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Thread: what is the purpose of the blower motor diode?

  1. #1

    what is the purpose of the blower motor diode?

    I'm having issues with my blower motor drawing too much current. I'm pretty sure it's just old and worn out but looking through the diagrams I can't understand the purpose of the diode wired in parallel to the blower. Can anyone enlighten me?

    http://img18.imageshack.us/i/blowery.jpg
    Last edited by POS carb; 06-05-2011 at 04:56 PM. Reason: image link not working uuuuuugh
    Eric
    3geez member since October 12, 2000
    "All this worldly wisdom was once the unamiable heresy of some wise man." - Henry David Thoreau



  2. #2


    Join Date
    Nov 2004
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    88 LXi
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    Re: what is the purpose of the blower motor diode?

    I think its to keep it running the same direction. Just a guess I'm not that good electrical.

    Whats your motor pulling. I think mines pulls around 12-13amps atm. I wired in a inline fuse and my plug was in really bad shape. Take a look at that.


    wp
    1988 Lxi owner since August 1995
    336k miles running strong!
    Now running E85.

    Oldblueaccord <<< MY YOUTUBE PAGE!

  3. #3


    Join Date
    Nov 2004
    Vehicle
    88 LXi
    Location
    Knoxville TN
    Posts
    5,315

    Re: what is the purpose of the blower motor diode?

    http://ww1.microchip.com/downloads/e...tes/00905a.pdf

    page 3. Pretty good read on DC motors.


    wp
    1988 Lxi owner since August 1995
    336k miles running strong!
    Now running E85.

    Oldblueaccord <<< MY YOUTUBE PAGE!

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