Received a call at the AC system was not operating, upon arrival turn the blower on but did not hear air flow. I went up into the attic and open the air handler, the evaporator coil is completely plugged with dirt and the blower wheel is also plugged with dirt. I found that the condenser fan motor is not running as well, due to the age of the equipment and the amount of work that is required, my suggestion would be to upgrade the system. It is a 3 ton Goodman system, the air handler is a 208/230 volt unit