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Cab blower only works on High

Discussion in 'Peterbilt Forum' started by Ranger14, Apr 11, 2015.

  1. Apr 11, 2015 #1
    Ranger14

    Ranger14 Bobtail Member

    2
    0
    Apr 11, 2015
    0
    I replaced the cab blower motor,resister and speed control switch. Now I only have high speed on the fan.I have checked all the fuses and relays I can find and found nothing wrong. Why do I only have high speed?
    Any help would be greatly appreciated.Thanks.
     
    Ranger14, Apr 11, 2015
    Ranger14, Apr 11, 2015
    #1
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  3. Apr 11, 2015 #2
    WitchingHour

    WitchingHour Road Train Member

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    Apr 1, 2011
    Broomfield, CO
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    Does it only come on with the switch at the high setting, or is it blowing on high throughout the switch settings?
     
    WitchingHour, Apr 11, 2015
    WitchingHour, Apr 11, 2015
    #2
  4. Apr 12, 2015 #3
    KW PARTS

    KW PARTS Bobtail Member

    4
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    Apr 29, 2014
    0
    The fan speed is controlled by the resistor. If it only works on HIGH speed the resistor is bad.
     
    KW PARTS, Apr 12, 2015
    KW PARTS, Apr 12, 2015
    #3
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