My battery switch in the basement area does the same has others have said it only shuts of the inverter not disconnecting the trailer batteries is that correct. I took my trailer back to the dealer to get a few minor thing fixed and I asked them about that and they couldn't figure out why it was wired that way. It's really not a big deal since I keep mine stored in a building at my house plugged in all the time but I was just wondering. So far we have spent probably 30 to 35 nights in our trailer with only a few minor issues so far.
2016 Sandpiper 371 rebh
2012 Ram 3500 SRW