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Slight buzz coming from AC system when switching between modes

Discussion in 'Prime Main Forum (2017-2022)' started by Cfrea, Apr 20, 2017.

  1. Cfrea

    Cfrea Junior Member

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    Anyone hear a slight buzz when switching or running the AC? If I switch to the focused flow from driver only or to all seats I hear a slight buzz for a few seconds. Anyone else hear this when running it on colder temps and higher fan speeds?
     
  2. mr88cet

    mr88cet Senior Member

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    Where does the buzz seem to be coming from?


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  3. Cfrea

    Cfrea Junior Member

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    The vent area
     
  4. mr88cet

    mr88cet Senior Member

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    Hmm... The center vents or the outer vents? All of them?

    I've noticed, recently on my 2009, not a buzzing sound as much as a squeaky sound. It seems to be related to the actuators that reconfigure the vents for recirculation or not.


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  5. Cfrea

    Cfrea Junior Member

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    I tested a little further. The sound comes from the passenger area below the vents. Only when the AC is turned up to above 3 notches. Do you have a Prime?
     
  6. mr88cet

    mr88cet Senior Member

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    My P.Prime has not yet arrived, unfortunately; nominally/allegedly 5/15.

    Anyway, do you hear the sound more often under particular circumstances, such as upon switching between circulating and vent, or when the AC kicks in? Do you hear it when the heat pump is heating too?

    Oh, right: I just remembered/noticed that you said it was up on switching between driver-only and all seats. So it might be related to sweater switches off the rear vents... Hmmm...

    I'm thinking the only good solution is to take it to the dealer and give them all the details you can.

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