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HVAC question that seems Volvo specific?

Discussion in 'Volvo Forum' started by oldyama63, Apr 16, 2022.

  1. Apr 16, 2022 #1
    oldyama63

    oldyama63 Bobtail Member

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    Apr 16, 2022
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    I've only driven 2 volvos in my life. One was a 2012 and now a 2009. Fleet trucks, old Dominion and now Frito lay. Usually drove a Freightliner at OD. But both volvos share the same odd thing. (To me anyway)
    When you want to change the temp in the cab, either warmer or cooler, it takes several minutes to feel a difference. Not warm enuf in Kentucky to be using the AC, just turning up or down the temp control.
    Is this common or have I found the only 2 in the world that do it?
     
    oldyama63, Apr 16, 2022
    oldyama63, Apr 16, 2022
    #1
    Another Canadian driver Thanks this.
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  3. Apr 20, 2022 #2
    nasriza

    nasriza Road Train Member

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    this is very common due to volvo not running blend door they actually run coolant valve that will shutt off coolant circulation in cab and it takes a min for the heater core to cool down or heat up FRL will run blend door and they will switch from hot to cold side a lot quicker response.
     
    nasriza, Apr 20, 2022
    nasriza, Apr 20, 2022
    #2
    Another Canadian driver and KB3MMX Thank this.
  4. Apr 20, 2022 #3
    oldyama63

    oldyama63 Bobtail Member

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    Thanks for the info. Have to say I prefer the freightliner way.
     
    oldyama63, Apr 20, 2022
    oldyama63, Apr 20, 2022
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    Another Canadian driver Thanks this.
  5. Apr 20, 2022 #4
    nasriza

    nasriza Road Train Member

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    most people do
     
    nasriza, Apr 20, 2022
    nasriza, Apr 20, 2022
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    Another Canadian driver Thanks this.
  7. May 4, 2022 #5
    oldyama63

    oldyama63 Bobtail Member

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    Well I don't have to put up with the odd HVAC behavior anymore. Last night I was going down the hiway with a Regen going on. I was wrong about the year, it's a 2011. Or it was I guess. It caught fire and burned up.
     
    oldyama63, May 4, 2022
    oldyama63, May 4, 2022
    #5
    Grumppy, Another Canadian driver and KB3MMX Thank this.
  8. May 12, 2022 #6
    KB3MMX

    KB3MMX Road Train Member

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    Problem solved, new truck lol
     
    KB3MMX, May 12, 2022
    KB3MMX, May 12, 2022
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    Another Canadian driver Thanks this.
  9. May 12, 2022 #7
    dbny5000

    dbny5000 Light Load Member

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    I wonder how that coolant valve works and if it's the reason that hot air will not blow in the winter. Only way to stay warm is to hit the recirculation button and blow hot air from the sleeper.
     
    dbny5000, May 12, 2022
    dbny5000, May 12, 2022
    #7
  10. May 13, 2022 #8
    nasriza

    nasriza Road Train Member

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    Usually you can not stay warm because the heater core tends to get plugged and looses efficiecy over time if heater core is new dont need to hit recirc or anything it will make it hot inside but over time, they tend to get plugged and do not heat up as well.
     
    nasriza, May 13, 2022
    nasriza, May 13, 2022
    #8
    dbny5000 Thanks this.
  11. May 13, 2022 #9
    Siinman

    Siinman Road Train Member

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    My 2014 670 would run you out of the cab in the winter if you turned it up.
     
    Siinman, May 13, 2022
    Siinman, May 13, 2022
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    dbny5000 Thanks this.
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