Forum Discussion

love4god's avatar
love4god
Explorer
May 17, 2015

Need some help, shore power tripping breaker/buzzing

My fifth wheel has been sitting all winter and I just pulled it out to set it up for some friends who are staying over for the weekend.

We cleaned it out, plugged it in, everything was fine. Then all of a sudden the circuit (HOUSE circuit, not RV circuit) tripped. Now when I try to plug it in I hear an audible and frightening buzz and the breaker trips in about a second.

What's really odd is that I turned off ALL the RV breakers and it still does it. SO does that mean something is wrong with the shore plug?

I used a different extension cord, heavy duty and shorter, and a different house circuit and the same thing. So if the breakers are off and just plugging the cord into shore power trips the shore breaker I'm thinking that there must be a short in the shore plug connector, it's a little loose feeling and the bottom isn't very tight, separation between outer jacket and inner jackets of the wires/plug. Could that cause this problem?

Going to try replacing that but though I would check in with the experts here. :)

Thanks
  • If there is a buzzing sound when it pops the breaker, my first thought would be the converter is the source of the short.
  • Well, I swapped out the end plug tonight and still have the same problem. Unfortunately the cable is hard wired into my fifth wheel, it's not a male/female removable plug.

    So next I guess I have to trace it up to the next connection and look for shorts.

    It would have to be between the shore end plug and the inverter right? Because if ALL of the breakers in the RV are off, including the main breaker, it would have to be between where I'm plugging it in and the box?
  • rhagfo's avatar
    rhagfo
    Explorer III
    Toddupton wrote:
    Does it trip with the rv cord unplugged? That wifi tell you a lot.


    I assume you were bit by auto correct! :B


    He did state changed cords, and circuits, my guess is mice! Not sure how your shore power connects at the trailer, but likely a mouse has chewed the insulation off of a couple of wires. This would between where power inters the trailer to the beaker panel.
  • Does it trip with the rv cord unplugged? That wifi tell you a lot.