07 freightliner columbia

Discussion in 'Freightliner Forum' started by shawtpop74, Nov 3, 2016.

  1. shawtpop74

    shawtpop74 Bobtail Member

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    Have a question. Do you need the air dryer for the ac to work
     
    shawtpop74, Nov 3, 2016
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  2. nikmirbre

    nikmirbre Road Train Member

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    No......
     
    nikmirbre, Nov 3, 2016
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  3. shawtpop74

    shawtpop74 Bobtail Member

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    Ok I have no power to ac compressor Any help
     
    shawtpop74, Nov 3, 2016
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  4. nikmirbre

    nikmirbre Road Train Member

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    Do you mean your ac clutch isn't moving?
     
    nikmirbre, Nov 3, 2016
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  5. shawtpop74

    shawtpop74 Bobtail Member

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    Yes it's not engaging ,no fire to the plugs
     
    shawtpop74, Nov 3, 2016
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  6. nikmirbre

    nikmirbre Road Train Member

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    If you have no refrigerant there will be no voltage to your compressor.
     
    nikmirbre, Nov 3, 2016
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  7. shawtpop74

    shawtpop74 Bobtail Member

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    What about to the dryer
     
    shawtpop74, Nov 3, 2016
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  8. nikmirbre

    nikmirbre Road Train Member

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    Your air dryer does just that....nothing to do with the AC.... Ive went all year without my air dryer......then went to Chicago in December and one of my trailer valves paid the price!!!!

    If your air dryer isn't working with winter coming up id replace it....if you run in an area where its cold.
     
    nikmirbre, Nov 3, 2016
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  9. shawtpop74

    shawtpop74 Bobtail Member

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    Ok thanks think I just found my problem. Faulty wire to the switch
     
    shawtpop74, Nov 3, 2016
    #9