Check that the A/C drain is open. it usually is on the passenger side way down near the bottom of the firewall in the engine compartment. it will be a small rubber nipple. squeeze it and clear water should run out. A lot of times a leaf or similar will plug it up.
The A/C drain was cleared 3x. But now mechanics said heater coil leak and want to take apart my whole dashboard to fix, rather not see that choice,m because that option ususally creates more problems due to a part forgotton to reinstall ect.. plus the labor & fix est $600-1100.00. It is the seal to firewall that leaks , so why not repalce this seal? Any suggestions?