Report "07. It worked well until 1 year ago. Then , after the heating cycle, the pilot light would shut down also. I talked to one of your support people and she told me to pull the burner assembly and clean the burner head and orfice which I did. Everything has worked well until a week ago when the pilot light went out after every heating cycle. The flame normally burns blue, but on occasion will burn yellow. Could you help me with my problem? Thanks in advance!! Bill Satorius"