Hello, I am new to 3D Printers and just built an i3 kit from eBay. After wiring everything together I realized that the pinout of one of the Z-axis motors was wrong so i fixed that. Upon completion i get an error code of M999 ib repeater. The motors will home, but I have no other control, I believe it has to do with the thermoresistors. The bed temp shows up. But the extruder temp is always at 363 C even when its unplugged. Could there be a short somewhere in the system?