Performed preventative maintenance for a York AC system. Model #Ycjd36s41s1a, serial #W1l4224097. Upon arrival the thermostat was in the off position. I powered down the system at the furnace and removed the access panels. The Evaporator coils are clean and in good condition. There was some residual buildup in the drain pan that I was able to remove. I tested the drain pan and drain line with several bottles of water to ensure that there are no leaks or clogs. I replaced the 16x20x1 air filter and checked all electrical connections to ensure that they are secure and in good condition. The blower motor and blower wheel are both clean 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 dirty but in good condition. The condenser amp draws are 7.10 for the compressor and 1.34 for the fan. The system currently has an 18° split. This could be due to the dirty condenser coils.