You didn't mention how long the awning is. If it's under a certain length there's usually only one spring. If it's a long one, there are probably two springs and one of them may have slipped off the cone that keeps it wound (if it's made like a Colorado awning).
My Colorado (18') did this and I had to wind the front spring 14 turns. When it did it again a couple years later, I used Gorilla Glue to hold it to the cone. It had just detached from the aluminum cone that it's friction fitted to and unwound.
Over years of use, it happens. Faulkner is no longer in business and no parts seem to be available.