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deminimis's avatar
deminimis
Explorer
Dec 15, 2016

Happijac Blowing Fuses

Blowing fuse for left rear jack. Found some old posts and a couple of things to try (removing motor, blowing it out and re-oiling bearing seems to be the best solution short of replacing the motor). Rain gutter and extension causes water to fall right on top of this jack, so it's probably the ol' water in the motor issue. Guess it was jsut a matter of time. Just thought I'd reach out in case anyone has any additional tips/ideas regarding this repair. Thanks.
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  • jimh406's avatar
    jimh406
    Explorer III
    Dec 15, 2016
    Call Happijac if you haven't or look on their site for how to clean it.

    I would try isolating to the jack or not. That is, unplug the jack and see if the fuse still blows. Then, I'd take it apart and clean it or hit it with WD 40 or other water displacing spray.

    If you can get to the control, you could also try bipassing the wire to the jack to see if the wiring to the jack might bad. You could also do that by moving the jack to a different position. There would only be a few bolts to take loose to move it.

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