Extruder No longer heats up

[dunginhawk]

Good evening... So i started a print, went to bed. Woke up it was half done. but the layers split and it quit midway through. Just thinking it failed, didnt think anything of it.
Tonight i go to print something and it wont heat up the extruder. I set it to go, and nothing.
THe bed heats up just fine, but extruder. Nada.
Its a hex from makerfarm prusa kit.
The thermistor is still in the head. all the wiring looks good. Is there anything easy to check? a fuse? or something?
the HE1 light comes on on the rumba board as well.

THanks