Quote:
Originally Posted by JRTJH
Two possible "issues". First, there's something wrong with the way your trailer 12VDC wiring distribution is installed. ALL 12 volt lights that are OEM are wired to operate on either battery or converter power. There is no "separate converter DC power system" that only operates on shore power.
Second possibility, that light is wired to a switch that you haven't yet located (although that's hard to imagine knowing how you've examined and used your trailer).
Either way, or some other issue if it's present, something's not right with that light. In the past 10 years, I've never seen an OEM ceiling fixture that's 12VDC not have power from the battery system AND the converter system.
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John
He does say that they work when plugged in so it would appear that they are wired up to something and the switch is working. The battery and converter outputs are tied together on the DC fuse panel board and there's no way they could be separate. You would have to have a separate converter hooked up to just those lights to power them. Interesting problem.
A picture of the DC fuse panel might help us understand the problem.