Question about Omega Trane Furnace Draft Inducer Blower 115 Volt Variable Speed Fasco # A190

2 Answers

Draft inducer blower going bad

I have a Trane XE90 (1994) furnace. The power vent fan is making noise and I am in the process of changing it myself.
The FASCO blower unit is listed as 7062-3956 at 3450 rpm.
My repair man ordered the replacement unit. It's not the same. My unit has a electrical box attached on the side of the motor. The replacement P/N D342094P03 doesn't have that attachment and is listed at 3400 rpm.
His supplier said that is the replacement.
All I need is agree or disagree.
With the internet I can see the numbers and I cannot find anywhere that will support the replacement part.

Posted by on

  • acam4 Jan 18, 2009

    My only thought is that I'm dealing with carbon monoxide exhausting out doors. Some engineers calculated, in the 90's, that a 3450 rpm blower was warranted to exhaust the carbon monoxide from this furnace.

    Now 15 years later I'm even thinking, what's 50 rpm less and so what it doesn't have that electrical box on the side of the motor that I'm not aware of it's function.

    The new furnaces have advanced techniques that can encompass 3400 rpm or perhaps less was my thought process .

    I'll probably wind up using it but had to run thru the if's and and's.

    Thanks

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The Fasco book says the correct replacement numbers are as follows:
"7062-3956 = D330757P035 = Fasco # A130" . If the one your installer has needs to be modified to fit, I'd find another installer!

Posted on Feb 01, 2010

  • sprky Feb 01, 2010

    I have similar problem with my Fasco equivalent #A145. I'm pretty sure
    it is a bad motor bearing. Electrical box on the side of the motor
    usually holds the small capacitor the motor needs to run properly. It
    should not be a problem if the motor run capacitor is mounted on an
    external bracket, as long as the rest of the replacement "draft
    inducer" fits perfectly and moves the same amount of air!

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I agree close enough. Only slightly slower. If it fits mechanically , useit.  

Posted on Jan 17, 2009

  • Thomas F. Schneider Jan 18, 2009

    The electricial boxs seem to be on a lot of the old motors that I have changed out. I am fairly sure that when you open it ,it will only be there as a junction or to change speeds on a multispeed motor.

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