Weber Summit 670 Owner's Manual page 15

Always open the lid before igniting the burners.
A) Each control knob has its own igniter electrode built in. To create a spark you must
push the control knob in (1) and turn to START/HI (2).
B) This action will generate gas flow and a spark to the burner lighting tube (3). You will
hear a "snap" from the igniter. You will also see a 3 - 5 orange flame coming from the
burner lighting tube at the left side of the burner (4).
C) Continue to hold the burner control knob in for two seconds after the "snap" .
This will allow gas to flow completely down the burner tube (5) and insure ignition.
D) Check that the burner is lit by looking through the cooking grates. You should see
a flame. If burner does not light on first try, push control knob in and turn to OFF.
Repeat lighting procedure a second time.
WARNING: If the burner still does not light, turn the burner
control knob to OFF and wait 5 minutes to let the gas clear
before you try again or try to light with a match.
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