I completed a diagnostic on a air conditioner that would not cool the home down past 75 degrees. Upon arrival I discovered that the delta T was only 2 degrees. Added 4.5 pounds of refrigerant but the system had a big leak somewhere. Because of the age of the unit I recommended the customer replacing the system but as of now it was cooling the home just not efficiently, Sent the customer an estimate s othey can keep it in mind.
