Weber 425, 450 manual Maintenance, Main Burner Flame Pattern, Main Burner Cleaning Procedure

Models: 450

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Main Burner Flame Pattern

MAINTENANCE

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 in Figure 7.

Burner inside

Tips occasionally yellowish

cooking box

 

Main Burner Cleaning Procedure Light blue

Dark blue

Flames

Figure 7

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.

Look inside each burner with a flashlight. Figure 8.

Figure 8

Clean the inside of the burners with a wire (a straightened out coat hanger will work). Figure 9. 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.

Figure 9

mCAUTION: Do not enlarge the burner ports when cleaning.

Replacing Main Burners

1.Your Weber Gas Barbecue must be OFF and cool.

2.Turn OFF gas at source.

3.Disconnect regulator.

4.To remove control panel refer to “Remove the control panel and the front panel” in the Step-By-Step Guide.

5.Remove cooking grates.

6.Remove Flavorizer bars.

7.Remove the manifold by unsnapping the clips at the right and left front of the cooking box. Figure 10.

Figure 10

8.Disconnect white and black wire from each igniter. Figure 11.

White wire

Black wire

Figure 11

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Weber 425, 450 manual Maintenance, Main Burner Flame Pattern, Main Burner Cleaning Procedure, Replacing Main Burners