Hi gr5, thanks for the reply!
The maintenance kit was the one containing the bowden tube, fans, build plate ect. now you mention the fan cable location that could be the problem, do you have a list of the ports they should be in?
I cant print anything at the moment, the over extrusion causes the nozzle to pull the part of the build plate.
Once i have checked the fans i will look at pushing the 100mm through the bowden tube and measuring it.
Thanks again