I had a new Trane XV80/XL14i system installed exactly three years ago.
The installer went out of business but luckily I have not had any problems. I clean the air filters (EAC panels) regularly but otherwise haven't done any maintenance.
I'm ready to fire up the A/C for the first time this year. Is it necessary to get a professional to clean and check the system, or can I just clean the condenser and evaporator myself?
If I can do it myself, where would I find coil cleaner? I have not had any luck in the local hardware stores...
Any advice would be appreciated.