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Rog1010's avatar
Rog1010
Explorer
Jun 11, 2017

Electrical Issue- Bad Converter?

Hello-

I have 2006 Weekend Warrior with the following electrical problems while on 12V-

1. Lights are dim and when other lights are turned on, lights go out for brief second and come back on.
2. Radio will be playing and a light is switched on, radio will power off and back on.
3. The battery panel shows "weak" regardless of the length of charge.

When plugged into shore power or generator running, everything works great.

Generator starts on battery power without hesitation.

I have put two new batteries in and have 12v from batteries to the converter.

Does this sound like a converter issue, a loose connection somewhere or something else.

If converter, could someone tell me the best way to check if bad?

Thank you for your assistance. Roger
  • wnjj's avatar
    wnjj
    Explorer II
    Jun 13, 2017
    Joe417 wrote:
    1. You stated you put 2 new batteries in and still had the problem.

    2. You also have no issues when on shore power or generator.

    You most likely have a loose connection between the battery and the 12v power buss.

    The generator starting power follows different wires(#2 cables) which goes directly to the gen starter. So it will start even when your monitor is telling you the battery is low. The tank/battery monitor is feed from the 12v power buss/fuse box.

    The converter feeds the 12v buss through different wiring than the battery feeds the buss and everything works correctly when on external power. So it isn't bad.

    Look for a loose connection between the battery and the fuse box.

    There are also (usually) auto resetting circuit breakers between the battery and fuse box. One other item you may have is a high current battery disconnect switch that could be defective. Not all RVs have them.


    ^ What this guy said.

    The converter is fine. The batteries are fine. The connections aren't.

    If you do have a battery disconnect switch, try cycling it a few times.

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