damn elevators, I tell you they have a mind of their own. I can't tell you how many times over the last 20 years of being a troubleshooter that a car will run fine all day long as you run the Crap out of it, only to break 10 minutes after you leave. I think i would not let the stepping inductor work, getting it out of step and sending to the top floor to see if it ends up in the finals. Im sure you guys have already checked out the M contactor thoroughly.