Arrived to home and spoke with homeowner, they told me that they had another company out and was supposed to return in the next day or so. They were just looking for another estimate to determine if they were getting the same information. I found that the unit is low on charge, normally, this is an indication that the unit has a leak somewhere. It is possible that it’s been low on charge for a while since install since no maintenance has been done, but they told me that it worked better in previous summers. I left an estimate for 5 pounds of refrigerant , it is possible it could take more or less and I will know the exact amount once I have it on a scale. And also for injecting dye. Also, I spoke to homeowner about the importance of maintenance. Unit only had a 6° split. Unit is running at departure but not within manufacture specifications.