I loaded the stove for the night got it going good secondary's firing like crazy left the stove came back to see the air wash glowing in one spot. Stove was at 700 and front air tube was red. It freaked me out so shut it down all the way but it didn't do much since it was open just a hair from fully closed anyway. Glowing has went away on the air wash but its still holding at 700. This might not have been the first time this has happened because I noticed a small indent on the front of the air wash the other day. Funny thing is I never noticed it glowing before.