Documenting how i installed a new control board and flame sensor on a Ruud UGDG-07EAUER HVAC unit that doesn’t have a flame sensor and the control board burnt out.I am not a professional, i am just sharing my experience.
Thanks to Jon M. One more thing to point out is to check the run cap for the blower motor. Its good practice to check it and replace it if its close or out of tolerance.
Flame sensor on Amazon: http://goo.gl/ukyPyE
Control Board on Amazon: http://goo.gl/UkMB09