Hi, my Air Conditioner has been dripping on my floor, off and on, for a few years. Was the rain too hard? Was the Air Conditioner drain clogged? Was the humidity too high? Was the roof seal leaking? I don't know!!!!!!! It was always just a little puddle that wouldn't and couldn't hurt anything. But it was annoying. Finally, digging into it, I found cracks in the plastic air conditioner drain. I removed the factory sealer, sanded the area where I could see cracks, and use a sand able, paintable, kitchen and bathroom caulking / sealer.
I had to go over this with my sealer a few times because before my water soluble / waterproof sealer could get a chance to dry, it would rain on it again. Also I found a hair line crack that was very hard to see. Finally when I got maybe two dry days, I finished with my sealer and set my furnace to 80 degrees for the day to hopefully get my fix done and over with.
After several days of rain, and no leaks detected, I put my air conditioner back together.