Auto leveling not working

[lrbouchard]

Found an other topic about this sorry, and also found my problem :

"Calibration Failed" on J1

I detached the build plate and start the calibration. Heads heat up and then you go to the next menu and clean the head. At this point you press the next menu and the bed goes up almost all the way to the heads and the left head travels right above the datum point and immediately the screen shows a “Calibration Failed” notice. It states “Please check if the axes can move properly and if the nozzles are clean. The machine will go home first.” At this point you press ok and you stuck with having t…