Performed preventative maintenance for a high efficiency Lennox AC system. Model #XC17-048-230-05, serial #5812E19950. Upon arrival I powered the system down and removed the access panel. The evaporator coil’s are clean and in good condition. There was some debris in the drain pan that I was able to vacuum out. I tested the drain pan, drain line and condensate pump with several bottles of water to ensure that there are no leaks or clogs. The air filter size 16x25x5 was replaced in the fall. I powered down the humidifier for the season. I checked all electrical connections to ensure that they are secure and in good condition. 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 clean and in good condition. The condenser amp draws are .67 for the fan and 8.6 for the compressor. The temperature split is at a 21° differential. The system is operating properly at this time. No charge for the mainte