Good day all. I am installing a new AC/DC converter in my 5th Wheel. I am trying to reuse the DC panel that was with the old converter. I have just about all things happy I think. Positive and Negative all in place but I have no lights. So I have a question. The old inverter (Magnatek 3246) has red (pos) white (neg) and a blue wire connected to the fuse panel. It also has a blue wire that connects to the fuse panel.
My new Parallax 7455 does not have this blue wire.
What is the blue wire? I can only assume right now that it is stopping my dc power from working. There is continuity from battery to all positive connections on either side of the fuse; there is also continuity to all negative connections. I have not hooked up AC power to the converter yet as I want to see the lights work on battery first.
I am not stranded without lights or heat as its a warm night and I have AC lights, so if I need to get a new fuse panel I can do that.
Don't know if this will help or not, but on most radios, the blue wire is the wire that senses voltage to "trigger" accessories such as amplifiers. Maybe it is used to sense the presence or lack of something.
You need to jumper the red and blue pos wire connection points on the old DC panel to make it work with the new converter to catch all the circuits. The 6300 has a split fuse panel with wire to each. The 7400/7300 is not split.