panel not charging
try to make this short. Bought new Forest River Stealth Toyhauler w/ factory installed GoPower 200w solar system w/ Carnanah panel. Has worked fine up till a couple of months ago then it quit charging. The controller shows a moon and arrow to battery but no amps. I have disconnected the wires and have 12.2 vdc from battery and from a clean solar panel I show 19.6 vdc with full sun. Controller seemed to be problem after doing both hard and soft resets. Got a new controller, same results. Dealer for GoPower is almost 2 hours away. Any suggestions before I make the trip?