Apon arrival tech talked to daughter and was informed this is the first time the ac has been turned on this year. I started with taking pressures and air temp readings and everything was within manufacture spec. Checked all electrical connections on the boards and checked amp draws. I also cleaned out the condenser and washed the coil. Recommen air filter to be changed. Blower wheel and motor are in working condition. Uv light is keeping the pluem free of Growth. Drain line is clear. Left system cooling