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Fan for heater

Discussion in 'Peterbilt Forum' started by Franz, Sep 30, 2011.

  1. Sep 30, 2011 #1
    Franz

    Franz Bobtail Member

    3
    0
    Sep 15, 2011
    Lakeland, FL
    0
    I have a 98 pete 379. My heater/ac fan does not work on high. Is there a resister for that fan or is there something else? Could it be the switch?

    Thanks
    Fran
     
    Franz, Sep 30, 2011
    Franz, Sep 30, 2011
    #1
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  3. Oct 3, 2011 #2
    kustom

    kustom Light Load Member

    59
    25
    Aug 11, 2010
    coos bay, oregon
    0
    I would check power coming from the switch first in the high position. The fan power bypasses the resister in high. Obviously the fan is good and the wiring is good or you would have no fan at all. It's been awhile since i've gotten to play with this part of the pete wiring but i hope this helps.
     
    kustom, Oct 3, 2011
    kustom, Oct 3, 2011
    #2
    Franz Thanks this.
  4. Jan 5, 2013 #3
    HeavyWrecker

    HeavyWrecker Bobtail Member

    13
    1
    Jan 3, 2013
    0
    There is a resistor just above the blower motor in the passenger dash behind the glove box, but like kustom said, on high, it's full voltage to the fan and bypasses the resistor.
     
    HeavyWrecker, Jan 5, 2013
    HeavyWrecker, Jan 5, 2013
    #3
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