Here is what I have for electrical schematics on the Force. As you can see, that have not been made all pretty to read. I hope to have a guy make them a little more user friendly, but we're in the middle of a new E450, in the middle of transitioning to multiplex wiring, etc, etc. So that project has been put on hold.
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Update. The folks at Dynamax sent me a new charger and that solved the issue with charging coach batteries off shore power and generator.
They also sent me a new relay to try and solve the issue of not charging off the alternator but I have not had the time to install it yet.
While speaking with service I learned that some of the rigs went out with the emergency start inop. So that explains that. Still have to dig into it.
One of the stock batteries is bad so I'm not sure what went bad first. Still have to get that warrantied.
Kind of the perfect storm. The folks at Dynamax have been great to work with so far and very helpful by sending out new product based off my diagnosis and not making me take it to a dealer. Would have been nice if it worked in the first place but I was warned when I bought it things will break.
Thanks to everyone who chimed in and offered advise.
Glad to hear things are getting back on track. I was wondering how resolution to this issue was coming along. Also, good to hear [we] were all leaning towards the charger as being the source.