Geeetech

Hi All

I am having the same problem a blank screen and a red led number D8 by the heater 2 connection on my GT2560. I know it is an old thread but if any one can help I really do need it,,,

My post has disapeared and has been replaced by another 1, I did not post the " Which version of nema 17 motors " ?? which has been kindly answered by Soadyheid. Sorry about this I will try and find my original post .

Hi,could you tell me which version is your nema 17 stepper motors ?I think the driver board didn't have enough voltage to driver the motor,maybe you can increase it or replace with A4988 to have a try.