I have a montgomery hydro installed in 73 it is part of a duplex there is no controler or print number I can find. the car is sitting level with the bottom landing. The door opens when you press the call button at that floor, you get in the car and it will take car calls but won't go up. It runs in the up on inspection. I have cheaked the up normal limit it seems to be working fine. I dont have good print. Oh ya car will run in the down direction fine if I take it out of the bottom floor. Thanks in advance for any help.