I have a 33 foot 1988 Mallard travel trailer with a B-W power center. It is the 6300 A Series Model Number 3420. We are in a permanent spot. Recently the lights stopped working and then we started experiencing a variety of issues. Number one, parts of the campers exterior become electrified. Never the same part twice and no pattern to it. 2. We are also blowing the breaker at our power source at the campground. We checked for shorts and found an issue where the radio was hard wired. We fixed that and all was well until today. Now it is happening all over again. Anyone have any ideas of what we can do?