Weber

Weber Genesis II SP-435 GBS

Answers and step-by-step fixes from the official Weber manual.

Common problems

Burner won't light with the push-button igniter

1. Does the burner light with a match? This tells you whether gas is actually reaching the burner before you blame the igniter.
2. Did the match light it but the push button still won't? If gas flow is fine, the problem is in the electronic ignition system itself.
3. Is there a plastic wrap left on the battery, or is it old? A plastic protective wrap, a wrongly fitted battery, or an old battery will stop the ticking sound.
4. Are the ignition wires connected securely? Loose wires at the ignition button or the ignition module will stop the igniter working.

Grill won't get hot enough or heats unevenly

1. Did you turn on the gas before all the knobs were off? Turning on the cylinder with a knob already open, or opening the cylinder too fast, can trip the regulator's safety flow limiter.
2. Is the LPG cylinder low or empty? A nearly empty cylinder can't supply enough gas for full heat.
3. Is the fuel hose bent or kinked? A kink in the hose restricts gas flow to the burners.
4. Are the burner ports dirty? Clogged ports give an erratic or low flame even on the high setting.

You smell gas or hear a hissing sound

1. Are the spider screens on the burners blocked? Dust, debris, or insect webs on the screens can cause a lazy yellow flame along with a gas smell.
2. Could the rubber seal in the cylinder valve be damaged? A damaged seal can let gas escape with a light hissing sound.

Flare-ups, or flaky bits inside the lid

1. Did you skip preheating? Leftover food from the last meal causes flare-ups if the grill isn't preheated properly.
2. Does the inside need a thorough clean? The flakes on the lid are just carbonised grease, not a defect, but built-up grease inside causes flare-ups.

Step-by-step guides

Check the gas connections for leaks

1. Mix a soap and water solution.
2. Turn the gas supply on at the cylinder.
3. Wet each fitting with the soap and water solution.
4. Watch for bubbles forming at the fittings.
5. If no bubbles appear, turn the gas off and rinse the connections with water.

Light a burner with a match

1. Open the grill lid.
2. Check that all burner control knobs, including the side burner, are in the off position.
3. Turn the gas supply on at the cylinder.
4. Put a match in the matchstick holder and strike it.
5. Insert the lit match down through the cooking grates, next to the burner.
6. Push the burner control knob in and slowly turn it toward start/high.
7. Check that the burner is lit through the cooking grates and the FLAVORIZER bar cutout.
8. If it doesn't light within 4 seconds, turn the knob off and wait before trying again.

Check the electronic ignition system

1. Press the ignition button and listen for a ticking sound.
2. Check that any plastic protective wrap has been removed from the battery.
3. Confirm the battery is installed correctly.
4. Replace the battery if it is old.
5. Check the ignition wires are connected securely to the terminals under the control panel.
6. Make sure the ignition wires are properly attached to the ignition module.