As part of the purchase process I had the dealer I bought my Tiffin 32SA from add in a Victron BMV-712 battery monitor. I did not check it when I picked it up. It does not seem to work, there is nothing on the screen. It has never worked. They wired both positive wires(B1 and B2) to the same battery post. Don't know why they did that.
I have removed both of these one at a time and tried them in each position, nothing happens. Both of these wires test out at 12 volts. I have tried both the included telephone cable as well as one I have here at home, no change. It does not show up on the Victron Connect app.