26MAINTENANCE

WEBER® SPIDER/INSECT SCREENS

Your Weber® gas barbecue, as well as any outdoor gas appliance, is a target for spiders and other insects. They can nest in the venturi section (1) of the burner tubes. This blocks the normal gas flow, and can cause the gas to flow back out of the combustion air opening. This could result in a fire in and around the combustion air openings, under the control panel, causing serious damage to your barbecue.

The burner tube combustion air opening is fitted with a stainless steel screen (2) to prevent spiders and other insects access to the burner tubes through the combustion air openings.

We recommend that you inspect the Spider/Insect screens at least once a year. (See Section “Annual Maintenance”.) Also inspect and clean the the Spider/Insect screens 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.

DANGER

Failure to correct the above mentioned symptoms may result in a fire, which can cause serious bodily injury or death, and cause damage to property.

MAIN BURNER CLEANING PROCEDURE

TURN OFF THE GAS SUPPLY.

Remove the manifold (See “Replacing Main Burners”).

Look inside each burner with a flashlight.

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 Steel 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.

REPLACE MAIN BURNERS

1)Your Summit® gas grill must be off and cool.

2) Turn gas off at source.

3) Disconnect gas supply.

4) Remove cooking grates.

5) Remove smoker box.

6) Remove Flavorizer® bars.

REMOVE CONTROL PANEL

7)Tool required: Phillips Screwdriver.

a) Remove the burner control knobs.

b) Remove the two screws that secure the control panel to the frame.

c) Remove the control panel. Tilt panel forward and lift up and away from grill. Completely remove the control panel from the cooking box assembly exposing the valves, burners, igniter, and manifold.

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Summit E/S-420/450 manual 26MAINTENANCE, Weber SPIDER/INSECT Screens, Main Burner Cleaning Procedure, Replace Main Burners
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E/S-420/450 specifications

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