Weber Summit 650 User manual

SUMMITTM 450 & 650
LP Gas Barbecues
Operating Guide
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72626 01/24/02
Read before assembly
 DANGER
If you smell gas:
1. Shut off gas to the appliance.
2. Extinguish any open flames.
3. Open lid.
4. If odor continues, keep away from the
appliance and immediately call your gas
supplier or your fire service. Leaking gas
may cause a fire or explosion which can
cause serious bodily injury or death, or
damage to property.
 WARNING:
1. Do not store or use petrol or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
2. A gas supply cylinder not connected for
use should not be stored in the vicinity
of this or any other appliance.
 WARNING: Follow all leak-check
procedures carefully in this manual prior
to barbecue operation. Do this even if
barbecue was dealer assembled.
 WARNING: Do not try to light the Weber
Gas Barbecue without first reading the
“Lighting” instructions in this manual.
INFORMATION FOR THE INSTALLER:
This manual must remain with the owner,
who should keep it for future use.
OUTDOOR USE ONLY.

2
 DANGER
Failure to follow the Dangers, Warnings and Cautions contained in this Owner’s Manual
may result in serious bodily injury or death, or in a fire or an explosion causing damage
to property.
 WARNINGS
 Do not store a spare or disconnected liquid propane cylinder under or near this barbecue.
 Improper assembly may be dangerous. Please carefully follow the assembly instructions in
this manual.
 After a period of storage, and/or non-use, the Weber Gas Barbecue should be checked for
gas leaks and burner obstructions before use. See instructions in this manual for correct
procedures.
 Do not operate the Weber gas barbecue if there is a gas leak present.
 Do not use a flame to check for gas leaks.
 Combustible materials should never be within 24 inches of the top, bottom, back or sides
of your Weber gas barbecue.
 Do not put a barbecue cover or anything flammable on, or in the storage area under
the barbecue.
 Your Weber Gas Barbecue should never be used by children. Accessible parts of the
barbecue may be very hot. Keep young children away while it is in use.
 You should exercise reasonable care when operating your Weber gas barbecue. It will be
hot during cooking or cleaning and should never be left unattended, or moved while
in operation.
 Should the burners go out while in operation, turn all gas valves off. Open the lid and wait
five minutes before attempting to relight, using the lighting instructions.
 Do not use charcoal or lava rock in your Weber gas barbecue.
 Never lean over open grill or place hands or fingers on the front edge of the cooking box.
 Should a grease fire occur, turn off all burners and leave lid closed until fire is out.
 Do not enlarge valve orifices or burner ports when cleaning the valves or burners.
 The Weber Gas Barbecue should be thoroughly cleaned on a regular basis.
 Liquid propane gas is not natural gas. The conversion or attempted use of natural gas in a
liquid propane unit or liquid propane gas in a natural gas unit is dangerous and will void
your warranty.
 Do not attempt to disconnect any gas fitting while your barbecue is in operation.
 Use heat-resistant barbecue mitts or gloves when operating barbecue.
 Combustion by-products produced when using this product contain chemicals known to
the state of California to cause cancer, birth defects, or other reproductive harm.
LIQUID PROPANE GAS UNITS ONLY:
 Use the regulator that is supplied with your Weber Gas Barbecue.
 Do not attempt to disconnect the gas regulator or any gas fitting while your barbecue
is in operation.
 A dented or rusty liquid propane cylinder may be hazardous and should be checked by
your liquid propane supplier. Do not use a liquid propane cylinder with a damaged valve.
 Although your liquid propane cylinder may appear to be empty, gas may still be present,
and the cylinder should be transported and stored accordingly.
 If you see, smell or hear the hiss of escaping gas from the liquid propane cylinder:
1. Move away from liquid propane cylinder.
2. Do not attempt to correct the problem yourself.
3. Call your fire department.

3
TABLE OF CONTENTS
Warnings 2
Warranty 4
A Word of Thanks 4
General Instructions 5
Operating Area 5
Storage 5
*REFER TO YOUR STEP-BY-STEP SECTION AT
THIS TIME
Lighting 6-7
Crossover Ignition System 6
To Extinguish 7
Manual Lighting 7-8
To Extinguish 8
Cooking 9
Storage 9
Cleaning 9
Steam-N-Chips Smoker 10
Refilling The Liquid Propane Cylinder 11
Important LP Cylinder Information 11
Connect Then Filled
Liquid Propane Cylinder 11-12
Safe Handling Tips For Liquid
Propane Gas Cylinders 12
General Maintenance 13-16
Spider/Insect Screens 13
Inspection and Cleaning of the
Spider/Insect Screens 13
Main Burner Flame Pattern 14
Main Burner Cleaning Procedure 14
Replacing Main Burners 14-15
Crossover Ignition System Operations 16
Troubleshooting 17
Patents and Trademarks 18

4
Thank you for choosing a Weber Barbecue. Our family here at Weber has worked hard to produce the
highest quality products for your satisfaction. While we give much attention to our products, an occasional
error may occur. Our knowledgeable Customer Service staff is prepared to help you with any problems with
parts or assembly. Call our toll free number. For quicker service, please have your owner’s manual and
serial number available for reference. We also welcome any comments or suggestions you might have
regarding our products. We wish you the best in outdoor cooking enjoyment.
A WORD OF THANKS
Weber-Stephen Products Co. (Weber) hereby warrants to the ORIGINAL PURCHASER of this Weber Gas Grill that it will
be free of defects in material and workmanship from the date of purchase as follows:
Aluminum Castings, lifetime, 1 year paint
Cooking Grates, 7 years no rust through
Flavorizer Bars, 7 year no rust through
All Remaining Parts, 5 years,
When assembled and operated in accordance with the printed instructions accompanying it.
Weber may require reasonable proof of your date of purchase. THEREFORE, YOU SHOULD RETAIN YOUR SALES
RECEIPT OR INVOICE.
This Limited Warranty shall be limited to the repair or replacement of parts that prove defective under normal use and
service and which on examination shall indicate, to Weber’s satisfaction, they are defective. Before returning any parts,
contact the Customer Service Representative in your region using the contact information sheet provided with your
manual. If Weber confirms the defect and approves the claim, Weber will elect to replace such parts without charge.
If you are required to return defective parts, transportation charges must be prepaid. Weber will return parts to the
purchaser, freight or postage prepaid.
This Limited Warranty does not cover any failures or operating difficulties due to accident, abuse, misuse, alteration,
misapplication, vandalism, improper installation or improper maintenance or service, or failure to perform normal and
routine maintenance, including but not limited to damage caused by insects within the burner tubes, as set out in this
owner’s manual.
Deterioration or damage due to severe weather conditions such as hail, hurricanes, earthquakes or tornadoes,
discoloration due to exposure to chemicals either directly or in the atmosphere, is not covered by this Limited Warranty.
There are no other express warrants except as set forth herein and any applicable implied warranties of merchantability
and fitness are limited in duration to the period of coverage of this express written Limited Warranty. Some regions do
not allow limitation on how long an implied warranty lasts, so this limitation may not apply to you.
Weber is not liable for any special, indirect or consequential damages. Some regions do not allow the exclusion or
limitation of incidental or consequential damages, so this limitation or exclusion may not apply to you.
Weber does not authorize any person or company to assume for it any other obligation or liability in connection with
the sale, installation, use, removal, return, or replacement of its equipment; and no such representations are binding
on Weber.
This Warranty applies only to products sold at retail.
WEBER-STEPHEN PRODUCTS CO.
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
USA
WARRANTY

5
GENERAL INSTRUCTIONS
Your Weber Gas Barbecue is a portable outdoor cooking
appliance. With the Weber Gas Barbecue you can grill,
barbecue, roast and bake with results that are difficult to
duplicate with indoor kitchen appliances. The closed lid
and Flavorizer®Bars produce that “outdoor”flavor in
the food.
The Weber Gas Barbecue is portable so you can easily
change its location in your yard or on your patio.
Portability means you can take your Weber Gas
Barbecue with, if you move.
Liquid Propane (LP) gas supply is easy to use and gives
you more cooking control than charcoal fuel.
•These instructions will give you the minimum
requirements for assembling your Weber Gas
Barbecue. Please read the instructions carefully before
using your Weber Gas Barbecue. Improper assembly
can be dangerous.
•Not for use by children.
•If there are local codes that apply to portable gas grills,
you will have to conform to them. If there are no local
codes, you must conform to the latest edition of the
National Fuel Gas Code: ANSI Z 223.1.
•The pressure regulator supplied with the Weber Gas
Barbecue must be used. This regulator is set for
10.5 inches of water column (pressure).
•This Weber Gas Barbecue is designed for use with
liquid propane (LP) gas only. Do not use with natural
(piped in city) gas. The valves, orifices, hose and
regulator are for LP gas only.
•Do not use with charcoal fuel.
•Check that the area under the control panel and the
bottom tray are free from debris that might obstruct the
flow of combustion or ventilation air.
•The areas around the LP cylinder must be free and
clear from debris.
For Installation in Canada
These instructions, while generally acceptable, do not
necessarily comply with the Canadian Installation codes,
particularly with piping above and below ground. In
Canada the installation of this appliance must comply
with local codes and/or Standard CAN/CGA-B149.2
(Installation Code for Propane Burning Appliances
and Equipment).
Storage
•The gas must be turned OFF at the LP cylinder when
the Weber Gas Barbecue is not in use.
•When the Weber Gas Barbecue is stored indoors, the
gas supply must be disconnected and the LP cylinder
stored outdoors in a well-ventilated space.
•LP cylinders must be stored outdoors in a well-
ventilated area out of the reach of children.
Disconnected LP cylinders must not be stored in a
building, garage or any other enclosed area.
•When the LP cylinder is not disconnected from the
Weber Gas Barbecue, the appliance and LP cylinder
must be kept outdoors in a well-ventilated space.
Operating
 WARNING: This appliance is intended for outdoor
use only and should never be used in garages and
roofed or enclosed porches or verandas.
 WARNING: The Weber Gas Barbecue must never
be used under an unprotected combustible roof or
overhang.
 WARNING: The barbecue should not be used when
combustible materials are within 60 cm. of the top,
bottom, back or sides of the grill.
 WARNING: Your Weber Gas Barbecue is not
intended to be installed in or on caravans
and/or boats.
 WARNING: When in use, the entire barbecue gets
hot. Never leave it unattended.
 WARNING: Keep any electrical supply cord and the
fuel supply hose away from any heated surface.
 WARNING: Keep the cooking area clear of
flammable vapors and liquids, such as petrol,
alcohol, etc., and combustible materials.
 WARNING: Never store an extra (spare) gas supply
cylinder near the Weber Gas Barbecue.
 WARNING: This appliance gets very hot. Take
special care when children or elderly people
are present
 WARNING: Do not move the appliance while it
is alight.
REFER TO YOUR STEP-BY-
STEP GUIDE AT THIS TIME
FOR BARBECUE ASSEMBLY
WARNING: Make sure your barbecue is set up
properly and leak checked before attempting
to operate.

1
3
2
1
3
2
6
Crossover Ignition System
LIGHTING
Crossover Ignition System
Summit 450
Summit 650
EACH HEAT ZONE OPERATES INDEPENDENTLY
Summary lighting instructions are on the control panel.
 DANGER
Failure to open the lid while igniting the barbecue’s
burners, or not waiting 5 minutes to allow the gas to
clear if the barbecue does not light, may result in an
explosive flare-up which can cause serious bodily
injury or death.
Crossover Ignition®System
Note - The Crossover Ignition System ignites the front
burner with a spark from the igniter electrode inside the
Gas Catcher™ Ignition Chamber. You generate the
energy for the spark by pushing the Crossover Ignition
Button until it clicks.
 WARNING: Check hose before each use of
barbecue for nicks, cracking, abrasions or cuts.
If the hose is found to be damaged in any way,
do not use the barbecue. Replace using only
Weber authorized replacement hose. Contact the
Customer Service Representative in your region
using the contact information sheet provided with
your manual.
1) Open the lid.
2) Make sure all burner control knobs are turned OFF.
(Push control knob down and turn clockwise to ensure
that it is in the OFF position.)
3) Turn the cylinder on by turning the cylinder valve
counterclockwise.
 WARNING: Do not lean over the open barbecue.
Keep your face and body at least one foot away
from the matchlight hole when lighting the
barbecue.
4) Select Heat Zone.
5) Push LEFT burner control knob down and turn to
START/HI.
6) Push the Crossover Ignition Button several times,
so it clicks each time.
7) Check that the burner is lit by looking through the
matchlight hole above the burner control knob.
 WARNING: If the burner does not light, turn the
LEFT burner control knob to OFF and wait
5 minutes to let the gas clear before you try again
or try to light with a match.
8) After the LEFT burner is lit you can turn on the
RIGHT burner.
Note - Always light the LEFT burner first. The RIGHT
burner ignites from the LEFT burner.

7
EACH HEAT ZONE OPERATES INDEPENDENTLY.
1) Open the lid.
2) Make sure all burner control knobs are turned OFF. (Push
each burner control knob down and turn clockwise.)
 WARNING: The storage space under the cooking
module is intended for storage of nonflammable
items only.
 DANGER
Failure to open lid while igniting the
barbecue, or not waiting 5 minutes to
allow the gas to clear if the barbecue
does not light, may result in an explosive
flame-up which can cause serious bodily
injury or death.
Manual Lighting
MANUAL LIGHTING
1
3
2
1
3
2
Summit 450
Summit 650
Manual Lighting
TO EXTINGUISH
Push down and turn each burner control knob
clockwise to OFF position.Turn gas supply OFF
at the source.

8
3) Turn the tank on by turning the tank valve
counterclockwise.
4) Select heat zone.
5) Put a match in the match holder and strike the match.
6) Insert match holder and lit match through matchlight
hole to ignite LEFT burner.
 WARNING: Do not lean over open barbecue. Keep
your face and body at least one foot away from the
matchlight hole when lighting the barbecue.
7) Push LEFT burner control knob down and turn to
H (high).
9) Observe if LEFT burner has ignited by looking through
matchlight hole.
 WARNING: If LEFT burner fails to ignite turn LEFT
burner control knob to OFF and wait 5 minutes
before attempting to ignite again.
10) After the LEFT burner is lit you can turn on the
RIGHT burner.
Note: Always light the LEFT burner first. The RIGHT
burner ignites from the LEFT burner.
Control panel
matchlight hole
in control panel
Hole in cooking
box assembly
Left burner
tube
TO EXTINGUISH
Push down and turn each burner control knob
clockwise to OFF position.Turn gas supply OFF at the
source.

9
COOKING
 WARNING: Turn your Weber Gas Barbecue OFF
and wait for it to cool before cleaning.
 CAUTION: Do not clean your Flavorizer®Bars
or cooking grates in a self-cleaning oven. For
availability of replacement cooking grates and
Flavorizer Bars contact the Customer Service
Representative in your region using the contact
information sheet provided with your manual.
Outside surfaces - Use a warm soapy water solution
to clean, then rinse with water.
 CAUTION: Do not use oven cleaner, abrasive
cleansers (kitchen cleansers) cleaners that contain
citrus products, or abrasive cleaning pads on
barbecue or cart surfaces.
Slide out Bottom tray - Remove excess grease, then
wash with warm soapy water, then rinse
Flavorizer®Bars and Cooking Grates - Clean with a
suitable brass bristle brush. As needed, remove from grill
and wash with warm soapy water, then rinse with water.
Catch pan - Disposable foil trays are available, or you
can line the catch pan with aluminum foil. To clean the
catch pan, wash with warm soapy water, then rinse.
Thermometer - Wipe with warm soapy water; clean with
plastic scrub ball. Do not put in dishwasher or submerge
in water.
Inside cooking module - Brush any debris off
of burner tubes. DO NOT ENLARGE BURNER PORTS
(OPENINGS). Wash inside of cooking box with warm
soapy water and a water rinse.
Inside Lid - While lid is warm, wipe inside with paper
towel to prevent grease build-up. Flaking built-up grease
resembles paint flakes.
Stainless steel surfaces - Wash with a soft cloth and a
soap and water solution.
Plastic surfaces - Wash with a soft cloth and a soap and
water solution.
Do not use cleaners that contain acid, mineral spirits
or xylene. Rinse well after cleaning.
Plastic work surfaces are not to be used as
cutting boards.
CLEANING
•The gas must be turned off at the LP cylinder when the
Weber Gas Barbecue is not in use.
•When the Weber Gas Barbecue is stored indoors, the
gas supply must be DISCONNECTED and the LP
cylinder stored outdoors in a well-ventilated space.
•LP cylinder must be stored outdoors in a well-ventilated
area out of reach of children. Disconnected LP cylinder
must not be stored in a building, garage or any other
enclosed area.
•When the LP cylinder is not disconnected from the
Weber Gas Barbecue, the appliance and LP tank must
be kept outdoors in a well-ventilated space.
•The Weber Gas Barbecue should be checked for gas
leaks and any obstructions in the burner tubes before
using. (See Sections: “General Maintenance and
Annual Maintenance.”)
•Check that the areas under the control panel and the
slide out bottom tray are free from debris that might
obstruct the flow of combustion or ventilation air.
•The Spider/Insect screens should also be checked
for any obstructions. (Refer to “General Maintenance.”
section)
STORAGE
 WARNING: Do not move the Weber Gas Barbecue
when operating or hot.
NOTE: If barbeque looses heat while cooking refer to
the troubleshooting section of this manual.
You can adjust the LEFT and RIGHT burners as desired.
The control settings High (H), Medium (M), Low (L), or Off
(O) are described in your Weber cookbook. The cookbook
uses these notations to describe the settings of the LEFT
and RIGHT burners.
Note: Cooking conditions may require the adjustment of
the burner controls.
If burners go out during cooking, turn off all burners
and wait 5 minutes before relighting.
 WARNING: Check the bottom tray for grease build-
up before each use. Remove excess grease to
avoid a grease fire in the bottom tray.

10
The Steam-N-Chips Smoker cooks with both Weber
FireSpice Wood Chips and Chunks. For best results with
faster cooking foods like steaks, burgers and chops, etc.,
we recommend using the FireSpice Chips because they
ignite and create smoke faster. For longer cooking foods
such as roasts, chicken and turkeys, etc., we recommend
using FireSpice Chunks because they ignite slowly and
provide smoke for a longer period of time. As you gain
experience in using your Steam-N-Chips Smoker, we
encourage you to experiment with different combinations
of FireSpice Chips and Chunks to find the smoke flavor
that best suits your taste.
To use the Steam-N-Chips Smoker
As a starting point, place a handful of FireSpice Chips or a
few FireSpice Chunks in the bottom of the smoker body(1).
Since the chunks vary in size, place as many as you can in
the smoker allowing room for the water pan(2). As you gain
experience in smoking, increase or decrease the amount of
wood to suit your taste. Fill water pan, place it in the
smoker and close the smoker lid.
Cleaning the Steam-N-Chips Smoker
Before each use, empty the Steam-N-Chips Smoker
of ash to allow proper air flow.
Note - Smoking will leave a "smoke" residue on the
surface of the smoker. This residue cannot be removed
and will not affect the function of the Steam-N-Chips
Smoker. To a lesser degree a "smoke" residue will
accumulate on the inside of your Weber Gas Barbecue.
This residue need not be removed and will not adversely
affect the function of your Weber Gas Barbecue.
Note - Remove the Steam-N-Chips Smoker when it is
not in use. If it is left in the barbecue, grease and
cooking debris can accumulate on the cover.
 DANGER
Do not use any flammable fluid in the
Steam-N-Chips Smoker to ignite the wood.
This will cause serious bodily injury.
Place wood in here
(2)
USING THE STEAM-N-CHIPS SMOKER
Light the barbecue and preheat with all burners on HIGH,
lid down, for 10 minutes or until the thermometer registers
260°C - 288°C. Adjust the burners for cooking; MM or LL
will be your best settings for long duration smoking. Smoke
will start in approximately 10 minutes and last as long as
45 minutes. If you require more smoke flavor, refill the
smoker with FireSpice Chips and/or Chunks and refill the
water pan with water. The Steam-N-Chips Smoker may be
used to enhance any of the meat, poultry and fish recipes
in the gas barbecue cookbook. Cook with the lid down
according to the times indicated in charts or recipes.
Note - After refilling smoker, smoke will take about
10 to 15 minutes to start again.
(1)

11
REFILLING THE LIQUID
PROPANE CYLINDER
We recommend that you refill the LP cylinder before it is
completely empty.
Removal of the LP cylinder
1) Close cylinder valve (turn clockwise).
2) Unscrew regulator coupling by turning
counterclockwise, by hand only.
3) Loosen cylinder lock wing nut and turn cylinder lock up
out of the way.
4) Lift cylinder off. To refill, take LP cylinder to a “Gas
Propane”dealer.
WARNING: We recommend that your LP cylinder be
filled at an authorized LP gas dealer, by a qualified
attendant, who fills the cylinder by weight.
IMPROPER FILLING IS DANGEROUS.
CAUTION: When transporting the LP cylinder make
sure the plastic dust cover is in place over the
valve. This will keep dust and dirt from the
threaded portion of the valve.
(2)
(3)
(1)
IMPORTANT LP
CYLINDER INFORMATION
Failure to follow these DANGER statements exactly may
result in a fire causing death or serious injury.
Your Weber gas grill is equipped with a cylinder
supply system designed for vapor withdrawal.
 WARNING: Only use this grill outdoors in a well-
ventilated area. Do not use in a garage, building,
breezeway or any other enclosed area.
Raises up while filling
then stops when full.
The LP cylinder supplied with your barbecue is
equipped with an OPD (Overfilling Prevention
Device) and a QCC1 or Type 1 (CGA810) cylinder
connection. The cylinder connection is compatible
with the barbecue connection.
This is a secondary device to prevent the overfilling
of your LP cylinder. The proper filling methods for the
filling of your cylinder are by weight or volume, as
described in NFPA 58. Please make sure your filling
station fills your LP cylinder by weight or volume. Ask
your filling station to read purging and filling instructions
on the LP cylinder before attempting to fill.
 WARNING: Do not exchange the LP tank
provided with your barbecue, unless the
exchange LP tank is equipped with an OPD.
Otherwise you will lose the OPD (Overfilling
Prevention Device) feature. If there is not an
LP tank available for exchange equipped with an
OPD, we recommend that you have your LP tank
filled at an authorized LP gas dealer by a
qualified attendant.
CONNECT FILLED LIQUID
PROPANE CYLINDER
WARNING: Make sure that the cylinder valve is
closed. Close by turning clockwise.
We utilize various LP tank manufacturers. Some of the
tanks have differing top collar assembles. (The top collar
is the metal protective ring around the valve.) One series
of tanks mount with the valve facing front. The other tanks
mount with the valve facing away from the fuel scale.
These types of tanks are illustrated below.
 DANGER
 NEVER store a spare LP Cylinder under or near
this barbecue.
 NEVER fill the tank beyond 80% full.

12
Hook the liquid propane cylinder onto the fuel gauge.
Loosen the cylinder lock wing nut. Swing the cylinder lock
down. Tighten the wing nut.
Remove plastic dust cover from the fuel cylinder valve.
Screw the regulator coupling onto the cylinder valve(1),
clockwise, or to the right. Hand tighten only.
Note: This is a new type of connection. It tightens
clockwise and will not allow gas to flow unless the
connection is tight. The connection requires tightening by
hand only.
 WARNING: Do not use a wrench to tighten the
connection. Using a wrench could damage the
regulator coupling and could cause a gas leak.
(1)
SAFE HANDLING TIPS
FOR LIQUID PROPANE
GAS CYLINDERS
•Liquid Propane (LP) gas is a petroleum product as are
gasoline and natural gas. LP gas is a gas at regular
temperatures and pressures. Under moderate pressure,
inside a cylinder, LP gas is a liquid. As the pressure is
released, the liquid readily vaporizes and becomes gas.
•LP gas has an odor similar to natural gas. You should be
aware of this odor.
•LP gas is heavier than air. Leaking LP gas may collect in
low areas and prevent dispersion.
•To fill, take the LP cylinder to an RV center, or look up
"gas-propane" in the phone book for other sources
of LP gas.
 WARNING: We recommend that your LP cylinder be
filled at an authorized LP gas dealer, by a qualified
attendant, who fills the tank by weight. IMPROPER
FILLING IS DANGEROUS.
 WARNING: If you exchange your LP cylinder, make
sure you get a similar tank in return. Your LP
cylinder is equipped with a quick closing coupling
or type 1 valve and an OPD (Overfilling Prevention
Device). Other LP cylinders may not be compatible
with your barbecue connection.
•Air must be removed from a new LP cylinder before the
initial filling. Your LP dealer is equipped to do this.
•The LP cylinder must be installed, transported and
stored in an upright position. LP cylinders should not be
dropped or handled roughly.
•Never store or transport the LP cylinder where
temperatures can reach 125°F (too hot to hold by
hand—for example: do not leave the LP cylinder in a car
on a hot day).
Note - A refill will last about 20 hours of cooking time at
normal use. The fuel scale will indicate the propane
supply so you can refill before running out. You do not
have to run out before you refill.
•Treat “empty”LP cylinders with the same care as when
full. Even when the LP tank is empty of liquid there still
may be gas pressure in the cylinder. Always close the
cylinder valve before disconnecting.
 CAUTION: When transporting the LP cylinder make
sure the plastic dust cover is in place over the
valve. This will keep dust and dirt from the
threaded portion of the valve.
•Do not use a damaged LP cylinder. Dented or rusty
LP cylinders or LP cylinders with a damaged valve may
be hazardous and should be replaced with a new one
immediately.
Liquid Propane (LP) Cylinder(s)
•The joint where the hose connects to the LP cylinder
must be leak tested each time the LP cylinder is
reconnected. For example, test each time the LP
cylinder is refilled.
•Be sure the regulator is mounted with the small vent
hole pointed downward so that it will not collect water.
This vent should be free of dirt, grease, bugs etc.
•The LP cylinder and connections supplied with your
Weber Gas Barbecue have been designed and tested
to meet government, American Gas Association, and
Underwriters Laboratories requirements.

13
Spider/Insect screens
Your Gas Barbecue, as well as any outdoor gas
appliance, is a target for spiders and other insects.
They can nest in the venturi section Venturi(1) of the
burner tubes. This blocks the normal gas flow, and can
cause the gas to flow back out of the air shutter. Figure 5.
This could result in a fire in and around the air shutters,
under the control panel, causing serious damage to
your barbecue.
(1)
We recommend that you inspect the Spider/Insect
screens at least once a year. Also inspect and clean
the Spider/Insect screens if any of the following
symptoms should ever occur.
1. The smell of gas in conjunction with the burner flames
appearing yellow and lazy.
2. Barbecue does not reach temperature.
3. Barbecue heats unevenly.
4. One or more of the burners do not ignite.
 DANGER
Failure to correct these symptoms may
result in a fire which can cause serious
bodily injury or death and cause damage
to property.
GENERAL 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. Refer to Maintenance,
Replacing Main Burners. Brush the spider/inspect
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, call Weber-Stephen Products Customer
Service for replacement parts.
The burner tube air shutter is fitted with a stainless steel
screen(1) to prevent spiders and other insects access to
the burner tubes through the air shutter openings.
Liquid Propane Cylinder requirements
•Replacement LP cylinders supplied by Weber satisfy the
above requirements. Check to be sure other cylinders
have a D.O.T. certification(1), and date tested(2) is within
five years. Your LP gas supplier can do this for you.
If you have questions about spare LP cylinders
contact the Customer Service Representative in your
region using the contact information sheet provided
with your manual.
DOT 4BA240
00/01
(1)
(2)
•All LP tank supply systems must include a collar to
protect the cylinder valve.
•The LP cylinder must be a 20-lb. size (181⁄4inches high,
121⁄4inches in diameter).
•The LP cylinder must be constructed and marked in
accordance with the specifications for LP gas cylinders
of the U.S. Department of Transportation (D.O.T.).

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GENERAL MAINTENANCE
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.
8. Disconnect white(1) and black(2) wire from each igniter.
Summit 450
Summit 650
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.
1) Burner tube
2) Tips occasionally flicker yellow
3) Light blue
4) Dark blue
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.
Look inside each burner with a torch.
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 brass 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.
(2)
(3)
(4)
(1)
(1) (2)

15
10. Slide the burner assembly from each Heat Zone.
The left and right burners are connected by the
Crossover tube.
(1)
9. Pull the manifold(1) out of the burners.
GENERAL MAINTENANCE
Figure 13
Pull out of here
Crossover tube
Summit 450
Summit 650

16
GENERAL MAINTENANCE
11. Lift and twist the burner assembly slightly to separate
the crossover tube(1) from the burners. Remove the
burners from the cooking box.
Separate here
(1)
12. To reinstall the burners, reverse steps 3 through 11.
 CAUTION: The burner openings must be positioned
properly over the valve orifices. Figure 15 (a).
Check proper assembly before fastening manifold in
place. Figure 15 (b).
Figure 15
(a)
(b)
Valve
Burner Orifice
Crossover®Ignition System Operations
If the Crossover Ignition System fails to ignite the Left
burner, light the Left burner with a match. If the Left
burner lights with a match, then check the Crossover
Ignition System.
•Check that both the white(1) and black(2) ignition wires
are attached properly.
•Check that the Crossover Ignition button pushes the
igniter (button) down, and returns to the up position.
•Check to see if the igniter is loose in the frame.
Tighten if necessary; See Step “Install igniter”for
correct procedure.
If the Crossover Ignition System still fails to light, Contact
the Customer Service Representative in your region using
the contact information sheet provided with your manual.
(1) (2)

17
Problem
Burners burn with a yellow or orange flame,
in conjunction with the smell of gas.
Burner does not light, or flame is low in
HIGH position.
Experiencing flare-ups:
 CAUTION: Do not line the bottom tray
with aluminum foil.
Burner flame pattern is erratic. Flame is
low when burner is on HIGH. Flames do
not run the whole length of the burner tube.
Inside of lid appears to be “peeling.”
(Resembles paint peeling.)
Barbecue seems to lose heat when
cooking in cold weather temperatures
50°F or colder. (The liquid propane in the
cylinder turns to vapor too slowly to
supply the burners with gas. This is
due to the air temperature cooling the
LP cylinder which slows the
vaporization process.)
Check
Inspect Spider/Insect Screens
for possible obstructions.
(Blockage of holes.)
Is LP fuel low or empty?
Is fuel hose bent or kinked?
Does the Left burner light
with a match?
Are you preheating barbecue
in the prescribed manner?
Are the cooking grates and
Flavorizer Bars heavily coated
with burned-on grease?
Is the bottom tray “dirty”and not
allowing grease to flow into catch pan?
Are burners clean?
The lid is porcelain-on-steel, not
paint. It cannot “peel.”What you
are seeing is baked on grease that
has turned to carbon and is flaking
off. THIS IS NOT A DEFECT.
Is there frost/ice on the outside
of the LP cylinder?
Cure
Clean Spider/Insect Screens and
inspect burners. (See Maintenance
Section.)
Refill LP tank.
Straighten fuel hose.
If you can light the Left burner with
a match, then check the Crossover
Ignition System.
All burners on high for 10 to 15
minutes for preheating.
Clean thoroughly. (See Cleaning
Section.)
Clean bottom tray.
Clean burners. (See Maintenance
Section.)
Clean thoroughly. (See Cleaning
Section.)
Turn off burner control knobs and
the LP cylinder. Replace with a
spare LP cylinder and resume
cooking.
 WARNING: The spare or
disconnected LP cylinder
must be stored outdoors in a
well ventilated area out of the
reach of children. The spare or
disconnected LP cylinder
must never be stored under
or near your Weber Gas
Barbecue.
TROUBLESHOOTING

©2000 Weber-Stephen Products Co., 200 East Danels Road, Palatine, IL 60067-6266.U.S.A.
Printed in the U.S.A.
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