Annual Maintenance; Burner Flame Pattern; Main Burner Cleaning Procedure; Replacing Main Burners - Weber Genesis 89478 Owner's Manual

ANNUAL MAINTENANCE

INSPECTION AND CLEANING OF THE SPIDER/INSECT SCREENS
To inspect the Spider/Insect screens, remove the control panel. If there is dust or dirt on
the screens, remove the burners for cleaning the screens.
Brush the Spider/Insect screens lightly with a soft bristle brush (i.e. an old toothbrush).
CAUTION: Do not clean the Spider/Insect screens with hard
or sharp tools. Do not dislodge the Spider/Insect screens or
enlarge the screen openings.
Lightly tap the burner to get debris and dirt out of the burner tube. Once the Spider/
Insect screens and burners are clean replace the burners.
If the Spider/Insect screen becomes damaged or cannot be cleaned, please contact the
Customer Service Representative in your area using the contact information on our web
site. Log onto www.weber.com ® .

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.
A) Burner tube (1)
B) Tips occasionally flicker yellow (2)
C) Light blue (3)
D) Dark blue (4)
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 (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.

REPLACING MAIN BURNERS

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A) Your Weber gas barbecue must be OFF and cool.
B) Turn gas OFF at source.
C) To remove control panel:
(a) Take off the burner control knobs (1).
(b) Remove screw and washer from back of control panel with a Phillips screwdriver
(2).
(c) Tilt the back edge of the control panel up. Push in on the front edge to release
locking tabs (3).
(d) Disconnect the igniter wires from the ignition module (4).
(e) Carefully pull control panel away from frame (5).
MAINTENANCE
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