Fans strange behavior.

so i have tryed to get controll of my part and hotend fans, when the controls are at 100 then they wont spin and at 0 they do spin, its 2 pin fans on a Btt V1.0 board and i have now installed latest version of RatOs, printer worked just fine before updating system.
and there are no mentioning of fans/cooling in Print.cfg so where can i change behavior of fans now?