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    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #1

    May 19, 2007, 02:07 PM
    A/C Fan Emitting Loud "Whrrrr" Sound and spins slowly
    Hello,

    My A/C Fan was emitting a loud "Whrrrr".
    Which gets loud, then soft, the loud again.
    Almost like the sound is oscillating. And
    Once in a while it starts "coughing", then
    It's back to the "Whrrr"s again.

    Well, today the blades stopped spinning
    (actually it is spinning, so slow that it has
    Yet to complete one complete turn) and
    The sound is still there.

    Any suggestions?:confused:

    Thanks,
    John Christos
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #2

    May 19, 2007, 02:08 PM
    Are you talking about the fan on the outdoor unit?
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #3

    May 19, 2007, 02:10 PM
    It's a standard stand alone fan.
    Not part of a air-con.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #4

    May 19, 2007, 02:10 PM
    It sounds to me like the bearings may be bad on the fan motor. Shut the power off to the unit and give it a spin, does it turn free or is it tight?
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #5

    May 19, 2007, 02:12 PM
    The blade spins freely and it can slide a bit back and forth.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #6

    May 19, 2007, 02:14 PM
    How about from side to side? The shaft will have a little give to it when you pull on it but it should not move side to side at all.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #7

    May 19, 2007, 02:14 PM
    What type of motor is it? Does it have a capacitor?
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #8

    May 19, 2007, 02:16 PM
    I'm still a little confused about what type of fan this is. Is it an indoor blower fan?
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #9

    May 19, 2007, 02:20 PM
    Sorry, I have no idea if it has a capacitator. :D The blade does
    Not move left and right. Only back and forth.

    The fan looks exactly like this:
    Sell Powerful Fan (Foshan City Nanhai Feixing Electrical Appliance Industry Co., Ltd.,China)

    Hopefully this helps. :)
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #10

    May 19, 2007, 02:24 PM
    Ok, I thought the fan you were talking about was in your heating and air conditiong system, it may be a bad motor it sounds like if the motor isn't locked up then it has shorted windings.
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #11

    May 19, 2007, 02:26 PM
    Could it be clogged by any chance? Maybe I should open the motor
    Housing up.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #12

    May 19, 2007, 02:30 PM
    Will it start if you let it sit and cool down?
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #13

    May 19, 2007, 02:42 PM
    Nope.. it's completely cold but no difference.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #14

    May 19, 2007, 02:47 PM
    I'd say the motor is bad. Thease things aren't really made to be repaired.
    ashbeats's Avatar
    ashbeats Posts: 7, Reputation: 1
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    #15

    May 19, 2007, 02:52 PM
    Thanks. :) Well, I guess my next stop would be the
    Local store for a new fan then.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
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    #16

    May 19, 2007, 02:57 PM
    Be sure in the future to help get the most life out of your fan, take it apart and clean any dust and or dirt and oil the motor if possible. Good luck with your purchase and if you need help in the future we are here!

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