Welcome I don't know if you have cat or Cummins but my first check would be disconnected sending units. Regarding inverter search this forums for house bat not charging. Levelled does the pad light? I would look for a blown fuse for starters.
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Ed & Sharon Ward ,Virginia Beach, Va.
2000 National RV, 37' Tradewinds
3126 Cat 300hp Allison 6spd Fl xc chassis
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