Hog 4 Fader Calibration/ Fader Not Moving

I have a Hog 4 with one fader that doesnt move with the rest as it should. I have opened the console and swapped fader connectors on the PCB. The fader itself seems to work as it will move when it is plugged into a different fader; the issue with the fader not moving also moves to a different fader when connectors are swapped, leading me to believe that the driver for the fader on this particular channel is bad? Any thoughts as to how to resolve the issue, or is it a problem with the PCB?

Also, is there a way to calibrate the motorized faders?