40 goodman furnace control board wiring diagram
05/12/2014 · The first things that a control board checks for in the ignition sequence is to check and make sure the draft inducer is running and the pressure switch is closed. If the limit and rollouts are closed the control board sends 110-125 volts to the ignitor. If any of the safety control are open then the control board will shut down the furnace. I ... Click image for full instructions and a wiring diagram. ... furnace wiring boards repair circuit amana circuit board goodman board circuit board furnace ... Furthermore, some manufacturers put a terminal board strip near the control board in the air handler. Therefore, a splice is not needed. Yellow Wire for Y Terminal. *Although be aware that this may have changed, especially if the person who wired the thermostat didn’t use conventional color coding. Y2 – This is the terminal for cooling second stage if your system is so equipped. … Goodman furnace control board wiring diagram