Test of system finds indoor coil dirty, but not very accessible. Chemically cleaned outdoor coil which brought temp down in its expected range. Freon levels checked. Low superheat on this system indicates an overcharge of freon. Recovered 1/2 lb freon from system. Test of indoor airflow finds system running with a perfect 58° outlet temp based on indoor temp and humidity. Watch and advise now that we have a correct baseline set.