No cool- Arrived today for membership maintenance system is not cooling. Homeowner is not sure what may have caused the issue. She was not home when it stopped cooling. 2015 GrandeAire front draw. Upon arrival system was Set to off. Set system and cooling to begin diagnosis. System low on refrigerant. Split 0°. Refrigerant pressures and temperature are low. Bacterial growth and standing water in evaporator coil pan. Both indoor and outdoor coils are dirty, but two corroded for cleaning. Biological growth found on Interior air handler mostly on wiring. Capacitor Is weak reading 31/4out of 35/5 µF. Took compressor and outdoor fan motor amp draw. Compressor and outdoor fan motor are very loud. Spoke with homeowner about all the repairs necessary for her system and scheduled a comfortable advisor appointment. Charged system to get customer cooling today. System removed 8° of heat bringing the house from 85 to 78 before I left.