Performed AC maintenance. Inspected and tightened electrical fittings. Inspected ducting in garage to ensure airflow was not leaking. Changed filter customer provided. Inspected condensate line and insured was clear. Inspected blower wheel for proper balance and cleanliness. Cleaned outdoor condenser coil and checked electrical components. Inspected circuit board. Tighten electrical fittings. System is cooling and operational upon departure.