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Columbia no heater motor

Discussion in 'Freightliner Forum' started by Dane R, Jan 11, 2014.

  1. Jan 11, 2014 #1
    Dane R

    Dane R Bobtail Member

    3
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    Jan 11, 2014
    0
    Hello back in the summer the heater motor would quit for a few minutes then come back on , now it wont blow at all , anyone know where to start looking?

    Thanks Dane
     
    Dane R, Jan 11, 2014
    Dane R, Jan 11, 2014
    #1
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  3. Jan 11, 2014 #2
    baha

    baha Road Train Member

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    Jul 25, 2013
    ga
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    CK. fuse,cir.breaker top right dash.
     
    baha, Jan 11, 2014
    baha, Jan 11, 2014
    #2
  4. Jan 11, 2014 #3
    WitchingHour

    WitchingHour Road Train Member

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    Apr 1, 2011
    Broomfield, CO
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    Yeah, start with the simplest spot, as described above. Although when a fuse or breaker goes out, the component goes out instantaneously... this one showed warning signs beforehand, which leads me to believe it'll be the blower motor itself.
     
    WitchingHour, Jan 11, 2014
    WitchingHour, Jan 11, 2014
    #3
    CondoCruiser Thanks this.
  5. Jan 12, 2014 #4
    Richter

    Richter Road Train Member

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    Feb 13, 2012
    Philadelphia Pa
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    check the connection on the blower motor, could be corroded or loose, but if intermittent its prob not a fuse. Might be the actual motor. How many miles are on the truck? If its old the blower motors do die.
     
    Richter, Jan 12, 2014
    Richter, Jan 12, 2014
    #4
  7. Jan 12, 2014 #5
    Dane R

    Dane R Bobtail Member

    3
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    Jan 11, 2014
    0
    All fuses have been checked, and the relays were swaped with known working ones. truck is 05 and has 390,000 even gave the motor a good thump with a rubber mallet. lol

    also is it common for these trucks heater motor NOT to work till it builds air pressure ?
     
    Last edited: Jan 12, 2014
    Dane R, Jan 12, 2014
    Dane R, Jan 12, 2014
    #5
  8. Jan 13, 2014 #6
    WitchingHour

    WitchingHour Road Train Member

    3,422
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    Apr 1, 2011
    Broomfield, CO
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    No... those are electronic.
     
    WitchingHour, Jan 13, 2014
    WitchingHour, Jan 13, 2014
    #6
  9. Jan 13, 2014 #7
    CondoCruiser

    CondoCruiser The Legend

    19,726
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    Apr 18, 2010
    Tennessee
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    To me it sounds like the breaker kicking and resetting after it cools down.

    Most likely cause the brushes in the blower motor were on their last leg and it finally quit.

    You can unlplug it and make sure you have 12V coming to it with the key and fan switch on before buying one.
     
    CondoCruiser, Jan 13, 2014
    CondoCruiser, Jan 13, 2014
    #7
  10. Jan 14, 2014 #8
    ChiefTruck

    ChiefTruck Bobtail Member

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    Dec 28, 2013
    Northern New Jersey
    0
    I had this exact same problem in an FLD. I replaced the relays and breakers with known good ones, no go. I replaced the speed switch, no fix. I Then went to the blower motor itself, would not run, gave it a thunk with my fist and it started running just fine. Replaced blower motor and all is well.
     
    ChiefTruck, Jan 14, 2014
    ChiefTruck, Jan 14, 2014
    #8
  11. Jan 15, 2014 #9
    Dane R

    Dane R Bobtail Member

    3
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    Jan 11, 2014
    0
    Works fine with new motor , thanks for all your input . Dane R Pickerell
     
    Dane R, Jan 15, 2014
    Dane R, Jan 15, 2014
    #9
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