Everything on my existing furnace could be cleaned up and is already working, except for the part that failed. And that part just isn't available, anywhere. I've had three contractors search, as well as a very computer savvy SOL, and have put in many hours looking for the part myself. I've contacted the furnace manufacturer, and the manufacturer of the draft inducer that failed. I've also spoken with several knowledgeable friends.
That's why I'm replacing the furnace, and with a higher efficiency model.
Seeeeeya; Goodweed of thh North