I have just completed checking the panel. All connections are tight. The slides are working and not blowing the 30 amp fuse on the 12v panel. I did charge the battery on a separate charger, it did not request much of a charge, but it may be enough if the battery is on the edge. So after Christmas, a call to IOTA and Team Montana to see if I can get anything out of either.
I think I have in my mind the schematic for the 12v power from the converter and the battery to the 12v fuse panel. If you all think it will help others I will get this drawn up and post.
So for now, I believe if the battery is beginning to wear down, quicker depletion of the amperage & drop in voltage, the "diode" as discussed in part of this thread detects the difference in the voltage and this is detected and the fuse blows? (How does that sound, experts?) All driven by the amperage request from the slide motor and the battery cannot provide so the converter adds amperage and overloads?
Here is a web site on batteries and the 12v system, it has helped me with the theory anyway.
www.phrannie.org/battery.html
Again Merry Christmas and safe travels