Thanks for the reply. I had nelected to chec the water in the battery, plus it was about 10 years old. Was working up til about 2 months ago then the display quit.
I have replaced the house battery with a new one. When checking electrolyte it showed all balls sunk. none floating. Right now solar output is about 14.5 , battery is about same. The controller is still not showing any display on the LCD panel. Turning off the house battery does not seem to have any effect.
I cannot find anything about the controller other than the sales and installation info. Can anything happe that would fry the controller?
SKP 98741 life member.