the smart effector is original duet and the problem is there. the card was on another printer and never had problems
I think the fan0 connector failed because you wired the fan backwards. If you want to fix it, try replacing the MOSFET. See https://docs.duet3d.com/en/User_manual/Troubleshooting/Parts#fan-mosfet
I think you should also check the plug on the Smart Effector that connects to the Duet 2 board. These pins look like they are not fully inserted into the housing. There also looks like there might be some wires poking out, that may cause a short.
9178fd43-e865-41a2-a068-e377984f2959-image.png
you had region on fan 2 everything works. thanks for all the support
Great, glad you got it working. Please check the above.
Ian