Tonight, we are having very high winds - up to 60 mph gusts - and my stove was trying to relight itself. But it was full of smoke and smoke was starting to come out around where the vent pipe comes out. I figured that it was because the gusts were blowing down the pipe and overcoming the combustion blower to some degree. I got rid of ash from the burnpot and scraped it, and it lit up nicely after that.