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  1. #1
    Join Date
    Jul 2012
    Location
    Greenville, SC
    Posts
    12

    Loud noise from heat pump

    I am having a heat pump issue also. This morning my heat pump made an ungodly loud noise. I called someone who told me that this was just the unit going into defrost mode. The sound the unit made was loud enough that the neighbors heard it. I don't know if this is normal. I shut the unit off and restarted it later and it started heating with no problems at all. Does anyone know what this could possibly be? I don't know if this sound was really just the unit defrosting or if it was something else. I put my hand on the suction line once it started back up and it was warm and the unit was producing warm air. I can't find anything else online about a noise this loud. It was way more than just a humming noise. Does anyone have any thoughts?

  2. #2
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,765

  3. #3
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,468
    Probably defrost, it can be pretty loud depending on conditions, make and model.

  4. #4
    Join Date
    Jul 2012
    Location
    Greenville, SC
    Posts
    12
    Quote Originally Posted by jtrammel View Post
    Probably defrost, it can be pretty loud depending on conditions, make and model.
    Many thanks. It is a Lennox 14hpx heat pump, only 6 months old.

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