Honeywell Power Humidifier: Furnace Humidifier/ Humidifier
Problem for Honeywell Power Humidifier: Furnace Humidifier/ Humidifier

Noisy Amana furnace




By ackermanj1 on Jan 02, 2009

" "
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?

BTW, I couldn't find an appropriate product category for the "What product is it about?" entry, so I picked the closest I could find.
Comments:

Jan 06, 2009

- Correct. The vibration doesn't stop with my hand on it. If I try pushing on the motor a little, the noise changes some. Ideas?


Clarification Request

Posted by chowmix66 on Jan 06, 2009

You may have a metal venting wheel out of balance on the motor. The 90% effieient furnaces have very corrosive exhaust fumes and after time slowly eat away these venter motor wheels. If you can remove the assembly, you will probably find this to be the culprit. usually you have to cut the shaft of the motor off to get the wheel off. Let me know if you need more info.

Posted by chowmix66 on Jan 02, 2009

This is vented in plastic correct? when the motor is running, gently rest your hand on it and see it the vibration stops.

Solution #1

posted on Mar 29, 2009
Not Rated)

hvac teacher

Rank: Guru 
Rating: 91%, 51 votes
Remove the flue pipe from the top of the induced draft motor. Check to see if there any obstructions in it. If so remove them. If not replace the motor assembly.
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