NO DC POWER but have AC Power: Here is what I found out

[first5thwheel]

Hello fellow 5th Wheeler's,

I am new to the pull family and this is my first 5th Wheel. It has been neglected but is salvageable. It is a 2000 Fleetwood Wilderness GL M-30-5G - 32' it has a 14' slide in the kitchen living area and a bedroom slide. I only paid $6500 and it is sound just needs a good cleaning and polishing. The roof is good, no leaks everything works and once the cobwebs and dirt are gone, it will be good as new. I am going to lay new flooring and upgrade the sinks and counters, throw a nice glass tile back splash on it in the Kitchen area and update the interior walls with a new covering. With some new furniture it should not look like the same puppy. I will take pictures of the before and after renovation and post them for anyone who may be interested.

When I got it home for the 1st time, I noticed that the DC power was out. They did not manufacture batter disconnect switches yet for this year, so I was stumped as to what the problem was. All the fuses were good, no breakers were bad and it only affected the DC power. Nothing would work because the DC power was not getting to anything. After 3 hours of investigation what had happened was they previous owner had put the Neg wire on the same post as the positive wire at the battery. (Why there were no fireworks baffles me, I think the way they had connected it, it acted more like a disconnect switch and not letting power to any other part of the DC system. Once I discovered the issue everything came on like a charm and no further issues. I am only posting this in case someone else should ever run into this error. I think we are always quick to blame the inverters on this, but in my case it was human error. Hope this post helps someone in the future when the search this problem.