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Fan on Carrier roof top ac makes loud noise on auto or high but not on low

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  • mamunszone
    mamunszone May 11, 2010

    What kind of noise ? May b from motor/Compressor. Did u check the noise where it comes from ?

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This one is carrier AC with bad blower motor. Hope This Helps.

Posted on May 19, 2016

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Sounds like bearing is out on motor or blades on motor are out of balance you may have to replace both it can also be bearings in the evaporator motor if its a package unit or even something caught in the evap squirl cage.hope that helps you

Posted on Sep 29, 2009

  • jerry bedell Sep 29, 2009

    sounds like bearing is out on motor or blades on motor are out of balance you may have to replace both it can also be bearings in the evaporator motor if its a package unit or even something caught in the evap squirl cage.hope that helps you

  • jerry bedell Sep 29, 2009

    sounds like bearing is out on motor or blades on motor are out of balance you may have to replace both it can also be bearings in the evaporator motor if its a package unit or even something caught in the evap squirl cage.hope that helps you

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