Weber Summit 425 LP, Summit 450 LP Operating Manual

T M

S U M M IT

LP Gas Barbecues

Read before assembly

425 & 450

Operating Guide

Summit 425 LP
Serial Number

WARNING:F o l l ow all leak ch e ck pro c e d u r e s
carefully in this manual prior to barbecue
operation.Do this even if barbecue was
dealer assembled.

NOTICE TO INSTALLER:These instructions
must be left with the owner and the owner
should keep them for future use.

THIS GAS APPLIANCE IS DESIGNED FOR
OUTDOOR USE ONLY.

WARNING:Do not try to light this appliance
without reading "Lighting" instructions
section of this manual.

Summit 450 LP

Serial Number

FOR YOUR SAFETY

1.Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.

2.An LP tank not connected for use shall
not be stored in the vicinity of this or
any other appliance.

FOR YOUR SAFETY
If you smell gas:

1.Shut off gas to the appliance.

2.Extinguish any open flame.

3.Open lid.

4.If odor continues,immediately call yo u r
gas supplier or your fire depart m e n t .

97672 4/97

WARNINGS

DANGER

Failure to fo l l ow the Dange rs ,Warnings and Cautions contained in this Owner’s Manual may

result in serious bodily injury or death, or a fire or an explosion causing damage to pro p e rt y.

■ Do not store a spare or disconnected LP tank 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 nonuse, the We b e r
Gas Barbecue should be checked for gas leaks and
burner obstructions before using. 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.

■ 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.

■ Should the burners go out during 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.

■ L P gas is not natural gas. The conversion or attempted
use of natural gas in an LP unit or LPgas 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.

■ This barbecue is for residential use only.

LP 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 LPtank may be hazardous and
should be checked by your liquid propane supplier. Do

not use an LP tank with a damaged valve.

■ Although your LPtank may appear to be empty, gas
may still be present, and the tank should be

transported and stored accordingly.

■ If you see, smell or hear the hiss of escaping gas from
the LP t a n k :

1 . Get away from LPt a n k .
2 . Do not attempt to correct the problem yourself.
3 . Call your fire department.

2

TABLE OF CONTENTS

Warnings 2
Warranty 4
A Word of Thanks 4
Standards and Codes Information 5

Operating Area 5
Storage 5

*REFER TO YOUR STEP-BY-STEP SECTION AT

THIS TIME

Lighting 6

Crossover Ignition System 6
To Extinguish 6

Manual Lighting 7

To Extinguish 7

Cooking 8
Storage 8
Cleaning 8

Steam-N-Chips Smoker 9
Maintenance 10-12

Spider Stopper Guards 10
Inspection and Cleaning of the

Spider Stopper Guards 10
Main Burner Flame Pattern 11
Main Burner Cleaning Procedure 11
Replacing the Main Burners 11
Crossover Ignition System Operations 13

Troubleshooting 14
Exploded Views and Replacement

Parts Lists 16-19

Summit 425 LP 16-17
Summit 450 LP 18-19

Patents and Trademarks 20

3

Weber-Stephen Products Co. (Weber) hereby warrants to the ORIGINAL PURCHASER of this Weber Gas Barbecue

WARRANTY

that it will be free of defects in material and workmanship from the date of purchase as follows:

Aluminum Castings, 25 years,
Cooking Grates and Flavorizer Bars, 7 years,
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

SLIP OR INVOICE.
This Limited Warranty shall be limited to the repair or replacement of parts which 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 Weber-Stephen Products Co. Customer Service Center. 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, acid rain,
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 states 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 states 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 We b e r.

This Warranty applies only to products sold at retail.

A WORD OF THANKS

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.

Weber-Stephen Products Company
Customer Service Center
200 E. Daniels Road
Palatine, IL 60067-6266
(888) 33-SUMMIT
(888-337-8664)

4

STANDARDS AND CODES INFORMATION

Y our 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 you 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 operating and maintaining 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.

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).

Operating area

WARNING: Only use this barbecue outdoors in a well
ventilated area. Do not use in a garage, building,
breezeway or any other enclosed area.

■ Never use your Weber Gas Barbecue under an
unprotected combustible roof or overhang.

■ Your Weber Gas Barbecue is not intended to be
installed in or on recreational vehicles and/or boats.

■ Keep this grill away from combustible materials when
in use at a minimum of 24 inches of the top, bottom,
back or sides.

■ The entire cooking box gets hot when in use. Do not
leave unattended.

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

■ Keep the cooking area clear of flammable vapors and
liquids, such as gasoline, alcohol, etc., and
combustible materials.

■ Never store an extra (spare) LP tank under or near
the Weber Gas Barbecue.

Storage

■ The gas must be turned off at the LP tank 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
tank stored outdoors in a well-ventilated space.

■ LP tanks must be stored outdoors in a well-ventilated
area out of reach of children. Disconnected LP tanks

must not be stored in a building, garage or any other
enclosed area.

■ When the LP tank 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 Maintenance Section)

■ Check that the areas under the control panel and the
bottom tray are free from debris that might obstruct
the flow of combustion or ventilation air.

■ The Spider Stopper Guards should also be checked
for any obstructions. Refer to Maintenance Section.

REFER TO YOUR STEP-BY­STEP GUIDE AT THIS TIME
FOR BARBECUE ASSEMBLY

WARNING: Make sure your barbecue is set up
properly and leak checked before attempting
to operate.

5

EACH HEAT ZONE OPERATES INDEPENDENTLY.

LIGHTING

Summary lighting instructions are on the control panel.

High Medium Low Off

Crossover Ignition System

DA N G E R

Failure to open lid while igniting the
b a r b e c u e, or not waiting 5 minutes to allow
the gas to clear if the barbecue does not light,
m ay result in an explosive flame-up which
can cause serious bodily injury or death.

Note - The Crossover Ignition System ignites the Left
burner of each heat zone 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. Contact your dealer.

WARNING:The storage space under the cooking
module is intended for storage of nonflammable
items only.

Crossover Ignition System

1) Open the lid. Figure 1.

2) Check that the fuel scale reads more than “E”.
Note - E = empty; F = full.

3) Make sure all burner control knobs are OFF. (Push
each burner control knob down and turn clockwise.)

WARNING: The b urner control knobs must be in the
OFF position before turning on the LP tank valve. If
they are not in the OFF position, when you turn on
the LP tank valve,the excess flow control will
activate, limiting the flow of gas from the LP tank. If
this should occur, turn OFF the LP tank valve and
burner control knobs and start over.

DANGER

When the excess flow control is activa t e d ,
a small amount of gas is still flowing to the
bu r n e rs . After turning OFF the tank and
burner control knobs, wait at least 5 minu t e s
for the gas to clear before attempting to light
the barbecue. Failure to do so may result in
an explosive flame-up which can cause
serious bodily injury or death.

4) Turn the tank on by turning the tank valve
counterclockwise.

WA R N I N G : Do not lean over open barbecue. Ke e p
your face and body at least one foot aw ay from the
m a t chlight hole when lighting the barbecue.

5) Select Heat Zone.

6) Push LEFT burner control knob down and turn to
START/HI.

7) Push the Crossover Ignition Button several times, so
it clicks each time.

8) 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.

9) 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.

Figure 1

TO EXTINGUISH

Turn gas supply OFF at the source, then push down
and turn each burner control knob clockwise to OFF.

6

EACH HEAT ZONE OPERATES INDEPENDENTLY.

MANUAL LIGHTING

High Medium Low Off

DA N G E R

Failure to open lid while igniting the
b a r b e c u e, or not waiting 5 minutes to allow
the gas to clear if the barbecue does not light,
m ay result in an explosive flame-up which
can cause serious bodily injury or death.

1) Open the lid. Figure 2.

2) Check that fuel scale reads more than “E”.

Note - E = empty; F = full.

3) Make sure all burner control knobs are turned OFF. (Push
each burner control knob down and turn clockwise.)

WARNING: The b urner control knobs must be in the
OFF position before turning on the LP tank valve. If
they are not in the OFF position, when you turn on
the LP tank valve,the excess flow control will activa t e,
limiting the flow of gas from the LP tank. If this should
occur,turn OFF the LP tank valve and burner control
knobs and start over.

WARNING:The storage space under the cooking
module is intended for storage of nonflammable
items only.

DANGER

When the excess flow control is activated, a
small amount of gas is still flowing to the
burners. After turning OFF the tank and burner
control knobs,wait at least 5 minutes for the gas
to clear before attempting to light the barbecue.
Failure to do so may result in an explosive
flame-up which can cause serious bodily injury
or death.

4) Turn the tank on by turning the tank valve
counterclockwise.

5) Select heat zone.

6) Put a match in the match holder and strike the match.

7) Insert match holder and lit match through matchlight
hole to ignite LEFT burner. Figure 3.

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.

8) Push LEFT burner control knob down and turn to
H (high).

matchlight hole
in control panel

Hole in cooking
box assembly

Figure 2

Manual Lighting

Control panel

Left burner
tube

Figure 3

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.

TO EXTINGUISH

Turn gas supply OFF at the source, then push down
and turn each burner control knob clockwise to OFF.

7

The Weber Gas Barbecue should not be moved when

COOKING

CAUTION: Turn your Weber Gas Barbecue OFF and
wait for it to cool before cleaning.

CAUTION: Do not clean your Flavorizer Bars or
cooking grills in a self-cleaning oven. Replacement
cooking grates and Flavorizer Bars are available
through your retailer or the Weber-Stephen Customer
Service Center.

Outside surfaces - Use a warm soapy water solution.
C AU T I O N : Do not use oven cl e a n e r, abrasive cl e a n s e rs

( k i t chen cl e a n s e rs) cl e a n e rs that contain citrus
p roducts or abrasive cleaning pads on barbecue or
c a rt surfaces.

Bottom tray - Remove excess grease and then wash with

warm soapy water.
F l avo r i zer Bars and Cooking Grates - Clean with a

suitable brass bristle brush. As needed, remove from grill
and wash with warm soapy 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.

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 burners
tubes. DO NOT ENLARGE BURNER PORTS (OPENINGS).
Wash inside of cooking box with warm soapy water.

Inside lid - While lid is warm, wipe inside with paper
towel to prevent flaking due to grease build-up.

Stainless steel surfaces - Wash with a soft cloth and
soap and water solution.

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 cylinders must be stored outdoors in a well­ventilated area out of 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.

■ The Weber Gas Barbecue should be checked for gas
leaks and any obstructions in the burner tubes before
using. (See Maintenance Section.)

■ Check that the areas under the control panel and the
bottom tray are free from debris that might obstruct
the flow of combustion or ventilation air.

STORAGE

operating or hot.

High Medium Low Off

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.

CAUTION: Check the bottom tray for grease build-up
before each use. Remove excess grease to avoid a
grease fire in the bottom tray.

8

The Steam-N-Chips Smoker cooks with both We b e r

USING THE STEAM-N-CHIPS SMOKER

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.
Figure 4. Since the chunks vary in size, place as many as
you can in the smoker allowing room for the water pan. A s
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.

Do not use any flammable fluid in the
Steam-N-Chips Smoker to ignite the wo o d .
This will cause serious bodily injury.

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
s u r face of the smoke r.This residue cannot be remove d
and will not affect the function of the Steam-N-Chips
S m o ke r.To a lesser degree a "smoke" residue will
a c c u mulate on the inside of your Weber Gas Barbecue.
This residue need not be removed and will not adve r s e l y
a f fect the function of your Weber Gas Barbecue.

DA N G E R

Water Pan

Steam-N-Chips Body

Place wood in here

Figure 4

Light the barbecue and preheat with all burners on HIGH,
lid down, for 10 minutes or until the thermometer registers
500°F - 550°F. 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 smoke r, smoke will take about 10 to
15 minutes to start again.

9

Spider Stopper Guards

MAINTENANCE

Inspection and Cleaning of the Spider
Stopper Guards

To inspect the Spider Stopper Guards, remove the control
panel and look to see if they have dust or dirt on their
outside surfaces. If they are dirty, brush off the outside
surface of the Spider Stopper Guards with a soft bristle
brush (an old toothbrush for example). Check that there
are no gaps in the Spider Stopper Guards’ seams or in
the fit around the burners or valves.

The Spider Stopper Guard is factory installed. It fits
tightly around the air shutter section of the burner tube
and the valve, thereby preventing spiders and other
insects access to the burner tubes through the air
shutter openings. Figure 6.

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 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.

Venturi

Air shutter

Venturi fin

Figure 5

We recommend that you inspect the Spider Stopper
G u a rds at least once a ye a r. Also inspect and clean the
Spider Stopper Guards if any of the fo l l ow i n g
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
i n j u ry or death and cause damage to pro p e rt y.

Weber Spider
Stopper Guard

Figure 6

10

MAINTENANCE

Main Burner Flame Pa t t e r n

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.

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.

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.

C AU T I O N: Do not enlarge the burner ports when cl e a n i n g .

Figure 7

Burner inside
cooking box

Flames

Tips occasionally yellowish

Light blue

Dark blue

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 8

Figure 9

Figure 10

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

White wire

Black wire

Figure 11

11

9. Unlatch the Spider Stopper Guards and remove.

MAINTENANCE

Figure 12.

Figure 12

10. Pull the manifold out of the burners. Figure 13.

11. Slide the burner assembly from each Heat Zone. The
left and right burners are connected by the Crossover
tube. Figure 14 (a).

Pull out of here

Crossover tube

Manifold

Figure 14

Figure 13

12

MAINTENANCE

12. Lift and twist the burner assembly slightly to separate
the crossover tube from the burners. Remove the

burners from the cooking box. Figure 15.

Separate here

Crossover tube

Figure 15

14. Reinstall the Spider Stopper Guards. Slightly rotate
the Spider Stopper Guards so that the seams are in
line with the Venturi fins. There should be no gaps in
the seams or in the fit around the burners and valves.
Figure 17.

Check fit
around valve

Venturi fin

13. To reinstall the burners, reverse steps 3 through 12.

CAUTION: The burner openings must be positioned
properly over the valve orifices. Figure 16 (a).

Check proper assembly before fastening manifold in
place. Figure 16 (b).

(a)

Valve

Burner

Orifice

(b)

Check fit around burner

Figure 17

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 and black ignition wires are
attached properly. Figure 18.

■ 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
Weber-Stephen Customer Service.

Figure 16

White wire

Black wire

Figure 18

13

Problem

TROUBLESHOOTING

B u r n e rs burn with a ye l l ow or orange flame,
in conjunction with the smell of gas.

Check

Inspect Spider Stopper Guards for
possible obstructions. (Blockage
of holes.)

Cure

Clean Spider Stopper Guards. (See
Maintenance Section.)

Burners do not light. -or­Burners have a small flickering flame in
the HIGH position. -or­Barbecue temperature only reaches 250˚
to 300˚ degrees in the HIGH position.

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

Experiencing flare-ups:

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

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?

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
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.)

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.

Fuel scale shows that there is gas in the
LP tank, but tank is empty.

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

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

Are burners clean?

Check adjustment of fuel scale.

Clean bottom tray.

Clean burners. (See Maintenance
Section.)

Fuel scale must be adjusted with
an empty tank.

14

15

EXPLODED VIEW FOR THE SUMMIT 425 LP

16

REPLACEMENT PARTS LIST FOR THE SUMMIT 425 LP

1 Lid
2 Thermometer
3 Steam-N-Chips smoker
4 Stainless steel work surface (2)
5 Condiment holder (2)
6 Cooking box
7 Crossover tube (2)
8 Left burner (2)

9 Right burner (2)
10 Burner control knobs (4)
11 Igniter (2)
12 Igniter lock nut (2)
13 Igniter wire (white) (2)
14 Igniter wire (black) (2)
15 Gas catcher ignition chamber (2)
16 Spider stopper guard (4)
17 Manifold assembly
18 Manifold mounting clips (2)
19 Control panel
20 Igniter button (2)
21 Front panel
22 Tool holder (4)
23 Caster frame
24 1/4-20 x 3 1/2 inch bolt (4)
25 Match holder and chain
26 Bottom tray
27 Catch pan holder
28 Catch pan
29 Drip pan (2)
30 Caster (2)
31 Bottom connector (2)
32 Stainless steel bottom shelf
33 Warm-up rack
34 Cooking grates (2)
35 Flavorizer bar / cooking grate holder (2)
36 Flavorizer bar (7)
37 Hair pin cotter (2)
38 Clevis pin (2)
39 Corrugated gas line
40 Hose adapter
41 Top left frame
42 Top right frame
43 Back panel
44 Nylon washer (8)
45 1/4-20 x 1/2 inch bolt (4)
46 Wheel frame
47 1/4-20 wing nuts (2)
48 Wheel hubcap (2)
49 Wheel (2)
50 Cylinder glides (2)
51 Glide axle
52 Glide hubcaps (2)
53 Cylinder panel
54 Fuel scale assembly

55 1/4-20 x 1 3/4 inch bolt
56 1/4-20 hex nut
57 Regulator mounting bracket
58 Hose / regulator
59 LP tank
60 Filler adapter

All items are single quantities unless otherwise specified.
Parts can be ordered directly from Weber-Stephen

Products Company by phone or mail.

Note - Do not return parts to Weber-Stephen Products Co.
without first contacting the Customer Service Center by
phone or mail.R e t u rning the part may not be necessary.

While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance. Have
your owner’s manual and serial number of the barbecue
available for reference.

Weber-Stephen Products Company
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
(888) 33-SUMMIT
(888-337-8664)

WARNING:
Use only Weber factory authorized part s .T h e
use of any part that is not factory authorized can
be dange ro u s .This will also void your warranty.

17

EXPLODED VIEW FOR THE SUMMIT 450 LP

18

REPLACEMENT PARTS LIST FOR THE SUMMIT 450 LP

1 Lid

2 Thermometer

3 Cooking grate (2)

4 Flavorizer bar / cooking grate (2)

5 Flavorizer bar (7)

6 Stainless steel work surface (2)

7 Condiment holder (2)

8 Cooking box

9 Crossover tube (2)
10 Left burner (2)
11 Right burner (2)
12 Burner control knob (4)
13 Igniter (2)
14 Igniter lock nut (2)
15 Igniter wire (black) (2)
16 Igniter wire (white) (2)
17 Gas catcher ignition chamber (2)
18 Spider stopper guard (4)
19 Manifold assembly
20 Manifold mounting clips (2)
21 Control panel
22 Igniter button (2)
23 Front panel
24 Rear panel (2)
25 Left panel
26 Match holder and chain
27 Caster frame
28 1/4-20 x 3 1/2 inch bolt (4)
29 Bottom connector (3)
30 Tool holder (4)
31 Caster (2)
32 Bottom tray
33 Catch pan holder
34 Catch pan
35 Drip pan (2)
36 Left front door
37 Right front door
38 Accessory rack
39 Warm-up basket
40 Steam-N-Chips smoker
41 Hair pin cotter (2)
42 Clevis pin (2)
43 Regulator mounting bracket
44 Corrugated gas line
45 Hose adapter
46 Top left frame
47 Top right frame
48 Back panel
49 Nylon washer (8)
50 1/4-20 x 1/2 inch bolt (4)
51 1/4-20 wing nut
52 Wheel hubcap (2)
53 Wheel (2)
54 Cylinder glide (2)
55 Glide axle
56 Glide hubcap (2)
57 Cylinder panel

58 Right panel
59 Tank scale assembly
60 1/4-20 x 1 3/4 inch bolt
61 1/4-20 keps nut
62 Hose / regulator
63 LP tank
64 Filler adapter
65 Wheel frame

All items are single quantities unless otherwise specified.
Parts can be ordered directly from Weber-Stephen

Products Company by phone or mail.

Note - Do not return parts to Weber-Stephen Products Co.
without first contacting the Customer Service Center by
phone or mail. R e t u rning the part may not be necessary.

While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance. Have
your owner’s manual and serial number of the barbecue
available for reference.

Weber-Stephen Products Company
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
(888) 33-SUMMIT
(888-337-8664)

WARNING:
Use only Weber factory authorized part s .T h e
use of any part that is not factory authorized can
be dange ro u s .This will also void your warranty.

19

PATENTS & TRADEMARKS

© 1997 Weber-Stephen Products Co. Weber, the silhouette, Flavorizer and Crossover are registered
U.S. trademarks; Summit, Grill Cozy, Gas Catcher, Spider Stopper, and Steam-N-Chips, are
trademarks, all of Weber-Stephen Products Co., 200 East Daniels Road, Palatine, IL 60067-6266.
U.S.A.

Summit Series Gas Barbecues are covered by U.S. Patent Nos. 4,677,964; 4,727,853; 4,777,927;
4,829,978; 4,860,724; 4,941,817; and 4,966,125; and, Canada patent Nos. 1,283,586 and 1,300,995.
Printed in the U.S.A.