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Old 07-30-2012, 12:08 PM   #1
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Air filters are wet

So I screwed up today. At my job one of the capacitors went on the AC unit. While the tech was replacing it he offered to change the air filters. I said don't worry, I can handle that. Sure enough both units the filters were soaking wet and the tech had left.

Presumably the condensate is not reaching the pump. There is no condensate on the ground by the pump which indicate the pump is not overflowing. But there is also little to no condensate being pumped outside from what I can see by looking at the dampness of the ground.

If I remember correctly, last time this happened the tech found paper lodged in the 1" pvc tube. If that is the cause I could handle fixing it myself. I'm just curious if there are other causes I may not know about.


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Old 07-30-2012, 12:51 PM   #2
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If this has happened before than I'd be willing to believe the drain line is simply clogged up again.

Outside of a backed up drain, humidity could be an issue. Tends to happen more on the supply side such as if there's a hole or leak in a duct. The cold dry air from the a/c system inside of the duct would dry out the warm humid air surrounding the duct (at the leak) so the air would condense, like ringing out a wet towel.

Could happen on the return side if the air is cool enough, ambient (surrounding) hot enough.


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Old 08-07-2012, 10:44 PM   #3
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Also if evap coil is dirty the water will drip off and down the inside of the furnace instead of running down the Acoil
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Old 08-08-2012, 05:38 AM   #4
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I would check the drain line and also next time the tech is there get him to slope the drain pan a little more so that the water doesn't have as much time to sit and build up in the tray.
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