Ok RV electrical 00.1 Inverters and converters and inverter/chargers
A converter is like the device you use to charge your phone. only much larger
It converts 120vac to battery voltage... Just like the phone charger. To charge your phone.
IF you are not plugged in, then it has a very good reason for not working
(No 120 volts to convert)
Unless you are running a generator.
And INVerter does the INVeres of a converter. Converts battery voltage back to 120vac for your Television or radio or electric razor.
An INVERTER/Charger combines both functions in one box. (I have one behind me as I type)
So now you know what those things do
As someone pointed out you need a mobile technician/mechanic to pay a call on you. Sounds like the Mechanic is who you need but it could be somethign an RV tech covers.
You should also sehedule an hour or two of an RV tech's time or perhaps a well informed neighbor RVer's time to show you around your rig. explain where the converter (or inverter/charger) is, if you have an inverter.. I've seen way too many trouble calls that were rather easily solved..
One day a man with a delux motor home contacted his next site neighbor (who had a vintage Blue Bird also a Delux) and he came and fetched me.. Tripped circuit breaker on his inverter. he did not even know he had an inverter.