Wjohns02 wrote:
Sorry, one more question on the battery. Battery is probably original to the unit, so could it be weak even if panel board shows it as fully charged? At this point it is pushing 5 years old.
The panel is just a rough voltmeter. A full battery is 12.7v, but your converter does 13.6v on shore power, so even if the battery is dead, but the converter is on, the panel will show "full" by "seeing" the converter's 13.6v.
If you have low 12v on the panel, AND you are on shore power, then you have a converter problem.