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Old 07-09-2012, 04:04 PM   #1
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Hole in HVAC duct


Recently I had some water stains begin to show in my ceiling downstairs in my living room. I had a plumber come in and he cut some of the ceiling out and discovered a hole in the duct work. You can stick your fnger in it and it is completely soaked. Is this normal to have that much condensation I the duct? Also could it really cause that much water stain? Also all the drain lines were checked and not leaking.
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Old 07-09-2012, 08:39 PM   #2
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Hole in HVAC duct


http://www.findtape.com/product580/J...id=2&info=hvac


Just use this tape to fix the hole.

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Old 07-09-2012, 09:52 PM   #3
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Hole in HVAC duct


Mice will eat through anything these days.
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Old 07-10-2012, 05:22 AM   #4
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Hole in HVAC duct


You shouldn't have water/moisture in your ducts. If you do, then you've either got a clogged drain, a dirty evap, faulty install, etc etc. I'd suggest calling your HVAC tech out to take a look. It'll just do it again if you don't fix the source.
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Old 07-10-2012, 05:28 AM   #5
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Hole in HVAC duct


But should there really be that much condensation in the duct?
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Old 07-10-2012, 05:30 AM   #6
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Hole in HVAC duct


See my last post - there should be no water inside your ducts, or in the insulation of your ducts.
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Old 07-11-2012, 09:28 AM   #7
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Hole in HVAC duct


No clogged drain and the pan under the evaporator is dry. See anything abnormal in the pics?
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Old 07-11-2012, 01:55 PM   #8
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Hole in HVAC duct


shut off AC until house warms up, disconnect condensate drain or be able to observe condensate pan then, run the AC full tilt to see if the condensate is actually going to drain..the supply fan air pressure could be too close to the coil or too high causing the condensate to carry over into the ductwork.thereby accumulating and rusting a hole through etc., just a thought - seeing as the drains aren't plugged --rusty ductwork just past the coil could also be an indicator AND yes..there is a ton of condensate during cooling ..that's how it reduces the Relative Humidity- it lowers the dew point at the coil causing it to rain cats and dogs!

Last edited by techpappy; 07-11-2012 at 01:59 PM.
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Old 07-11-2012, 03:10 PM   #9
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Hole in HVAC duct


The Owens Corning page for HVAC professionals has a lot of great resources and information to help with problems like this one. Whether it's information on products or info on continuing education, the OC page is an incredibly helpful resource to use for all types of situations. Check out the page here: Hope this helps and good luck!

Last edited by beenthere; 07-11-2012 at 03:41 PM. Reason: removed link
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Old 07-11-2012, 07:21 PM   #10
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Hole in HVAC duct


Visit it where?
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Old 07-12-2012, 07:31 AM   #11
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Hole in HVAC duct


TO: Doggins1

Just click on the blue HVAC. It will take you to the OC site which is nothing more than a big ad for insulation products.

SO anyway..Have you tried any of the suggestions to find out where the water is coming from. Would be interested to know. Hope you find the solution.

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Old 07-12-2012, 09:13 AM   #12
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Hole in HVAC duct


I'm surprised nobody mentioned it, but there may not be a condensate draining issue at all. If the ductwork is going through unconditioned space, the issue could simply be that due to the hole, the condensation is forming where the hole is at. With the damp air here in the southeast USA, I could very well see where the cool conditioned air is blowing into the warm, humid air in the attic and causing condensation to form in the duct where the hole is, and on any subsequent materials around the hole in the unconditioned attic...IE the hole in the duct is acting like a cold drink sitting on the patio table during the summer dripping moisture. I would first simply work on sealing up the hole and any other leaks, and then sealing it all up good with a good layer of insulation.

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