Class B : Roadtrek 210 Popular, 2010. I have a problem with the monitor panel. Someday found that the battery LED light on monitor panel is turned on and it never goes off even I switch it to off position. When I disconnect AUX battery cable, then it goes off, but when I re-connect it, the LED light turns on again and never goes off. In this case, what should I check ? Appreciate your advise... thanks.