Manufacturer Carrier Model # FEdANF005000 AAAA Serial # 4705A82821 Completed a preventative maintenance on a 13 year old carrier ac unit. Changed out the 20x20x1 filter. The temperature split was23! I cleaned and tested drain line and it is working properly. Then I performed amperage readings on the compressor 10.1 and the condenser fan motor .65 amps tested capacitor and contactor both are operating. System is tested and operating properly at this time.