I am new at this! My third American Standard gas furnace fan control in seven years needs replaced. To save a few hundred dollars I would like to do it myself. I am replacing CNT 03076 with its replacement CNT 03798. Has anyone done this and are they configured the same? Can wire for wire be changed exactly? Are they the same size with identical mountings? Any information will be appreciated.

There should have been a paper with the new board stating if any changes have been made. If no paper then go exact wire to exact terminal for change out.