Weber 3400 Series owner manual Burner does not light, or flame is low in High position

TROUBLESHOOTING

Problem Check Cure

Burners burn with a yellow or orange flame, in conjunction with the smell of gas.

Inspect Weber Spider Stopper	Clean Weber Spider Stopper
Guards for possible obstructions.	Guards. (See Section "Annual
(Blockage of holes.)	Maintenance".)

Burners do not light. -or-

Burners have a small flickering flame in the HIGH position. -or-

Barbecue temperature only reaches 250˚ to 300˚ degrees in the HIGH position.

The excess flow safety device, which is part of the barbecue to tank connection, may have activated.

To reset the excess flow safety device turn all burner control knobs and the tank valve OFF. Disconnect the regulator from the tank. Turn burner control knobs to HIGH. Wait at least 1 minute. Turn burner control knobs OFF. Reconnect the regulator to the tank. Turn tank valve on slowly. Refer to “Lighting Instructions”.

Burner does not light, or flame is low in HIGH position.

Is LP fuel low or empty? Refill LP tank.

Is fuel hose bent or kinked? Straighten fuel hose.

Does the Front burner light with a match?

If you can light the Front burner with a match, then check the Crossover Ignition System.

Experiencing flare-ups:	Are you preheating barbecue in the
	prescribed manner?

All burners on high for 10 to 15 minutes for preheating.

Are the cooking grates and	Clean thoroughly. (See Section
Flavorizer Bars heavily coated with	"Periodic Cleaning".)
burned-on grease?

nCAUTION: Do not line the bottom tray with aluminum foil.

Is the bottom tray "dirty" and not	Clean bottom tray.
allowing grease to flow into catch
pan?

Burner flame pattern is erratic. Flame is low Are burners clean?	Clean burners. (See Section
when burner is on HIGH. Flames do not run	"General Maintenance".)
the whole length of the burner tube.

Inside of lid appears to be “peeling.” (Resembles paint peeling.)

The lid is porcelain-on-steel, not	Clean thoroughly. (See Section
paint. It cannot “peel.” What you are	"Periodic Cleaning".)
seeing is baked on grease that has
turned to carbon and is flaking off.
THIS IS NOT A DEFECT.

Fuel scale shows that there is gas in the LP Check adjustment of fuel scale. tank, but tank is empty.

Fuel scale must be adjusted with an empty tank.

If problems cannot be corrected by using these methods, please contact Weber-Stephen Customer Service.

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