Preformed cooling maintenance. I tested all electrical components on the inside unit. All tested within manufacturer specifications. I treated main drain line with total c. Changed filter for client. Temperature across the coil was at 20 degrees. 57 supply temp and 77 return temp. I proceeded to the outside unit where I tested all electrical components and run and start amps for the compressor and fan motors, all electrical tested within manufacturer specifications and run and start amps were testing within range as well. I rinsed the outdoor coil. Unit was in good working order and cooling upon departure.