My Afton Bay is 12 years old or so. Today we lit the stove and all was well. I went outside for a few minutes and came in to a house filled with smoke! The #2 light was blinking and stove off. I thought that this shouldn't happen doesn't Afton Bay have emergency setting so if it senses a problem it shuts down proper? I am pretty upset about my house filling with smoke. Stove is cleaned. I had door gasket on hand to change out ( never been changed) so I did that hoping that's the blinking #2 issue but why would my house fill with smoke????