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Old 02-16-2008, 09:41 PM   #1
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Trane 80 Fan Noise

My Trane 80 gas furnace is about 12 years old. The fan noise seems to be getting louder & starting to vibrate. The owners manual says "call a service technician". Is there a way to lubricate this motor? Or can it be replaced? If so, where do I purchase a replacement?



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Old 02-16-2008, 10:13 PM   #2
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Sorry, no there are no oil ports for the motor. Manufacturers haven't had oil ports in blower motors for years. I wish they did. Are you certain there is nothing in the blower wheel causing it to out of balance? As far as replacing the motor, take the motor out and take it to a local supply house and get a universal motor. You don't have to have a manufacturer's motor. I use a generic motor all the time. they work just as well and they are less expensive.


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Old 02-17-2008, 08:01 AM   #3
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if the motor is inside the squirrel cage is probably the bearings on the motor after 12 years...heating or cooling season/Fan ONLY... you get the noise?shut the unit off on the furnace toggle and inspect the squirrel cage for dirt build-up on the rounds if it is vibrating and free spin it to pick up any grinding or if it stops hard right after spinning it.if the motor is packed with dust from years of running that can make the whole thing overheat and dried the bearings out.if your handy as most home owners have to be,that motor is probably availible at your local Grainger supply who welcome homeowners now.if you can pull the fan section out easily take ALL the motor info Brand with catalog or model numbers/volts/frame(critical)...rule of thumb in the field new motor gets new capacitor when you go.any further questions ask away..will check back!
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