Weber Genesis II LX, S-340 GBS, S-640 GBS Manual

Welcome to WEBER

Hello! We are so glad that you have joined us on the journey to barbecuing happiness. Please take some time to read through this Owner's Manual to ensure that you are up and barbecuing quickly and easily. We want to be with you for the life of your grill, so please take just a couple of minutes to register your grill. We promise that we will never sell your information or spam you with unnecessary emails. What we do promise is to be by your side, every step of the way. When you sign up for a WEBER ID as part of your registration, we will deliver special barbecue-related content just for you to enjoy. So, come along and join us online, on your smartphone or however else you'd like to stay in touch. Thank you for choosing WEBER. We are happy you are here.

Product Features

THE GS4 GRILLING SYSTEM
The GS4 High Performance Grilling System sets a new standard in the world of backyard cuisine, and lands the GENESIS II and GENESIS II LX series of gas grills in a class of their own. This innovative grilling system is based on over 30 years of grilling experience, culinary expertise, and most importantly, avidly considering the wants and needs of the people who matter most – the grilling community. Each component of GS4 was uniquely designed for ease-of-use and to provide an unequaled satisfaction to your backyard grilling experience. Promising burners that are ensured to ignite every time, smoke infused food that grills evenly and consistently regardless of where it's placed on the cooking grate, and hassle free cleanup; you are able to focus on what it's is all about – bringing people together around the grill. The GS4 grilling system is composed of four key components: The INFINITY Ignition, High Performance Burners, FLAVORIZER BARS, and Grease Management System. These components ensure that every aspect of your grilling experience is easy and reliable; from the moment the burners are lit to the general maintenance of your grill. And together, create the strongest grilling engine within every GENESIS II and GENESIS II LX grill.

1. INFINITY Ignition
   The INFINITY Ignition is ensured to ignite every time. Backed by a generous warranty, rest assured that you'll be up-and-grilling the first time, every time.
2. High Performance Burners
   The unique, tapered shape delivers a consistent gas flow from front to back. This provides ultimate heat distribution, ensuring that food grills evenly and consistently anywhere on the cooking grate.
3. FLAVORIZER BARS
   The classic WEBER FLAVORIZER BARS are angled just right to catch drippings that smoke and sizzle, adding that irresistible smoky flavor that we all know and love to your food. Any drippings not vaporised follow the slope and are funneled away from the burners, down into the grease management system.
4. Grease Management System
   The grease management system helps with the removal of grease while reducing the risk of flare-ups. Drippings that are not vaporised by the FLAVORIZER BARS are funneled away from the burners into the disposable drip tray, located within the catch pan under the cookbox. Simply remove the catch pan and replace the drip tray as needed.

GENESIS II L X FEATURES

1. Side Tables with Integrated Tool Hooks
   Use the side tables to keep platters, seasonings, and tools within arm's reach. Hang your essential grilling tools on the hooks for easy access and organisation of your backyard workspace. The left side table folds down in models equipped with two and three burners.
2. HIGH+ Setting
   All burners can be turned up to the highest setting for an added boost of heat anywhere on the cooking grate. The HIGH+ setting provides a quicker preheat and higher grilling temperatures.
3. Grill Light
   The powerful LED illuminates the entire cooking area of the grill so that you see the true colour of your food. To save energy, the light will automatically turn off when the lid is closed.

4. GOURMET BBQ SYSTEM Cooking Grate
   Remove the circular grate insert and transform your grill into a griddle, poultry roaster, pizza stone or any of the other many GOURMET BBQ SYSTEM inserts to choose from.
5. TUCK-AWAY Warming Rack
   The TUCK-AWAY warming rack keeps food warm or toasts burger buns, as the main meal cooks below. The unique TUCK-AWAY feature allows you to fold it down when not in use, providing optimal grilling space and convenient in-the-grill storage. The warming rack can also be used as a tiered base for ELEVATIONS accessories.
6. iGRILL 3 Ready
   The newest grilling essential- the iGRILL 3 digital Bluetooth thermometer monitors your food from beginning to end, displaying the real-time temperature on your mobile device. Once you've downloaded the WEBER iGRILL app, connect the iGRILL to Bluetooth, and run up to four thermometer probes from your grill to the food. (Sold separately.)

7. Side Burner
   Use the side burner to simmer your specially crafted BBQ sauce or boil potatoes while the main course grills under the lid.
8. Lighted Control Knobs
   With a push of a button, the control knobs light up to offer optimal control while night-time grilling. Whether throwing a dinner party, or a daytime BBQ, you'll never have to sacrifice convenience or usability due to the time of day.
9. Easy Access Gas Cylinder Storage
   Mounting the gas cylinder to the outside of the grill makes the cylinder easy to access and remove; while also increasing storage space within the cabinet.
10. Grill Cabinet
    The grill cabinet provides extra storage space for all of your essential grilling tools. Everything you need at your fingertips, when you need it.

Tips and Hints

The Flame- Direct or Indirect

DIRECT HEAT SETUP

Use the direct method for small, tender pieces of food that take less than 20 minutes to cook, such as: hamburgers, steaks, chops, kebab sticks, boneless chicken pieces, fish fillets, shellfish, and sliced vegetables. With direct heat, the fire is right below the food. It sears the surfaces of the food, developing flavours, texture, and delicious caramelisation while cooking the food all the way to the centre.

INDIRECT HEAT SETUP

Use the indirect method for larger cuts of meat that require 20 minutes or more of barbecuing time, or for foods so delicate that direct exposure to the heat would dry them out or scorch them, such as: roasts, bone-in poultry pieces, whole fish, delicate fish fillets, whole chickens, turkeys, and ribs. Indirect heat can also be used for finishing thicker foods or bone-in cuts that have been seared or browned first over direct heat. With indirect heat, the heat is on both sides of the barbecue, or off to one side of the barbecue. The food sits over the unlit part on the cooking grate.

Barbecuing Do's and Don'ts
Preheat each and every time.
If the cooking grates aren't hot enough, food will stick, and you will likely never have a chance of searing properly or developing those handsome barbecue marks. Even if a recipe calls for medium or low heat, always preheat the barbecue on the highest setting first. Open the lid, turn up the heat, close the lid, and then let the cooking grate heat up for about ten minutes or until the lid thermometer reads 260°C (500°F).

Don't barbecue on dirty grates.
Tossing food onto the cooking grates before they have been cleaned is never a good idea. Leftover "stuff" on the grates acts like glue, binding it to the grates and your new food. To avoid tasting last night's dinner on today's lunch, make sure that you are barbecuing on a clean cooking grate. Once the grates are preheated, use a stainless steel bristle barbecue brush to make a clean, smooth surface.

Be present in the process.
Before firing up your barbecue, make sure that everything you need is within arm's reach. Don't forget your essential barbecuing tools, already oiled and seasoned food, glazes or sauces, and clean cooking platters for cooked food. Having to run back to your kitchen not only means missing out on the fun, but could also result in burning your food. French chefs call this "mise en place" (meaning, "put in place"). We call it "being present".

Create a little elbow room.
Packing too much food onto the cooking grates restricts your flexibility. Leave at least one-quarter of the cooking grates clear, with plenty of space between each food item, in order to get your tongs in there and easily move the food around. Sometimes barbecuing involves split-second decisions and the ability to jockey food from one area to another. So give yourself enough room to operate.

Try not to peek.
The lid on your barbecue is for more than just keeping the rain out. Most importantly, it's for preventing too much air from getting in, and too much heat and smoke from getting out. When the lid is closed, the cooking grates are hotter, the barbecuing times are faster, the smoky tastes are stronger, and the flareups are fewer. So put a lid on it!

Only flip once.
What's better than a juicy steak with a deep sear and plenty of beautifully caramelised bits? The key to accomplishing these results is to keep your food in place. Sometimes we have the tendency to flip our food before it reaches the desirable level of colour and flavour. In nearly all cases, you should turn food just once. If fiddling with it more than that, you are probably also opening the lid too much, which causes its own set of problems. So step back and trust the barbecue.

Know when to tame the flame.
When barbecuing, sometimes the most important thing to know is when to stop. The most reliable way to test doneness of your food is to invest in an instant-read thermometer. This slim little gem will help you pinpoint that critical moment when your food is at its best.

Don't be afraid to experiment.
Back in the 1950s, barbecuing meant one thing: meat (and only meat) charred over open flames. The modern day backyard chef doesn't need a kitchen in order to prepare a full course meal. Use your barbecue to make char-barbecued appetisers, sides, and even desserts. Register your barbecue to receive special content that will inspire you along the way. We'd love to join you on your barbecuing adventures.

SPATULA
Look for a long-handled spatula designed with a bent (offset) neck so that the blade is set lower than the handle. This makes it easier to lift food off the cooking grates.

TIMER
Avoid the disappointment of torching your dinner by simply setting a timer. Nothing fancy needed—just one that is reliable and easy to use.

Getting Started

Important Information about LP Gas & Gas Connections
What is LPG?
Liquefied petroleum gas, also called LPG or LP gas, is the flammable, petroleum-based product used to fuel your barbecue. It is a gas at moderate temperatures and pressure when it is not contained. But at moderate pressure inside a container, such as a cylinder, LPG is a liquid. As pressure is released from the cylinder, the liquid readily vaporises and becomes gas.

Safe Handling Tips for LPG Cylinders

• A dented or rusty LPG cylinder may be hazardous and should be checked by your LP gas supplier. Do not use a cylinder with a damaged valve.
• Although your LPG cylinder may appear to be empty, gas may still be present, and the cylinder should be transported and stored accordingly.
• The LPG cylinder must be installed, transported, and stored in an upright, secure position. Cylinders should not be dropped or handled roughly.
• Never store or transport the LPG cylinder where temperatures can reach 50°C (125°F) (the cylinder will become too hot to hold by hand).

LPG Cylinder Requirements

• Use cylinders with a minimum capacity of 3 kg and a maximum capacity of 13 kg.

What is a Regulator?
Your gas barbecue is equipped with a pressure regulator, which is a device to control and maintain uniform gas pressure as gas is released from the LPG cylinder.

Regulator and Hose Requirements

• In the United Kingdom, this barbecue must be fitted with a regulator complying with BS 3016, having a nominal output of 37 millibars.
• The length of the hose must not exceed 1.5 metres.
• Avoid kinking the hose.
• Replacement regulator and hose assemblies must be as specified by Weber-Stephen Products LLC.

Specific Requirements for Customers in Japan
LPG Cylinder Requirements

• For customers in Japan, use cylinders with a minimum capacity of 2 kg and a maximum capacity of 8 kg.

Hose Requirements

• For customers in Japan, the length of hose must be a minimum of 90 cm.

We recommend that you replace the gas hose assembly on your gas barbecue every five years. Some countries may have requirements that the gas hose be replaced within less than five years, in which case that country's requirement would take precedence. For replacement hose, regulator, and valve assemblies, contact the Customer Service Representative in your area using the contact information on our web site. Log on to weber.com.

BRUSH AND MOP
Look for a basting brush with heat-resistant silicone bristles and a long handle. A mop with long, cotton threads that sop up the thinner, vinegar-based sauces.

TONGS
Consider these to be an extension of your hand. The best tongs should have an effortless tension mechanism, comfortable hand grips, and a lock to keep them compact.

GRILLING PAN
Designed for food that is either too small or too delicate for the cooking grates, a perforated grilling pan keeps food right where it ought to be—on the grill, not in it.

LPG Cylinder Installation & Leak Checking
Connect the Regulator to the Cylinder

1. Check that all burner control knobs are in the off position. Check by pushing in and turning knobs clockwise.
2. Identify your regulator type and connect the regulator to the LPG cylinder by following the appropriate connection instructions.
   Note: Confirm that the LPG cylinder valve or regulator lever are closed before connecting.
   Connect by Turning Clockwise (A)
   Screw regulator onto cylinder by turning fitting clockwise (a). Position the regulator so that the vent hole (b) faces down.
   
   Connect by Turning Anti-Clockwise (B)
   Screw regulator onto cylinder by turning fitting anti-clockwise.
   
   Connect by Turning Lever and Snapping into Position (C)
   Turn regulator lever (a) clockwise to the off position. Push regulator down on cylinder valve until regulator snaps into position (b).
   
   Connect by Sliding Collar (D)
   Make sure regulator lever is in the off position (a). Slide the collar of the regulator up (b). Push the regulator down onto the cylinder valve and maintain pressure. Slide collar down to close (c). If regulator does not lock, repeat procedure.
   

Note: The regulator illustrations shown in this manual may not be similar to the regulator you are using for your grill, due to different country or regional regulations.

Placement of the LPG Cylinder

1. Place the cylinder on the ground outside the base cabinet on the right side of the grill. Turn the cylinder so the valve opening faces the front of the grill (E).
   

What is a Leak Check?
Once the LPG cylinder is properly installed, it is necessary to perform a leak check. A leak check is a reliable way to verify that gas is not escaping after you connect the cylinder. The fitting where the regulator connects to the cylinder should be tested each time a cylinder is refilled and reinstalled.

Checking for Gas Leaks

1. Wet fittings at cylinder and regulator with a soap and water solution, using a spray bottle, brush or rag. You can make your own soap and water solution by mixing 20% liquid soap with 80% water; or, you can purchase leak check solution in the plumbing section of any hardware store.
2. Identify your regulator type. Turn gas supply on by turning cylinder valve anti-clockwise (G) or by moving regulator lever to the on position (H).
   
3. If bubbles appear (I) at the regulator-to-cylinder connection or the regulator hose-to-regulator connection, there is a leak:
   
   1. Turn gas supply off. DO NOT OPERATE THE GRILL. Contact the Customer Service Representative in your area using the contact information on our website.
4. If bubbles do not appear, leak checking is complete:
   1. Turn gas supply off and rinse connections with water.

NOTE: Since some leak test solutions, including soap and water, may be slightly corrosive, all connections should be rinsed with water after checking for leaks.

Additional Leak Check Precautions
The fuel system in your grill features other connections and fittings. These factory-made connections have been thoroughly checked for gas leaks and the burners have been flame-tested. WEBER recommends performing an additional thorough leak check after assembly, as well as annually. Instructions for this can be found online at weber.com.

Disconnect the Regulator from the Cylinder

1. Confirm that the LPG cylinder valve or regulator lever are fully closed.
2. Disconnect the regulator.

Do not use a flame to check for gas leaks. Be sure there are no sparks or open flames in the area while you check for leaks.

Leaking gas may cause a fire or explosion.

Do not operate the barbecue if there is a gas leak present.

If you see, smell, or hear the hiss of gas escaping from the LPG cylinder:

1. Move away from LPG cylinder.
2. Do not attempt to correct the problem yourself.
3. Call the emergency fire services.

Always close the cylinder valve before disconnecting the regulator. Do not attempt to disconnect the gas regulator and hose assembly or any gas fitting while this barbecue is in operation.

Do not store a spare LPG cylinder under or near this barbecue. Never fill the cylinder beyond 80% full. Failure to follow these statements exactly may result in a fire causing death or serious injury.

FOIL PANS
Perfect for lining the catch pan to make cleanup convenient and easy.

GENESIS II LX Burner Valve Orifice Sizes & Consumption Data

Operation

The Very First Time You Grill
Perform an Initial Burn-Off
Heat the grill on the highest setting, with the lid closed, for at least 20 minutes prior to grilling for the first time.

Every Time You Grill
Meal-to-Meal Maintenance
The Meal-To-Meal Maintenance plan includes the following simple, yet important, steps that should always be performed prior to grilling.

Check for Grease
Your grill was built with a grease management system that funnels grease away from food and into a disposable container. As you cook, grease is channeled down the slide-out grease tray and into a disposable drip tray that lines the catch pan. This system should be cleaned each and every time you grill to prevent fires.

1. Confirm that the grill is off and cool.
2. Remove the slide-out grease tray by pulling the tray out of the cabinet (A). Remove excess grease with a plastic scraper.
   
3. Remove the catch pan (B). Check for excessive amounts of grease in the disposable drip tray that lines the catch pan. Discard disposable drip pan when necessary and replace with a new one.
   
4. Reinstall all components.

Inspect the Hose
Routine inspection of the hose is necessary.

1. Confirm that the grill is off and cool.
2. Check hose for any signs of cracking, abrasions, or cuts (C). If the hose is found to be damaged in any way, do not use the grill.
   

Preheat the Grill
Preheating the grill is critical to successful grilling. Preheating helps to prevent food from sticking to the grate and gets the grate hot enough to sear properly. It also burns off residue of a previously cooked meal.

1. Open the grill lid.
2. Ignite your grill according to the ignition instructions in this owner's manual.
3. Close lid.
4. Preheat the grill with all burners on the HIGH+ position for 10 to 15 minutes or until thermometer registers 260°C (500°F) (D).
   

Clean the Cooking Grate
After preheating, any bits of food or debris left over from previous use will be easier to remove. Cleaned grates will also prevent your next meal from sticking.

1. Brush the grates with a stainless steel bristle grill brush immediately after preheating (E).
   

Do not line the slide-out grease tray or cookbox with aluminum foil.

Check the slide-out grease tray and catch pan for grease build-up before each use. Remove excess grease to avoid a grease fire.

Use heat-resistant barbecue mitts or gloves when operating grill.

Grill brushes should be checked for loose bristles and excessive wear on a regular basis. Replace brush if any loose bristles are found on cooking grates or brush. WEBER recommends purchasing a new stainless steel bristle grill brush at the beginning of every spring.

If the hose is found to be damaged in any way, do not use the grill. Replace using only WEBER authorized replacement hose.

Keep ventilation openings around tank clear and free of debris.

BARBECUE MITTS
When it doubt, wear them. The good ones are insulated and protect both hand and forearm.

Igniting the Main Burners
Using the Electronic Ignition to Ignite the Main Burners
Each control knob operates an individual burner, and each burner ignites independently. Ignite the main burners starting from left to right. All burners should be lit for preheating, however, all burners do not have to be lit while grilling.

1. Open the grill lid (A).
   
2. Check that all burner control knobs (including side burner control knob) are in the off position. Check by pushing in and turning knobs clockwise (B).
   Note: It is important that all burner control knobs are in the off position before turning on the LPG cylinder.
   
3. Turn gas supply on by turning cylinder valve anti-clockwise or by moving regulator lever to the on position depending on your regulator/cylinder connection.
4. Begin with the burner furthest to the left. Push the burner control knob in and slowly turn it anticlockwise toward the ignite position until you hear ticking (C). Once ticking starts, hold the knob in that position for 1-2 seconds and then slowly continue turning anti-clockwise. The burner should ignite before the HIGH+ position.
   
5. Check that the burner is lit by looking through the cooking grates and through the half-circle cutout in the FLAVORIZER BAR.
6. Once burner is ignited, continue turning the knob anti-clockwise until you reach the desired position.
7. If the burner does not ignite within 4 seconds, turn burner control knob to the off position and wait five minutes to allow the gas to clear before attempting to light the burner again.
8. If the burner ignites, repeat steps 4 through 6 to light the remaining main burners.

Should the burners fail to ignite using the electronic ignition, refer to the TROUBLESHOOTING section. There you will find instructions on igniting the grill with a match to help determine the exact problem.

To Extinguish Main Burners

1. Push each burner control knob in and then turn clockwise all the way to the off position.
2. Turn gas supply off at the LPG cylinder.

Open lid during ignition.

Do not lean over open grill while igniting or cooking.

If ignition does not occur within four seconds of attempting to light the first burner, turn the burner control knob to the off position. Wait five minutes to allow accumulated gas to dissipate, and then repeat the lighting procedure.

Optimize Grill Space

Using the TUCK-AWAY Warming Rack
Use the warming rack up to keep food warm or fold it down when not in use. The warming rack can also be used when folded down as a tiered base for ELEVATIONS accessories. To fold the warming rack down, lift rack slightly and rotate downward. Use heat-resistant mitts or gloves when adjusting rack.

Igniting the Side Burner
Using the Electronic Ignition to Ignite the Side Burner
If one or more of the main burners on your grill are already lit and you would like to ignite the side burner, skip to step 3. If none of the main burners are lit and you are only using the side burner, start with step 1.

1. Check that the side burner control knob is in the off position. Check by pushing in and turning knob clockwise (A). Also check that all main burner control knobs are in the off position.
   Note: It is important that all burner control knobs are in the off position before turning on the LPG cylinder.
   
2. Turn gas supply on by turning cylinder valve anti-clockwise or by moving regulator lever to the on position depending on your regulator/cylinder connection.
3. Open the side burner lid (B).
   
4. Push the side burner control knob in and slowly turn it anti-clockwise toward the ignite position until you hear ticking (C). Once ticking starts, hold the knob in that position for 1-2 seconds and then slowly continue turning anti-clockwise. The burner should ignite at the high position.
   
5. Check that the side burner is lit. The side burner flame may be difficult to see on a bright sunny day.
6. Once side burner is ignited, continue turning the knob anti-clockwise until you reach the desired position.
7. If the side burner does not ignite within 4 seconds, turn side burner control knob to the off position and wait five minutes to allow the gas to clear before attempting to light the burner again.

Should the side burner fail to ignite using the electronic ignition, refer to the TROUBLESHOOTING section. There you will find instructions on igniting the side burner with a match to help determine the exact problem.

To Extinguish Side Burner

1. Push side burner control knob in and then turn clockwise all the way to the off position.
2. Turn gas supply off at the LPG cylinder.

Open side burner lid during ignition.

Do not lean over side burner while igniting or cooking.

If ignition does not occur within four seconds of attempting to light the side burner, turn the burner control knob to the off position. Wait five minutes to allow accumulated gas to dissipate, and then repeat the lighting procedure.

Grilling at Night
Using the Grill Light
To activate the grill light press the awake button. The grill light has a tilt sensor that will turn on the light if the grill lid is opened and turn off the light when the grill lid is closed. If the lid is left open or closed for more than 30 minutes, the grill light will automatically deactivate. To turn the light back on, press the awake button.
NOTE: The light does not turn off by pressing the awake button.

Using the Lighted Control Knobs
The burner control knobs light up with the push of a button. To turn on or off, simply push the power button located on the right side of the control panel.

Product Care

Cleaning and Maintenance
Cleaning the Inside of the Grill
Over time, the performance of your grill can diminish if it has not been maintained properly. Low temperatures, uneven heat, and food sticking to cooking grates are all signs that cleaning and maintenance are overdue. When your grill is off and cool, start by cleaning the inside, from the top down. A thorough cleaning is recommended at least twice a year. Consistent use may require quarterly cleanings.

Cleaning the Lid
From time to time you may notice "paint-like" flakes on the inside of the lid. During use, grease and smoke vapours slowly change into carbon and deposit on the inside of your lid. These deposits will eventually peel, and look very similar to paint. These deposits are nontoxic, but the flakes could fall onto your food if you do not clean the lid regularly.

1. Brush the carbonised grease from the inside of the lid with a stainless steel bristle grill brush (A). To minimise further build-up, the inside of the lid can be wiped with a paper towel after grilling while the grill is still warm (not hot).
   

Cleaning the Cooking Grates
If you have been cleaning your cooking grates as recommended, the debris on your grates should be minimal.

1. With grates installed, brush the debris off your cooking grate with a stainless steel bristle grill brush (B).
   
2. Take the grates out and set aside.

Cleaning the FLAVORIZER BARS
FLAVORIZER BARS catch drippings that smoke and sizzle, adding flavour to your food. Any drippings that are not vaporised by the FLAVORIZER BARS are funneled away from the burners. This helps prevent flare-ups inside of your grill, and protects the burners from getting clogged.

1. Scrape the FLAVORIZER BARS with a plastic scraper (C).
   
2. If necessary, brush the FLAVORIZER BARS with a stainless steel bristle grill brush.
3. Remove FLAVORIZER BARS and set aside.

Cleaning the Burners
Two areas on the burners that are key to optimum performance are the ports (small raised openings running along the length of the burners) and the spider/insect screens on the ends of the burner. Keeping these areas clean is essential for safe operation.

Cleaning the Burner Ports

1. Use a clean stainless steel bristle grill brush to clean the outside of the burners by brushing across the top of the burner ports (D).
   
2. When cleaning the burners, avoid damaging the ignition electrode by carefully brushing around it (E).
   

Cleaning the Spider Screens

1. Locate the ends of the burners on the underside of the control panel where they meet the valves.
2. Clean the spider/insect screens on each of the burners using a soft bristle brush (F).
   

Turn your barbecue off and wait for it to cool before thoroughly cleaning.

Over time, the development of rough surfaces can form on the FLAVORIZER BARS. Wearing gloves is recommended when handling. Do not clean FLAVORIZER BARS or cooking grates in a sink, dishwasher, or selfcleaning oven.

When cleaning the burners, never use a brush that has already been used to clean the cooking grates. Never put sharp objects into the burner port holes.

Do not place any barbecue components onto the side tables as they may scratch the paint or stainless steel surfaces.

Do not use any of the following to clean your barbecue: abrasive stainless steel polishes or paints, cleaners that contain acid, mineral spirits or xylene, oven cleaner, abrasive cleansers (kitchen cleansers), or abrasive cleaning pads.

Cleaning the Heat Deflectors
Located under the burners, the heat deflectors distribute heat evenly throughout the cookbox while cooking. Keeping heat deflectors clean will enhance the cooking performance of your grill.

1. Scrape the heat deflectors with a plastic scraper (G).
   
2. If necessary, brush the heat deflectors with a stainless steel bristle grill brush.
3. Remove heat deflectors and set aside.

Cleaning the Cookbox
Look inside the cookbox for any grease accumulation or leftover food particles. Excessive accumulation can cause a fire.

1. Use a plastic scraper to scrape debris off the sides and bottom of the grill into the opening in the bottom of the cookbox (H). This opening leads debris into the slide-out grease tray.
   

Cleaning the Grease Management System
The grease management system consists of an angled slide-out grease tray and a catch pan. These components were designed to be easily removed, cleaned, and replaced; an essential step every time you prepare to grill. Instructions on inspecting the grease management system can be found in MEAL-TO- MEAL MAINTENANCE.

Cleaning the Outside of the Grill
The outside of your grill may include stainless steel, porcelain-enameled, and plastic surfaces. WEBER recommends the following methods based on the surface type.

Cleaning Stainless Steel Surfaces
Clean stainless steel using a non-toxic, non-abrasive stainless steel cleaner or polish designed for use on outdoor products and grills. Use a microfiber cloth to clean in the direction of the grain of the stainless steel. Do not use paper towels.
Note: Do not risk scratching your stainless steel with abrasive pastes. Pastes do not clean or polish. They will change the colour of the metal by removing the top chromium oxide film coating.

Cleaning Painted, Porcelain-Enameled Surfaces and Plastic Components
Clean painted, porcelain-enameled and plastic components with warm soapy water, and paper towels or cloth. After wiping down the surfaces, rinse and dry thoroughly.

Cleaning the Outside of Grills that are in Unique Environments
If your grill is subject to a particularly harsh environment, you will want to clean the outside more often. Acid rain, pool chemicals, and salt water can cause surface rusting to appear. Wipe down the outside of your grill with warm soapy water. Follow up with a rinse and thorough drying. Additionally, you may want to apply a stainless steel cleaner weekly to prevent surface rust.

Cleaning the Grill Light
Wipe the grill light clean with a damp cloth only. The light is weather resistant to rain and snow, but not waterproof. Do not submerge in water.

THERMOMETER
Small and relatively inexpensive, this gadget is essential for quickly gauging the internal temperature of the meat when grilling.

GRILL BRUSH
A must-use before you even dream of grilling. A quick once-over on hot grates prevents the charred remains of meals past from sticking to your meals present.

Troubleshooting

MAIN BURNER(S) or SIDE BURNER WILL NOT IGNITE

SYMPTOM

• Main burners or side burner do(es) not ignite when following the electronic ignition instructions in the "Operation" section of this owner's manual.

CAUSE	SOLUTION
There is a problem with gas flow.	If any burner does not ignite, the first step is to determine if there is gas flowing to the burner(s). To check this, follow the instructions below for "Lighting Your Grill with a Match." If match lighting IS NOT successful, follow the "GAS FLOW" troubleshooting suggestions on the next page.
There is a problem with the electronic ignition system.	If any burner does not ignite, the first step is to determine if there is gas flowing to the burner(s). To check this, follow the instructions below for "Lighting Your Grill with a Match." If match lighting IS successful, follow the instructions for "Checking the Components of the Electronic Ignition System."

Lighting Your Grill with a Match
Using a Match to Determine if there is Gas Flow to the Main Burners

1. Open the grill lid.
2. Check that all burner control knobs (including side burner control knob) are in the off position. Check by pushing in and turning knobs clockwise. Note: It is important that all burner control knobs are in the off position before turning on the LPG cylinder.
3. Turn gas supply on by turning cylinder valve anti-clockwise or by moving regulator lever to the on position depending on your regulator/cylinder connection.
4. Begin with the burner furthest to the left. Put match in the matchstick holder and strike match. (Matchstick holder is located under right side table.) Insert lit match down through the cooking grates, past the FLAVORIZER BARS and next to the burner (A).
   
5. Push the burner control knob in and slowly turn it anti-clockwise toward the ignite position until you hear ticking. Once ticking starts, hold the knob in that position for 1-2 seconds and then slowly continue turning anti-clockwise. The burner should ignite before the HIGH+ position.
6. Check that the burner is lit by looking through the cooking grates and through the half-circle cutout in the FLAVORIZER BAR.
7. If the burner does not ignite within 4 seconds, turn burner control knob to the off position and wait five minutes to allow the gas to clear before attempting to light the burner again. If repeated attempts fail, follow the gas flow troubleshooting instructions on the next page.
8. If the burner ignites, the problem lies in the ignition system. Follow the instructions for "Checking the Components of the Electronic Ignition System".
9. Replace the matchstick holder by hanging underneath right side table (B).
   

Using a Match to Determine if there is Gas Flow to the Side Burner

1. Open the side burner lid.
2. Check that the side burner control knob is in the off position. Check by pushing in and turning knob clockwise. Also check that all main burner control knobs are in the off position. Note: It is important that all burner control knobs are in the off position before turning on the LPG cylinder.
3. Turn gas supply on by turning cylinder valve anti-clockwise or by moving regulator lever to the on position depending on your regulator/cylinder connection.
4. Put match in the matchstick holder and strike match. (Matchstick holder is located under right side table.) Hold lit match by the side burner (C).
   
5. Push the side burner control knob in and slowly turn it anti-clockwise toward the ignite position until you hear ticking. Once ticking starts, hold the knob in that position for 1-2 seconds and then slowly continue turning anti-clockwise. The burner should ignite at the high position.
6. Check that the side burner is lit. The side burner flame may be difficult to see on a bright sunny day.
7. If the side burner does not ignite within 4 seconds, turn side burner control knob to the off position and wait five minutes to allow the gas to clear before attempting to light the burner again. If repeated attempts fail, follow the gas flow troubleshooting instructions on the next page.
8. If the burner ignites, follow the instructions for "Checking the Components of the Electronic Ignition System".

Do not attempt to make any repair to gas carrying, gas burning, ignition components or structural components without contacting Weber-Stephen Products LLC, Customer Service Department.

Failure to use genuine Weber- Stephen parts for any repair or replacement will void all warranty protection.

The burner tube openings must be positioned properly over the valve orifices.

GAS FLOW
SYMPTOM

Barbecue does not reach desired temperature or heats unevenly

One or more of the burners fail to ignite

Flame is low when burner is on high position

Flames do not run the whole length of the burner

Burner flame pattern is erratic

CAUSE	SOLUTION
Some countries have regulators with a "flow limiting device" that has been activated. This safety feature built into the regulator restricts the gas flow in the event of a gas leak. You can inadvertently activate this safety feature without having a gas leak. This typically occurs when you turn on the gas at the LPG cylinder and one or more of the control knobs are not in the off position. It may also occur if you turn on the LPG cylinder too quickly.	Reset the "flow limiting device" by closing the LPG cylinder valve and turning all the burner control knobs to the off position. Wait five minutes to allow accumulated gas to dissipate, then ignite the barbecue again following the instructions in the "Operation" section.
The LPG cylinder is low or empty.	Refill LPG cylinder.
Fuel hose is bent or kinked.	Straighten fuel hose.
Burner ports are dirty.	Clean burner ports. Refer to "Cleaning the Burner Ports."

SYMPTOM

• Gas is smelled in conjunction with burner flames that appear yellow and lazy.

CAUSE	SOLUTION
Spider screens on the burners are obstructed.	Clean spider screens. Refer to "Cleaning the Spider Screens" in the Product Care section. Also refer to the illustrations and information in this section about proper flame pattern and spider screens.

SYMPTOM

The smell of gas and/or a light hissing sound

CAUSE	SOLUTION
The internal rubber seal in the LPG cylinder valve could be damaged.	Inspect the rubber seal for damage. If damaged, return LPG cylinder to local retailer.

Proper Burner Flame Pattern
The burners in your grill were factory set for the correct air and gas mixture. When the burners are performing correctly, you will see a specific flame pattern. The tips may occasionally flicker yellow (A), with a descending light blue (B) to dark blue flame (C).

Spider Screens
The combustion air openings of the burners (D) are fitted with stainless steel screens to prevent spiders and other insects from spinning webs and building nests inside the burners. Additionally, dust and debris can accumulate on the outside of the spider/insect screen and obstruct the oxygen flow to the burners.

Checking the Components of the Electronic Ignition System
When turning the control knob you should hear a ticking sound. If you cannot hear the ticking sound, check the batteries, then check the wires.

Checking the Batteries
There are three potential issues with the batteries that supply the power to your ignition modules that need to be checked:

1. Some batteries have a plastic protective wrap around them. (Do not confuse this plastic with the battery label.) Check that this plastic wrap is removed.
2. Confirm that the batteries in both ignition modules are installed correctly (E).
   
3. If the batteries are old, replace them with new batteries.

Checking the Wires

1. Make sure the ignition wires are properly attached to the ignition modules. The wire terminals are colour coded to correspond with the terminals on the ignition module. The number of wires will vary per model.

GREASY BARBECUE (Peeling Paint & Flare-Ups)
SYMPTOM

• Inside of lid appears to have the appearance of peeling paint.
  

CAUSE	SOLUTION
The flakes you see are accumulated cooking vapours that have turned into carbon.	This happens over time after repeated use of your barbecue. This is not a defect. Clean the lid. Refer to the "Product Care" section.

SYMPTOM

Experiencing flare-ups when barbecuing or preheating

CAUSE	SOLUTION
There is leftover food from the previous meal.	Always preheat the barbecue on the highest setting for 10 to 15 minutes.
The inside of the barbecue needs to be cleaned thoroughly.	Follow the steps in the "Cleaning and Maintenance" section to clean the barbecue inside from the top down.

LIGHTED CONTROL KNOBS
SYMPTOM

• Control knobs do not turn on after pressing power button.

CAUSE	SOLUTION
Batteries are old.	Install new batteries. Refer to "Replacing Batteries for the Lighted Control Knobs" on this page.

Replacing Batteries for the Lighted Control Knobs
Use alkaline batteries only. Do not mix old and new batteries or different types of batteries (standard, alkaline, or rechargeable). If you do not plan to use the light for a month or more, remove the batteries.

1. Locate the battery housing on the inside of the cabinet on the bottom right side.
2. Turn battery housing anti-clockwise to open (A).
   
3. Replace three D batteries (B).
   

REPLACEMENT PARTS
To obtain replacement parts, contact the local retailer in your area or log onto weber.com.

CALL CUSTOMER SERVICE
If you are still experiencing any problems, contact the Customer Service Representative in your area using the contact information on weber.com.

Replacement Parts

Important Safety Information

DANGER, WARNING, and CAUTION statements are used throughout this Owner's Manual to emphasise critical and important information. Read and follow these statements to help ensure safety and prevent property damage. The statements are defined below.

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

If you smell gas:

• Shut off gas to the appliance (barbecue).
• Extinguish any open flame.
• Open lid.
• If odour continues, keep away from the appliance (barbecue) and immediately call your gas supplier or the emergency fire services.

USE OUTDOORS ONLY. READ THE INSTRUCTIONS BEFORE USING THE APPLIANCE (BARBECUE).

Installation and Assembly

This barbecue is not intended to be installed in or on recreational vehicles or boats.

Do not use this barbecue unless all parts are in place and the barbecue was properly assembled according to the assembly instructions.

Do not build this model of barbecue in any built-in or slide-in construction.

Do not modify the appliance. LP gas is not natural gas. The conversion or attempted use of natural gas in an LP gas unit or LP gas in a natural gas unit is unsafe and will void your warranty.

• Any parts sealed by the manufacturer must not be altered by the user.

Operation

Only use the barbecue outdoors in a wellventilated area. Do not use in a garage, building, breezeway, tent, any other enclosed area, or beneath an overhead combustible structure.

Do not use the barbecue in any vehicle or in any storage or cargo area of any vehicle. This includes, but is not limited to, cars, trucks, station wagons, mini-vans, sport utility vehicles, recreational vehicles, and boats.

When in use, combustible materials should not be within 61 cm (24 inches) of the back or sides of the barbecue.

Keep the cooking area clear of flammable vapours and liquids such as petrol, alcohol, etc., and combustible materials.

This appliance must be kept away from flammable materials during use.

Do not put a barbecue cover or anything flammable on, or in the storage area under the barbecue while it is in operation or is hot.

Should a grease fire occur, turn off all burners and leave lid closed until fire is out.

Accessible parts may be very hot. Keep young children away.

The use of alcohol, prescription drugs, non-prescription drugs, or illegal drugs may impair the consumer's ability to properly and safely assemble, move, store, or operate the barbecue.

Never leave the barbecue unattended during pre-heating or use. Exercise caution when using this barbecue. The entire cookbox gets hot when in use.

Use heat-resistant barbecue mitts or gloves when operating barbecue.

Do not move the appliance during use.

Keep any electrical supply cord and the fuel supply hose away from any heated surfaces.

This product has been safety-tested and is only certified for use in a specific country. Refer to country designation located on outside of box.

• Do not use charcoal, briquettes or lava rock in the barbecue.

Storage and/or Nonuse

Turn off the gas supply at the gas cylinder after use.

LPG cylinders must be stored outdoors out of the reach of children and must not be stored in a building, garage or any other enclosed space.

After a period of storage and/or nonuse, the barbecue should be checked for gas leaks and burner obstructions before use.

• Storage of the barbecue indoors is permissible only if the LPG cylinder is disconnected and removed from the barbecue.

The grills illustrated in this Owner's Manual may vary slightly from the model purchased.

Unlock grilling happiness: Register your GENESIS II LX gas grill and receive special content to make you the ultimate backyard hero. Registration is easy and we only ask a few quick questions. In less than two minutes, activate your unique WEBER ID, and unlock a lifetime of WEBER knowledge and guidance. Stay inspired along the way.

Documents / Resources

References

• BBQ Grills | Weber Charcoal & Gas Grills

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Weber Genesis II LX, S-340 GBS, S-640 GBS Manual