Completed annual maintenance on air conditioning system, changed return filter 14x30x1, turned system on, inspected indoor coil which was clean, tested indoor capacitor which tested in range, gave customer estimate for UV light start to form small amount of mold spores in air handler, tested blower amp draw which was normal, delta t reading at 15 degrees, at condenser tested pressures which were normal, tested capacitor which tested in range, contactor looked in good shape, hosed down outdoor coil, turned system off at thermostat and system operational and working.