Success here as well. After reading this post and doing research on the internet, I cleaned my a/c coils. One note: I saw a youtube video that used compressed air instead of soaking the coils in a cleaning solution. I found that the compressed air cleaned the coils very well without any mess. You have to use a little caution not to get to close with the air since it is possible to bend a fin or two. But I found this method to be very effective. (I also made sure the clean the filter inside the TT.
I am not sure if this cleaning is going to eliminate the condensation leaks I am getting inside the TT, but I will keep my fingers crossed.