Arrived for blue club member AC tune up. Changed the filters and washed the condenser. Checked the blower motor amp draw which is in range and the blower wheel is clean. Outside at the condenser the capacitor, contactor, fan motor, and compressor all check out good. Only issue outside was the refrigerant charge. One pound of r22 was added to get the units superheat in range from 26 degrees to 13. Unit is a 2014 manufactured unit that is R22. If refrigerant is needed again a leak check is recommended to evaluate the cost of fixing vs replacing. Overall the unit is working properly and cooling the house well.