Totally smoked my battery charger, Transfer switch questions

[scott_l_peatross]

Well, I plugged in my '87PT40 to my 50 amp service and I noticed the
air compressor wasn't running. Then I saw smoke billowing out of my
battery charger compartment. Grabbed the extinguisher and opened the
compartment door and my Trucharge 40+ battery charger was releasing
all it's smoke big time. Pulled the 50amp cord to check it out. The
Trucharge is history.

I turned off all the breakers in the coach, plugged in the 50amp cord,
and I get a loud buzz from the Shore power switch located by the
copilots chair. I can't see how to get it out, everything is carpeted
over. Is there an access panel under the carpet? What failure mode of
that switch would cook my battery charger? Did it get socked with 220v ?

I guess I want to pull that switch to check it out, see if maybe it's
safe to use the 30 amp cords. I'm leaving today for an outing, I gotta
get something working. Ideas?

Scott Peatross
'87 PT40
Stevenson Ranch, CA