Cleaned and checked air conditioner. Checked drain. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon level. Cleaned condenser coil. Compressor: .Condenser fan: . Blower: 4.8A .ambient: 4.8A .liquid line: was86.suction line: 35 .metering device: piston . Crankcase: wet. Return air: 66.5.supply air: 47.5 .wet bulb: 55 . Compressor makes whistling noise during off cycle. Compressor scroll plates are worn. Recommend replacing air conditioner.