I'm not to familiar with park models but I suspect they have the same electrical system as a RV. I would start by physically getting familiar with where the converter, batteries and fuses are located.
Find and check the chassis ground connections and all connections on the battery and converter.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
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