Well, still no go. I pulled both the old batteries out because I think they are cooked and didn't want to take a chance that they might be throwing something into protect.
I disconnected the main power feed going to the coach batteries and put a meeter on it. It never gets power on it. Not with shore power and not with the generator. One time I was able to get power on it with the truck started but that was it.
I opened up the device on the right (big black box) and you can see the relay kick in on both shore power and generator. I metered 120v at all points so current is passing through it.
I opened up the inverter and was also able to meeter 120v on the output side.
I couldn't find an emergency start anywhere? Thought there was supposed to be a switch that would allow you to connect coach and start batteries. Start batteries are getting charged off alternator when running.
Tried with power inverter turned on and off. Coach power turned on and off. Neither made a difference.
Checked all fuses under hood, in electrical bay, and back by fuse panel inside. All good.
Is there an on board battery charger? Is the shore power and generator supposed to charge coach batteries?
2016 Dynamax Force HD