cleaned & checked A/C & performed Ameren post data efficiency analysis. Checked drain. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon level. Found poor temperature drop: 17, T: 18.5- 20. I adjusted blower speed for proper temperature drop. Cleaned condenser coil. Compressor: 5.7A.Condenser fan: .75A . Blower: 3.5A.ambient: 78.liquid line: 80 .suction line: 51.metering device: TXV . Suction pressure:121(40) .head pressure:305(97) . Return air: 67.8.supply air: 50.7 .wet bulb:58 . Supply wet bulb:48.4.