Ready2Educate problem with default homing position.

I start using a Ready2Educate that I just received with KR3 Agilus and KRC4 controller. I try to run the demo programs that are inside the controller but the default homing position does not work. The robot A3 axis touches the A2 and I get "current overload after 0.2 s(A3)" error. Do I have to change something in the calibration?

Thanks, I have already add more homing positions, I wanted to eliminate the possibility that I did something wrong.