This has happened maybe 2 or 3 times, most recently last night. We used it normally in the evening, turned it off, it cooled down, turned off and then around 3:30 in the morning I got up to turn off the ceiling fan (unrelated, not connected, and all of a sudden the Pellet Stove motor just started up by itself. IN THE OFF POSITION What in the world could cause this??? (besides a ghost)