ATC

Well its me again. Before i dig into the FSM, does anyone have ideas on ATC units.
When i had the heater core out i made sure the box was clean and all the doors and vacuum valves worked correctly. I bought a new 5 button control unit and replaced the fan motor. Now im just getting around to the ATC and dont have any idea why the fan wont come on. I dont hear the doors moving either so thats probably a vacuum problem.
Author: jmustian