Furnace
We own a 2003 Four Winds Lite, and noticed black soot on the outside wall above the furnace . I cleaned it when I first seen it, but now it is back. We just bought the camper, so do not know what main...
Forum Discussion
You have some sort of blockage in the burner tube or combustion chamber. Most likely, you have a wasp nest in the combustion chamber, second likely, a spider's nest in the burner tube. A good cleaning and inspection should cure it.
