I have a similar problem with my Cylinda 12000 in that it gets to position 4 after beginning the cycle on 3 and stays washing there, but if I move the knob on slightly it continues normally (rinsing, spinning etc.). Changing the (very expensive!) timer made no difference. It's been suggested to me that the inlet valve solenoids may be at fault, but I've yet to check. I know this is a very late reply, but it may be useful to someone. Yes, it is a brilliant machine. I bought mine in late 1989.
Roger, July 2009