screen giving only this error ( ---- )

I would unplug the unit for three minutes. If this screen error continues replace ( EOC ) . See technician sheet link below , this error does not show on the diagnostics sheet.

First I would try to reset it. Turn power off to the unit for 5 mins and back on. I have attached the tech sheet for you as well. If nothing changes and you can not press any of the buttons on the control, I would suspect that you have a faulty control board. p# 316455410