Otis Hydro circa 1972---If car is in flight, in up direction, an open a hallway door to stop the car, it will keep going in leveling speed. I remember way back, an Otis guy had told me that there were some zener diodes in the up circuit that would make it do that. Any advice on where that diode would be? It just started doing this as the route tech found it on the monthly inspection.
