Printer can't move in positive Y direction.
I have a Printrbot Simple Maker's Kit, and all directions work except for the positive Y direction. When I manually try to move in the positive Y direction, Repetier gives me the message "echo: endstops hit: Y. I entered the command M119, and received the message "x_min: open y_max: TRIGGERED z_min: open"
I know that this printer only has three endstops, and they are all minimum stops.
I've read that others have edited their configuration file to fix the problem, but I have no idea how to access that file.
Any help would be great. If more information is need, let me know.