2008 40 FT should be a 50amp service
BUT
if you are plugged into a 30amp service with a 50-30 adapter
there may not be enough power to run both A/C's
if on 30 amp you will MUST turn hot water to LP and fridge to LP and limit all other power use
each A/C needds about 12amps to run and a lot more to kick on the a/c compressors
so run power for two a/c units is approx 24 amps
that means no electric HW, no MW, etc.. unless you have 50amp service
50amp rv service is really 100amps, 50 amps per leg, and there are two legs
30amp rv service has Only One 30amp leg
big big difference
I can explain it to you.
But I Can Not understand it for you !
....
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1997 F53 Bounder 36s