update....
I rang the shop today, and have been advised to tke it to them, and if it is something simple they will look at it there, if not they will have to return it to akai pro for repair.
I asked about suppying the user replacable crossfader, but they dont stock them, and donk know of anyone that do, but suggested i contact akai direct if i wish to follow that route.
I will be taking the unit in to the shop on saturday.
to be continued .....