I’m not sure if this is the right forum or not, to talk about an electrical issue, but here goes. Tuesday (3/18/14) my DW and I took our new (to us) 1995 Carriage Callista Cove, out for our first t...
I wonder if the heater itself has a safety cutoff switch device built-in since you say all outlets now have 110vac power. You should be able to contact the manufacturer of your rig if still in business and ask where the GFI outlet is (if any).