary load on the tractor. Has anyone else seen this before?