Manufacturer York Model # YHJF24S41S 1A Serial # W1B1738267 Came to the customers house to level the outdoor condenser then I cleaned the evaporator coil.after that I tested the system then completed a maintenance on the system, customer supplied the 16x20x1 filter. I took a temperature split it was 19 degrees. Then I made sure drain was working properly. After that I performed a amperage readings on condenser fan motor .75 amps and the compressor 3.8 Amps. The contactor and capacitor are both operating properly.system is operating properly at this time.