Have you tested to see if you have power coming out of the on/off switch to the control board?
Ok if theres power going out of the on/off switch to the control board then im afraid its more then likely a faulty control board here.
Take the control board out and open it and see if theres any signs or burning on there.
If so then the board will need to be replaced. But if theres no signs or burning and theres still power getting to the board then its still more then likely the board at fault here.
If you need anymore info just get back to me.