Hope these pics come out if not I will resend them. Went on a call last saturday lady had a contractor out like 3 times within 2 weeks. She called me and I went out there lady explained that she has to keep resetting the flame roll out switch She explained that she mentioned this to other contractor and all they did was replace parts every time they came out. They told her to keep resetting flame roll out switch and to keep calling them back but they were charging her for each time they came back and still wasn't fixing problem. They also said her filter was restricting air flow. As I was watching her burners burn the blower fan came on and was shooting flames back out of furnace here is why and why they said her filter was restricting air flow.