Thanks for the quick replies. I think the problem is probably a bad extension cord after reading all of the possibilities suggested. I will probably have to spring for a more heavy duty cord.
<>
With that breaker on, voltage seems to dance around as the EMS shuts down then turns back on after the protective delay. I have seen voltage as low as 92 at times.
The main thing I wanted to confirm was that my converter was not having issues. The converter was working fine at the end of our last trip so I did not think that would be the problem and none of you have suggested that to be a likely issue. We are getting on the road today and I will experiment with a better power cord when we get home. If we have time this morning before we leave, I will look to see if we have higher gauge cord of enough length to see it the cord is the problem.