hi all, all new to this , but have a problem with z axis, it only moves down, tried altering in ports and pins but no change, it worked fine on other days, am i doing something wrong or am i not doing something i should be.

Loose dir wire?  Happened to me once.
Don

ok, so what and where is the "dir wire"

Direction wire. Either on the break out board or at the drive.
Don