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  1. #1
    Join Date
    Jun 2008
    Posts
    11

    Trane heat pump/ a/c unit--odd noise

    My heat pump/ ac unit, trane model 14i, makes a loud stacco-like noise for about 5 seconds, when it kicks on. It doesn't do this everytime, but sporadically.

    It makes 4 or 5 loud bam-bam-bam-bam in quick succession, then runs normally.

    Is there some valve that is sticking at start up?

  2. #2
    Join Date
    Jun 2008
    Location
    Cincinnati, Ohio
    Posts
    2,176
    Call your preferred HVAC professional. Could be warranty if under 5 years old

  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,595
    Where is the indoor unit in relation to the outdoor unit?

  4. #4
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,769
    Call your service comapny.
    Contractor locator map

    How-to-apply-for-Professional

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

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