Forum Discussion

ib516's avatar
ib516
Explorer II
Apr 18, 2014

Is my converter fried? (TEAR DOWN NOTE)

RV won't run the slides out etc. even when plugged into shore power. I have confirmed shore power (my house) is good as microwave in the RV will work. I do not have an RV battery installed as they are still in storage in my house on a maintainer.

Using a digital voltmeter, and touching the terminals that would connect to a battery if there was one there was 10 to 11 volts. Terminals are not shorted in the battery compartment.

I installed an RV battery that measured 12.8V and is new, and when I connect the terminals in the RV to the battery, I still get 12.7 - 12.6V. I would expect 13.2V when plugged into shore power.

Converter is a WFCO-8900 series.

Thanks.
  • mobilefleet's avatar
    mobilefleet
    Explorer
    Apr 19, 2014
    check the fuses on the converter first. Might be ones on the back of converter. If good it could be bad charge section of converter, which can prob be bought separately rather than a whole new converter. I hav replaced many charging boards on campers that use WFCO converters, seems they are about $100. Here's a link to ebay sellers of these boards: clicky
  • ib516's avatar
    ib516
    Explorer II
    Apr 18, 2014
    When I try to operate the RV lights (LEDs) there isn't enough power. The lights are dim, and the LPG leak detector, which is wired to the battery goes from green status to red when I flip on one small LED light.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Apr 18, 2014
    The slides NEED the battery due to high amp draw. They are wired directly to battery.
    Converter alone is not enough ump

    Converter DC output should be 13.2V minimum when connected to shore power.

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