Complete member tune up. Inspect all electrical components. Test amps and volts. Delta t measures at 19 degrees. Clear out drain line with vacuum. Ensure system is running in all modes properly. Change customer supplied filter. A picture of the evaporator coil is uploaded into ST. The air handler cabinet is containment free. The pure air x uv system is operating properly. At condenser checked pressures, temps, amps and volts. I recommended the customer add a surge protection device to the system. We did not move forward at this time. System is in normal operating condition.