Electrical help

Thanks to all who responded-

Found the issue..

I have the 50amp inlet on the rear corner of my coach, the stock cord that came with was way too stiff.

I got a plug that went into the coach and had the 50amp male on the other end.. I then made a 40’’ cord out of SOO cord that is real flexible….

One leg at that plug was burnt up… I did not get too far into it yet, but I am assuming that since I made the cord, I didn’t tighten something….

I ran to Walmart and found a 30 amp RV cord that I plugged into the pedestal until I can get to an RV dealer tomorrow and get a new 50 amp cord

I'll bet he lost one leg of the 50A curcuit at the post. Pull out your multi-meter and check the two 50A legs at the post or your electrical panel in the trailer.

I would manually check the voltage at the pedestal supply. You are looking for 120v Hot to Neutral and 240 volts hot to hot.

If the the auto former is not really boosting much you could just remove it from the circuit to see what goes.
Check voltage on each leg with items running. If you have a bad neutral it will show high on one side and low on the other.

I just read on another forum that there are some autoformers out there that are miswired and have an issue with high voltage on one leg. I think that they were sold about two years ago.

Are you using an adpater or plugging straight into fifty amp receptacle?
Does everything work off on-board genset?
If yes, bad transfer switch.

You might try forcing a changeover and back on the transfer switch. I know there have been a number of posts on another forum about bad transfer switches.