Forum Discussion

rob-bill's avatar
rob-bill
Explorer
May 12, 2013

Power Converters

I have a 2003 30ft Sierra 5th wheel by Forest River When I am plugged into shore power My 12 volt lights inside will work but when I do not have shore power they will not work. The battery's are new and fully charged, the 12 volt landing jacks and slide outs work ok but the lights inside will not, all fuses are good also I have to use a battery charger to recharge the battery's.
Any info. would be appreciated
  • rob-bill's avatar
    rob-bill
    Explorer
    May 15, 2013
    Thanks for all the info I re checked all fusses nuts etz for tightness, plugged in tow truck interior lights worked with shore power disconnected, unplugged truck and interior lights now work on trailer batteries????
  • rob-bill's avatar
    rob-bill
    Explorer
    May 13, 2013
    A little more info the Converter Charger is made by PPC Parallax Power Components series # 7300 & model # 7355
    I have tried to add photos----guess I don't know how to add the photos





  • Michelle_S's avatar
    Michelle_S
    Explorer III
    May 13, 2013
    If you have a battery disconnect switch, most likely in the wrong position. Generally when in the ON position means Battery is disconnected, OFF means the disconnect is off, there fore battery it connected to 12V distribution panel.
  • Allworth's avatar
    Allworth
    Explorer II
    May 12, 2013
    There is going to be an automotive type breaker with manual reset somewhere between the battery and the pannel.

    Pull any 12volt fuse and check for voltage between the hot blade (usually ((but not always)) on the right or bottom depending on how the pannel is mounted) and ground.
  • time2roll's avatar
    time2roll
    Nomad
    May 12, 2013
    You have an open circuit between the battery and 12v panel. Probably a switch or fuse.

    Jacks and slides connect direct to the battery.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    May 12, 2013
    Battery isolation/disconnect switch turned off
    Blown 'auto reset' dc circuit breaker/fuse.......in-line close to battery on positive going to converter
    Blown Reverse Polarity fuses on converter (battery cables been off...reconnected backwards?)

About Fifth Wheel Group

19,006 PostsLatest Activity: Jan 24, 2025