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Old 08-05-2009, 09:00 PM   #1
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Fan motor noise on a Trane HVAC


My question is there any additional precautions to take in replacing a fan motor on my ac unit. I have a Trane High Efficiency Weathertron Heat Pump XE1000 with a fan 5KCP39FG R251S that is making a lot of noise. All indications point to a bad fan with possible bad bearings. I can see how it leads to the side panel and it looks like just has 3 wires to disconnect/connect. Is there anyway to revive the motor once it is making noise? Is there a grease or something that I can possibly use to make the noise go away. WD40? Please help

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Old 08-05-2009, 09:25 PM   #2
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Fan motor noise on a Trane HVAC


Those motors cannot be revived/lubricated. If you can get the exact Trane, OEM motor you can replace it yourself. Be careful with the fan blade as sometimes you need a special gear puller to remove it. If you bend it then it will wobble like mad and cause vibration later.

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Old 08-05-2009, 10:39 PM   #3
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Fan motor noise on a Trane HVAC


In waiting for a response, I removed the fan and turned it over and sprayed the shaft with WD40 to get me thru the night. I was surprised to hear the noise go away. I know it is only temporary, but I had to do something. It is 109 degrees here in Texas @ 9:37 in the evening. I will look for one online tomorrow. Everything is closed right now. Again thank you.
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Old 08-05-2009, 10:52 PM   #4
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Fan motor noise on a Trane HVAC


Heh, WD40 is actually a solvent with minimal lubricating quality. It'll strip the oil off normal bearing surfaces. Don't let it go longer than tomorrow. You have a frozen motor instead of just a noisey one.
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