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  • Two speed fan


    I have a single, 2 speed, fan with 3 wires - a hot for the low speed, a hot for the high speed, and a shared ground. Anyone know how a two speed motor like that behaves if both sides are energized at the same time?

  • #2
    I only use single speed fans.
    But I found this : https://www.google.com/url?sa=t&rct=...-X4R0bmDyiMFub
    In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
    https://forums.edelbrock.com/filedat...?photoid=42773

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    • #3
      i use 2 - 2000 cfm fans and use a controller for the fans

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      • #4
        I can only speak for the one I have, which requires that low speed either be powered on before or simultaneously as high speed. Attempting to start high speed by itself results in a no start.

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