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  1. #1
    Join Date
    Jun 2005
    Posts
    2
    My mother's neighbor called her and told her she heard a loud bang and saw smoke pouring out of my mom's outside unit. My mother's AC still seems to be cooling/compressor sounds fine. Any ideas on the possible cause? Thanks for any help.

  2. #2
    Join Date
    Nov 2001
    Location
    Seattle, WA
    Posts
    7,744
    What's the old saying about where there is smoke, there is fire!

    Why take a chance? Turn the thing completely off and have someone check it immediately.
    "The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
    - Alexis de Toqueville, 1835

  3. #3
    Join Date
    Feb 2004
    Location
    Maine
    Posts
    483
    Maybe fan motor or cap went? Shut it off and call for service before something more expensive like the compressor goes.

  4. #4
    Join Date
    Mar 2002
    Location
    Concord, CA
    Posts
    2,633
    "smoke pouring" implies a lot of it. It may have popped a severe refrigerant leak. When the charge blows suddenly through a catastrophic leak it will look kind of like a bunch of smoke coming out.

  5. #5
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    Possibly blew the terminals on the compressor, that would explain the pop and "smoke" which most likely was the refrigerant, it wouldnt cool at all though.

  6. #6
    Join Date
    Sep 2004
    Posts
    3,157
    could have been a rat or other small rodent that just got into a bad spot at a bad time -but not being there to look at it , thats only a guess

  7. #7
    Join Date
    Nov 2003
    Posts
    125
    All things electrical are powered by smoke.

    If you let the smoke out...it don't work no more!

  8. #8
    Join Date
    May 2005
    Posts
    428
    Or the neighbor could be hallucinating. did i spell that right?

  9. #9
    Join Date
    Sep 2002
    Posts
    3,708
    When they blow a pin like that do you guys feel that is was just something wrong internally in the compressor or is
    it from a partial restriction in the refrigeration circuit
    couple with a overcharge system?

    Speaking of,I no longer see many fusible link on condenser anymore...why?

  10. #10
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    15,826
    Originally posted by hvacguy1075
    Or the neighbor could be hallucinating. did i spell that right?
    Man I can remember those days kinda miss the old purple microdot, but I still get the flashbacks.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  11. #11
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Are you sure its not just still cool in the house, or is the system actually still blowing cold air?

    I have run across compressors that blew out the termindal block but were still running twice.
    Wierdest thing to find one still running, but they definatly were not cooling.

    Definatly get it checked.
    If more government is the answer, then it's a really stupid question.

  12. #12
    Join Date
    Jun 2005
    Posts
    2
    Thanks everyone for your replies--when I talked to my mother yesterday she informed me that she now realizes that her system definitely was NOT cooling the house after the smoke incident (she came to this conclusion after coming home from a doctor's appt and finding the house temp at 84 degrees !!)

    She had in fact called her service rep, but also mistakenly told them she thought the system was still working--they told her to go ahead and run it and they'd be out Monday. In light of your responses and her realization that the system was no longer working, I told her to shut it down for safety's sake.

    I'll let you know what they find went wrong--hopefully it won't require a whole new system for her.



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