Can anyone out there shed some light on the amount of times this stove should go through its autoclean cycle? Mine has been doing it about every 3 to four hours. 6 to 8 times in 24 hours is a lot. It also is shutting down to clean even when the temp in the room is 7 to 8 degrees below the set temp. My dad had one and his only does it about 2 times a day. Could something be wrong?