Performed a.c maintenance in Rancho Cordova. Unit is a concord package unit on the roof. Checked all electrical connections and are okay. Blower motor and evaporator coil are dirty and should be cleaned to provide more efficient cooling and to help unit work easier so it does not overheat. Checked capacitor which is rated for 35/5uf +-6% and is showing 38/5.1 and is in range and okay. Checked contactor and is working properly. Unit is in good condition. Checked refrigerant levels and are okay showing 71psi Lowside and 199psi Highside.