Is there any output from the converter? Turn on some 12v lights. Unplug the shore power than plug it back in. Do the lights get a bit brighter when plugged in? There are better ways to check, with a meter, but this is the easiest method. Since you have an '18, getting the dealer to diagnose and fix should be easy.
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Be Safe, and Everyone Goes Home,
Rick
2014 RAM Laramie 2500 w/6.7L Cummins Diesel and Automated Safety Hitch
2016 377RLBH Jayco North Point
300W of Suntech Solar w/Rogue MPPT Controller & Xantrex 2000W PSW Inverter
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