Eric and Margie,
My recommendations would be:
1. To be sure your vehicle is not covered under the AC/Heater Safety Recall (threads this Forum).
2. Check your house batteries and if they are Harris Batteries watch out for "Sulfated Dead" Batteries as Harris will blame WFCO who makes the Converter/Charger and WFCO will blame Harris and you ARE stuck in the middle with dead batteries in less than 5 months - in my case. (threads this Forum).
Unit now running fine, just some initial Warts and rough edges.
Sheree & Michael NCNG LTC(ret) with Satin Doll & Munpi.
2016 Vegas 24.1 E350 5 speed "Ms. Enterprise" with
Engine "Bug-Guard" Screen, Recliners, Infotainment Center, HUD, ARC Shower Rod, Safe-T-Plus, Curt SpareTire Mount,Tornado Black Tank Rinser & exterior WiFi Antenna.