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  1. #1
    My partner and I were called to a friends house to work on their residential unit. The Cond fan and Compressor share the same start cap, and one "leg" of the cap was burned out, and the Comp was not running. It was a 35 microfarad, but we only had a 25 and a 10 microfarad, so we wired them up together as a repacement, the unit started up fine, and was blowing out hot air, with a low side press of about 85, on a 95* day.

    A few hours later, the owner of the house, who is a friend of the family, called and said that air was being blown out the sides of the condenser rather than the top, and that he's sure that it used to blow it out the top in the past.

    Did we somehow reverse the direction of that cond fan or switch the run and start windings?

  2. #2
    Join Date
    Dec 2002
    Posts
    61
    So what company do you and your partner work for?
    "It is what it is."

  3. #3
    Join Date
    Dec 2002
    Posts
    61
    You probably forgot to check the flux capacitor.
    "It is what it is."

  4. #4
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    if the fan and compresor used the same cap there should have been a nother number on the old cap for the fan. it was a daul cap and you have to put a separate cap in for the fan motor rated for the motor.

  5. #5

    Run Cap

    should be a run cap, and sounds like you got it wrong.

  6. #6
    The original was a 35/5 microfarad. We used a 10 and a 25 uF capacitor, I believe the 25 uF was a 25/5.

    I'm thinking the Comp gets the 35uF and the Cond fan gets the 5uF?

    Would using the wrong size cap make the fan spin the wrong way though?

    I just graduated, so I'm out with a buddy that's retired, but still does side jobs, so I'm just a beginner.

  7. #7
    I'm gonna head over there in the morning and check the wiring diagram. I didn't do the wiring, I just watched and tried to learn something.

  8. #8
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    reverse the cap wires for the fan motor and it should run the correct way

  9. #9
    Join Date
    Jul 2002
    Posts
    962
    You and your friend need to pay more attention. When you were putting away your tools didn't you notice anything hitting you in the face?

  10. #10
    Join Date
    Dec 2002
    Posts
    61
    What would that be Chill?
    "It is what it is."

  11. #11
    Join Date
    Sep 2004
    Posts
    3,157
    What would that be Chill?

    is that a test question.....hmmmmmm let me see.....

    That would be air blowing out of the condenser instead of being drawn into it

    The original was a 35/5 microfarad. We used a 10 and a 25 uF capacitor

    lets see if I remember correctly, connecting a 25 and a 10uf cap will not = 35uf

  12. #12
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,935
    Originally posted by ct2


    The original was a 35/5 microfarad. We used a 10 and a 25 uF capacitor

    lets see if I remember correctly, connecting a 25 and a 10uf cap will not = 35uf
    It will if they are wired parralel, but not in series.
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    How many times must one fix something before it is fixed?

  13. #13
    Join Date
    Jul 2002
    Posts
    962
    I can't beleive someone would over look something so obvious. Two people no less!

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