Originally Posted by RONXS69
Not going to touch that post with a ten foot keyboard cable!!!!
Ok- I've looked over page one and already find some fault with the drawing as shown.
A. The inverter connectins shown with 300 amp interrup is probably not the converter also. The battery charge is usually in the converter ouitput, I haven't located yet. It would never be 300 amps, more like 50. Thats a/c being converted to battery charger voltage and some left over to to run the DC in the coach.
The inverter on the other hand manufacturers ac from the batteries thus the high 300 amp. 3 amps of AC use requires maybe 40 DC amps to manufacurer.
Design feature you can correct, the hyd pump comes off the chassis starting batteries. In a mishap you'll loose them very quick. All modern designs use Hyd pump from the coach batteries, theres more capacity
So yes the inverter is connected to the batteries direct but the charger converter is not. If you have DC when plugged into shore power, could be the charger portion the converter is bad. There is a 135 amp power supply at the top of drawing marked x and y OEM wires. that may be the output from the charger. Had to give up for now, maybe with you time invested you can make quiicker sense of this.