[picklerose]

I have a 20 yr old unit. Sits in room off back of kitchen. Noticed water on the floor. The water is condensing & dripping down off the copper tube that runs under the house to the outside unit. There is a red drain plug there so sure enough I opened it & water came out. Replaced plug but it still dripping. What is the bad news?

 

[gregzoll]

Your drain line is clogged to let the water out of the pan, that sits between the furnace & A-coil.

 

[picklerose]

Is this a "DIY" project or am I going to shell out some $$$ for someone to look at it?

 

[gregzoll]

It is as long as you do not create a problem unclogging the drain, or find out that the A-Coil is iced over, when you take the cover off of the ductwork where the A-Coil is sitting. You are welcome to post pic's of the furnace, if wanting to know where to look.