The control board went out in my castille and I replaced it. The old board light would flash four times when first plugged in. The instructions for the new board said to set it on six. My flame is anywhere from 8 to 10 inches high while runnimg, instruction say 6 inches. My pellet feed gate is slid close as far as it will go. Can I just set the new board on 5 and then adjust the gate to regulated the flame height?