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  1. #1
    Join Date
    Mar 2012
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    85

    Heat Pump noise WITH SOUND CLIP for you to listen....

    I had a new Amer. Std. Heritage 15 2.5T heat pump with a TAM 7 air handler installed in the summer. In AC mode there is no abnormal sound. I turned the heat on for the first time about two weeks ago and now when it runs in heat mode I hear a sound that seems to be resonating through the line set. The air handler is in the basement and I can really hear it down there. The heat pump is working fine. The dealer came out and verified this is normal in heat mode. What do you think? Is it normal or not? I have included a link for you to listen to the sound I recorded. The recording was taken right along side the lineset in the baesement. 20 seconds into the audio clip you will hear the outside unit shut off. Thanks for all that listen to the clip and let me know their technical opinion.


    http://soundcloud.com/raul-e-gomez/amer-std-heatpump

  2. #2
    Join Date
    Aug 2012
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    2,663
    Def. sounds like a switch opened somewhere.

  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
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    34,170
    Not unusual to have noise in heat mode instead of cool mode since when heating the hot gas from the compressor is sent straight inside. Compressor noise tends to transmit straight in. Rare to hear of that with a recip, more commonly from a scroll compressor.

  4. #4
    Join Date
    Mar 2012
    Posts
    85
    Does this mean the recip compressor has a possibility of premature failure or is this just a "sound" by product versus a defect.

  5. #5
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
    Posts
    3,371
    I can definitely hear mechanical noise (and the sound of refrigerant flow) transmitted through the lineset from the 2 reciprocating compressors in my Trane heat pump, especially in heat mode. I don't find anything unusual with the sound clip you posted.

  6. #6
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
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    7,038
    I don't hear anything unusual

  7. #7
    Join Date
    Aug 2012
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    I heard it shut down at the end of the clip, but maybe I am just an idiot for thinking that that was the sound he was talking about.

  8. #8
    Join Date
    Mar 2012
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    85
    Quote Originally Posted by toocoolforschool View Post
    I heard it shut down at the end of the clip, but maybe I am just an idiot for thinking that that was the sound he was talking about.
    Yes, the "questionable sound" part of the clip is about 20 seconds long. The outdoor unit shut off at that point and the remaining few seconds is of silence.

  9. #9
    Join Date
    Jul 2001
    Location
    Anderson,SC
    Posts
    997
    I slowed down the sound and I heard " Hard to stop a Trane".

    When played backwards I heard " Goodman suck".

    STUD

  10. #10
    John Culpepper's Avatar
    John Culpepper is offline CHANGE YOUR EMAIL ADDRESS Professional Member*
    Join Date
    Oct 2007
    Location
    Austin Texas
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    1,776
    Sounded okay to me. My dog didn't like me playing the sound clip though.
    Nemo me impune lacessit.

    How much blood do I have to bathe in to get clean?

    Don't look down on anyone unless you're helping them up.

  11. #11
    Join Date
    Mar 2012
    Posts
    85
    Quote Originally Posted by HVAC/Stud View Post
    I slowed down the sound and I heard " Hard to stop a Trane".

    When played backwards I heard " Goodman suck".

    STUD
    LOL!

  12. #12
    Join Date
    Jul 2010
    Location
    nebraska
    Posts
    1,629
    It's normal. The sound will be quieter once it gets cold out.

  13. #13
    Join Date
    Mar 2012
    Posts
    85
    Thanks to all that replied. I feel better now. On a side note my old heat pump had a Copeland scroll and the neighbor just got a brand new Carrier with a Copeland scroll as well. Both those units sounded the same in heating or cooling mode. Is it because the my unit has a recip? Just curious.

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