your title says inverter, then you start your post with converter, then you end with inverter.
your problem sounds like the converter. if that's what it is, should be behind the fuse/breaker panel.
these are two different things. which is it?
all RV's have converters, which converts the shore power to 12v DC and also recharges the RV battery.
inverters do the opposite and usually are optional or have to be installed separately. they invert 12v DC to 110v AC to power things like tv's, dvd's, charge cell phones and so on.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC