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Heater Fan not turning

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Libertydreams, Nov 26, 2014.

  1. Libertydreams

    Libertydreams Junior Member

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    My heater fan stopped working yesterday for no reason and looks like all the fuses are good, any suggsetions
     
    #1 Libertydreams, Nov 26, 2014
  2. Paradox

    Paradox Prius Enthusiast / Moderator
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    Moved to the maintenance and troubleshooting forum
     
    #2 Paradox, Nov 26, 2014
  3. Easy Rider 2

    Easy Rider 2 Senior Member

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    Buy a multi-meter or find a friend who has one.
    Could be the fan itself or a switch or a loose wire.

    IF it is an automatic system, find a shop.
    Even if it is a manual system, a shop visit would be best and probably not TOO expensive.

    Any chance that it is still under warranty ??
     
    #3 Easy Rider 2, Nov 26, 2014
  4. Libertydreams

    Libertydreams Junior Member

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    no, out of warranty, because of the mileage

    I found a You Tube Video about it and the way Toyota powers it is through a pulsing contact wire and a small circuit board with a heat sink plate, for some reason or another they stop working.
    This unit is mounted on the fan that stops working.
    I am not sure this is my issue however I thought I would share in case someone else has this problem to check it out.
     
    #4 Libertydreams, Nov 26, 2014
  5. Eclipse1701d

    Eclipse1701d Prius Enthusiast

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    I assume your 2012 has more than 36,000 miles? Is that way you are trying to fix it yourself? You are out of the warranty?
     
    #5 Eclipse1701d, Nov 26, 2014
  6. GregP507

    GregP507 Senior Member

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    Try bypassing the fuse, the relay, then the motor-controller, to see if that makes the motor run. That pinpoints the bad component. If the motor itself won't run, even with direct power, it needs replacing.
     
    #6 GregP507, Nov 26, 2014
    Last edited: Nov 26, 2014
  7. Libertydreams

    Libertydreams Junior Member

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    Thank you GregP, That is a great way to pinpoint my issue and thanks for the diagram.
     
    #7 Libertydreams, Nov 26, 2014
  8. Easy Rider 2

    Easy Rider 2 Senior Member

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    I don't understand.
    A really GREAT post with solid information and a good diagram of the heater fan system.................
    and now those parts are GONE.
    What the hell ??
     
    #8 Easy Rider 2, Nov 26, 2014
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