Hotend won't turn on.

So I have a mks-gen-l Board with 2 extruders installed into my Ender 3.
Yesterday it worked just fine, but now repetier-host doesn't turn the Hotend on.
The commands are there and there are no errors coming back, but the e-temp still shows "off".
Another thing is, that the bed heats fine and repetier still prints without the Hotend even turned on, while constantly spamming the "prevented cold extrusion" line.


  • Well the error has fixed itself?
  • Maybe you activated Dry-Run mode in debug settings in manual at bottom. That means simulate print without heaters/extrusion.
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