The video I have here shows my furnace trying to fire but does not. The odd part is that it continues to run and blows cold air into my house. It doesn’t shut off and blink any codes to go by. I did take the flame sensor out and cleaned it with a dollar bill. Maybe I will try again to clean it better, but I’m not sure if that is it or not. It does this intermittently though, so most of the time it does light and the heat works. I’m just not sure what to check at this point. Hopefully someone can give me some tips if they recognize what the issue may be.