FWC wrote:
I would guess your breakers are tripping at below their rated current, and it is an issue with low quality thermal breakers. This would also explain two apparently unrelated faults, if they are using the same breakers. I can't see from the photo, but is there a manufacturer and part number on the breaker? Not to be rude, but based on the photo of the installation, this does not appear to have been done by a careful professional.
The breaker from the solar charge controller to the batteries is now 50amps (it blew one time when it was 40amps). It is one of these:
https://www.amazon.com/gp/product/B07K4ZK4VP/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
The one in the photo is the one that came from the manufacturer (Thor) install. I have not touched or added to it, so as far as I know it came exactly like this (with all the wires) directly from the manufacturer.
The one in the photo (Converter Main Breaker) has never popped in the ~1.5 years that I've owned the RV. Until yesterday. After feedback here and thinking about it more, I don't see how the solar/inverter install could have caused this since those components are basically hooked up directly to the batteries and not through this breaker.
Until I see it happen again (which could very well happen), I'm going to caulk it up to user error or fluke. If it happens again, I'll try to get more details about what was going on just before it popped.
Thanks!
Chris
