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trailerbikecamp's avatar
trailerbikecamp
Explorer
May 14, 2019

Having trouble locating short circuit

I have a 2004 Carriage Compass 30 RLS. Yesterday when I was leveling the camper, I blew a fuse, and all 12V power went off in the camper. The fuse is a 25A on a #10AWG black wire. I went back to the camper today with my multi-meter to find out what happened. Today, I found that everything that runs on 12V works, except one fantastic fan. The odd part is that, when I opened the fan it had two #14AWG wires. One was purple, the other white.

The powered cover for the fan is fine, but the fan doesn't run. Should I open the fan itself? Or look elsewhere to find the short. There is a 4A glass fuse in the fan, but this fuse is fine.

I have a second fantastic fan which works perfectly.

The 120V power is not plugged in
  • trailerbikecamp's avatar
    trailerbikecamp
    Explorer
    May 14, 2019
    agesilaus wrote:
    If you expect consistent wire color codes in an RV you are doomed to disappointment. So don't be surprised that there is no black wire obvious inside the fan housing. Use the ohmmeter function on the DMM to find out which of those wires is connected to the black one.


    I was thinking this on the way home. I'll try this tomorrow. I was also thinking that the purple and white are for the raise/lower function and not for the fan itself.
  • agesilaus's avatar
    agesilaus
    Explorer III
    May 14, 2019
    If you expect consistent wire color codes in an RV you are doomed to disappointment. So don't be surprised that there is no black wire obvious inside the fan housing. Use the ohmmeter function on the DMM to find out which of those wires is connected to the black one.

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