Re: Does anyone have a flasher schematic?
my buses worked like this
when you activate the overhead lights and the door is closed the yellows come on until you open the door. Opening the door turns off the yellows and turns on the reds. Perhaps your problem is in the switch for the door, which is most likely located at the handle you use to pull the door closed (assuming you have a manual door) May also be the same switch that turns on the white light for your stairwell. (it's probably a double pole single throw switch)
Quis custodiet ipsos custodes (who will watch the watchmen?)