Why is drip pan overflowing? How can I fix this issue?I am trying to learn and do what I can by myself. My hvac unit warranty has expired. Please help. Thanks so much.
As you can see there is a pipe hole in the photo. Some days ago it srtated to drip water. After short time it stops and then stays stop for few days and then starts again. What is this pipe hole for? why is it dripping water?