A long time ago and far, far away, we plugged into a box that some genius had wired improperly. It 'blew' the inverter and some other stuff.

A really smart guy at a local RV shop was undaunted in his quest to fix the inverter instead of replace it.

What he found was a 35-cent fuse had blown in the power supply. Instead of paying the big bucks for a new one, we were back on the road in short order for short money.

Sadly, Jon happens to be correct on this one.