Please help - Which condensate drain is leaking, primary or secondary?
Hi, I am so confused, hoping someone can shed light… In a nutshell, what appears to be a secondary condensate drain is dripping water outside. I understand that usually means clog in primary drain -- so I’m looking for where primary drain exits house, but I can’t find it, so I have no idea how to clean it out.
Now for some details…
Recently moved into this 7-yr-old two-story house, have run a/c only few times. Couple days ago, I had been running the a/c, and I was outside on side of house, and noticed water dripping profusely from a pipe above the kitchen window (pipe is between 1st and 2nd stories). Here’s a photo of that pipe:
Googled, and started thinking this is a secondary condensate drain pipe that’s meant to alert us to a problem with the primary drain.
The Carrier indoor unit is located on 2nd floor, in a closet. Vertical positioning, with the return air coming from underneath. There is no visible drip pan. There are 2 pvc drain lines coming from the unit. One line (slightly lower) is on left, has a trap installed. What I assume is the secondary drain line (slightly higher) is on right, no trap installed. Both run out the wall, and I can’t see where they go after that. Also, unit has a sticker on it that says: “This unit is equipped with an AquaGuard condensate shut-off switch. If unit is not operating properly, check for condensate in drain pan or tray.” Here are photos:
Attachment 378521Attachment 378531
So, I’ve been assuming the exterior pipe coming out from wall above kitchen window is the secondary pipe, because why would they run the primary line to drip in such a conspicuous place all the time, hitting the window ledge and splashing water…
But the strange thing is, from what I can tell, there is no other drain outlet outside – it seems in researching online that the primary drain outlet is usually a pvc pipe near the outdoor HVAC unit -- and I’m seeing people use a wet/dry vac on that to clean out primary drain clogs.
But ours doesn’t appear to have one at all. I’ve checked around entire house, and the only thing resembling a pipe anywhere on the first floor is a set of two pipes, not pvc, built into the brick wall, and they’re behind the laundry room, so I’m guessing they have to do with washer/dryer? Here’s that photo:
So I’m stumped. Where is my primary condensate drain line draining?... How can I clean it out if there’s no exterior outlet?...
Also, I just talked to my neighbor who also has 2-story house (he also has no obvious drain pipe near outdoor unit) – and he said that he too has a pipe on back of house, right above kitchen window, that drips water sometimes. So do I have this all wrong, and that 2nd floor pipe is actually the primary line? Am I worrying for nothing?
Thanks for wading through the details, and thank you for any help you can offer.