I just got home from installing my sons new to him Advance. It was made in 2000 so that makes it an Advance 1, correct? Anyways, the install was textbook. We did replace the combustion motor and fan because the old one was a bit noisy. Before we installed the stove, my son did a very deep clean with my help including the fines box. After the install, I set the temp at 70 degrees and fired the stove on room temp and we had fire within 10 minutes. The room air fan came on as it should after 15 minutes or so and ramped up to the setting we had selected. After a 1/2 hour or so, the room was up to temp. As soon as the stove shut off, the room fan shut off. (!) The only way to get the fan back on was to switch to stove temp. My question is why did it do this? Bad dip switch setting? (If it even had dip switches) Bad control board? On my Accentra, my room fan runs for an hour after the stove shuts off.