I had an older Axe FX that had an issue with the scroll wheel on the front of it, sometimes it would jump backwards. It seems like the problem got to be worse, so I contacted Fractal, and instead of me sending my unit to them for them to repair, I got them to send me the part so I wouldn't have to fuck around with paying tax on an item I already own when they return it.
The part I had to replace is the knob on the far right. Had to de-solder it and pull it out, then solder the new one in. She works like a charm now. Figured you guys might be interested in seeing the guts.
Mmmm, Guts... Gotta love pulling stuff apart.