Upon arrival turned Unit on Heating to ensure it's normal functionality, and it was okay. Turned off the power to the unit and the gas to operate on the unit safely. Remove the gas valve screws to check the pressure of gas on the gas valve from the intake and the manifold side. Inserted temperature probes and static pressure probes. Took the pressures of the unit and everything of the unit was fine. Remove the flame Rod Center and cleaned it thoroughly and placed it back where it belongs. Check for the appropriate voltage on the power coming inside to the unit, everything was fine. Check the voltage between the power of the board and transformer, everything was fine. I have to removing all of the troubleshooting and maintenance equipment off of the unit insured proper functionality of the unit by turning it back on, unit ran fine.