I keep getting an over temp error. Stove feed rate is at 1 blower at 9 the other 3 buttons are at 6-4-1...but it doesn't act like the feed rate is at 1 which gives a medium size fire, it's acting like the feed rate is higher and fire is big. I cleaned the stove like the DVD showed and still same issue. Both blowers are working. I don't know what letter mine is on (abcd) not sure how to check or change that.