Prusa i3x extruder does not stop heating

[danygb98]

I bought a prusa i3x and i'm having problems with the extruder as it heats more than the selected temperature until ir reaches maximum temperature at about 300 degrees.

What can I do to solve it?

I think it is a problem with the board.

[Toy]

I think you need to check your board according to the post: http://www.geeetech.com/forum/viewtopic ... 19&t=17039

[danygb98]

I Found that when I click to heat only the heatbed on repetier, both, the extruder and heatbed start to heat, I don´t know if that is supposed to happen?

[William]

Have you checked your motherboard?Is there anything wrong？