The Inducer blower on my Goodman GMS90904CXA furnace runs continuously. I don't think it is supposed to. In order for the furnace to start, I have to remove the suction tube from the Inducer to the pressure switch for a few seconds and replace it. The furnace will then start. I have to repeat this any time I want the furnace to start. The red error code lamp does 2 flashes which says the pressure switch is closed and the Inducer is not working. That is incorrect. I have replaced the pressure switch and the Inducer is running continuously. Is there a relay or switch somewhere that controls the Inducer?