Geeetech

Bought this on ebay:

USA Seller Geeetech Prusa I3 ProC Dual Extruder 3D printer Unassembled GT2560

Please see attached screen shot. New build, turn it on and that is what I get. Any ideas? Firmware not right? Any other thoughts? I have built 8 DIY 3d printers and this is a first. Google has been no help either. Any thoughts appreciated.

Thanks,
Mike

yep

firmware would be a good place to start

viewtopic.php?f=20&t=17046

I guess there is no firmware in the motherboard...
You can download the firmware then upload it from the link @Gareth B mentioned.

Thanks for the tips. I'll check that out.

That worked!

Now it starts, but when it reaches temp it just keeps going and eventually stops due to high temp overload. Time to check thermisters....

So i guess the led around the heater connector will be always on once you switch on your printer?

If so,you can try removing the heat sink on the corresonding mosfet to take a look.'Cuz i suppose the mosfet may have a short circuit,which leads to the automatic heating.