Noisy Condenser Fan Motor


  #1  
Old 10-04-05, 07:55 PM
Gene1s
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Noisy Condenser Fan Motor

Dear HVAC guru's,

I believe that the bearings are shot in the fan because of constant rattling sounds. The fan spins freely, but I am able to slide the shaft up and down. Unless there is something else I should check out, I plan to replace it before my neighbor does. He has many guns.....

I will also replace the top grill that the motor is attached to since it is getting quite rusted. Is there any special balancing issues when I re-mount the motor and then re-install the fan blade to the motor?

any other advice would be appreciated in my quest to bring peace back to my neighborhood.

Thank you for your help,

Gene
 
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Old 10-04-05, 08:08 PM
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Are you sure the rattling noises are coming from the fan motor?? Usually a fan motor will start screeching a high pitch noise when they are going out.

As for the top grill just clean it good and paint it, you wont find a new replacement.
 
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Old 10-04-05, 08:15 PM
Gene1s
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Thanks for your feedback Mattison,

I just went outside to give another listen. It sounds like a prop-plane, as if it were running out of gas; the sound goes in and out. That's the best I can discribe.

What other posibilities could you imagine?

Thanks
 
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Old 10-05-05, 04:55 AM
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Bent or cracked fan blades maybe. Don't rule out the motor all together, just don't sound right frome the description.
 
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Old 10-05-05, 06:33 PM
Gene1s
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I re-checked the fan blades and the looked okay. I noticed that there is a lot of play in the shaft, I am able to push and pull it up and down a good 1/4 inch. The model is an Emerson 1/3 hp out of a ComfortMaker

When I replace the motor and re-attach the fan blade, is there any special balancing considerations?

Thanks again,

Gene
 
  #6  
Old 10-06-05, 12:45 PM
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Originally Posted by Gene1s
When I replace the motor and re-attach the fan blade, is there any special balancing considerations?

Gene
No. Just be sure and get the blade at the same heighth it is in the shroud now.
 
 

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