Sucks to hear that as I had a similar problem with my Traegar the first winter. I was able to get it unjammed before doing any serious damage to it. I now try minmize the number of pellets in the hopper when I'm done cooking. We had a pretty bad winter here in Maryland this past year and I continued to use the Traegar all winter. I'm a bit puzzled by the improper storage as it is designed to be used outside and the only blip about I can find about storage is this.
If the grill is stored outside during the rainy season, care should be taken to ensure that water does not get into the pellet hopper. Wood pellets, when wet, expand greatly and will jam your Auger. A Traegar Grill cover to protect the grill is highly recommended.
I can't find any warranty information on the Traegar site.
