This happened to me the first time, and the same may be happening to you. Are you loading your bisquettes before you turn on the P10.?
Do not load your bisquettes until after you have turned on the P10, and after it has completed the self test, which includes the turn table making half a turn. What happens if there are bisquettes in the tube during the self test, a bisquette will be advanced to the bisquette burner. When the bisquette burner get to the proper temperature, which is 5 - 10 minutes, it will automatically cycle the "first" bisquette to the burner, and will dump the unburnt bisquette that was sitting on the burner into the water pan.