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  1. #1
    Join Date
    Jan 2011
    Posts
    14

    York Furnace High-Pitched Whirring Sound

    A newly installed York TM9T high-efficiency furnace emites a moderately noisy and constant high-pitched whirring sound similar to a vacuum cleaner or hair dryer when the blower is operating. It is loud enough that the customer's televison volume needs to be adjusted when the blower kicks in. The original blower motor was just replaced under warranty because of bad bearings. Strangely enough, the whirring sound occurred only after the new non-variable speed motor was installed. The sound seems to be originating from the furnace blower and is transmitted through the supply and return air ducts. Could the new motor be running at a different speed or rpm and generating too much air volume? The blower off delay is set at 120 seconds, the fan on speed is factory set at 30 seconds and the continuous fan speed is set at low.

  2. #2
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    15,939
    Quote Originally Posted by pocovin View Post
    A newly installed York TM9T high-efficiency furnace emites a moderately noisy and constant high-pitched whirring sound similar to a vacuum cleaner or hair dryer when the blower is operating.
    Probably the inducer motor, they sound exactly like a vacuum cleaner, well really that is what they are, a big vacuum cleaner.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

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  3. #3
    Join Date
    Jul 2000
    Location
    Northern Wisconsin
    Posts
    2,003
    Bad bearings on a brand new furnace blower motor? Guess I've lived right, 25 years in this business and hundreds if not thousands of furnaces installed and never had that happen.

    As I have three different vacuums and they all sound completely different from one another I can't begin to guess what might be the cause. Air noises and/or mechanical noises being generated by the furnace are easily tracked down by the process of elimination. Time to get your installer back again and have them figure it out.
    Use the biggest hammer you like, pounding a square peg into a round hole does not equal a proper fit.

  4. #4
    Join Date
    Jan 2008
    Posts
    2,001
    I would call back the installer, should be able to track it down in no time.
    "Hey Lama, hey, how about a little something, you know, for the effort." And he says, "there won't be any money, but when you die, on your deathbed, you will receive total consciousness." So I got that goin' for me, which is nice. - Carl Spackler

  5. #5
    Join Date
    Apr 2008
    Location
    il
    Posts
    19
    have service tech check for proper draft mtr orfice, and proper sized drain pan. York has a diferent drain pan for each size furnace. They scream if not properly sized.

  6. #6
    Join Date
    Mar 2009
    Location
    central illinois
    Posts
    532
    blower wheel ?
    work to live not live to work.

  7. #7
    Join Date
    Sep 2002
    Location
    Northeast Ohio
    Posts
    4,842
    On the Luxaire/Yorks we have occasionally had some air leaks in the blower compartments. The bottom panel is designed to be removed for return air intake. It is a friction fit panel and on occasion, does not fit tightly. You can get some unusual sounds emanating from these air leaks, high pitched whistles, squeals and even funny burbles. Also, the seals on the front access panels are some times damaged and cause odd noises.
    A good HVAC tech knows how, an educated HVAC tech knows why!

    DEM


  8. #8
    Join Date
    Feb 2011
    Location
    Tennessee
    Posts
    31
    Quote Originally Posted by 2old2rock View Post
    I would call back the installer, should be able to track it down in no time.

    That would be my suggestion also.

  9. #9
    Join Date
    Jul 2010
    Location
    Caledonia,Ontario,Canada
    Posts
    404
    Quote Originally Posted by local553 View Post
    blower wheel ?
    Just had one yesterday where the blades were seperating from the the center partion .....

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