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Old 07-26-2011, 05:10 AM   #1
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Forced AC unit making clanging noise


My forced AC unit started making what I can only describe as a more distinct propeller noise,with a little bit of metallic clanging noise yesterday(it used to be silky smooth). I popped the top to see if the fan blade was loose of if there was an obstruction and neither seemed to be the case. Any ideas?

The unit itself works fine. Recent work includes a new capacitor, Freon charge.


Last edited by tripower; 07-26-2011 at 05:24 AM.
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Old 07-26-2011, 06:25 AM   #2
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Forced AC unit making clanging noise


free spin it in CW/CCW directions any grinding does the blade turn with a push and not brake hard

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Old 07-27-2011, 05:24 AM   #3
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Forced AC unit making clanging noise


No, I didn't see any of that. In fact it will make that loud noise for a while and then revert back to quiet running. Any ideas?
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Old 07-27-2011, 07:57 AM   #4
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Forced AC unit making clanging noise


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No, I didn't see any of that. In fact it will make that loud noise for a while and then revert back to quiet running. Any ideas?
You need a new fan motor.
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Old 07-28-2011, 05:35 AM   #5
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Forced AC unit making clanging noise


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You need a new fan motor.
How do I determine the proper replacement motor?
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Old 07-31-2011, 11:32 AM   #6
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Forced AC unit making clanging noise


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