I purchased an RT 700 a few months ago. Initially it held the set temperature perfectly. A few days ago while smoking a brisket, I noticed that the temperature would fluctuate a few degrees. I vacuumed the burn pot to remove any excess ash. Today I smiled some jerky at 180 degrees for 5-6 hours. At about 5 1/2 hours, RT 700 began to smoke uncontrollably. I removed the grates, grease pan and burn pot over immediately. The burn pot was overloaded with pellets and burning ferociously. I shut off the power and the fire gradually quelled. if I had not been present, this would have been a dangerous situation. Has anyone experienced this? I am now afraid to leave the grill unattended. I don’t want to babysit the smoker, but I am now concerned with the safety of leaving it unattended. Any advice would be appreciated.