Thanks for the replies. Yes it is under warranty and will be going in after our last trip over thanksgiving. the converter and power bank with all the breakers and fuses is in the garage in the wall. No idea if the converter plugs into a receptacle or not. I am thinking it is the converter because I started with all breakers off and turns each one on and was good until the converter breaker was turned on. Water heater was off whole time but fridge had power and everything else did as well and things were fine. At least now I have a better understanding of how things work
Ps...how would I test my 50a cord to make sure something is not pinched or grounded out in there? Thanks again for the tips
