inside blower shudders - http://www.hvacmechanic.com/ Forums
Original message
| DaniCothern
 |  "inside blower shudders"
, posted Wed 6 Aug 17:20  
My a/c is cooling fine, especially considering it's been over 100 degrees here for several days now. My problem is that when the unit kicks on, I hear a bump. Then, when it kicks off, it kind of shudders for less than a second. Any ideas what might be causing this and what I could do to stop it, if anything?
Thanks for any help you can provide.
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Replies:
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| learner
| "Re(1):inside blower shudders" , posted Wed 6 Aug 21:07
Hi,
I'd check set screw for the fan blade is not loose.
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| | DaniCothern
| "Re(2):inside blower shudders" , posted Thu 7 Aug 10:16
Can you tell me where I might find the set screw?
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| | yuri
| "Re(2):inside blower shudders" , posted Wed 6 Aug 21:42
Sounds like your blower wheel may be separating from the main hub or have a serious problem with the fins coming loose. Best to get a tech to check it or you may SOL at 100 deg when it breaks loose completely.
Yuri
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| | DaniCothern
| "Re(3):inside blower shudders" , posted Thu 7 Aug 10:26
Thanks for the reply. I'm gonna check the set screw thing first, on the off chance that it might actually be something simple. I took the entire squirrel cage and housing out about a year ago to clean it and didn't notice anything unusual, but it wasn't making that noise then, either. If the wheel is separating and/or the fins are coming loose, is this something I could see for myself if I took the squirrel cage out again? And if so, could I fix it or replace it myself? I'm living on student loans here and could stand to save some dough anywhere I can.
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