Air Temperature from the vents

  1. nizarz

    nizarz Senior Member

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    I noticed today that when I have my air temp at the lowest temp setting, its cold. However as soon as I turn the dial to 16c the air comes out warm. Theres a massive temperature difference between the lowest setting and increasing the temperature by 1 degree. Is this normal? I wanted cool air but not cold air and there doesn't seem to be a way of doing that even when the AC is turned on.

    Can anyone tell me if this is normal or is there a malfunction with my cars blend doors for the fans. Thanks!!
     
  2. Gruber

    Gruber Senior Member

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    Definitely not normal. I had this kind of behavior in my CR-V intermittently years ago, but then it somehow reset itself and there were no problems since then. I would try to exercise the AC controls, turn it off and on, maybe it will "snap out of it".
     
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  3. OP
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    nizarz

    nizarz Senior Member

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    Ive had a couple of other issues where, like you said, it resolved itself so Ill check it out when I leave work. Thank you
     
  4. mvela

    mvela Senior Member

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    Was it cold outside when you were trying this?
     
  5. OP
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    nizarz

    nizarz Senior Member

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    yes sir. it was 0c here in Ottawa
     
  6. Rickmeister 48

    Rickmeister 48 Senior Member

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    I can say that with my car, actually both the 17 and the 18, that there is really little difference between the lowest setting and say 68 degrees. Same going there other way not much increase from going from say 75 to hi.
     
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  7. mvela

    mvela Senior Member

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    I have had this same problem since I bought my car. If the temp outside drops below about 40F then the a/c will blow hot no matter what I set the temp for, unless I set it for “Lo” and then it’s just freezing cold. So I have no in between. It’s either cold as ice or hot like fire. But if it’s above say 50F then it starts to work normal. I really don’t know why the outside air temp affects my a/c in the car, but it does.
     
  8. OP
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    nizarz

    nizarz Senior Member

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    Yes this is exactly what Im having
     
  9. mvela

    mvela Senior Member

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    I see yours is an lx as well. My hatchback ex doesn’t do this. Only my lx does this. I really don’t understand how the outside temperature has anything to do with the inside air temp settings. I’ve been needing to take it in to the dealer to see if they can fix it. But I would need to take it when it’s cold out. I live in southeast Texas so it’s rarely that cold here.
     
  10. turbo lover

    turbo lover Senior Member

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    That seems normal. The temperature setting you are adjusting is for the cabin temperature, not the air vent temperature. Setting the temperature to "Lo" means you want the cabin to be as cold as possible, so cold air will come out of the vents. Setting the temperature to "15.5" or whatever is one step above "Lo" means you want the cabin at that temperature, so warm air will come out of the vents until it hits 15.5 degrees inside your car. It's similar to setting the temperature on the thermostat inside your house. If you set your house at 20, in winter the air that comes out of the vents will be much warmer than 20. In summer, the air that comes out will be much cooler than 20.
     
  11. mvela

    mvela Senior Member

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    But that’s the thing, it continues to blow hot air the whole time. So it’s either freezing cold or uncomfortably hot. The A/C in a car is different than the A/C in your house. In the house the heat and cold work independent from one another. In your car when the A/C is on the temperature is controlled by baffles that will allow more cool air to mix with the hot so there are some cool or warm settings. But there is only blazing hot or freezing cold. But this only occurs when it’s around 40F or below outside. It’s weird
     
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  12. turbo lover

    turbo lover Senior Member

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    How long is "the whole time"? Does the interior temperature ever reach the temperature that you have set? If you have 65 set but it keeps heating until 75 or above then maybe there's a problem with your interior temperature sensor.
     
  13. mvela

    mvela Senior Member

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    Yes I can set it for 58 and it will continue to blow super hot even when I’m starting to sweat. It almost seems like it’s measuring outside air and not inside air
     
  14. Giltibo

    Giltibo Senior Member

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    The "Lo" (15 degrees) setting eliminates all heat, and activates Max A/C, no matter what the cabin temp sensor senses. At 15.5, the temperature sensor is reactivated.
    The "Hi" (25 degrees) does the reverse: Max Heat, no matter what the cabin temp sensor senses.
    So, yes it is normal.
     
  15. mvela

    mvela Senior Member

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    Yes I understand how the Hi and Lo work. But in between it uses baffles to control how much heat is mixed with the A/C. That is how you can select 70 and it’s not blazing hot or freezing cold coming out the vents. It’s a blend of the heat and A/C. This is the part that our vehicles are having issues with.
     
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