Complete member tune up. Inspect all electrical components. Test amps and volts. Clear drain line out with nitrogen. Delta T measures at 20 degrees. Ensure system is running in both heating and cooling modes. A picture of the evaporator coil was uploaded into ST. At condenser checked pressures, temps, amps and volts. A surge protector was installed at the condenser on the roof to prevent premature failure to the condenser and components. System is in operational order.