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2020 VNL760 cold A/C air turns hot

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by GurdeepDhaliwal, Jun 30, 2021.

  1. Jun 30, 2021 #1
    GurdeepDhaliwal

    GurdeepDhaliwal Bobtail Member

    1
    0
    Jun 30, 2021
    0
    hey guys my 2020 VNL 760's air goes from nice and cold to warm after i drive about 2 hours or so. any ideas why? i just recently got my A/C charged and there were no leaks. thanks
     
    GurdeepDhaliwal, Jun 30, 2021
    GurdeepDhaliwal, Jun 30, 2021
    #1
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  3. Jun 30, 2021 #2
    Snailexpress

    Snailexpress Road Train Member

    2,675
    6,068
    Apr 28, 2014
    Rocky
    0
    Cold be many things. Are you driving in region with high humidity? Defrost mode, dirty air filter, bad blend door actuator, charged not properly.
     
    Snailexpress, Jun 30, 2021
    Snailexpress, Jun 30, 2021
    #2
  4. Jul 1, 2021 #3
    matmslash

    matmslash Bobtail Member

    10
    9
    May 16, 2014
    0
    Sounds like a compressor going out to me.

    Blend door could be getting stuck, if you are switching air flow from feet to defrost to main vents, and this is the same time you are experiencing it going out. I use www.truckingse.com to find non dealers to fix this stuff on the cheap.
     
    matmslash, Jul 1, 2021
    matmslash, Jul 1, 2021
    #3
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