Plumber69
In the Trades
At first I thought it was the filter cause it was really dirty. Then I noticed the flame dancing when main blower came on. Pulled the heat exchanger and no signs of cracks. But 3 or 4 of the rivets popped out. Is this all it takes for the flame roll out to trip? I replaced heat exchanger and all is working good now. I also cleaned the secondary heat exchanger but wasn't that dirty. Originally trip around 5 minute mark