scroll through the screen and see if any errors pop up or check the screen that shows voltage you have to hold above 12 volts or it will not work. It's worth a try.....
Do you have a 12v meter? If you do pull the the pug to the screen which is the computer and check for 12 volts. If you have voltage and still will not come on you will need a new control or screen same thing different terms.
Linear Mode
