Samsung | GK642 | Samsung GK642 User Manual

GK642
Commercial Microwave Oven
Instruction Manual
This manual is made with 100 % recycled paper.
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contents
safety information
Safety information.................................................................................2
Quick look-up guide..............................................................................13
Oven features.........................................................................................14
Oven.....................................................................................................14
Control panel........................................................................................14
Oven use.................................................................................................15
Checking that your oven is operating correctly......................................15
Cooking/reheating................................................................................15
Using the start and +30 sec button.......................................................15
Using the stop/cancel button................................................................16
Setting cooking time and power level....................................................16
Power levels.........................................................................................16
Using rapid defrost button....................................................................17
Memory programming..........................................................................17
Using the check button.........................................................................18
Resetting the memory program cycle counter.......................................19
Setting the sound.................................................................................19
Using the double quantity button..........................................................20
Cookware guide....................................................................................20
Cooking guide........................................................................................21
Troubleshooting.....................................................................................24
Technical specifications.......................................................................25
USING THIS INSTRUCTION BOOKLET
You have just purchased a Buffalo microwave oven. Your Owner’s
Instructions contains valuable information on cooking with your microwave
oven:
• Safety precautions
• Suitable accessories and cookware
• Useful cooking tips
• Cooking tips
LEGEND FOR SYMBOLS AND ICONS
WARNING
Hazards or unsafe practices that may result in severe
personal injury or death.
CAUTION
Hazards or unsafe practices that may result in minor
personal injury or property damage.
Warning; Fire hazard
Warning; Hot surface
Warning; Electricity
Warning; Explosive material
Do NOT attempt.
Do NOT touch.
Do NOT disassemble.
Follow directions explicitly.
Unplug the power plug
from the wall socket.
Make sure the machine is
grounded to prevent electric
shock.
Call the service center for
help.
Note
Important
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WARNING
(Microwave function only)
WARNING: If the door or door seals
are damaged, the oven must not be
operated until it has been repaired by a
competent person.
WARNING: It is hazardous for anyone
other than a competent person to carry
out any service or repair operation that
involves the removal of a cover which
gives protection against exposure to
microwave energy.
WARNING: Only allow children to use
the oven without supervision when
adequate instructions have been given
so that the child is able to use the oven
in a safe way and understands the
hazards of improper use.
WARNING: This appliance can be
used by children aged from 8 years
and above and persons with reduced
physical, sensory or mental capabilities
or lack of experience and knowledge
if they have been given supervision
or instruction concerning use of the
appliance in a safe way and understand
the hazards involved. Children shall not
play with the appliance. Cleaning and
user maintenance shall not be made by
children unless they are aged from 8
years and above and supervised.
Only use utensils that are suitable for use
in microwave ovens.
When heating food in plastic or paper
containers, keep an eye on the oven due
to the possibility of ignition.
The microwave oven is intended for
heating food and beverages. Drying of
food or clothing and heating of warming
pads, slippers, sponges, damp cloth and
similar may lead to risk of injury, ignition
or fire.
01 SAFETY INFORMATION
IMPORTANT SAFETY INSTRUCTIONS
READ CAREFULLY AND KEEP FOR
FUTURE REFERENCE.
Make sure that these safety precautions are
obeyed at all times.
Before using the oven, confirm that the
following instructions are followed.
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If smoke is emitted, switch off or unplug
the appliance and keep the door closed
in order to stifle any flames.
WARNING: Microwave heating of
beverages can result in delayed eruptive
boiling, therefore care must be taken
when handling the container.
WARNING: The contents of feeding
bottles and baby food jars shall be
stirred or shaken and the temperature
checked before consumption, in order to
avoid burns.
Eggs in their shell and whole hard-boiled
eggs should not be heated in microwave
ovens since they may explode, even
after microwave heating has ended.
The oven should be cleaned regularly
and any food deposits removed.
Failure to maintain the oven in a clean
condition could lead to deterioration of
the surface that could adversely affect
the life of the appliance and possibly
result in a hazardous situation.
The appliance is not intended for
installing in road vehicles, caravans and
similar vehicles etc.
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities,
or lack of experience and knowledge,
unless they have been given supervision
or instruction concerning use of the
appliance by a person responsible for
their safety.
Children should be supervised to ensure
that they do not play with the appliance.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent or similarly qualified persons in
order to avoid a hazard.
WARNING: Liquids and other foods
must not be heated in sealed containers
since they are liable to explode;
The appliance should not be cleaned
with a water jet.
This oven should be positioned proper
direction and height permitting easy
access to cavity and control area.
Before using the your oven first time,
oven should be operated with the water
during 10 minute and then used.
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WARNING
(Oven function only) - Optional
WARNING: When the appliance is
operated in the combination mode,
children should only use the oven
under adult supervision due to the
temperatures generated.
During use the appliance becomes hot.
Care should be taken to avoid touching
heating elements inside the oven.
WARNING: Accessible parts may
become hot during use. Young children
should be kept away.
A steam cleaner is not to be used.
01 SAFETY INFORMATION
WARNING: Ensure that the appliance is
switched off before replacing the lamp to
avoid the possibility of electric shock.
WARNING: The appliance and its
accessible parts become hot during use.
Care should be taken to avoid touching
heating elements.
Children less than 8 years of age shall
be kept away unless continuously
supervised.
The temperature of accessible surfaces
may be high when the appliance is
operating.
The door or the outer surface may get
hot when the appliance is operating.
Keep the appliance and its cord out of
reach of children less than 8 years.
If the oven generates a strange noise,
a burning smell, or smoke is emitted,
unplug the power plug immediately and
contact your nearest service center.
The microwave oven has to be
positioned so that plug is accessible.
The microwave oven is intended to be
used on the counter or counter top use
only, the microwave oven shall not be
placed in a cabinet.
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This appliance can be used by
children aged from 8 years and above
and persons with reduced physical,
sensory or mental capabilities or lack of
experience and knowledge if they have
been given supervision or instruction
concerning use of the appliance in a
safe way and understand the hazards
involved. Children shall not play with
the appliance. Cleaning and user
maintenance shall not be made by
children without supervision.
Do not use harsh abrasive cleaners or
sharp metal scrapers to clean the oven
door glass since they can scratch the
surface, which may result in shattering of
the glass.
Appliances are not intended to be
operated by means of an external timer
or separate remote-control system.
This product is a Group 2 Class A ISM
equipment. The definition of group 2 which
contains all ISM equipment in which radiofrequency energy is intentionally generated
and/or used in the form of electromagnetic
radiation for the treatment of material, and
EDM and arc welding equipment. For Class
A equipment is equipment suitable for use in
all establishments other than domestic and
those directly connected to a low voltage
power supply network which supplies
buildings used for domestic purposes.
Warning: Class A equipment is intended
for use in an industrial environment. There
may be potential difficulties in ensuring
electromagnetic compatibility in other
environments, due to conducted as well as
radiated disturbances.
INSTALLING YOUR MICROWAVE OVEN
Place the oven on a flat level surface 85 cm
above the floor. The surface should be strong
enough to safety bear the weight of the oven.
1.When you install your oven,
10 cm
20 cm
behind
above
make sure there is adequate
ventilation for your oven by
85 cm of
10 cm on
leaving at least 10 cm (4 inches) the floor the side
of space behind and, on the sides of the
oven and 20 cm (8 inches) of space above.
2.Remove all packing materials inside the oven.
3.Install the roller ring and turntable. Check
that the turntable rotates freely.
(Turntable type model only)
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CLEANING YOUR MICROWAVE OVEN
The following parts of your microwave oven
should be cleaned regularly to prevent
grease and food particles from building up:
•Inside and outside surfaces
•Door and door seals
•Turntable and Roller rings
(Turntable type model only)
ALWAYS ensure that the door seals are
clean and the door closes properly.
Failure to maintain the oven in a clean
condition could lead to deterioration of the
surface that could adversely affect the life
of the appliance and possibly result in a
hazardous situation.
1.Clean the outside surfaces with a soft cloth
and warm, soapy water. Rinse and dry.
2.Remove any splashes or stains on the
inside surfaces of oven with a soapy cloth.
Rinse and dry.
3.To loosen hardened food particles and
remove smells, place a cup of diluted
lemon juice in the oven and heat for ten
minutes at maximum power.
4.Wash the dishwasher-safe plate whenever
necessary.
DO NOT spill water in the vents. NEVER
use any abrasive products or chemical
solvents. Take particular care when
cleaning the door seals to ensure that no
particles:
•Accumulate
01 SAFETY INFORMATION
4.This microwave oven has to be positioned
so that plug is accessible.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent or similarly qualified persons in
order to avoid a hazard.
For your personal safety, plug the cable
into a proper AC earthed socket.
Do not install the microwave oven in hot or
damp surroundings like next to a traditional
oven or radiator. The power supply
specifications of the oven must be respected
and any extension cable used must be
of the same standard as the power cable
supplied with the oven. Wipe the interior and
the door seal with a damp cloth before using
your microwave oven for the first time.
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•Prevent the door from closing correctly
Clean the microwave oven cavity right after
each use with a mild detergent solution, but
let the microwave oven cool down before
cleaning in order to avoid injury.
When cleaning the upper
part inside the cavity, it will
be convenient to turn heater
downward by 45 ° and clean it.
(Swing heater model only)
STORING AND REPAIRING YOUR
MICROWAVE OVEN
A few simple precautions should be taken
when storing or having your microwave oven
serviced.
The oven must not be used if the door or
door seals are damaged:
•Broken hinge
•Deteriorated seals
•Distorted or bent oven casing
Only a qualified microwave service technician
should perform repair.
NEVER remove the outer casing from
the oven. If the oven is faulty and needs
servicing or you are in doubt about its
condition:
•Unplug it from the wall socket
•Contact the nearest after-sales service
centre
If you wish to store your oven away
temporarily, choose a dry, dustfree place.
Reason : Dust and damp may adversely
affect the working parts in the oven.
This microwave oven is not intended for
commercial use.
The Light bulb should not be replaced in
person for safety reasons.
Please contact nearest authorised Buffalo
customer care centre to arrange for a
qualified engineer to replace the bulb.
WARNING
Only qualified staff should be allowed to modify or
repair the appliance.
Do not heat liquids and other food in sealed
containers for microwave function.
For your safety, do not use high-pressure water
cleaners or steam jet cleaners.
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Do not hook the power cord on a metal object,
insert the power cord between the objects or behind
the oven.
Do not use a damaged power plug, damaged power
cord or loose wall socket. When the power plug
or power cord is damaged, contact your nearest
service centre.
Do not pour or directly spray water onto the oven.
Do not place objects on the oven, inside or on the
door of the oven.
Do not spray volatile material such as insecticide
onto the surface of the oven.
Do not store flammable materials in the oven. Take
special care when heating dishes or drinks that
contain alcohol as alcohol vapours may contact a
hot part of the oven.
Keep children away from the door when opening or
closing it as they may bump themselves on the door
or catch their fingers in the door.
WARNING: Microwave heating of beverages can
result in delayed eruptive boiling, therefore care must
be taken when handling the container; To prevent
this situation ALWAYS allow a standing time of at
least 20 seconds after the oven has been switched
off so that the temperature can equalize. Stir during
heating, if necessary, and ALWAYS stir after heating.
In the event of scalding, follow these FIRST AID
instructions:
• Immerse the scalded area in cold water for at
least 10 minutes.
• Cover with a clean, dry dressing.
• Do not apply any creams, oils or lotions.
Do not touch the power plug with wet hands.
Do not turn the appliance off by unplugging the
power plug while an operation is in progress.
Do not insert fingers or foreign substances, If any
foreign substance such as water has entered the
appliance, unplug the power plug and contact your
nearest service centre.
Do not apply excessive pressure or impact to the
appliance.
Do not place the oven over a fragile object such as a
sink or glass object.
Do not use benzene, thinner, alcohol, steam cleaner
or high pressure cleaner to clean the appliance.
Ensure that the power voltage, frequency and
current are the same as those of the product
specifications.
Plug the power plug into the wall socket firmly. Do
not use a multiple plug adapter, an extension cord or
an electric transformer.
01 SAFETY INFORMATION
Do not install this appliance; near heater,
inflammable material; in a humid, oily or dusty
location, in a location exposed to direct sunlight and
water or where gas may leak; on un level ground.
This appliance must be properly grounded in
accordance with local and national codes.
Remove all foreign substances such as dust or
water from the power plug terminals and contact
points using a dry cloth on a regular basis.
Do not pull or excessively bend or place heavy
objecton the power cord.
In the event of a gas leak (such as propane gas, LP
gas, etc.), ventilate immediately without touching the
power plug.
Do not put the tray or rack in water shortly after
cooking because it may cause breakage or damage
of the tray or rack.
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Do not operate the microwave oven for deep
fat frying because the oil temperature cannot be
controlled. This could result in a sudden boil over of
the hot liquid.
Stand at arms length from the oven when opening
the door to avoid getting scalded by escaping hot air
or steam.
Do not operate the microwave oven when it is
empty. The microwave oven will automatically
shut down for 30 minutes for safety purposes. We
recommend placing a glass of water inside the oven
at all times to absorb microwave energy in case the
microwave oven is started accidentally.
CAUTION
Only use utensils that are suitable for use in
microwave ovens; DO NOT use any metallic
containers, Dinnerware with gold or silver trimmings,
Skewers, forks, etc.
Remove wire twist ties from paper or plastic bags.
Reason: Electric arcing or sparking may occur and
may damage the oven.
Do not use your microwave oven to dry papers or
clothes.
Use shorter times for smaller amounts of food to
prevent overheating and burning food.
Do not immerse the power cable or power plug in
water and keep the power cable away from heat.
Eggs in their shell and whole hard-boiled eggs
should not be heated in microwave ovens since they
may explode, even after microwave heating has
ended; Also do not heat airtight or vacuum-sealed
bottles, jars, containers, nuts inshells, tomatoes etc.
Do not cover the ventilation slots with cloth or paper.
They may catch fire as hot air escapes from the
oven. The oven may also overheat and switch itself
off automatically, and will remain off until it cools
sufficiently.
Always use oven mitts when removing a dish from
the oven to avoid unintentional burns.
Stir liquids halfway during heating or after heating
ends and allow the liquid stand at least 20 seconds
after heating to prevent eruptive boiling.
Install the oven in compliance with the clearances stated
in this manual. (See installing your microwave oven.)
Take care when connecting other electrical
appliances to sockets near the oven.
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY. (MICROWAVE FUNCTION ONLY)
Failure to observe the following safety precautions may result in harmful exposure to
microwave energy.
(a) Under no circumstances should any attempt be made to operate the oven
with the door open or to tamper with the safety interlocks (door latches) or to
insert anything into the safety interlock holes.
(b) Do NOT place any object between the oven door and front face or allow
food or cleaner residues to accumulate on sealing surfaces. Ensure that the
door and door sealing surfaces are kept clean by wiping after use first with a
damp cloth and then with a soft dry cloth.
(c) Do NOT operate the oven if it is damaged until it has been repaired by a
qualified microwave service technician trained by the manufacturer. It is
particularly important that the oven door closes properly and that there is no
damage to the:
(1) door (bent)
(2) door hinges (broken or loose)
(3) door seals and sealing surfaces
(d) The oven should not be adjusted or repaired by anyone other than a properly
qualified microwave service technician trained by the manufacturer.
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CORRECT DISPOSAL OF THIS PRODUCT
(WASTE ELECTRICAL & ELECTRONIC EQUIPMENT)
(Applicable in countries with separate collection systems)
This marking on the product, accessories or literature indicates that the product and
its electronic accessories (e.g. charger, headset, USB cable) should not be disposed
of with other household waste at the end of their working life. To prevent possible
harm to the environment or human health from uncontrolled waste disposal, please
separate these items from other types of waste and recycle them responsibly to
promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this
product, or their local government office, for details of where and how they can take
these items for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions
of the purchase contract. This product and its electronic accessories should not be
mixed with other commercial wastes for disposal.
INSTALLATION & WIRING INSTRUCTIONS
IMPORTANT NOTE :
The mains lead on this equipment is supplied with a mouldedplug
incorporating a fuse. The value of the fuse is indicated on the pin face of the
plug and, if it requires replacing, a fuse approved to BS1363 of the same
rating must be used.
Never use the plug with the fuse cover omitted if the cover is detachable. If
a replacement fuse cover is required, it must be of the same colour as the
pin face of the plug. Replacement covers are available from your Dealer. If
the fitted plug is not suitable for the power points in your house or the cable
is not long enough to reach a power point, you should obtain a suitable
safety approved extension lead or consult your Dealer for assistance.
However, if there is no alternative to cutting off the plug, remove the fuse
and then safely dispose of the plug. Do not connect the plug to a mains
socket, as there is a risk of shock hazard from the bared flexible cord.
WIRING INSTRUCTIONS
01 SAFETY INFORMATION
Buffalo will charge a repair fee for replacing an accessory or repairing a cosmetic
defect if the damage to the unit and/or damage to or loss of the accessory was
caused by the customer. Items this stipulation covers include:
(a) A Dented, Scratched, or Broken Door, Handle, Out-Panel, or Control Panel.
(b) A Broken or missing Tray, Guide Roller, Coupler, or Wire Rack.
• Use this appliance only for its intended purpose as described in this
instruction manual. Warnings and Important Safety Instructions in this
manual do not cover all possible conditions and situations that may occur.
It is your responsibility to use common sense, caution, and care when
installing, maintaining, and operating your appliance.
• Because these following operating instructions cover various models,
the characteristics of your microwave oven may differ slightly from those
described in this manual and not all warning signs may be applicable. If you
have any questions or concerns, contact your nearest service centre.
• This microwave oven is supposed for heating food. It is intended for
domestic home-use only. Do not heat any type of textiles or cushions filled
with grains, which could cause burns and fire. The manufacturer cannot be
held liable for damage caused by improper or incorrect use of the appliance.
• Failure to maintain the oven in a clean condition could lead to deterioration of
the surface that could adversely affect the life of the appliance and possible
result in a hazardous situation.
WARNING THIS APPLIANCE MUST BE EARTHED.
This appliance must be earthed. In the event of an electrical short circuit,
earthing reduces the risk of electric shock providing an escape wire for the
electric current.
The appliance is equipped with a mains lead which includes an earth wire
for connecting to the earth terminal of your mains plug. The plug must be
plugged into a socket that is properly installed and earthed.
The wires in this mains lead are coloured in accordance with the
following code:
• Green-and yellow : Earth
• Blue : Neutral
• Brown : Live
• As the colours of the wires in the mains lead of this appliance may not
correspond with the coloured markings indentifying the terminals in your
plug, proceed as follows.
• Connect the green-and yellow wire to the terminal in the plug marked
with the letter E or the earth symbol ( ) or coloured green or greenand-yellow.
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COOKING INSTRUCTIONS ON FOOD PACKAGING
• Connect the blue wire to the terminal marked with the letter N or
coloured black.
Consult a qualified electrician or service technician if in doubt about any
of these instructions.
Microwave Symbols
This symbol has been introduced for your benefit when cooking or
reheating packaged food.
The manufacturer of this oven will not accept any liability for damage to
persons or material for non observance of these requirements.
There are no user+serviceable parts inside the oven and if the mains
lead of this appliance is damaged, it must only be replaced by qualified
service personnel approved by the manufacturer because special tools
are required.
WARNING : Ensure that the plug and
power cord are not damaged before
use.
If you have any reason to remove the
moulded plug from this appliance,
immediately remove the fuse and
dispose of the plug.
Do not connect the plug to a mains
socket under any circumstances as
there is a danger of electric shock.
WARNING
GREEN AND
YELLOW
CIRCUITS : Your microwave oven
BLUE
should be operated on a separate
circuit from other appliances. Failure to
do this may cause the circuit breaker to
trip, the fuse to blow, or the food to
cook more slowly.
WARNING
1100W
Packaged food is also, increasingly, using a microwave symbol similar to
the one below.
13 AMP
FUSE
Symbol on food packaging, the cooking instructions are based on either the
IEC Power Output Rating, or the Reheating Categories A, B, C, D or E.
BROWN
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COOKING INSTRUCTIONS
The IEC Power Output rating is an internationally standardised rating, so all
microwave manufacturers now use the same method of measuring power
output.
If food packaging gives cooking instructions based on IEC Power ratings,
set cooking times according to the IEC Power of your oven.
If you want to cook some food.
1. Place the food in the oven.
Select the power level by pressing the Power Level button
once or more time.
2. Select the cooking time by pressing the Number buttons as
required (Max : 30 min).
3. Press Start button.
Result: Cooking starts. The oven beeps four times when
cooking is over.
If you want to defrost some food.
1. Place the frozen food in the oven.
Press the Defrost button.
For example :
If the heating instructions are 3 minutes on HIGH for a D category oven,
then you will need to set your timer for less than 3 minutes on HIGH for the
GK642 (E category).
02 QUICK LOOK-UP GUIDE
For example :
If the cooking instructions are based on a 650 W oven, then you will need to
reduce some cooking time for the GK642 (1100 W) Ready meals are now
very convenient and popular. These are meals which are already prepared
and cooked by the food manufacturer, and then frozen, chilled or vacuum
sealed for long life.
Increasingly, heating times for such ready meals are being based on the
Heating Categories A, B, C, D and E.
On this instance, simply match the heating category of your oven to the
instructions on the food package, and set your timer accordingly.
quick look-up guide
2. Select the cooking time by pressing the Number buttons as
required (Max : 30 min).
Always remember that cooking instructions are intended only as a
guide. If you have followed the instructions and the food is still not
piping hot throughout, simply return it to the oven and cook it until it is.
3 Press Start button.
Result: Cooking starts. The oven beeps four times when
cooking is over.
If you want to adjust the cooking time.
Leave the food in the oven.
Press +30s once or more times for each extra 30 seconds.
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oven features
OVEN
CONTROL PANEL
1
3
2
4
1
2
7
3
4
5
6
7
8
9
8
9
5
10
1. HANDLE
6. DOOR
2. VENTILATION HOLES
7. CERAMIC PLATE
3. OVEN LAMP
8. SAFETY INTERLOCK HOLES
1. DISPLAY
7. DEFROST BUTTON
4. DISPLAY
9. CONTROL PANEL
2. POWER LEVEL BUTTON
8. SOUND BUTTON
3. NUMBER BUTTONS
9. DOUBLE QUANTITY BUTTON
4. CHECK BUTTON
10. +30S BUTTON
5. PROGRAMME BUTTON
11. START BUTTON
5. DOOR LATCHES
11
6
6. STOP/CANCEL BUTTON
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oven use
COOKING/REHEATING
The following simple procedure enables you to check that your oven is working correctly
at all times.
The following procedure explains how to cook or reheat food.
ALWAYS check your cooking settings before leaving the oven unattended.
First, place a bowl of water on the ceramic plate. Then, close the door.
First, place the food in the centre of the ceramic plate. Then, close the door.
1. Select the power level by pressing the Power Level button
once or more time.
1. Select the power level by pressing the Power Level button
once or more time.
2. Select the cooking time by pressing the Number buttons as
required ( Max : 30 min).
Press Start button.
Result: The oven heats the water for 4 or 5 minutes. The
water should then be boiling.
2. Select the cooking time by pressing the Number buttons as
required (Max : 30 min).
Result: The oven light comes on.
3. Press the Start button.
Result: Cooking starts. The oven beeps four times when
cooking is over.
The oven must be plugged into an appropriate wall socket. The ceramic plate must
be in position in the oven. If a power level other than the maximum is used, the
water takes longer to boil.
Auto energy saving function.
If you do not select any function when appliance is in the middle of setting or
operating with temporary stop condition, function is canceled and the display will be
turned off after 10 minutes.
Oven Lamp will be turned off after 5 minutes with door open condition.
03 OVEN FEATURES & OVEN USE
CHECKING THAT YOUR OVEN IS OPERATING
CORRECTLY
Never switch the microwave oven on when it is empty.
USING THE START AND +30 SEC BUTTON
This button offers a convenient way to heat food in 30 seconds increments at the High
power level.
1. Press the +30s button once for each 30 sec. Press the
Start button.
For example, press +30s button twice for one minute. The
time will display, and press Start button.
2. Add Seconds to a program in progress by pressing the
+30s button for each 30 sec. you want to add.
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USING THE STOP/CANCEL BUTTON
The Stop/Cancel button allows you to clear instructions you have entered. It also allows
you to pause the oven’s cooking cycle, so that you can check the food.
MULTI-STAGE COOKING
You can stop cooking at any time to check the food.
1. Press the Power Level button to select the power. By
pressing the Power Level button repeatedly, you can select
the power level - HI, MED, or LO.
1. To pause the oven during cooking, press Stop/Cancel
button once.
2. Use the Number buttons to enter the cooking time. You can
set a time from one second to 30 minutes.
To set a time over one minute, enter the second as well.
For example, to set 10 minutes, enter 1, 0, 0, 0.
2. To restart, press Start button.
To correct a mistake you have just entered, press Stop/Cancel button once, then
re-enter the instructions.
3. Repeat step 1 and 2 for II or III stage cooking.
To cancel cooking setting during cooking, Press Stop/Cancel button twice.
SETTING COOKING TIME AND POWER LEVEL
4. Press the Start button to begin cooking.
ONE STAGE COOKING.
You can stop cooking at any time to check the food.
1. Press the Power Level button to select the power. By
pressing the Power Level button repeatedly, you can select
the power level - HI, MED, or LO.
2. Use the Number buttons to enter the cooking time. You can
set a time from one second to 30 minutes.
To set a time over one minute, enter the second as well.
For example, to set 10 minutes, enter 1, 0, 0, 0.
3. Press the Start button to begin cooking.
POWER LEVELS
You can choose among the power levels below.
Power level
Percentage
Power level
HIGH (HI)
100 %
1100 W
MEDIUM (MED)
70 %
770 W
LOW (LO)
50 %
550 W
DEFROST
30 %
330 W
If you select higher power level, the cooking time must be decreased.
If you select lower power level, the cooking time must be increased.
The maxium allowable cooking time is 30 min. If the time exceed 30 min, the display
will show “E3”, then press Stop/Cancel button and repeat the steps.
The maxium allowable cooking time is 30 min. If the time exceed 30 min, the display
will show “E3”, then press Stop/Cancel button and repeat the steps.
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USING RAPID DEFROST BUTTON
MEMORY PROGRAMMING
The defrost time and power level are set automatically. You simply select the programme
and the weight.
ONE STAGE COOKING.
Use only dishes that are microwave-safe.
1. Upon pressing the Program button, the oven will enter
Program mode. The display will be cleared.
First, place the frozen food in the centre of the ceramic plate and close the door.
2. Using the Number buttons, enter the program number from
1 to 20.
2. Press the Number buttons to set the defrosting time. You
can set a time from one second to 30 minutes.
3. Press the Start button.
The maxium allowable cooking time is 30 min. If the time exceed 30 min, the display
will show “E3”, then press Stop/Cancel button and repeat the steps.
3. Then, press the Power Level button to select power. By
pressing the Power Level button repeatedly, you can select
the power level - HI, MED, or LOW.
4. Use the Number buttons to enter the cooking time. You
can set a time from one second to 30 minutes. To set a time
over one minute, enter the seconds as well.
For example, to set 10 minutes, enter 1, 0, 0, 0.
03 OVEN FEATURES & OVEN USE
1. Press the Rapid Defrost button.
5. Press the Program button to complete setting the memory.
The display will show ‘0’.
The maxium allowable cooking time is 30 min. If the time exceed 30 min, the display
will show “E3”, then press Stop/Cancel button and repeat the steps.
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MULTI-STAGE COOKING.
USING MEMORY PROGRAMMING.
Press the Number buttons to select user-programmed memory functions (please
refer to memory programming) from 1 to 20.
Press the Start button.
1. Upon pressing the Program button, the oven will enter
Program mode. The display will be cleared.
If TIME DEFROST include in STAGE COOKING, it works at first.
2. Using the Number buttons, enter the program number from
1 to 20.
If you want to change program, just reset MEMORY PROGRAMMING.
USING THE CHECK BUTTON
3. Then, press the Power Level button to select power. By
pressing the Power Level button repeatedly, you can select
the power level - HI, MED, or LOW.
Confirming the cooking time and Power Level in each memory program.
4. Use the Number buttons to enter the cooking time. You
can set a time from one second to 30 minutes. To set a time
over one minute, enter the seconds as well.
For example, to set 10 minutes, enter 1, 0, 0, 0.
5. Repeat step 3 and 4 for II or III stage memory memory
proggramming.
6. Press the Program button to complete setting the memory.
The display will show ‘0’.
The maxium allowable cooking time is 30 min. If the time exceed 30 min, the display
will show “E3”, then press Stop/Cancel button and repeat the steps.
1. Clear all operations by pressing the Stop/Cancel button.
Press the CHECK button to enter Check mode.
2. Using the Number buttons, enter the program number from
1 to 20.
For example, suppose you press ‘5’, for the Memory
Program 5 which is HI Power Level, I Stage cooking with a
time of 6 minutes and 30 seconds, 6:30.
First, ‘5’ will be displayed. but will change to show the
“6:30”.
3. After one second, the display will clear automatically.
If you want to check other Memory Programs, just enter the
Memory Program numbers.
4. Press the Stop/Cancel botton to exit the Check mode.
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Reading each Memory Program’s Cycle Counter
1. Clear all operations by pressing the Stop/Cancel button.
Press the CHECK button to enter Check mode.
RESETTING THE MEMORY PROGRAM CYCLE
COUNTER
1. Clear all operations by pressing the Stop/Cancel button.
The display will show ‘:0”.
2. Hold the Number ‘0’ and then press Rapid Defrost
button.
The microwave will emit a Beep sound confirming the reset
operation.
If you press clearing number, The display will show ‘0’.
3. After one second, the display will clear automatically. If
you want to check other Memory Programs, just enter the
Memory Program numbers.
3. Press the Stop/Cancel button to exit the Resetting mode.
4. Press the Stop/Cancel button to exit the Checking mode.
SETTING THE SOUND
As the display uses units of 10, the cycle counts are approximate. The cycle count
displayed increases every ten cycles.
For example, if the cycle count were 90-99, “9” would be displayed, The “9” would
change to “10” on the 100th cycle. The cycle counter function has a limit of 99,990
cycles. Once that number is exceeded, the cycle counter will automatically clear and
start again from “0”.
03 OVEN FEATURES & OVEN USE
2. Press the Start button, and then press any Number button,
from 1 to 20, and the number of cycles for that particular
Memory Program will be displayed. The cycle count is
displayed in units of 10.
For example, if Memory Program 5 has been used
100 times, the display will show ‘10’.
1. Press the SOUND button to adjust sound volume. The
basic sound volume is “LO” and when you press the
SOUND button repeatedly, the sound volume changes in
the following order - MED, HI, OFF, LO one by one.
2. Press the Start button to exit Sound mode. The display will
show “:0”.
Indicator
HI
MED
LO
Blank
Sound
Loud
Middle
Low
Off
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cookware guide
USING THE DOUBLE QUANTITY BUTTON
1. Press the Double Quantity button.
2. By using the Number buttons, enter the Memory Program
number from 1 to 20.
For example, suppose you press ‘5’ button, for Memory
Program 5 which is HI Power Level, I Stage cooking with a
time of 6 minutes and 30 seconds, 6:30.
3. Press the Start button.
The Memory Program then operates for double the userprogrammed time, which in this case makes 13 minutes.
(6.30 x 2 = 13)
The maximum allowable cooking time is 30 min. If doubling the programmed time
exceeds the maximum allowable cooking time, the display will show “E3”, then press
Stop/Cancel button.
To cook food in the microwave oven, the microwaves must be able to penetrate the food,
without being reflected or absorbed by the dish used.
Care must therefore be taken when choosing the cookware. If the cookware is marked
microwave-safe, you do not need to worry. The following table lists various types of
cookware and indicates whether and how they should be used in a microwave oven.
Cookware
Microwavesafe
Aluminum foil
✓✗
China and
earthenware
✓
Disposable
polyester
cardboard dishes
Fast-food
packaging
✓
• Polystyrene cups
containers
• Paper bags or
newspaper
• Recycled paper or
metal trims
✓
Comments
Can be used in small quantities to protect
areas against overcooking. Arcing can occur
if the foil is too close to the oven wall or if too
much foil is used.
Porcelain, pottery, glazed earthenware and
bone china are usually suitable, unless decorated with a metal trim.
Some frozen foods are packaged in these
dishes.
✗
Can be used to warm food. Overheating may
cause the polystyrene to melt.
May catch fire.
✗
May cause arcing.
• Oven-to-tableware
✓
Can be used, unless decorated with a metal
trim.
• Fine glassware
✓
• Glass jars
✓
Can be used to warm foods or liquids.
Delicate glass may break or crack if heated
suddenly.
Must remove the lid. Suitable for warming
only.
Glassware
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cooking guide
Cookware
Microwavesafe
Reheating Dish Entrees
Comments
Use the power levels and times in this table as a guide lines for reheating.
Metal
Food
✗
✗
May cause arcing or fire.
✓
For short cooking times and warming. Also
to absorb excess moisture.
✗
May cause arcing.
• Containers
✓
• Cling film
✓
Particularly if heat-resistant thermoplastic.
Some other plastics may warp or discolour
at high temperatures. Do not use Melamine
plastic.
Can be used to retain moisture. Should not
touch the food. Take care when removing
the film as hot steam will escape.
Only if boilable or oven-proof. Should not be
airtight. Prick with a fork, if necessary.
Can be used to retain moisture and prevent
spattering.
Plated Meal
(Chilled)
Paper
• Plates, cups,
napkins and
Kitchen paper
• Recycled paper
Plastic
• Freezer bags
✓✗
Wax or greaseproof paper
✓
✓ : Recommended
✓✗
: Use Caution
✗ : Unsafe
Serving Size
Power
Time (min.)
350 g
MEDIUM
6½-7
Instructions
Plate a meal of 2-3 chilled components on a ceramic dish.
Reheat covered. Stand for 3 minutes.
300 g
MEDIUM
4½-5½
Chicken Curry &
Rice (Chilled)
Instructions
Plate a meal of 2 chilled components on a ceramic dish (e.g.
rice and curry). Reheat covered. Stand for 3 minutes.
350 g
HIGH
4-5
Pasta with
Sauce (Chilled)
Instructions
Put pasta (e.g. spaghetti or egg noodles) into a deep ceramic
plate. Reheat covered. Stir during reheating. Stand for 3 minutes.
350 g
MEDIUM
4½-5½
Filled Pasta in
Sauce (Chilled)
Instructions
Put filled pasta (e.g. ravioli, tortellini) in a deep ceramic plate.
Reheat covered. Stir occasionally during reheating. Stand for 3
minutes.
400 g
HIGH
4½-5½
Lasagne (Chilled)
Instructions
Put the chilled lasagne (pre-cooked product) widthways in the
centre of table. Reheat covered. Stand for 3 minutes.
400 g
MEDIUM
5½-6½
Bechamel
Potatoes
Instructions
(Chilled)
Put bechamel potatoes (pr-cooked product) widthways in the
centre of table. Reheat covered. Stand for 3 minutes.
500 g (2x250 g)
HIGH
5-6
Baked Potatoes
(Ready Cooked
Instructions
and Chilled)
Pierce film and put potatoes on a flat ceramic plate. Stand for
2-3 minutes.
04 COOKWARE GUIDE & COOKING GUIDE
• Dishes
• Freezer bag twist
ties
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Reheating Soup and Stew
Cooking Breakfast
Use the power levels and times in this table as a guide lines for reheating.
Use the power levels and times in this table as a guide lines for cooking.
Food
Soup (Chilled)
Stew (Chilled)
Bean Stew
(Canned)
Soup (Frozen)
Serving Size
Power
Time (min.)
250 g
HIGH
3-3½
Instructions
Pour into a deep ceramic plate. Reheat covered. Stir during
reheating. Stand for 2-3 minutes.
250 g
MEDIUM
4-4½
500 g
5½-6
Instructions
Pour into a deep ceramic plate or bowl.
Reheat covered. Stir during reheating. Stand for 2-3 minutes.
350 g
MEDIUM
3½-4
Instructions
Pour into a deep ceramic plate or bowl. Reheat covered. Stir
during reheating. Stand for 2-3 minutes.
1000 g
HIGH
20-22
Instructions
Pour into a glass pyrex dish with lid. Reheat covered. Stir during
reheating. Stand for 2-3 minutes.
Food
Bacon (Chilled)
Scrambled Eggs
Baked Beans
(Canned)
Serving Size
Power
Time (min.)
20 g (2 slices)
HIGH
ca. 1½
Instructions
Put bacon slices on kitchen paper on a flat ceramic plate. Stand
for 1 minutes.
2 eggs
LOW
ca. 2½
Instructions
Beat eggs, add salt and 2 tbsp. milk. Put in a deep ceramic
plate. Stir several times during cooking. Stand for 1 minutes.
250 g
MEDIUM
2½-3½
Instructions
Put the beans in a deep ceramic plate. Reheat covered. Stir
during reheating. Stand for 1-2 minutes.
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Reheating Snacks
Defrosting and Cooking Desserts
Use the power levels and times in this table as a guide lines for cooking.
Use the power levels and times in this table as a guide lines for cooking.
Food
Cheese Burger
(Chilled)
Hot Dog (Chilled)
Pizza; Slice
(Chilled)
Meat &
Vegetable Wrap
(Chilled)
Quiche/Pie
(Chilled)
Croissants
Power
Time (min.)
150 g (1 pc)
HIGH
1-1½
Instructions
Put burger on kitchen paper on a ceramic plate. Stand for
2-3 minutes.
150 g (1 pc)
LOW
3-3½
Instructions
Put burger on kitchen paper on a ceramic plate. Stand for
2-3 minutes.
125 g (1 pc)
MEDIUM
1½
Instructions
Put hot dog on kitchen paper on a ceramic plate. Stand for
2-3 minutes.
100 g
LOW
1½-2
Instructions
Put the pizza slice on a kitchen paper on ceramic plate. Stand
for 1-2 minutes.
200 g
MEDIUM
2-2½
Instructions
Put the chilled wrap (filled pastry roll) on kitchen paper on a
ceramic plate. Stand for 1-2 minutes.
150 g
MEDIUM
2-2½
Instructions
Put quiche on kitchen paper on a ceramic plate. Stand for 2-3
minutes.
60 g (2 pcs)
MEDIUM
½-1
Instructions
Put the croissants on kitchen paper on a ceramic plate. Serve
croissants directly after warming.
Food
Berries in Sauce
Yeast Dumplings
with Jam Filling
Serving Size
Power
Time (min.)
250 g
MEDIUM
6-6½
Instructions
Put frozen fruits in a glass pyrex bowl with lid. Reheat covered.
Stir once during standing time. Stand for 2-3 minutes.
300 g (2 pcs)
MEDIUM
4½-5
Instructions
Put frozen yeast dumplings (pre-cooked) side by side in a glass
pyrex bowl with lid. Moist the top of them with cold water. Cook
covered. Stand for 2-3 minutes.
Defrosting Bread and Cake
Use the power levels and times in this table as a guide lines for cooking.
Food
Baguettes
Bread rolls
Fruit cake
Cream cake roll
Serving Size
Power
Time (min.)
150 g (1 pc)
DEFROST
ca. ½
Instructions
Put the baguette widthways on kitchen paper in the oven. Stand
for 3-5 minutes.
50 g (4 pcs)
DEFROST
ca. 3
Instructions
Put the rolls side by side on kitchen paper in the oven. Stand for
3-5 minutes.
120 g (1 pc)
DEFROST
3-3½
Instructions
Put the piece of cake on a ceramic plate. Stand for
5-10 minutes.
100 g (1 pc)
DEFROST
ca. 1
Instructions
Put the piece of cake on a ceramic plate. Place plate in the
centre of table. Let stand until cream is totally defrosted. Stand
for 10-20 minutes.
04 COOKWARE GUIDE & COOKING GUIDE
Cheese Burger
(Frozen)
Serving Size
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troubleshooting
Smoke and bad smell when initial operating.
• It’s a temporary condition by new component heating. Smoke and smell will
disappear completely after 10 minutes operation.
To remove smell more quickly, please operate microwave oven with putting lemon
formation or lemon juice in the cabinet.
If you have any of the problems listed below try the solutions given.
This is normal.
• Condensation inside the oven.
• Air flow around the door and outer casing.
• Light reflection around the door and outer casing.
• Steam escaping from around the door or vents.
The oven does not start when you press the start button.
• Is the door completely closed?
The food is not cooked at all.
• Have you set the timer correctly?
• Is the door closed?
• Have you overloaded the electric circuit and caused a fuse to blow or a breaker to be
triggered?
The food is either overcooked or undercooked.
• Was the appropriate cooking length set for the type of food?
• Was an appropriate power level chosen?
Door opening starts automatic operation of fan for 5 minutes.
When placing or removing food items, as soon as the door is opened the lamp
and fan will start automatically. The automatic starting of the fan is intentional, so
no sevice call is required. The fan will automatically upon closing the door after 5
minutes.
If the above guidelines do not enable you to solve the problem, contact your local
dealer or Buffalo after-sales service.
If you have any questions or comments relating to Buffalo products, please contact the
Buffalo customer care centre.
Buffalo. Fourth Way, Avonmouth, Bristol, BS11 8TB, The United Kingdom.
Tel : 0845 146 2887
The oven causes interference with radios or televisions.
• Slight interference may be observed on televisions or radios when the oven
is operating. This is normal. To solve this problem, install the oven away from
televisions, radios and aerials.
The light bulb is not working.
• The Light bulb should not be replaced in person for safety reasons. Please contact
nearest authorised Buffalo customer care, to arrange for a qualified engineer to
replace the bulb.
Sparking and cracking occur inside the oven (arcing).
• Have you used a dish with metal trimmings?
• Have you left a fork or other metal utensil inside the oven?
• Is aluminum foil too close to the inside walls?
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technical specifications
MEMO
Buffalo strives to improve its products at all times. Both the design specifications and
these user instructions are thus subject to change without notice.
Model
GK642
230 V ~ 50 Hz
Power consumption
Microwave
1600 W, 7 A
Output power
230 V : 1050 W (IEC-705)
240 V : 1100 W (IEC-705)
(4 power levels including defrost)
Operating frequency
2450 MHz
Cooling method
Cooling fan motor
Dimensions (W x H x D)
Outside
Oven cavity
517 x 297 x 412 mm
336 x 225 x 349 mm
Volume
26 liter
Weight
Net
Gross
17.5 kg
19.0 kg
05 TROUBLESHOOTING & TECHNICAL SPEC
Power source
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MEMO
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MEMO
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MEMO
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MEMO
2014-08-18 �� 5:27:41
If you have any problems with your machine please contact
Buffalo Support Center
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