One of the most useful diagnostic tools for me is a clamp on AC/DC ammeter. That may tell you what amperage it’s popping at. You put it on AC amps and just clamp it over one leg. Mine will hold the highest recorded amperage. I also use it to more accurately read how much DC the solar panel is pumping in so we rarely if ever plug into shore power. Hopefully it’s just a weak breaker, that’s pretty common. Len
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