Aero tool heads fan not turning on unless manually

Hey everyone I have a Taz 6 with the Aero titan toolhead using the archim 2.0 board. I cannot figure out why the cooling fan for it does not run unless I manually turn it on via the printer. When I load a new model to print it will not turn on when specified to. please help me haha

How did you get your fan to even turn on? Mine doesn’t come on even if I try manually.