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Old 11-13-2008, 02:07 PM   #1
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Furnace Problems


My furnace makes a loud banging noise after it starts running and it also makes a loud banging noise after it stops, around a minute later or so. How can I fix this problem without calling for a contractor?

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Old 11-13-2008, 02:29 PM   #2
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Furnace Problems


Sounds like duct work expanding and contracting. Sorry though, I'm not sure how to fix it as mine does the same thing.

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Old 11-13-2008, 04:09 PM   #3
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Furnace Problems


If its duct work thats banging (ascertained by holding your hand on the ducts to stop the noise) hit the duct one sharp blow, with a hammer, at the center of where the noise emanates.
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Old 11-13-2008, 07:28 PM   #4
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Or...screw on a couple standing S locks for bracing where it is flexing, and make arragements to have the ductwork sized properly.
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Old 11-13-2008, 07:34 PM   #5
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Quote:
Originally Posted by 8 Ball View Post
Or...screw on a couple standing S locks for bracing where it is flexing, and make arragements to have the ductwork sized properly.
i concour
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Old 11-13-2008, 10:07 PM   #6
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Originally Posted by 8 Ball View Post
Or...screw on a couple standing S locks for bracing where it is flexing, and make arragements to have the ductwork sized properly.
Only tin wackers know what an S lock is! Well, I guess thats only partially true 'cause I aint a wacker, but I do know what a an S lock is!

Maybe the furnace owner doesn't know what you're talking about!

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