very loudly noise from a American Standard Freedom 95 furnace

753 Views 10 Replies 4 Participants Last post by LLAOADAM, Jun 3, 2020

LLAOADAM

Discussion Starter · May 24, 2020

There is large noise from the furnace, basically two types, one is sharp noise last for a short awhile and happened time by time, this I think from induce motor. another kind noise is not that sharp but very loudly and continued for a quite long time from the top somewhere, I'd guess it is from blower motor, but the top location annoyance me, need help please.
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user_12345a

· #2 · May 24, 2020

would need to hear a recording.

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LLAOADAM

Discussion Starter · #3 · May 24, 2020

user_12345a said:
would need to hear a recording.

Thanks.

I do have a record file 509K MP3, how to upload it?
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user_12345a

· #4 · May 24, 2020

you can't attach that type of file, can use an external site and link.

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LLAOADAM

Discussion Starter · #5 · May 24, 2020

OK, here is the link of the fine name: furnace noise.MP3

https://www.online-convert.com/result/b3856e08-b359-4c14-b11b-5b6aad3626c1

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user_12345a

· #6 · May 24, 2020 (Edited)

Your inducer is failing.

The trane part is expensive.

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LLAOADAM

Discussion Starter · #7 · May 24, 2020

user_12345a said:
Your inducer is failing.

The trane part is expensive.

Thanks.

Ya, it is expensive and short life. do I need check the blower? actually where is the blower located ?
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user_12345a

· #8 · May 24, 2020

Just turn the fan on or a/c and see if there are any bad noises. a/c is a better test, runs at a higher speed than continuous fan.

The main blower is in the lower compartment assuming the furnace is an upflow. The inducer is in the upper compartment.

The inducer should a long time, it should have to be replaced only once over the 20 +/- year life of the furnace.

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surferdude2

· #9 · May 24, 2020

Yes, that noise is characteristic of the high speed ball bearing faillure on inducer motors. I think yours is a variable speed 3 phase motor. I think the equivalent part is a Fasco A197. Verify it yourself before ordering. Link below may be helpful:

Inducer Fasco A197

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dj3

· #10 · May 25, 2020

Fasco brand will be less $$.
Double check the wiring, they should match. If not, check the diagram on the Fasco.
Also be aware that electrical motors are non returnable - ask before you buy, so better take the old blower to a supply house for a better matching.

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LLAOADAM

Discussion Starter · #11 · Jun 3, 2020

user_12345a said:
Just turn the fan on or a/c and see if there are any bad noises. a/c is a better test, runs at a higher speed than continuous fan.

The main blower is in the lower compartment assuming the furnace is an upflow. The inducer is in the upper compartment.

The inducer should a long time, it should have to be replaced only once over the 20 +/- year life of the furnace.

Thanks,
you are right, on cooling model, the noise is much less. I'll change the inducer later.
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very loudly noise from a American Standard Freedom 95 furnace

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