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Old 05-27-2014, 08:11 PM   #1
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Condensate pipe


So yesterday we had water overflow from the below the furnace inside the house. Some research suggested that the condensate drain might be clogged. Watched some videos indicating that the drain could be outside near the ac unit. Looked around and I saw one PVC pipe coming from the attic but it appears to be carrying a cable so that can't be it.

So I looked inside. I see some PVC pipes near the furnace but honestly, I don't know up from down. Based on videos I saw earlier, I have an idea what to do from condensate pipe outside. Not sure what to do if I find it inside? Is it possible not to have an outside drain?

Anyway, to add to the confusion I see I have a condensate pump connected inside. Not sure how this changes things. Is this why I see no pipe outside? Could the pump be damaged?

When I saw the PVC inside, I reached in and noticed that it was full of water from opening at the top. By coincidence (or not?), the pump started to run and seemed to suck out the water from the pipe.

I have not run the ac since I noticed the water, and I am not sure where to go from here. Does any of this make sense?
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Old 05-27-2014, 09:31 PM   #2
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the white condensate line goes directly to the condensate pump if the pump is slimmed up or the flow is solid with muck the water keeps coming and such you get over flow.you gave to do maint on that pump keeping it clean.....see that trap coming out of the unit that has to be free also of slime....might consider sliding a sheetmetal tray under the entire furnace air handler and pipe that out to a stoop area or over a kitchen window.this will alert you to water in the pan and a blockage happening,this pan has a 2" lip around it with a 3/4" female opening to take a PVC pipe out
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Old 05-27-2014, 10:28 PM   #3
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If your furnace even has condensate
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Old 05-28-2014, 05:50 AM   #4
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Quote:
Originally Posted by droopdog7 View Post
So yesterday we had water overflow from the below the furnace inside the house. ... Looked around and I saw one PVC pipe coming from the attic
Is there a galvanized metal 2" deep PAN under the attic HVAC equipment?

There should be and it should have a drain line.
The HVAC equipment should have it's own drain line.

With all that gravity available pumping shouldn't be needed.
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