Extruder not heating

[Tarek Rene]

I was able to make my printer connect to the computer all the X,Y,Z motors are working properly and the heat for the bed is working too but extruders are not heating up what do I have to do to make them work
Thaks

[Mark]

what's your printer type? is your board GT2560? then you can check this link:
http://www.geeetech.com/forum/viewtopic ... 19&t=17039