Extruder strange behavior???

[info@chapart.com]

Hi,

Just bought a Geeetech i3 pro C dual extruder 3D printer. As I tried my first print I got this strange behavior.

When I try to print the filament comes out of the extruder instead of getting inside. Even more, when I use the manual commands on Repetier-Host if I hit the Extrude button the filament comes out. If I hit the Retract button the filament gets in?????

Please HELP!!!!

[zhangxueyou]

Maybe the extruder motor cable is connected in the wrong direction.