dougrainer wrote:
That is a very good wiring diagram. To clarify for you. There are 2 (two) 50 amp breakers in your RV and your diagram shows those. You stated 1 previously and that made me think someone had southern engineered your RV wiring.
Thanks wrt the diagram. Only through the course of figuring all this out did I realize a 50amp is really 2x50amp
dougrainer wrote:
You diagram shows exactly how a Inverter/Charger When on Shore Power, the 120 just goes THRU the Inverter and back to your panel. Since it appears to happen when it gets colder, that points to a LOOSE 120 wiring connection, probably at the Inverter/Charger 120 input and output wiring. Magnums use a screw type system and not wire nuts for the 120 romex wiring. I would check those with a screwdriver. Doug
I talked with somebody else on the forum here and he suggested that it might be those connections, so I replaced all the wire nuts last week. (They actually are wire nuts, not a screw-type system like you mentioned; this Magnum's from ~2012 when my coach was built, not sure if perhaps they've changed? Or maybe I'm misunderstanding what you're describing.) I replaced the original wire nuts with weatherproof nuts (that have the grease inside of 'em). But that didn't seem to help. Same issues. Also, the original wire nuts looked to be well put together and taped.
If you've got ideas for other connections to check, or if I'm misunderstanding, I'm all ears.
For reference, at present,
I've got it wired like this. (Note that I hadn't included the neutral bars in the earlier diagram. I removed the neutral coming from the Magnum, and connected the neutral bar on the left (connected to the 50amp breakers) to the bar on the right (previously connected to the outbound neutral from the Magnum. The outbound hot and neutral wires coming
from the Magnum into the breaker box are both just wire-nutted.)
I'm still occasionally seeing the fault light kick on on the Magnum's remote screen, so I think whatever the issue was is still happening, but it doesn't really impact me at this point, since it doesn't kill power to the outlets in the house.
