emergency start.
Did you ever take a picture of your dash to show ?
I found this video, does it look like yours?
emergency start.
Gary, thank you, I kind of figured that was the reason why the fridge kept faulting. This information is very helpful. I have not given up on this. I am just exhausted now.Don't know where that table came from, but it's very wrong. Or maybe just hopelessly optimistic. Even allowing its measure an active battery rather than "at rest", anything less than 11.9v is poor and 11.2v is darn near totally dead. Barely lights a bulb! 10.5v is the lowest that most RV appliance circuit boards will tolerate, so things stop working even if they use propane or shore power for their main power source. Most experts consider a 12v battery to be "dead" at 10.5v.
Don't know where that table came from, but it's very wrong.
Charles, thank you, I had also considered the relay.Start the engine, take a volt meter and check the voltage of the battery under the hood. Then go and check the voltage at the house batteries. Even with low house batteries, it should be fairly close to the same as the underhood battery. If it is not, then the relay that connects the two systems together when the engine is running, is not working. Most likely burned up contacts.
Somewhere on your dash, probably to the left of the steering wheel, is a momentary button or switch, it may be half hidden, may not be labeled, but its almost for certain there. Pushing it forces the same relay (that connects the two systems together when the engine is running) to close when the engine is NOT running. Its a method of jump starting the engine. As noted it is also a method of jump starting the genny.
The relays are notorious for going bad. They function in that they close and make a clunk, but they don't pass electricity.
Charles
Are you by any chance in California?