the disconnect switch SHOULD allow for the driver to operate those things.
but you need to contact your dealer or Trilogy to know for sure.
if you failed to have a battery hooked up to your old TT, while towing it, you were violating the law. your marine battery does have a purpose, even if you have hookups.
the battery powers the TT's emergency brake system, should it detach from the tow vehicle and it is the law to have the battery, if the trailer is equipped with electric brakes.
not sure how you got away with it for 12 years.
if the CHP had pulled you over, you would have been cited for that. and they may have had you leave the trailer until you put a battery back in.
also, it's better to start your own thread, instead of piggybacking on someone else's thread, if it is a different issue than yours.
the OP is having issues with his converter and breakers.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC