Forum Discussion

Varin's avatar
Varin
Explorer
Aug 12, 2017

Converter fan isn't running

I was getting annoyed by how loud the cooling fan for my converter was so I switched it out with another fan. Problem is, it didn't work, and switching back to the older fan doesn't work either. Gotta stop trying to fix things...

I'm definitely putting enough of a load on it to trip it, and the converter is working fine otherwise. When I measured the voltage the fan is receiving, I only got about 0.5v but I'm not sure if that's just because it isn't tripping as opposed to it just not working.

I'd really rather not have to replace the entire converter just because a $4 part went wrong, does anyone have any ideas of what went happened/what I could do to fix it?

The converter is a WFCO, Model WF-8955PEC.

Thanks!
  • time2roll's avatar
    time2roll
    Nomad
    Aug 12, 2017
    WFCO is not that good anyway.
    Replace with PD, IOTA, or PowerMax.

    Not sure who has the quietest fan....
    When I switched to LED lights I never really heard the fan again.
  • Germania's avatar
    Germania
    Explorer
    Aug 12, 2017
    Replaced my 13 year old WFCO with a new PD,havn't heard the fan run yet.Newer technologies don't produce the heat the older ones did.
  • garyemunson's avatar
    garyemunson
    Explorer II
    Aug 12, 2017
    The WFCOs would turn the fan on when it got hot. I suspect the circuit that does that has failed. I suspect that is a function of the main control board and not worth fixing. New converter time.
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Aug 12, 2017
    Just for drill I will answer the OP's question...

    Fan driver transistor gets hotter than snot if load exceeds @ 2 watts. If you stuck, say, a .5 amp 6 watt fan on it, its going to have SDS (sudden death syndrome).

    If they priced Wiffies at $10.00, they would not be worth the money. They make better than nothing bench-top power supply but that's really reaching. my $22.00 cheapOwatts make for far-better bench power-supplies.
  • beemerphile1's avatar
    beemerphile1
    Explorer
    Aug 12, 2017
    Low budget or temporary fix would be to supply manually switched power source to fan. You will need to turn it off and on as needed.

    Plugged into shore power = switch on.
    Operating on battery power = switch off.

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