Weber Genesis Silver C NG Owner Manual - Page 30

Main Burner Flame Pattern The Weber Gas Barbecue burners have been factory set for the correct air and gas mixture. The correct flame pattern is shown. 1) Burner tube 2) Tips occasionally flicker yellow 3) Light blue 4) Dark blue (1) (2) (3) (4) Replacing Main Burners 1) Your Weber Gas Barbecue must be OFF and cool. 2) Turn gas OFF at source. 3) To remove control panel: take off the burner control knobs. Remove the screws holding the control panel in place. Lift off the control panel. 4) Unhook the manifold bracket(1) and unscrew the two wing nuts(2) that hold the manifold to the cooking box. Pull the manifold and valve assembly out of the burners and carefully set it down. (1) If the flames do not appear to be uniform throughout the burner tube, follow the burner cleaning procedures. Main Burner Cleaning Procedure Turn off the gas supply. Remove the manifold. Look inside each burner with a flashlight. (2) 5) Slide the burner assembly out from under the guide screw and washer(1) in the corners of the cooking box. (1) Clean the inside of the burners with a wire (a straightened-out coat hanger will work). Check and clean the air shutter opening at the ends of the burners. Check and clean the valve orifices at the base of the valves. Use a brass bristle brush to clean outside of burners. This is to make sure all the burner ports are fully open. CAUTION: Do not enlarge the burner ports when cleaning. D-7