Derek Cole explains how AC systems produce condensate water through two drain lines: a hidden primary line and a visible secondary one. When water drips from the secondary line, the primary is clogged. A backed-up primary drain can overflow into your ceiling and cause expensive damage, so get it inspected before that happens.
So when you're talking about air conditioning, you're talking about removing heat from the house. Part of that removal of the heat, especially in this area, is dehumidification. We talked about that last week. The air conditioner is a dehumidifier. So to do that, moisture is taken out of the air. So the result of that obviously is water. So that water has to go somewhere. So upstairs you have a drain line. It sounds like you have a drain line, a primary drain line, and a secondary drain line. The primary drain line should be functioning somewhere where you cannot see it. It'll be outside, obviously dripping somewhere. The secondary drain line, when that's installed, they always put it in a place where you can see the water dripping. When that secondary line is dripping, it means the primary is clogged. So you're fixing to have a serious problem on your hands. So I would get my contractor or us out there to see why that drain line is clogged— the primary drain line is clogged. And then check the secondary. But it is working properly and you're cool, so you might not think there's a need to call somebody, but I would go and do that. Otherwise, you risk the problem of having that secondary drain line get clogged, and then you'll have an overflow on your ceiling. You have ceiling damage, and you're going to have all kinds of problems there.
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