So here's the story. RV is parked at my in-laws place for now. We were using 50 to 30 to 110 adapters very temporarily. We ran a new cable from a 220v outlet thinking it was the same as 30amp and got it wrong. When we hooked it all up, it fried the fireplace and the converter/battery charger. Lesson learned: hire an electrician to install a receptacle on the side of the detached garage where RV is parked.
Replaced converter and am now looking at fixing the fireplace. I may have found a source for the circuit board though at $24. Ended up with an email address for sales at Way Interglobal, which as mentioned in an earlier post is the U.S. distributor for Greystone fireplaces.
