Hi I have Vermont Casting Resolute Acclaim stove . I have had it about 6 years . Yesterday after replacing gaskets and a new upper fireback . I noticed after the fire was going the damper shuts like it alway did . But it will not open back. If you open the stove and barely touch it will open back. I never have opened like this as it smells up the house. This is not good. Does the damper open by gravity to fall back? The stove is level. I hope someone can give me some solutions . I really miss the heat quite spoiled to the way it heat so good. I must get this fixed soon. Thanks!