Hey all, Bought a brand new Flagstaff 10 footer at the end of last season, everything worked fine. But we just took our first trip and had a strange problem - we could not get the 12v battery to charge, and it left us without the ability to use the furnace in some very cold weather. My understanding is that using the 30 amp "shore line" will automatically charge the 12v via the converter. Indeed, last year I remember hearing the converter, located under the seat, rev up a few times to re-charge the battery on a longer trip. But this time, the converter would not engage. The only way to power the battery was to hook up the 7-pin connector to the tow vehicle. So, what gives here? I have it plugged it right now at home, and still nothing - none of the battery-dependent systems will work. Is there some obvious solution here that I'm not seeing? Thanks!