@droftarts hi, I have already check and it work properly (check from VIN to both fuse leg)

Hi, recently my fans are not working on my Duet2 wifi board. I check the continuity between VIN and VIN on the jumper selection under fans connectors and they are not connect to each other.

Can I solder a wire between this 2 points? And Am I still be able to control the fan speed?

Thank you.