Hi ! Welcome to IRV2! We're sure glad you joined the gang!
Congrats on the new rig! Many devices with digital controls will not operate properly on Modified Sine Wave (MSW) inverters. In fact, it can destroy the controls! I suspect this is your problem. I zapped the controls on our heated mattress pad that way!
Good luck, happy trails, and God bless!
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD