Soooo long story short... I had a big print goint that ended up failing and leaving a huge rats nest for ABS. I cleaned up and cleard the clogs and thought all would be well. I was wrong! When i try to preheat the extruder I get a heat failure. With the fans off it heats to 120? then starts descending then kick the error. With the fans on it makes it to 45ish and does the same. The wires look ok but there is a clear wire with the ends glued together... I don't know what it does or why its near the heat block. But the wires are not exposed and the shielding is intact. Could that wire be the a ground or causeing an issue? Does anyone know what is causeing the heating to fail?