[sourdough]

I have had my head in other issues but, if you had it plugged in, everything operational, smelled something burning and a pop, lost all power to the trailer; THEN unplugged and plugged back in the power cord and all was good - how does that happen?

The pop wasn't a breaker because they don't self restore. It wasn't a burned up something that fused then blew a breaker. I can only surmise it was something in the AC that made the noise BUT if it burned up and made a popping noise it would have just "popped", not knocked out all power until it was unplugged then plugged back in. My thinking at the moment anyway.