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  1. #1
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default White powder from heater vents

    Fine White powder coming from heater vents. Goodman gmh95, 1 year old. Ran fine through first summer and winter.

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  2. #2
    Join Date
    Feb 2008
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    Caledon, Ontario
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    Default Re: White powder from heater vents

    Is there a humidifier on the furnace?
    Filters clean?

    When was the furnace last serviced?


  3. #3
    Join Date
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    Orlando, FL
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    Default Re: White powder from heater vents

    "California snow"?


  4. #4
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    Spring Hill (Nashville), TN
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    Default Re: White powder from heater vents

    Quote Originally Posted by oscar escobedo View Post
    Fine White powder coming from heater vents. Goodman gmh95, 1 year old. Ran fine through first summer and winter.
    Pictures?

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  5. #5
    Join Date
    Mar 2007
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    Columbus GA
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    Default Re: White powder from heater vents

    Quote Originally Posted by Scott Patterson View Post
    Pictures?
    How do "Pictures" come out as a white powder?

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  6. #6
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    It does have humidifier, serviced a week ago. Tech had no clue. Filter is new. Working on photos


  7. #7
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    Default Re: White powder from heater vents

    Humidifier can create a white powder particularly if you have a water softener due to salt residue as water evaporates.

    In some cases even if there is no water softener you can get a powder being created due to hard water.


  8. #8
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    Photo attached, I think.

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  9. #9
    Join Date
    Feb 2008
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    Default Re: White powder from heater vents

    Okay photos don't tell me anything.

    Is the powder crusty and turn to powder when crushed?

    Still thinks its a humidifier problem.

    The next step is to turn off and take out humidifier pad and pan and vacuum up powder and see if problem persists.


  10. #10
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    Larger chunks look like dandruff flakes an yes they do turn to powder when crushed. Humidifier theory sounds good I will look into posted resolution and post outcome. Thx


  11. #11
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    Probably should have mentioned this before but I have two identical heaters that were installed at the same time by same contractor. One spews white stuff while other seems to work fine. However, I did notice the drain setup on problem unit is a long run and ain't sloped 1/4" per foot.


  12. #12
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    Humidifier theory sounded promising, but unfortunately my system doesn't have a humidifier. Sorry about the bad info.


  13. #13
    oscar escobedo's Avatar
    oscar escobedo Guest

    Default Re: White powder from heater vents

    No humididifier, I assumed I had a humidifier because I found some humidifier documentation with my heater documentation. I apologize again for bad info .


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