If you own a pellet stove, the electrically powered auger that loads the pellets into the fire area will jam on occasion. The simplest (and most cost-effective) solution for this is to take care of this yourself. This is possible, even if you have a pellet stove that doesn't have a removable auger cover.
The first step is to unplug the auger. Then open the top of the stove and remove all the pellets. Once you have done this, vacuum completely to ensure there are no pellets or dust remaining around the feeder.
On one side of the stove, there is a cover with screws holding it on, which allows access to the auger. Remove these screws carefully and set the cover aside. Remove the connections and screws that hold the auger in place, and remove the auger.
After you have done this use a vacuum to clean out any pellets and dust. Replace and reattach the auger. Screw the outside cover back on. Pour some pellets back into the feeder on the top of the stove, and put a small handful of pellets into the firing hole inside the stove.
Plug the auger back in and give it some time to make sure everything is working correctly before you completely fill the feed bin in the top of the stove.