I need to know which slot the brown sensor wire goes into in the snap-in wire receptacle located in the upper right corner (as you look at the solder side) of the tank monitor circuit board. Say the slots are numbered from right to left starting with #1 at the extreme right. Which number slot holds the brown wire?
I suggest you contact the tank monitor company and ask for a schematic. They were very helpful with me when I had questions. I don't know what vesion the 2011 19 footers has.