I had to take my Dearborn stove out of the back room to give it a good cleaning because of dust accumulation. Prior to disconnecting it, the pilot had developed a white tip on the blue flame because of dust. Anyhow, I gave it a good blow with the air wand on the air compressor and re-lit it after that. The white tip is gone on the pilot is gone, but it was replaced by an orange aura around the blue flamed pilot. What gives?