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Old 06-26-2012, 12:28 PM   #1
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Leak where a duct comes in the air handler


I noticed a water spot on my ceiling, so I went into the attic to check it out. I ruled out a roof leak. The spot of the leak was just under the air handler where one of the air ducts comes in. It was not actively leaking when I was inspecting it. I knew where the leak was because a ceiling joist was wet in that one spot. The leak is for sure at the that joint where the duct comes in. It is not from a clog in a condensation line that runs to the outside of the house. any suggestion on what is causing it now? Temps have been 100 lately. Any suggestions for fixes?

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Old 06-26-2012, 02:20 PM   #2
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Leak where a duct comes in the air handler


looks like condensation from the leak. You have to redo the joint between the flex tube and trunk box again.

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Old 06-26-2012, 06:50 PM   #3
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Leak where a duct comes in the air handler


Turn the blower on and feel for any air leaks. Cool air from the AC blowing in a hot and humid attic will form condensation on anything the cool air gets to.
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Old 06-26-2012, 07:09 PM   #4
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Leak where a duct comes in the air handler


I will check on that Marty. Thanks to both. If I do need to redo the joint are there any special considerations I need to know or is it as easy as going to lowes and buying materials? What do I need?
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Old 06-26-2012, 07:25 PM   #5
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Leak where a duct comes in the air handler


I use to add DP 1030 (duct sealant) at the take off and inside of the black part of the flex tube. After that, this video show how to do it.

http://www.youtube.com/watch?v=E_PtU...eature=related
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Old 06-27-2012, 11:14 AM   #6
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Leak where a duct comes in the air handler


Thanks JJ will use it. Found out that the leak is not from the joint but from the corner of the handler.

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Old 06-29-2012, 12:27 AM   #7
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Leak where a duct comes in the air handler


Used the dp1030. I apparently did not allow enough drying time because the condensation bulbed it up and leaked through. I can't leave the blower off because it has been over a 100 lately. How long am I supposed to let the dp1030 set? Any recommendations would be appreciated, i.e. hairdryer. Sorry for kicking a dead horse.
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Old 06-29-2012, 08:15 AM   #8
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Leak where a duct comes in the air handler


Let it dry overnight.

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