So I have been printing a lot, like everyday for almost 8-12hrs and then I was printing something and as usual I got a Filamment Jam msg, I go unload and proceed to load the filament, but the filament is not going outside the head of the printing extruder, Is like something is stucked there. I have unplugged the extruder opened and verify the other parts to be ok, but I dont know how to open/verify is something is in the final part of the extruder. Any ideas? Is the extruder already dead??

BTW, is normal to get like a 2-3 filamment jam errors in a 2-3hrs print??

Thanks
MP