Performed preventative maintenance for a Carrier AC system #1. Model #24abc636a0030011, serial #1118E08455 . Upon arrival the system was set for heat. I powered the system down and removed the access panels. The evaporator coils are clean and in good condition. Tested the drain line and condensation pump to ensure that there are no leaks or clogs. Checked all electrical connections to ensure that they are secure and in good condition. The filters are . I re attached the access panels and powered the system back up. I called for AC and observed the system starting normally. The condenser coils are in good condition. The condenser amp draws are 5.75 for the compressor and .84 for the fan. The temperature split is at a 20° differential. The system is operating properly at this time. Performed preventative maintenance on a carrier AC system #2. Model #24abc642a300, serial #0518E17812. Upon arrival the system was set for heat. The homeowner powered down the thermostat and I powered down th