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  1. #1
    Join Date
    Nov 2004
    Location
    Atlanta, Ga. burbs
    Posts
    281

    Question

    Not sure how to ask this question in an educated form so here goes:


    When a heat pump goes into defrost mode:

    a- Is this some form of going into A/C mode?

    b- Does it produce condensation that would drip from the air handler thru the drain pipe?

    I'm the dude that has the water sounding drip drip drip in the wall. The copper lines are adjacent to the condensation drip pipe.

    Thanks for allowing HO's to ask questions.

  2. #2
    Join Date
    Jul 2003
    Location
    Massachusetts
    Posts
    288
    yes. but everything is now reversed. so in a way, the condensation that is usually draining from the interior with ac, is now the frost buildup on the exterior unit in heat. kind of.

  3. #3
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    Yes the system does switch to cooling mode to defrost, Usually this is for only a few minutes, not long for enough condensation to form and flow out the drain pipe, any condensation that does form on the coil will evaporate shortly after the system returns to heating.

  4. #4
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,770
    Do you have a humidifier on your heat pump.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Jun 2001
    Posts
    3,916
    It would help us to know where your unit is located? attic,closet,basement.

    Where does the drain line go to ? bathroom sink, drain pipe from foundation, straight pipe through roof in attic.

    Is there a humidifier?

  6. #6
    Join Date
    Oct 2004
    Posts
    3,400
    Hello again, West_Seth.

    A) Do you have a humidifier?

    B) Has your installer actually heard this sound?

    C) Was the installer you?

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