Have spent the best part of today getting back into the Bigbox. about a year ago, the nozzle on my dual blocked; Its taken till today to fit a new hot end, replace 1 stepper controller and recalibrate the bed level etc. everything is now working.....except that when i set it to print; nothing comes out; the motor shows no sign of movement/noise etc. it was working last time i used it. I cant seem to work out how to test it. I can go into the menu and move all the other motors apart from the extruders. Its a dual big box with titan extruders. I use it as single extruder, using the top mounted extruder. the other nozzle seems to suffer with maxtemp error, so if i shut it down it works fine. could it be the motor? or am i missing something?