Gas burns with a clear blue flame when it burns cleanly. Yellow flames indicate incomplete burning, which can pollute the air the house. You needn't worry about occasional yellow flickers, but the burner can only produce a sputtering yellow flame, turn the burner off at the earliest opportunity, let it cool down, and clean the burner unit with a brush. Or call a professional and have it cleaned for you.

2torial #0610: Learn2 Light a Pilot Light (Continued) Turn the pilot on Turn the control knob so that the word pilot lines up next to the marker arrow. (Have a match or lighter ready.) You should hear a small hiss. That's a flow of gas going to the pilot light fixture. Light a match (or a butane lighter on its highest setting) and hold it next to the pilot fixture. Hold the flame as close to the fixture as possible for a few seconds. The flame should jump onto the fixture. If nothing happens, return the knob to off and check your pipelines to be sure all lines are open.   Step 6