I am putting together and older regency and on the left side is a metal lever that somehow hits a cutoff fan switch. The fan only runs when the switch is pushed in. I cannot figure out how to put the metal lever on though. I think that it has something to do with the damper control because it is on that side and there is a metal plate attached to the damper bar. I can get pics up later but I hope someone knows about this or has an older diagram.