I replaced mine with the same fader in the link earlier and the tracking/calibration is way off fader only moves in a small space in the middle.
I noticed there was a another different LS9 fader on Thomman:
https://www.thomann.de/gb/yamaha_ls_9_01v_motorised_fader.htm?glp=1&gclid=Cj0KCQiA-rj9BRCAARIsANB_4ABHR8Cs1BkwqrDjG6Z8a0PPCGRCwi5OxMGrfyP5162LoXU3vuy7twoaAv-XEALw_wcB
The one i replaced it with was identical to the original apart from it had a rubber dust cover under the actually fader slider.
Did i buy the wrong one?