Performed preventative maintenance for a high efficiency Lennox AC system. Model #HS260422 P, serial #589-832-9763. Upon arrival the system was calling for heat so I powered the thermostat down and removed the access panels. The evaporator coil’s are clean and in good condition. I test The drain pan and drain line with several bottles of water to ensure that there are no leaks or clogs. The homeowner bought the wrong size Merv11 air filters. The system uses a 16x25x5 filter. I was able to install a 16x25x1 filter until the homeowner can purchase the correct size. I checked all electrical connections to ensure that they are secure and in good condition. The condenser coils are clean and in good condition. The condenser amp draws are .49 for the fan and 7.4 for the compressor. The temperature split is at a 20° differential. The system is operating properly at this time. No charge for maintenance. FWI