Completed 1 system a/c repair and preventative maintenance check. Checked all of the mechanical and electrical components. Replaced filter. Found system undercharged. Leak searched system and found no leaks in major components. Highly suspect the evaporator coil leaking. System was down approx 3 pounds. Blower motor sounds terrible on startup. System has a 10 year parts and labor warranty. Ordering coil and blower for replacement.