THe converter was bad. The AC worked but not the DC. We called a mobile rv repair guy the office manager suggested and he tested it and said it was bad. Checked with his supplier and they had it so had him replace it. We don't have a dealer in town, they are 40 miles away. When they work on our trailer it comes back with more problems than when we took it over and it stays there weeks before the work is done. We stopped going to them and went to a small rv repair and supply shop but they closed in May. We may have paid a little too much but he was fast and knowleable. Well worth it. Thanks all for your help. GBSELL