On arrival set thermostat to call for heating Measured return 75temperature, 112 supply temperaturem, EWP,LWP,EWT,LWT,amps, and voltage. Inspected electrical connections, replaced filter provided by customer, blower wheel is clean, evaporator coil is clean, cleaned condensate drain pan, and. I also explain to the customer the benefits of installing Whole house surge protection and having a duct cleaning. Unit is operating normal at this time. Customer called wife and approve to install whole house surge protection.