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2828
General Maintenance
Weber Spider Stopper Guards
Your Weber Genesis Gas Barbecue, as well as any
outdoor gas appliance, is a target for spiders and other
insects. They can nest in the venturi section of the burner
tubes. This blocks the normal gas flow, and can cause the
gas to flow back out of the air shutter. Figure 6. This could
result in a fire in and around the air shutters, under the
control panel, causing serious damage to your barbecue.
Figure 6
Figure 7
Venturi
Air shutter
Venturi fin
Weber Spider
Stopper Guard
ƽ DANGER
Failure to correct these symptoms may
result in a fire which can cause serious
bodily injury or death and cause damage
to property.
Main Burner Flame Pattern
The Weber Genesis Gas Barbecue burners have been
factory set for the correct air and gas mixture. The correct
flame pattern is shown in Figure 8.
Figure 8
Burner inside
cooking box
Flames
Tips occasionally yellowish
Light blue
Dark blue
Figure 9
Figure 10
The Weber Spider Stopper Guard is factory installed. It
fits tightly around the air shutter section of the burner
tube and the valve, thereby preventing spiders and other
insects access to the burner tubes through the air
shutter openings. Figure 7.
We recommend that you inspect the Weber Spider
Stopper Guards at least once a year. (See section
“Annual Maintenance”.) Also inspect and clean the
Spider Stopper Guards if any of the following
symptoms should ever occur.
1. The smell of gas in conjunction with the burner flames
appearing yellow and lazy.
2. Barbecue does not reach temperature.
3. Barbecue heats unevenly.
4. One or more of the burners do not ignite.
If the flames do not appear to be uniform the length of the
burner tube, follow the burner cleaning procedures.
Main Burner Cleaning Procedure
Turn off the gas supply. Remove the manifold. (See
Section “Replacing the main burners”.)
Look inside each burner with a flashlight. Figure 9.
Clean the inside of the burners with a wire (a straightened
out coat hanger will work). Figure 10. 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.
ƽCAUTION: Do not enlarge the burner ports when
cleaning.
Replacing Main Burners
a) Your Weber Gas Barbecue must be OFF and cool.
b) Turn gas OFF at source.
c) Remove control panel: take off the burner control
knobs. Remove the screws holding the control panel
in place. Lift off the control panel.