Customer concerned about unit not cooling properly. Checked condenser unit and checked refrigerant pressure. Located the system has no refrigerant pressure. Unit is leaking refrigerant for the system. Needs a leak search on system to locate leak in the system. Customer has approved for leak search and refrigerant added. Customer has approved for taps membership. Located the leak on line set. Tighten line set for garage air handler unit. checked for leaks on line set and tighten line set cover. Pumped down and evacuate to system to 500 microns with vacuum pump. Added 7 lb refrigerant to the mini split unit. Checked unit operation and unit is cooling properly and running well.