Bosch NGM8657UC User guide

Brand: Bosch

Model: NGM8657UC

Category: Fireplaces

Type: User guide

This manual is also suitable for

NGM8057UC

Use and Care Manual

Gas Cooktop

NGM8057UC NGM8657UC

Table of Contents

Use and care manual

9 Safety Definitions ..................................................... 3

IMPORTANT SAFETY INSTRUCTIONS ........................ 4

Gas Appliance Safety .......................................................... 4

High Altitude Installation ..................................................... 5

Fire Safety .............................................................................. 5

Gas Safety ............................................................................. 6

Burn Prevention .................................................................... 6

Child Safety ........................................................................... 6

Cleaning Safety ..................................................................... 6

Cookware Safety .................................................................. 7

Proper Installation and Maintenance ................................ 7

Proposition 65Warning ...................................................... 7

Causes of Damage ........................................................ 8

Environmental protection ............................................. 8

Saving energy ....................................................................... 8

Getting Started ............................................................... 9

Before Using the Appliance for the First Time ............... 9

Gas cooktop .......................................................................... 9

Control Knobs .................................................................... 10

Sealed Burners .................................................................. 11

Burner Cap and Burner Base Placement ..................... 11

Accessories ........................................................................ 11

Operation ..................................................................... 12

In Case of a Power Failure .............................................. 12

Electronic Ignition .............................................................. 12

Flame Failure Safety System .......................................... 12

Typical Flame Characteristics ......................................... 12

Turning off a burner .......................................................... 12

General Notes .................................................................... 13

Getting the Most Out of Your Appliance ...................... 13

Cleaning and Maintenance ......................................... 18

Cleaning .............................................................................. 18

Cleaning Guidelines ......................................................... 18

Maintenance ....................................................................... 19

Service ......................................................................... 20

Before Calling for Service ............................................... 20

How to Obtain Warranty Service .................................... 20

STATEMENT OF LIMITED PRODUCT WARRANTY .. 21

What this Warranty Covers & Who it Applies to ......... 21

How Long the Warranty Lasts ........................................ 21

Repair/Replace as Your Exclusive Remedy ................ 21

Out of Warranty Product .................................................. 21

Warranty Exclusions ......................................................... 21

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9 Safety Definitions

Safety Definitions

9 WARNING

This indicates that death or serious injuries may

occur as a result of non-observance of this warning.

9 CAUTION

This indicates that minor or moderate injuries may

occur as a result of non-observance of this warning.

NOTICE: This indicates that damage to the appliance or

property may occur as a result of non-compliance with

this advisory.

Note: This alerts you to important information and/or

tips.

9 IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE INSTRUCTIONS

IMPORTANT SAFET Y I NS T RU CT I ONS READ AND SAVE THESE INSTRUCTIONS

Gas Appliance Safety

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9 IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE INSTRUCTIONS

IMPORTANT: SAVE THESE INSTRUCTIONS FOR THE

LOCAL ELECTRICAL INSPECTOR’S USE.

INSTALLER: LEAVE THESE INSTRUCTIONS WITH THE

UNIT FOR THE OWNER.

OWNER: PLEASE RETAIN THESE INSTRUCTIONS FOR

FUTURE REFERENCE.

WARNING

When properly cared for, your new appliance has been

designed to be safe and reliable. Read all instructions

carefully before use. These precautions will reduce the

risk of burns, electric shock, fire and injury to persons.

When using kitchen appliances, basic safety precautions

must be followed including those in the following pages.

High Altitude Installation

This appliance has been tested for operation up to an

altitude of 10,100 ft (3,078 m) elevation above sea level.

If desired, for altitudes above 2,000 ft (610 m) elevation

above sea level, adjustments may be made. Burners

should be checked at the lowest setting, if the flame is

not stable the simmer should be increased until the

flame is stable. This can be done by adjusting the

bypass screw in the valve. If flame performance is

satisfactory, adjustment will not be required. It is required

that a Certified Professional make the high altitude

adjustments during installation.

Fire Safety

Save these instructions.

Set the burner control so that the flame does not extend

beyond the bottom of the pan.

Do not allow aluminum foil, plastic, paper or cloth to

come in contact with a hot surface element, burner or

grate. Do not allow pans to boil dry.

If the cooktop is near a window, forced air vent or fan, be

certain that flammable materials such as window

coverings do not blow over or near the burners or

elements. They could catch on fire.

Always have a working smoke detector near the kitchen.

Never leave the cooktop unattended when in use.

Boilovers cause smoking and greasy spillovers may

ignite.

WARNING

TO REDUCE THE RISK OF A GREASE FIRE:

Never leave surface units unattended at high settings.

Boilovers cause smoking and greasy spillovers that

may ignite. Heat oils slowly on low or medium settings.

Always turn hood ON when cooking at high heat or

when flambéing food (i.e. Crêpes Suzette, Cherries

Jubilee, Peppercorn Beef Flambé).

Clean ventilating fans frequently. Grease should not be

allowed to accumulate on fan or filter.

Use proper pan size. Always use cookware

appropriate for the size of the surface element.

In the event that personal clothing or hair catches fire,

drop and roll immediately to extinguish flames.

Smother flames from food fires other than grease fires

with baking soda. Never use water on cooking fires.

Take care that drafts like those from fans or forced air

vents do not push the flames so that they extend beyond

the edges of the pan.

Have an appropriate fire extinguisher available, nearby,

highly visible and easily accessible near the appliance.

WARNING

TO REDUCE THE RISK OF INJURY TO PERSONS IN

THE EVENT OF A GREASE FIRE, OBSERVE THE

FOLLOWING:

SMOTHER FLAMES with a close-fitting lid, cookie

sheet, or metal tray, then turn off the burner. BE

CAREFUL TO PREVENT BURNS. If the flames do not

go out immediately, EVACUATE AND CALL THE FIRE

DEPARTMENT.

NEVER PICK UP A FLAMING PAN – You may be

burned.

DO NOT USE WATER, including wet dishcloths or

towels – a violent steam explosion will result.

Use an extinguisher ONLY if:

- You know you have a Class ABC extinguisher, and

you already know how to operate it.

- The fire is small and contained in the area where it

started.

- The fire department is being called.

- You can fight the fire with your back to an exit.

During a power failure, only the cooktop burners can be

lit manually.

Whenever possible, do not operate the ventilation system

during a cooktop fire. However, do not reach through fire

to turn it off.

9 IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE INSTRUCTIONS

Gas Safety

To prevent carbon monoxide build-up, do not block

appliance air vents.

Have the installer show you where the gas shut-off valve

is located.

For proper burner performance, keep igniters clean and

dry.

If a burner goes out and gas escapes, open windows

and doors. Wait until gas dissipates before using the

appliance.

WARNING

All igniters spark when any single burner is turned on. Do

not touch any of the burners when the cooktop is in use.

If you smell gas, your installer has not done a proper job

of checking for leaks. If the connections are not perfectly

tight, you can have a small leak and, therefore, a faint

smell. If you smell gas, immediately shut off the unit and

contact an authorized service technician to diagnose the

issue. See Warning, ~ "Gas Appliance Safety"

on page 4

WARNING

To prevent flare-ups all grates must be properly

positioned on the cooktop whenever the cooktop is in

use. Each of the feet must be placed into the

corresponding dimples in the cooktop. Do not use a

grate if the rubber feet are missing or damaged.

Keep the igniter ports clean for proper lighting

performance of the burners. It is necessary to clean

these when there is a boilover or when the burner does

not light even though the electronic igniters click.

WARNING

To prevent flare-ups do not use the cooktop without all

burner caps and all burner grates properly positioned.

WARNING

Do not clean or touch any of the burners when an extra

low burner (if equipped) is in use. When the extra low

burner automatically reignites the ignitor at the burner will

spark.

WARNING

Use this appliance only for its intended use as described

in this manual. NEVER use this appliance as a space

heater to heat or warm the room. Doing so may result in

carbon monoxide poisoning and overheating the

appliance. Never use the appliance for storage.

Burn Prevention

DO NOT TOUCH SURFACE UNITS OR AREAS NEAR

UNITS - Surface units may be hot even though they are

dark in color. Areas near surface units may become hot

enough to cause burns. During and after use, do not

touch, or let clothing, potholders, or other flammable

materials contact surface units or areas near units until

they have had sufficient time to cool. Among these areas

are the cooktop and areas facing the cooktop.

Do not heat or warm unopened food containers. Build-up

of pressure may cause the container to burst and cause

injury.

Always turn hood ON when cooking at high heat or when

flambéing food (i.e. Crêpes Suzette, Cherries Jubilee,

Peppercorn Beef Flambe).

Use high heat settings on the cooktop only when

necessary. To avoid bubbling and splattering, heat oil

slowly, on no more than a low-medium setting. Hot oil is

capable of causing extreme burns and injury.

Never move a pan of hot oil, especially a deep fat fryer.

Wait until it is cool.

Secure all loose garments, etc., before beginning. Tie

long hair so that it does not hang loose, and do not wear

loose-fitting clothing or hanging garments, such as ties,

scarves, jewelry, or dangling sleeves.

Child Safety

When children become old enough to use the appliance,

it is the responsibility of the parents or legal guardians to

ensure that they are instructed in safe practices by

qualified persons.

Do not allow anyone to climb, stand, lean, sit, or hang on

any part of an appliance, especially a door, warming

drawer, or storage drawer. This can damage the

appliance, and the unit may tip over, potentially causing

severe injury.

Do not allow children to use this appliance unless closely

supervised by an adult. Children and pets should not be

left alone or unattended in the area where the appliance

is in use. They should never be allowed to play in its

vicinity, whether or not the appliance is in use.

CAUTION

Items of interest to children should not be stored in an

appliance, in cabinets above an appliance or on the

backsplash. Children climbing on an appliance to reach

items could be seriously injured.

Cleaning Safety

IMPORTANT SAFETY NOTICE: The California Safe

Drinking Water and Toxic Enforcement Act requires the

Governor of California to publish a list of substances

known to the state to cause cancer, birth defects or other

reproductive harm, and requires businesses to warn

customers of potential exposure to such substances. The

burning of gas cooking fuel and the elimination of soil

during self-cleaning can generate some by-products

9 IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE INSTRUCTIONS

which are on the list. To minimize exposure to these

substances, always operate this unit according to the

instructions contained in this booklet and provide good

ventilation.

WARNING

The burning of gas cooking fuel can create small

amounts of Carbon Monoxide, Benzene, Formaldehyde

and Soot. To minimize exposure to these substances the

burners should be adjusted by a certified installer or

agency to ensure proper combustion. Ensure proper

ventilation with an open window or use a ventilation fan

or hood when cooking with gas. Always operate the unit

according to the instructions in this manual.

After a spill or boilover, turn off the burner and allow the

cooktop to cool. Clean around the burner and burner

ports. After cleaning, check for proper operation.

Do not clean the appliance while it is still hot. Some

cleaners produce noxious fumes when applied to a hot

surface. Wet clothes and sponges can cause burns from

steam.

WARNING

Do not remove grommets or white rings as they will

require Customer Service to refit and the cooktop must

not be used without all parts fitted correctly.

Cookware Safety

Hold the handle of the pan when stirring or turning food.

This helps prevent spills and movement of the pan.

Use Proper Pan Size.

The use of undersized cookware will expose a portion of

the heating element or burner to direct contact and may

result in ignition of clothing. Select cookware having flat

bottoms large enough to cover the surface heating unit.

This appliance is equipped with one or more surface

units of different sizes. Proper relationship of cookware to

heating element or burner will also improve efficiency.

Inspect your cookware for damage or excessive wear

before using it.

Always position handles of utensils inward so they do not

extend over adjacent work areas, burners, or the edge of

the cooktop. This reduces the risk of fires, spills and

burns.

Adjust burner flame size so that it does not extend

beyond the edge of the cookware. Proper relationship of

cookware to burner flame reduces safety risks.

Use only certain types of glass, heatproof glass, ceramic,

earthenware, or other glazed utensils that are suitable for

cooktop use.

Proper Installation and Maintenance

WARNING

Disconnect electrical and gas supply before servicing.

Have the installer show you the location of the circuit

breaker or fuse. Mark it for easy reference.

This appliance must be properly installed and grounded

by a qualified technician. Connect only to properly

grounded outlet. Refer to Installation Instructions for

details.

This appliance is intended for normal family household

use only. It is not approved for outdoor use. See the

Statement of Limited Product Warranty. If you have any

questions, contact the manufacturer.

Do not store or use corrosive chemicals, vapors,

flammables or nonfood products in or near this

appliance. It is specifically designed for use when

heating or cooking food. The use of corrosive chemicals

in heating or cleaning will damage the appliance and

could result in injury.

WARNING

Failure to operate knobs properly may result in personal

injury and damage to the appliance.

This appliance is not intended for operation with an

external time switch or external remote control.

Do not operate this appliance if it is not working properly,

or if it has been damaged. Contact an authorized

servicer.

Do not repair or replace any part of the appliance unless

specifically recommended in this manual. Refer all

servicing to a factory authorized service center.

To avoid electrical shock hazard, before servicing the

appliance, switch power off at the service panel and lock

the panel to prevent the power from being switched on

accidentally.

Proposition 65Warning:

This product may contain a chemical known to the State

of California, which can cause cancer or reproductive

harm. Therefore, the packaging of your product may

bear the following label as required by California:

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Causes of Damage

NOTICES

▯ RISK OF HEAT DAMAGE TO ADJACENT

APPLIANCES OR KITCHEN UNITS:

If the appliance is in operation for an extended period,

heat and moisture will be generated. Additional

ventilation is required. Open the window or switch on

an extractor hood that discharges the extracted air

and moisture outside the building.

▯ RISK OF DAMAGE TO THE APPLIANCE DUE TO THE

BUILD-UP OF HEAT:

Do not heat roasters, frying pans or grill stones using

more than one burner at a time.

▯ OPERATIONAL FAULT:

Always turn the control knob to the "Off" position when

the appliance is not being used.

Environmental protection

Environmental protecti on

The sections below list a number of energy-saving tips

and provide information on disposing of your appliance.

The packaging of your appliance has been manufactured

using only the materials which are strictly necessary to

provide efficient protection during transport. These

materials are 100% recyclable, thus reducing the

environmental impact. You can also contribute to caring

for the environment by following the advice below:

▯ Dispose of the packaging in the appropriate recycling

bin.

▯ Before you get rid of an old appliance, make sure you

disable it. Contact your local authority to find out the

address of your nearest recycling centre to dispose of

your appliance.

▯ Do not pour used oil down the sink. Collect it in a

sealed container and take it to an appropriate

collection point or, failing that, place it in the rubbish

bin (it will end up in a controlled dump; this is probably

not the best option, but it will avoid contaminating

ground water).

Saving energy

▯ Choose a burner of roughly the same size as your

pan. Place the cookware in the middle.

▯ Use a small saucepan for small quantities. A larger,

less full saucepan requires more energy.

▯ Always place suitable lids on saucepans. Cooking

without a lid consumes significantly more energy. Use

a glass lid so that you can see into the pan without

having to lift the lid.

▯ Cook with a small amount of water. That saves energy.

Vitamins and minerals in vegetables are preserved.

▯ Switch to a lower heat setting when possible. As a

result, you save energy.

Getting Started

Note: Depending on the appliance model, individual

details and colors may differ.

Before Using the Appliance for

the First Time

▯ Remove all packing materials and literature from the

cooktop surface.

▯ Wipe with a clean, damp sponge and dry.

▯ There may be a slight odor during the first several

uses. This is normal and will disappear.

▯ Optimum cooking results depend on the proper

cookware being selected and used. See “Proper

Cookware”.

▯ Read all safety precautions and Use and Care Manual

information prior to operating.

Gas cooktop

1*08&











Burner grates

Control knobs

Small burner with an output of up to

3,400 BTU/h (1kW) OptiSim

feature

see “OptiSim® Burner Cap Placement and

OptiSim® Burner Cap Installation” in section

~ "Accessories" on page 11

Medium burner with an output of up to

6,000 BTU/h (1.76kW)

Large burner with an output of up to

9,010 BTU/h (2.64kW)

Dual-flame burner with an output of up to

17,000 BTU/h (4.98 kW)

Serial Number/Rating label location (right front

underneath)

Control Knobs

Each control knob is marked with the burner it controls.

You can use the control knobs to set the output required

in each case to various positions between the maximum

and the minimum settings. Never try to switch directly

from position “off” to position 1or from position 1to

position “off”.

For dual-flame burners, the inner and outer flames can

be controlled separately. The available power levels are

as follows:

1*08&













Burner grates

Control knobs

Small burner with an output of up to

3,400 BTU/h (1 kW) OptiSim

feature

see “OptiSim® Burner Cap Placement and

OptiSim® Burner Cap Installation” in

section~ "Accessories" on page 11

Medium burner with an output of up to

6,000 BTU/h (1.76 kW)

Large burner with an output of up to

9,010 BTU/h (2.64 kW)

Dual-flame burner with an output of up to

17,000 BTU/h (4.98 kW)

Serial Number/Rating label location

(right front underneath)

Indicators

’

Burner controlled by control knob

off Burner switched off

hi 9

Highest power setting and electric ignition

1 lo Lowest power setting

1 sim Small burner

Use this setting with the OptiSim

cap.

1 sim Dual-flame burner

Lowest power setting

Inner and outer flame on

full power.

Outer flame on low power,

inner flame on full power.

Inner flame on full power.

Inner flame on low power.

Sealed Burners

Your new cooktop has sealed gas burners. There are no

burner parts under the cooktop to clean, disassemble or

adjust. Your cooktop has four different burner sizes:

small, medium, large and dual-flame.

Burner Cap and Burner Base Placement

9 WARNING

To prevent flare-ups, do not use the cooktop without

all burner caps and all burner grates properly

positioned.

9 WARNING

To prevent burns, do not touch burner caps or

grates while hot. Turn the cooktop off and allow the

burners to cool.

The burner caps must be properly placed for the cooktop

to function properly. If the burner cap is not properly

placed, one or more of the following may occur:

▯ Burner flames are too high.

▯ Flames shoot out of burners.

▯ Stainless steel discolors.

▯ Burners do not ignite.

▯ Burner flames light unevenly.

▯ Burner emits gas odor.

Always remove the burner grates carefully. When moving

a burner grate, the burner grates next to it may also

move.

Accessories

Depending on the model, the cooktop may include the

following accessories. These can also be purchased

online at the Bosch e-Shop or from Customer Support.

--------

Order number

The customer is responsible for the proper use of

accessories.

Parts

1 Igniter

2 Thermocouple

3 Burner base

4 Burner cap















Wok ring

Only suitable for use on

dual-flame burners. Use

cookware with a rounded

base.

To extend the service life

of the appliance, we rec-

ommend using the wok

ring.

OptiSim® Burner Cap

Placement and OptiSim®

Burner Cap Installation

Burner cap that is used

only when cooking at mini-

mum output, like melting

chocolate or simmering

delicate sauces while mini-

mizing the risk of scorch-

ing.

Place the OptiSim® cap

only on the burner cap of

the small burner.

HEZ298107 Wok ring

Operation

Use the cooktop for surface cooking applications such

as boiling, frying, simmering, steaming and sautéing.

9 WARNING

The burning of gas cooking fuel can create small

amounts of carbon monoxide, benzene,

formaldehyde and soot. To minimize exposure to

these substances, the burners should be adjusted

by a certified installer or authorized servicer to

ensure proper combustion. Ensure proper

ventilation with an open window or use a ventilation

fan or hood when cooking with gas. Always operate

the unit according to the instructions in this manual.

9 CAUTION

To avoid possible injury or damage to the

appliance, ensure grates are installed exactly per

installation instructions and not backwards or

upside down.

In Case of a Power Failure

In the event of a power failure, the burners may be lit

with a match. Press the control knob for the selected

burner and turn it counterclockwise to the highest

power setting.

Hold a lit lighter or a match against the burner.

Electronic Ignition

The cooktop uses electronic igniters to light the burners.

There is no pilot light. Each burner has its own igniter.

Press the control knob for the selected burner and turn

it counterclockwise to the symbol .

Sparks are produced on all burners while you are

pressing and holding the control knob. The burner

ignites.

Release the control knob.

Turn the control knob to the required position.

If the burner does not ignite, turn it off and repeat the

steps described above. This time, hold the control knob

down longer (up to 10 seconds).

9 WARNING

If the burner does not turn on after 15 seconds, turn

off the control knob and open the door or window in

the room. Wait at least a minute before igniting the

burner again.

Note: It is important to keep the appliance clean. If the

igniters are dirty, this may cause ignition issues. Clean

the igniters regularly with a small non-metallic brush.

Take care to prevent the igniters from suffering any

heavy impacts.

Flame Failure Safety System

Your cooktop is equipped with a safety system

(thermocouple) that cuts off the gas when the burners

are accidentally turned off.

To ensure that this device is active:

Turn on the burner as usual.

Without releasing the control knob, press and hold it

down firmly for 4seconds after lighting the flame.

Typical Flame Characteristics

The burner flame should be blue in color and stable with

no yellow tips, excessive noise or fluttering. It should

burn completely around the burner cap.

Checking Flame Characteristics:

▯ If the flame is completely or mostly yellow, verify that

the regulator is set for the correct fuel. After

adjustment, retest.

▯ Some yellow streaking is normal during the initial start-

up. Allow unit to operate 4to 5 minutes and re-

evaluate before making adjustments.

▯ Foreign particles in the gas line may cause an orange

flame during initial use. This should disappear with

use. Check burner to make sure port holes are not

obstructed. If the ports are clogged ~ "Before Calling

for Service" on page 20

Note: An audible “pop” may be heard when the burner

is turned off manually. The “popping” may be louder with

LP gas than with natural gas. This is normal.

Turning off a burner

Turn the corresponding control knob clockwise to the

“off” position.

9 WARNING

If the burner flames are accidentally blown out, turn

the control knob of the burner to the “off” position

and do not try to relight it for at least 1minute.

Yellow flames:

Further adjustment is required.

Yellow tips on outer cones:

Normal for LP Gas.

Soft blue flames:

Normal for Natural Gas.

General Notes

It is normal to hear a soft whistling noise while the burner

is operating.

When first used, it is normal for the burner to give off

odors. This does not pose any risk and does not indicate

a malfunction. They will disappear in time.

An orange-colored flame is normal. This is caused by the

presence of dust in the atmosphere, spilled liquids, etc.

Getting the Most Out of Your Appliance

Suitable cookware

The cookware must not overhang the edge of the

cooktop.

Cookware Recommendations

Note: When using certain pots or pans, a slight and

temporary deformation of the steel cooking surface may

occur. This is normal and does not affect the functionality

of the appliance.

The following recommendations can help you save

energy and avoid damaging your cookware:

Proper Cookware

▯ Aluminum or copper bottomed pans conduct heat

evenly.

▯ Steel pans, if not combined with other metals, may

cook unevenly.

▯ Cast-iron cookware absorbs heat slowly and cooks

more evenly at low-to-medium settings.

▯ Flat heavy bottom pans provide even heat and

stability.

▯ DO NOT USE pans that are thin, warped, dented or

ridged as they heat unevenly.

Cooking Times Chart

The table below lists the optimal heat settings and

cooking times for various types of food. The information

given applies when cooking four portions.

The cooking times and heat settings may vary depending

on the type of food, its weight and quality, on the type of

gas used, and on the material from which the cookware

is made. To prepare this dish, stainless steel cookware

was mainly used.

Always use cookware that is the right size and place it in

the center of the burner. You can find information about

the diameter of the cookware under ~ "Suitable

cookware"

How to use the charts

Each type of food can be prepared in one or two steps.

Each step contains information about the following:

Burner Minimum

diameter of the

cookware base

Maximum

diameter of the

cookware base

Dual-flame

burner

" (22 cm)

11¾" (30 cm)

Large burner 7¾" (20 cm) 10¼" (26 cm)

Medium burner 5½" (14 cm)

" (22 cm)

Small burner 4¾" (12 cm) 6¼" (16 cm)

Use the right size pans for

each burner.

Do not use small pans on

large burners. The flame

should not touch the sides

of the pan.

Do not use damaged pans

that do not sit evenly on

the cooktop. Pans may tip

over.

Only use pans with a thick,

flat base.

Do not cook without a lid

and make sure the lid is

properly placed to avoid

wasting energy.

Always make sure the pan

is well-centered on the

burner, otherwise it could

tip over.

Do not place large pans on

the burners near the

control knobs. These may

be damaged by the very

high temperatures.

Place the pans on the

burner grates, never

directly on the burner.

Make sure that the burner

grates and burner caps are

correctly placed before

using the appliance.

Pans should be placed on

the cooktop carefully.

Do not strike or place

excessive weight on the

cooktop.

Cooking method

Heat setting

Cooking time in minutes

OEV

Cooking methods featured in the table

Note: The symbols do not appear on the appliance.

They are used here to represent the various cooking

methods.

Information on how to cook food on the different burners

is displayed. We recommend using the first burner that

was mentioned. The model overview describes all of the

burners on the cooktop.

Example:

This example shows the preparation of fish soup using

the large burner, the medium burner and the dual-flame

burner.

When using the large burner (recommended option), the

total cooking time is between 12and 17minutes.

▯ Step 1: Bring to the boil. Set heat setting 8for 7-

9minutes.

▯ Step 2: Continue boiling. Switch to heat setting 1for 5-

8minutes.

This information also applies for the other suggested

burners.

›

Bringing to the boil

Continuing cooking

Building up pressure in the pressure cooker

Maintaining pressure in the pressure cooker

Frying on high heat

™

Frying gently

Melting, liquefying

* Without lid

** Stirring constantly

*** With OptiSim®

Meal Total

time in

min.

Step 1 Step 2

Burner

˜§v ˜§v

Soups, creamy soups

Fish soup

Large burner 12-17

›

8 7-9

1 5-8

Medium

burner

17-22

›

8 11-

1 6-9

Dual-flame

burner

10-15

›

9 4-6

4 6-9

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Soups, creamy soups

Fish soup

Large

burner

12-17

›

8 7-9

1 5-8

Medium

burner

17-22

›

8 11-13

1 6-9

Dual-flame

burner

10-15

›

8 5-7

4 5-8

Minestrone (vegetable soup)

Large

burner

47-52

›

9 10-12

5 37-40

Medium

burner

57-62

›

9 10-12

6 47-50

Dual-flame

burner

45-50

›

7 8-10

4 37-40

Pasta and rice

Spaghetti

Large

burner

18-22

›

9 8-10

6 10-12

Medium

burner

20-24

›

9 10-12

7 10-12

Dual-flame

burner

17-21

›

8 7-9

6 10-12

Rice

Large

burner

17-22

›

9 5-7

2 12-15

Medium

burner

18-23

›

9 7-9

6 11-14

Dual-flame

burner

13-18

›

7 4-6

4 9-12

Ravioli

Large

burner

9-14

›

9 4-6

6 5-8

Medium

burner

17-22

›

8 12-14

8 5-8

Dual-flame

burner

8-13

›

8 3-5

8 5-8

Vegetables and legumes

Boiled potatoes (mashed, potato salad)

Large

burner

23-28

9 8-10

5 15-18

Medium

burner

25-30

9 10-12

6 15-18

Dual-flame

burner

22-27

9 8-10

7 14-17

Hummus (puréed chickpeas)

Large

burner

50-55

9 10-12

4 40-43

Dual-flame

burner

47-52

7 10-12

6 37-40

Medium

burner

52-57

9 12-14

5 40-43

Mountain lentils

Large

burner

40-45

›

9 8-10

8 32-35

Medium

burner

50-55

›

9 18-20

6 32-35

Dual-flame

burner

40-45

›

9 8-10

4 32-35

Deep-fried vegetables

Large

burner

12-17

š*

7 6-8

š*

6 6-9

Dual-flame

burner

10-15

š*

7 5-7

š*

5 5-8

Medium

burner

20-25

š*

9 20-25

Sautéed fresh vegetables**

Dual-flame

burner

5-7

š*

9 5-7

Large

burner

6-8

š*

9 6-8

Chips

Dual-flame

burner

13-18

š*

7 13-18

Large

burner

15-20

š*

9 15-20

Medium

burner

25-30

š*

9 25-30

Eggs

Omelette (1port.)

Medium

burner

3-5

š*

8 3-5

Large

burner

2-4

š*

9 2-4

Dual-flame

burner

2-4

š*

5 2-4

Spanish tortilla

Large

burner

25-30

š*

9 25-30

Dual-flame

burner

18-23

š*

7 18-23

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Sauces

Tomato sauce

Dual-flame

burner

20-25

›

9 4-5

1 16-20

White sauce**

Small

burner

10-15

Ÿ*

6 2-4

œ*

6 8-11

Medium

burner

10-15

Ÿ*

5 2-4

œ*

5 8-11

Large

burner

3-8

Ÿ*

5 1-2

œ*

5 2-6

Blue cheese sauce**

Small

burner

4-6

Ÿ*

7 4-6

Medium

burner

3-5

Ÿ*

7 3-5

Dual-flame

burner

4-6

Ÿ*

3 4-6

Neapolitan sauce

Medium

burner

18-23

š*

6 2-4

™*

4 16-19

Large

burner

13-18

š*

9 1-3

™*

8 12-15

Dual-flame

burner

13-18

š*

7 1-3

™*

5 12-15

Carbonara sauce

Medium

burner

10-15

™*

6 5-7

™*

3 5-8

Large

burner

8-13

™*

5 4-6

™*

3 4-7

Dual-flame

burner

10-15

™*

3 10-15

Fish

Breaded cod

Large

burner

5-10

š*

8 5-10

Medium

burner

8-13

š*

9 8-13

Dual-flame

burner

5-10

š*

6 5-10

Baked salmon

Large

burner

5-10

š*

7 2-4

™

1 3-6

Medium

burner

5-10

š*

8 2-4

™

1 3-6

Dual-flame

burner

4-9

š*

6 2-4

™

1 2-5

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Mussels

Large

burner

5-7

›

9 5-7

Dual-flame

burner

3-5

›

9 3-5

Medium

burner

10-12

›

9 10-12

Meat

Duck breast (x 1)

Medium

burner

6-8

š*

7 6-8

Large

burner

9-11

š*

7 9-11

Dual-flame

burner

6-8

š*

5 6-8

Beef tenderloin stroganoff

Large

burner

8-13

š*

9 8-13

Dual-flame

burner

5-10

š*

7 5-10

Medium

burner

12-17

š*

9 12-17

Chicken (8chicken breast fillets)

Large

burner

7-12

š*

9 2-4

š*

6 5-8

Dual-flame

burner

7-12

š*

9 2-4

š*

6 5-8

Medium

burner

7-12

š*

9 7-12

Ground meat

Large

burner

15-20

š*

8 15-20

Medium

burner

20-25

š*

9 20-25

Dual-flame

burner

15-20

š*

6 15-20

Convenience products

Frozen croquettes (x 16)

Frozen fish fingers (x 12)

Large

burner

6-10

8 6-10

Medium

burner

8-12

8 8-12

Dual-flame

burner

4-8

8 4-8

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Fried sausages (x 12)

Large

burner

5-10

9 1-3

7 4-7

Medium

burner

7-12

9 7-12

Dual-flame

burner

5-10

8 1-3

7 4-7

Boiled sausages (x 12)

Medium

burner

8-13

›

9 8-13

Large

burner

9-14

›

7 9-14

Dual-flame

burner

9-14

›

4 9-14

Hamburger (x 4pcs., 0.4in/1cm, 110g)

Large

burner

4-9

š*

9 1-3

š*

7 3-6

Medium

burner

6-11

š*

9 1-3

š*

7 5-8

Dual-flame

burner

3-8

š*

9 1-3

š*

7 2-5

Frozen vegetables**

Large

burner

7-12

š*

9 7-12

Dual-flame

burner

5-10

š*

9 5-10

Medium

burner

10-15

š*

9 10-15

Pizza (8inch)

Dual-flame

burner

4-8

™

4 4-8

Large

burner

16-20

™

1 16-20

Desserts

Rice pudding**

Medium

burner

30-35

›*

8 9-11

œ*

4 21-24

Small

burner

40-45

›*

9 12-14

œ*

2 28-31

Dual-flame

burner

23-28

›*

6 8-10

œ*

4 15-18

Melting chocolate

Small

burner***

10-15

Ÿ*

Crêpes (x 4)

Large

burner

17-22

š*

7 1-3

š*

5 16-19

Dual-flame

burner

9-14

š*

5 1-3

š*

4 8-11

Medium

burner

20-25

š*

9 1-3

š*

7 19-22

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Cooking tips

▯ Use a pressure cooker to cook creamy soups and

legumes. This significantly reduces the cooking time. If

you are using a pressure cooker, follow the

manufacturer's instructions. Add all of the ingredients

at the start.

▯ Always use a lid when cooking potatoes and rice. This

significantly reduces the cooking time. The water must

be boiling before you add pasta, rice or potatoes.

Then adjust the heat setting to continue boiling.

▯ For pan-cooked dishes, heat the oil up first. As soon

as you have started the frying, keep the pan at a

constant temperature by adjusting the heating setting

as required. When preparing several portions, wait

until the relevant temperature has been reached again.

Turn the food regularly.

▯ When cooking soups, cream, lentils or chickpeas, add

all of the ingredients to the cookware at the same time.

Bread pudding (in the double boiler)

Large

burner

25-30

9 10-12

6 15-18

Dual-flame

burner

22-27

9 7-9

7 15-18

Medium

burner

30-35

9 12-14

7 18-21

Custard**

Large

burner

3-8

œ*

5 3-8

Medium

burner

8-13

œ*

5 8-13

Dual-flame

burner

8-13

œ*

3 8-13

Sponge cake (in the double boiler)

Large

burner

35-40

›

9 35-40

Dual-flame

burner

40-45

›

9 40-45

Food Total

time

min.

Step 1 Step 2

Burner

˜§v ˜§v

Cleaning and Maintenance

Cleaning

The entire cooktop can be safely cleaned by wiping with

a soapy sponge, then rinsing and drying. If stubborn soil

remains, follow the recommended cleaning methods

below.

Cleaning recommendations:

▯ Always use the mildest cleaner that will do the job.

Use clean, soft cloths, sponges or paper towels.

▯ Rub stainless steel finishes in the direction of the

grain. Wipe area dry to avoid water marks.

▯ Before cleaning, be certain the burners are turned off

and the grates and burners are cool.

▯ Do not clean removable cooktop parts in any self

cleaning oven.

▯ After cleaning, place all parts in their proper positions

before using cooktop.

▯ For proper burner performance, keep igniters clean

and dry.

▯ Keep the igniter ports clean for proper lighting

performance of the burners. It is necessary to clean

these when there is a boilover or when the burner

does not light even though the electronic igniters click.

▯ Do not use flammable cleansers such as lighter fluid.

9 CAUTION

All igniters spark when any single burner is turned

on. Do not touch any of the burners when the

cooktop is in use.

Cleaning Guidelines

The cleaners recommended below and on the following

page indicate a type and do not constitute an

endorsement of a particular brand. Use all products

according to package directions.

Cooktop Part / Material Suggested Cleaners Important Reminders

Burner base /

aluminum alloy

▯ Nonabrasive Cleaner: Dish soap and hot

water. Rinse and dry immediately.

▯ Mild Abrasive Cleaners: Bon Ami® or

Soft Scrub®.

▯ Do not scratch or gouge the port open-

ings.

▯ Clean ports with a wire or straightened

paper clip.

▯ Do not use a toothpick that may break

off.

▯ Do not soak burner bases.

▯ A toothbrush can be used for stubborn

stains.

Burner cap / porcelain

enamel

▯ Nonabrasive Cleaner: Dish soap and hot

water. Rinse and dry immediately.

▯ Nonabrasive Cleaners: Ammonia, Fan-

tastic

, Formula 409

▯ Mild Abrasive Cleaners: Bon Ami

, Ajax

Comet

▯ Liquid Cleaners: Kleen King

, Soft

Scrub

▯ For food stains, use an abrasive cleaner

such as, Zud

or Bar Keepers Friend

▯ Acidic and sugar-laden spills deteriorate

the porcelain enamel.

▯ Do not use wet sponge or towel on hot

porcelain.

▯ Do not soak burner caps.

▯ Always apply minimal pressure with abra-

sive cleaners.

▯ Dry thoroughly and make sure burner

cap is seated properly on burner base

after cleaning.

Maintenance

The appliance requires only regular cleaning for proper

operation. No other maintenance is required.

For detailed instructions see ~ "Cleaning and

Maintenance" on page 18

Control knobs and

grommets

▯ Nonabrasive Cleaner: Dish soap and hot

water.

▯ Dry thoroughly after cleaning.

NOTICE: Do not remove the control knobs

when cleaning the appliance. The appliance

may be damaged if moisture finds its way

inside.

▯ Do not soak knobs or grommets.

▯ Do not use abrasive scrubbers or clean-

ers, such as Bon Ami®, Ajax®, or

Comet®. They may permanently damage

the finish or remove graphics.

9 WARNING

Do not remove grommets or white

rings as they will require Customer

Service to refit and the cooktop must

not be used without all parts fitted cor-

rectly.

Exterior finish / stainless

steel

▯ Nonabrasive Cleaners: Dish soap and

hot water, Fantastic

, Formula 409

Rinse and dry immediately.

▯ Cleaner Polish: Stainless Steel Magic

protect the finish from staining and pit-

ting; enhances appearance.

▯ Hard water spots: Household white vine-

gar.

▯ Mild Abrasive Cleaners: Kleen King Stain-

less Steel liquid cleaner, Bon Ami

▯ Heat discoloration: Bar Keepers Friend

▯

Do not use steel wool pads. They will

scratch the surface.

▯ Stainless steel resists most food stains

and pit marks providing the surface is

kept clean and protected.

▯ Never allow food stains or salt to remain

on stainless steel for any length of time.

▯ Rub lightly in the direction of the grain.

▯ Chlorine or chlorine compounds in some

cleaners are corrosive to stainless steel.

Check ingredients on label before using.

Grates and grate bridge /

porcelain enamel on cast

iron

▯ Nonabrasive cleaners: Hot water and

detergent, Fantastic

, Formula 409

Rinse and dry immediately.

▯ Mild Abrasive Cleaners: Bon Ami

and

Soft Scrub

▯ Stubborn Stains: Use soap-filled steel

wool pads.

▯ You may also clean the burner grates in

the dishwasher. Remove any burnt-on

food prior to placing the burner grates in

the dishwasher. Place them on the low-

est rack of dishwasher and use the dish-

washer manufacturer’s recommended

detergent.

▯ The grates are heavy; use care when lift-

ing. Place on a protected surface for

cleaning.

▯ Blisters/ crazing/ chips are common due

to the extreme temperatures on grate fin-

gers and rapid temperature changes.

▯ Acidic and sugar-laden spills deteriorate

the enamel. Remove soil immediately

after unit has cooled enough to touch.

▯ Abrasive cleaners, used too vigorously or

too often can eventually mar the enamel.

▯ Do not clean in a self-cleaning oven.

Igniters / ceramic ▯ Carefully wipe with a cotton swab damp-

ened with water, ammonia or Formula

409

▯ Gently scrape soil off with a toothpick.

▯ Avoid excess water on the igniter. A

damp igniter will prevent burner from

lighting.

▯ Remove any lint that may remain after

cleaning.

Cooktop Part / Material Suggested Cleaners Important Reminders

Service

Before Calling for Service

Before calling Customer Service, consider the

suggestions and instructions below:

9 CAUTION

Repairs should only be done by an authorized

servicer.

Improper repair of your appliance may result in risk

of severe physical injury or death.

How to Obtain Warranty Service

To obtain warranty service for your Product, you should

contact the nearest Bosch authorized servicer.

Model (E) number and FD number

When you contact our service, please have the Model

(E) number and the FD number for your appliance

available.

You can find this information on the rating label

▯ in the Appliance Document List

▯ on the underside of the appliance

Questions? Please contact us. We look forward to

hearing from you.

Problem Possible cause Suggestion

The general electrical

system is malfunction-

ing.

Defective fuse. Check the fuse in the main fuse box and

change it if it is damaged.

The circuit breaker has tripped. Check the power control panel to see if the

circuit breaker has tripped.

The function for auto-

matically turning on the

cooktop does not work.

There may be food or cleaning products

stuck between the igniters and the burners.

The space between the igniters and the

burner must be clean.

The burners are wet. Dry the burner caps carefully.

The burner caps are not correctly posi-

tioned.

Check that the burner caps are correctly

positioned.

The burner flame is not

uniform.

The burner components are not correctly

positioned.

Correctly place the parts on the appropriate

burner.

The grooves on the burner are dirty. Clean the grooves on the burner.

The burner immedi-

ately turns off after

releasing the control

knob.

The control knob was not held down long

enough.

Once the burner is on, hold the control knob

down a few seconds longer.

The grooves on the burner are dirty. Clean the grooves on the burner.

A Rating label location

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Bosch NGM8657UC User guide

Brand: Bosch

Model: NGM8657UC

Category: Fireplaces

Type: User guide

This manual is also suitable for

NGM8057UC

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