I am replacing the fan center. I removed the old one and installed the new one just as the old one. With the t/stat set to off and the fan setting to auto, when I turned on the switch at the furnace, the indoor fan begins to run. When I set the t/stat to cool, the outside unit runs but the indoor fan stops running. I even wired the new fan center according to the schematic on the furnace but continue to have the same problem.