I had a Trane XL15 installed in 2007. Water leak (drain pipe) problems started around 2011. The a/c runs year-round (S. FL) It does not leak all the time but seems to act up a week after annual service is done. This time (Fri&Sun) I vacuumed the water where it comes out by the air handle which seems to work better than vacuuming from outside.
Tech suggest a condensate pump (which is costly) however, if that does not fix the problem the drain pipe needs replacing.
The problem with that is, the pipe 2-1/2" from air handler bends, then bends again at 6", then goes about 3' to an inside wall, down the wall about 8-10 ', bending again and going under a 6' wide concrete tiled walkway where the pipe comes out.
Does that mean tearing out the walls and concrete?
How likely is it the pipe (32 yrs old) has some type of thick (cholesterol-like) buildup?
Appreciate any help on this problem.