One further test... if you plug the X motor into the E0 connector, does it move?
However, I think this may actually be caused by software interlock? If the hot-end temperature is too low or too high, Marlin, Repetier, and I guess other firmware will refuse to extrude.
Look at the log/terminal window and see what the firmware is telling you.
However, I think this may actually be caused by software interlock? If the hot-end temperature is too low or too high, Marlin, Repetier, and I guess other firmware will refuse to extrude.
Look at the log/terminal window and see what the firmware is telling you.