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  1. #1
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27

    Gibson Heat Pump Moan

    bought another home and it already had a brand new (Gibson) heat pump and air handler installed
    H/P Model #: JT4BE-030K
    AIR HANDLER Model #: B6EMMX30K-B

    Over the last couple weeks, later in the evening around 10pm or 11pm, when it was colder, guess around 30 degrees or so, I've heard this loud moaning sound coming from the vicinity of the heat pump. The sound lasted about 10 seconds or so. Last week it was really loud and felt like it vibrated the floor.

    The line set does run beneith the floor where I thought I felt the vibration and after viewing the lineset, its about an inch or so away from floor joist and subflooring.

    Tried googleing the symptom and seems like there could be somthing going on with line pressure and reversing valve. and possible sticking of reversing valve. Dont really understand all the stuff I've read.....

    I realize that this is hard to diagnose, since you arent here to witness this "MOANING" sound. Its happened several times over the last 3 weeks or so and has only happened when it COLD outside.

    Hope this is enough information for you.

    Thank you all for your time. I do appreciate your assistance.

  2. #2
    Join Date
    Mar 2012
    Location
    West Chester, PA
    Posts
    511
    Have you ever lived with a heat pump? It could just be the reversing valve shifting for defrost.

  3. #3
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    @ Adillon - Yes I have. Previous home had a Trane installed 2009. Never once was there a maon like this, just the swoosh sound

  4. #4
    Join Date
    Feb 2006
    Location
    Float'N Vally, MS
    Posts
    1,853
    You might want to have someone check out the system for airflow or charge issues.

    By the way, I used to have a neighbor who had a candy red nova. The whole under carriage was chromed.
    The kids starting fighting over it and he sold it to his fishing buddy for 3k.

    Missed that one.
    Life is too short, Behappy!
    TFMM

  5. #5
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    Quote Originally Posted by behappy View Post
    You might want to have someone check out the system for airflow or charge issues.

    By the way, I used to have a neighbor who had a candy red nova. The whole under carriage was chromed.
    The kids starting fighting over it and he sold it to his fishing buddy for 3k.

    Missed that one.
    Would you mind being more specific in regards to airflow and charge issues.

    BTW - sold mine for 6k. it was a 69 prostreet, back halved car with a SB 302. About 420HP

  6. #6
    Join Date
    Feb 2006
    Location
    Float'N Vally, MS
    Posts
    1,853
    Quote Originally Posted by purplenova View Post
    Would you mind being more specific in regards to airflow and charge issues.

    BTW - sold mine for 6k. it was a 69 prostreet, back halved car with a SB 302. About 420HP
    I have seen (not often) HP systems having low airflow (duct work issues, setup issues etc.) raise the pressures higher than normal, but not high enough to trip the unit, cause this on shut down. Also overcharge 'may" do this. Not saying this is your problem. Just need to get it checked to eliminate these possibilities.
    Life is too short, Behappy!
    TFMM

  7. #7
    Join Date
    Aug 2012
    Posts
    2,720
    Sounds like your line set is vibrating against the frame of the house, try moving it off of the frame very carefully.

  8. #8
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    Quote Originally Posted by toocoolforschool View Post
    Sounds like your line set is vibrating against the frame of the house, try moving it off of the frame very carefully.
    I can see that a vibration sound or tapping could occur, but not a loud MOAN.

  9. #9
    Join Date
    Aug 2012
    Posts
    2,720
    you have to start somewhere, eh ? /

  10. #10
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    Quote Originally Posted by toocoolforschool View Post
    you have to start somewhere, eh ? /
    you are correct....sorry

  11. #11
    Join Date
    May 2004
    Location
    south louisiana
    Posts
    3,289
    can you record the sound for hvac company to hear?

    most cell phones have this ability. then play it back for
    tech to hear.

    just my .o2
    best of luck
    The cure of the part should not be attempted without the cure of the whole. ~Plato

  12. #12
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    Quote Originally Posted by energy_rater_La View Post
    can you record the sound for hvac company to hear?

    most cell phones have this ability. then play it back for
    tech to hear.

    just my .o2
    best of luck
    We could try but we never know when it will happen. Like last nite, why I was at my 2nd job, I got a text from my wife that it happened 4 times.

    Unfortunately, she was not able to give specifics on what time each "moan" took place.

    So now I get to call the installer back with that bit of info

  13. #13
    Join Date
    Jul 2009
    Location
    SW Ohio
    Posts
    27
    Quote Originally Posted by toocoolforschool View Post
    Sounds like your line set is vibrating against the frame of the house, try moving it off of the frame very carefully.
    Would it hurt the lineset to stap in down against the floor joist so it cannot move

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