Tech arrived at a membership tune-up. Upon inspection, the capacitors were within specs. The refrigerant appeared to be low. The contactor was in working condition. The drain was clear and vinegar was poured. There was growth throughout the system. The blower area and coil was dirty. The indoor coil was severely rusted. The customer was informed of recommendations today. He has a friend in the industry and will have him review information. The system was functioning upon departure.