Performed preventative maintenance for a RUUD ac system. Model#RH1V4821STANJA , serial #W111507353 . Upon arrival the thermostat was set for heat. I powered the thermostat and the system down and removed the access panels. The evaporator coil’s are clean and in good condition. 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 blower motor and blower wheel are clean and in good condition. I replaced the air filter size 20x20x1. I checked all electrical connections to ensure that they are secure and in good condition. I turned the humidifier off for the season. I re attached the access panels and powered the system 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 8.74 for the compressor and .69 for the fan. The system has a 21° differential. The system is operating properly at this time. Collecting for full syste