I started my new Harman xxv two weeks ago on auto since at this time of the year the outside temp varies greatly. Twice so far it went out at night with 5 blinks on the status light and several times it had 5 blinks but working and lighting itself perfectly. The first time that it went out was on the second night that I had started it. My question is, could it be the draft? I cleaned out the burnpot and the area below the burnpot (which was clean anyway). Should I just use it manually and on constant burn? It seems to work great other than this problem.