Noisy Amana Air Command 90 furnace

I have an Amana Air Command 90 furnace, about 13 years old. ModelGUC/GUX (UPFLOW). There is a very loud buzzing or vibration soundcoming from (I believe) the vent blower motor, possibly from the rightside or lower right side of it as I face it. I'm thinking that Ishould replace the motor, but I'm wondering if it might be somethingelse. Otherwise, furnace seems to be working fine. Any thoughts or ideas?
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Yeah, its the motor. Go ahead and replace it. While you are at it, I can see from here that your thermostat is bad too so go ahead and replace that too. By the way, your car is making some noise too. Get a new transmission and that should cure it. Anything else you have that needs fixing? Bubba
On 02 Jan 2009 16:31:33 GMT, ackermanj1_at_lycos_dot snipped-for-privacy@foo.com (ackermanj1) wrote:

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Its broken.
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You got a bee in your bonnet?
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Replace any and all components till the sound disappears?
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On 02 Jan 2009 16:31:33 GMT, ackermanj1_at_lycos_dot snipped-for-privacy@foo.com (ackermanj1) wrote:

It's hystaresis from the thermostat. Replace the stat and all will be well. You're welcome.
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Based on your level of certainty, I can suggest that you might want to probably consider thinking about purchasing a part, to have on hand for when the part you think might be bad could fail.
That said, I'd suggest to you that you call a service company, and get a tech who has experience with these things. I sense that you're just guessing.
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