Just had the same problem, I took the top Control panel off and noticed that there is a clear plastic tube that runs from somewhere near the bottom of the machine up to the control dial that operates the level, I just connected it back together and it worked fine, hopefull your problem is as easy as that. If your not sure how to take the panel off, on either end of the panel there is a end peice that just snaps off, unscrew the screws and the panel just flips open, you should see the tube straight away.
Mike, January 2008
