I have a Daikin (Goodman) unit for my downstairs. The evaporator coil started leaking a few weeks ago, and it was under warranty so I had it replaced. Just had to pay for more refrigerant and some labor. The replacement happened a week ago.

Last night I noticed my secondary drain line was leaking, so I went upstairs and saw that the pan was full of water, which has never happened in the 2.5 years I've lived here.

I poured some bleach down the drain line to try and flush it out. and that didn't help. In fact, the liquid in the pan smelled like bleach after that, like it didn't go down the drain line at all. The primary drain line ties into one of my bathroom sink drains, so today I unhooked it and vacuumed it out with a shop vac. Also took my shop vac into the attic and vacuumed it from the other side.

I got all kinds of gunk out of it, so I thought I was good to go.

I turned the AC back on, and it hasn't been running long enough for the pan to fill back up so TBD on that. But now the air is no longer blowing cold.

Is my new coil leaking, or maybe dirty or something? Any clue what the issue could be here?

TIA

If not blowing cold, seems like it's leaked the coolant out.

You need to blow your drain out if you can

Also could be your capacitor if you know how to check that I would do that first

Is your outside unit running

Outside unit is running. I don't think it's the capacitor, but I will say the air doesn't feel completely room temperature. It's somewhat cool, just not nearly what it is when it's working.

Doesn't answer your question but flush your lines w bleach and hot water every 3 months when u change your filter

I already do that

Did the drain pan drain or does it still have water in it?

Username does not check out.

Is there a clog in the drain upstream of the pan/primary drain in the cooling coil section? If you're seeing gunk downstream, maybe it came from upstream?

Seems odd that it would produce condensate if it's not cooling. If the coils are now wet, or if there's a wet sensor in that compartment, it might explain why it stopped cooling?

jt2hunt said:

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Did the drain pan drain or does it still have water in it?

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It drained down to the level of the drain pipe connected to the pan, but there was still about 1/4 inch of water below the pipe level. I got most of that out with the shop vac. But now I'm not running it since it's not cooling, and even if I was, it probably wouldn't be cool enough to condensate.

Do you have an auto shut off float switch in that drain pan?

jt2hunt said:

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Do you have an auto shut off float switch in that drain pan?

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Yes. It never got to that point.

So in a strange turn of events, this appears to have solved itself. I left everything off for about 3-4 hours, turned it back on, and now it's blowing ice cold. Definitely not out of refrigerant. I don't think the coils were frozen because I had barely been running it for the 10-12 hours before it stopped blowing cold, and I don't think the last 3-4 hours would have been enough time for them to unfreeze.

Maybe I splashed some water on the overflow sensor or something like that while I was shop vacing everything and it caused just the blower to run for a while. Who knows. Thanks for the tips though.

Some of the safety switches that cut-off to protect the system can take awhile to reset.

But you should pour a gallon of water in your secondary drain pan now and make sure that it drains out, or else your not done with repairs.