Hi! Im looking for some help if anyone has time. We have a 95 coleman popup. Everything worked fine last time we used it a couple months ago. Now getting it ready for the next trip, i can not get the overhead lights to work. All the outlets work though. And something that concerns me is the switch to conv, off, 12v does not work. As in, when i switch it to off, the outlets still work and i can still hear it running. It only has 2 circuits and it hums on circuit 1 and clicking it off and on didnt do anything but make it hum. Circuit 2 is the outlets and when i click it in and out, it works the plugs. #2 is not effected buy turning off #1 Its not connected to any batteries at all. Just plugged into my house outlet. There is nothing else electric in it, just the inside lights and the outlets. I did check the connection at the top of the canopy post for the wires and all was good. Any ideas? Im worried the converter has gone bad or something. Its orginal to the camper. MagneTek series 6400A Model 6490. Also, there is a on/off switch right inside the door on the left hand side, that dosent do anything? What's it for? Thanks for your time and any suggestions!