Hey dhls, If you have no potentiometer counts through the analyser menu, i would check that the potentiometer, and connections are good. If they are I would suspect that you have broken wires in the handle harness. This is a very common problem and occurs often. I have seen broken wires in the cable as low as 250 hours of operation. Jack the machine off the ground and ohm out the 3 pot wires 1 by 1 from one end of the harness to the other and move the handle around as you do. If another harness is available you can connect it without actually installing it throught the handle to varifiy that the harness is actually the problem.