Fans not working

[chimaeragh]

I mistakenly connected a 12v fan to the always on fan connection on the duet WiFi board. It sparked and I immediately turned the board off. Unfortunately, now I can't get the 24v fans to turn on so can't cool my board.
What could be the problem.
Thanks

[droftarts]

@chimaeragh Check the fan fuse; it's probably blown. It's the 1A one closest to the main power in plug. You can use a 2A or even 3A mini blade fuse (more likely to find these in a motor factors than the 1A), but do get around to replacing it with a 1A version eventually.

Ian

[chimaeragh]

@droftarts Thanks. Just checked. It's the blown fuse.