sleeper AC question

Discussion in 'Kenworth Forum' started by clumsy calamity, Sep 30, 2013.

  1. Heritage661

    Heritage661 Bobtail Member

    21
    3
    Apr 4, 2016
    0
    Thank you so much but this year of truck doesn't have one we found out it was the expansion vavle thanks again hopefully this will help someone
     
    dancecanyon Thanks this.
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  3. Heritage661

    Heritage661 Bobtail Member

    21
    3
    Apr 4, 2016
    0
    This year of truck doesn't have that but we found out that the sleeper has an expansion vavle I hope this helps someone and thank you so much for your time in responding.
     
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  5. Vinni

    Vinni Bobtail Member

    12
    2
    Aug 22, 2013
    Houston,TX
    0
    Just want to say thanks! Mine just recently started acting up also...Cool in the front and warm in the back. I thought it was my expansion valve but after shutting down the heater valve off the engine it blows cold...so I checked the servo and it was working. ..so it has to the control valve it connects to....
     
  6. WitchingHour

    WitchingHour Road Train Member

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    Apr 1, 2011
    Broomfield, CO
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  7. Subzero51

    Subzero51 Bobtail Member

    2
    1
    Jul 25, 2017
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    Lady trucker tell you how to fix it yourself go to the hardware store tell them you need brass water cut off values with pipe inlets and out let short one's. To make sure that you get the right ones same size water hose 3/8 . You will need 4 hose clamps cut the antifreeze line's there right on the frame. One goes to the top to the front the other to the rear to the bunk put water cut off value in between those lines make sure that you clamp off the line's before cutting them drain out the antifreeze from the bunk hose and the front hose cut off the water completely turns your A/C into home AC system blow ice cold no matter how hot it is out side 120 degrees mine still blowing 45 degrees hopefully this will help you out
     
    jeastonjr Thanks this.
  8. Swiftroller

    Swiftroller Bobtail Member

    7
    2
    Aug 12, 2017
    0
    Don't forget your sleeper AC has a big paper filter you need to change. Mine was luke warm air then I changed my cab and bunk air filters and the air actually got cold in the sleeper in again.

    But it's not nearly as cold as the front of the cab, my sleepers lucky to be 74 in the back with full AC on during summer, used to freeze me out with the bunk curtains closed now it's #### and I have to close just the front cab curtains and have both AC and still not cold. I almost bought a stand up unit and vented the heat out the passenger escape window lol. But summers almost over so I got all fall and winter to have KW fix it on warranty.
     
  9. Charles Hill

    Charles Hill Bobtail Member

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    Apr 18, 2018
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    I hear my account blower in sleeper blowing but hardly no air coming out the vents...about to burn up
     
  10. Lockport

    Lockport Light Load Member

    162
    109
    Mar 26, 2011
    Lockport, MB, CAN
    0
    There's a lot of misinformation in this thread. First off, let's clsrify: there's no blend door in the sleeper.. The blend door in the cab changes where the air blows. An electric actuator typically controls the position in unison with the vent selector. You sleeper has an actuator too but it opens and closes to varying degrees the amount of coolant flowing to the sleeper. When these fail and are stuck open and you have valves on those lines you have another option to close those lines. But mostly we're not addressing the A/C switch in the sleeper. A/C in the cab and have the switch Off in the sleeper and although on cold it's just an ambient temperature without heat. Once the S/C switch is activated an expansion valve them allowed the chilled freon to flow to sleeper and. VOILA, you have A/C
     
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