I had a motor home plugged in outlet in the house. I had only lights on in the motorhome for about 3 hours., Breaker tripped in the house. I suspected the converter went bad. I unplugged converter from the 120 outlet . It still tripped breaker in the house. I was not plugged in to a GFCI outlet. Should unplugging the converter eliminate the possibility of a faulty converter??? I did check the power cord and adapter. All of that was good. Any ideas on what is the problem????? Thanks for any help.