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Refrigerator
User Manual
RB21KMF*
Free standing appliance
Fruits and vegetables should be placed in the vegetable & fruit drawer so as to
keep their moisture and freshness.
Tropical fruits like bananas and pineapples are not suitable for storage in
refrigerator. Objects that have strict requirement for temperature, such as blood
serum, vaccine and academic materials, should not be stored in refrigerator.
If you need to store a large amount of food, make ice, or require power cool &
power freeze, you may remove the freezer drawer and place frozen food directly
on evaporator plate.
NOTE
When ambient temperature is lower than 10ºC, the fridge is subject to electric
heating.
Maintenance and Cleaning
Internal accessories
Remove all shelves, door racks, baskets, covers and drawers. Use soft cloth
dipped in warm water or mild detergent (for cleaning kitchenware) to wipe
them clean. When detergent has been used, it must be wiped clean with water,
followed by drying with dry cloth.
Door seal strip
Liquid like oil or soy sauce sticking to door seal strip for a long time can easily
damage the seal, especially the seal on bottom of upper door, which should be
carefully cleaned. A piece of chopstick wound with cotton strip can be used to
clean the grooves. When the seal strip is to be inserted into the groove after
cleaning, first secure the four corners and then insert it section by section.
How to defrost the fridge
When frost layer gets thicker inside the fridge, refrigeration effect of the fridge may be impaired. In this case,
you may remove all food from the fridge, pack them properly, unplug the power supply and clean up water with
soft cloth after frost thaws. Plug on again the power cord and set up temperature for operation. Generally, the
freezer should be defrosted once or twice a year.
NOTE
1. The power plug of fridge must be removed before defrosting. Completely clean the freezer after
defrosting;
2. Generally, the best time for defrosting is when the freezer is empty or nearly empty.
3. Never use metal or sharp tools to defrost the freezer in order to avoid damage to the fridge.
4. Never use an electric heater to defrost the fridge.
Precautions for cleaning interior and exterior of the fridge
ꞏ
Power plug must be pulled off the outlet before cleaning. The plugging on/off interval should be more than
five minutes.
ꞏ
No water should be allowed to enter the light box during cleaning.
ꞏ
Clean with soft towel dipped in warm water or mild detergent before cleaning it up with dry cloth.
ꞏ
Do not clean with cleaner containing abrasive (such as toothpaste), acid substance, chemical solution (such
as alcohol) or polishing agent.
ꞏ
To ensure operational performance of the fridge, clean it regularly.
NOTE
Check the following after maintenance: check the power cord for cracks and damage; check the power
plug which should be inserted into the outlet reliably; check the power plug for abnormal heating.
Disassembly of accessories
1.Refrigerator shelf
-
Position of shelf can be changed according to height of container.
2.Freezer drawer
-
Drawer can be pulled out to the stopper. It can be removed after tilting upward.
3.Vegetable & fruit drawer and its cover
-
Pull out the basket by lifting the front side of the basket cover.
NOTE
Do not pull with force during disassembly in order to avoid damaging the fridge.
4.Egg tray, multi-purpose tray and bottle guard
-
Lift up to remove them.
5.Vegetable & fruit drawer
-
The drawer can keep moisture and freshness of fruits and vegetables as
the enclosed type can prevent cooled air from direct contact with fruits and
vegetables.
-
Applicable for storage of vegetables and fruits.
6.Ice tray
-
Pour cold boiled water or beverage into clean ice tray and put it into freezer.
-
To remove the ice cubes, just twist the ice tray. Never bend the tray up and
down.
Troubleshooting
Symptoms Remedies
No refrigeration,
not chilling
enough or over-
chilling
Fridge not working,
no refrigeration
-
Power plug not properly plugged in
-
No power supply, failure of power socket
-
Fridge power cut off during operation and reconnected not more
than five minutes later
Fridge not too cold
-
Fridge door not properly shut
-
Fridge close to heat source or exposed to direct sunlight
-
Poor ventilation around fridge, causing slow heat dissipation
Fridge working for
a long time
-
Frequent opening of fridge door or the door not properly shut
-
Poor ventilation around fridge, causing slow heat dissipation
-
A large amount of food put to storage at a time, leaving little space
for chilling air ventilation
Refrigerator
chamber too cold,
food frozen
-
Refrigerating temperature set too low, higher temperature setting for
refrigerator chamber recommended
-
Food stored in contact with chilling source on back wall of
refrigerator chamber
Symptoms Remedies
Both sides
heated,
producing off-
odour
Front box frame or
side plate of fridge
heated
-
To prevent water condensation at the box frame, there configured
anti-condensation tubes inside the box frame which is not faulty but
normal when the fridge is heated during operation.
-
Heat radiator (condenser) is mounted in either side of the fridge. It is
normal to have heated sides.
Off-odour inside
fridge
-
Food with particular smell should be sealed in airtight package.
-
Check for rotten food.
-
Fridge interior needs to be cleaned.
Fridge
producing
strange noise
Fridge not seating
on a level surface
-
Slightly sloping of the fridge will make operating noise higher. You
may turn the leveling leg beneath the fridge body to make the fridge
level.
Sound of airflow or
running water
-
Only through flow of refrigerant in pipeline can quickly lower the
temperature inside fridge. Refrigerant is in either gas or liquid form.
It produces slight noise when flowing.
Low hum occurring
-
Compressor is working. The hum is a little higher at starting. High
performance fridge is a little more noisy due to powerful compressor.
Sound of "click" or
"Boom"
-
When you start or stop the refrigerator, the main control board, start
relay, overheat protector and other electrical elements produce
sounds like "click" or "Boom" due to frequent pick-ups or offs.
Sound of cracking
or “Poop”
-
Fridge produces sound of cracking due to temperature change that
causes cracking of frozen food or due to thermal expansion and
contraction of evaporator and pipeline.
Condensation/
leak of water/
frosting/icing
Condensate on
middle beam and
box frame
-
It occurs when ambient temperature is high.
-
Wipe it dry with soft cloth.
Condensate in
vegetable & fruit
drawer
-
When fridge door is kept open for quite a time.
-
Liquid food is stored without cover.
Frost thaws and
overflows inside
box
-
Water outlet blocked
-
Remove blockage with drain plug or similar tool
Frosting or icing
on back wall inside
fridge
-
Refrigeration pipeline in back wall of fridge is below zero Celsius
when the fridge is in operation. When humidity in the chamber is
higher, frosting or icing on back wall occurs. When refrigerator stops
working, automatic defrosting is activated, resulting in dewing and
water droplets.
-
Cleaning once a month is recommended.
-
Food or containers should not be placed against the back wall.
NOTE
The fridge reduces internal temperature via cycles such as compressor operation and refrigerant
circulation, thus guaranteeing freshness and nutrition of food stored in fridge. When the fridge is working,
you may hear some slight noise, which is normal. Please feel relieved in using the fridge.
NOTE
Ambient temperature is high in summer and the fridge dissipates heat slowly, which causes the
compressor to operate a longer time. We recommend users to set refrigerating temperature at 5
℃
to 7
℃
.
Ambient temperature is low in winter and its difference from internal temperature of fridge decreases,
which could make you feel that the fridge is not chilling enough, and it is a normal phenomenon. We
recommend users to set refrigerating temperature at 3
℃
to 4
℃
.
DA68-03499B-01
Contact SAMSUNG WORLD WIDE
If you have any questions or comments relating to Samsung products, please contact the
SAMSUNG customer care center.
Country Contact Center Web Site
AUSTRALIA 1300 362 603 www.samsung.com/au/support
COLOMBIA
Bogotá en el 600 12 72
Sin costo en todo el pais 01 8000 112 112
Y desde tu celular #726
www.samsung.com/co/support
EIRE 0818 717100 www.samsung.com/ie/support
HONG KONG 3698 4698
www.samsung.com/hk/support (Chinese)
www.samsung.com/hk_en/support
(English)
INDIA
1800 40 SAMSUNG (Toll Free)
1800 40 7267864 (Toll Free)
www.samsung.com/in/support
BANGLADESH
0961-2300300
0800-0300300 (Toll free)
www.samsung.com/support
MALAYSIA
1800-88-9999
603-77137477 (Overseas contact)
www.samsung.com/my/support
NEW ZEALAND 0800 726 786 www.samsung.com/nz/support
PANAMA 800-0101
www.samsung.com/latin/support
(Spanish)
www.samsung.com/latin_en/support
(English)
PHILIPPINES
1-800-10-726-7864 [ PLDT Toll Free ]
1-800-8-726-7864
[ Globe Landline and Mobile ]
02- 422-2111 [ Standard Landline ]
www.samsung.com/ph/support
SINGAPORE 1800-SAMSUNG(726-7864) www.samsung.com/sg/support
SOUTH AFRICA 0860 SAMSUNG (726 7864) www.samsung.com/support
UK 0330 SAMSUNG (7267864) www.samsung.com/uk/support
VIETNAM 1800 588 889 www.samsung.com/vn/support
MYANMAR +95-01-2399-888 www.samsung.com/th/support
SRI LANKA 0115900000 www.samsung.com/support
PAKISTAN 0800-Samsung (72678) www.samsung.com/pk/support
Schematic Diagram of Refrigerator
2
LED lamp cover
Refrigerator shelf
Vegetable & fruit drawer
Freezer drawer
Vegetable & fruit
drawers cover
Egg tray
Door light switch
Multi-purpose tray
Bottle guard
Cool pack(optional)
Food-storing guideline
It's better to pack food with preservative bag (wrap) or seal food inside a
container with a cover so as to prevent the food from dehydrating or tainting of
odor.
Hot food and beverage should be left for cooling down to room temperature
before you put it into the fridge, which can reduce power consumption.
Cooked food should be stored separately from raw food.
Food shall not be arranged too tensely. Sufficient space shall be left to facilitate
circulation of cooling air.
NOTE
Do not place food close to temperature probe.
Food and container should not be placed against the back plate.
It's better to cut food into small pieces for storage.
Washable food like fruits and vegetables should be better cleaned and dried
before you put them to storage.
Welcome to buy Samsung refrigerator!
Before operating the refrigerator, carefully read this manual and keep it properly for future
reference.
Important Safety Symbols
WARNING
Dangerous or unsafe operation may lead to severe personal injury or death.
CAUTION
Dangerous or unsafe operation may lead to slight personal injury or property damage.
CAUTION
Do NOT attempt.
Do NOT disassemble.
Do NOT touch.
Follow directions carefully.
Unplug the power plug from the wall socket.
Make sure the refrigerator is grounded to prevent electric shock.
Call the contact center for help.
These warning symbols are here to prevent injury to you and others. Please follow this instructions
strictly.
WARNING
ꞏ
R600a is a natural gas that is operational under multiple circumstances. It is flammable, so take care not to
damage any device of the chilling circuit when transporting and installing the appliance.
ꞏ
Refrigerant squirting out of the pipeline is flammable and can cause eye injury. In case of any leak, no
naked fire or potential fire source is allowed, in addition to several minute ventilation of the room where the
appliance is located.
ꞏ
To prevent generation of flammable gas when the chilling circuit leaks, the room size for placement of this
appliance shall be determined according to the amount of refrigerant used.
ꞏ
Do not start the appliance when any sign of damage is displayed. Please consult your dealer in case of any
questions.
ꞏ
One more cubic meter is required for any additional 8g of R600a refrigerant.
ꞏ
The dose of refrigerant is shown on the nameplate inside the refrigerator.
ꞏ
Make sure to protect the environment when you discard packing materials of the appliance.
Severe warning signs
WARNING
ꞏ
Do not plug several appliances into the same multiple-functional socket.
- Failure to do so leads to fire hazard.
ꞏ
Avoid placing the power plug very close to the back of refrigerator so as to ensure that the power plug is not
crushed or damaged.
- Broken power plug can cause fire due to overheating.
ꞏ
Do not allow water to splash or flow onto the refrigerator.
- Fire or electric shock hazard could be caused.
ꞏ
Do not place on power cord heavy articles or heat-generating appliances like microwave stove and electric
cooker.
- Short circuit or fire could be caused.
Safety Precautions
ꞏ
Do not plug/unplug the power plug with a wet hand.
- Failure to do so can cause electric shock hazard.
ꞏ
Do not place container containing water on top of the fridge.
- Spilled water can cause fire or electric shock hazard.
ꞏ
Do not install the fridge at the place where it is humid or possibly gets wet.
- Electric parts with insulation failure could cause fire or electric shock.
ꞏ
Do not store in the fridge or use beside the fridge volatile and flammable articles.
- Benzene, thinner, ethanol, aether, LP gas or other similar substances are possible to cause explosion.
ꞏ
Do not use flammable spray beside the fridge, such as painting and coating.
- Failure to do so can cause electric shock hazard.
ꞏ
If you are going to dispose the fridge, remove the fridge door and seals before discarding it.
- Doing so can prevent shutting kid inside the fridge.
• Do not dismantle or repair the fridge personally.
- It can cause hazards like fire, fault or personal injury.
• Do not replace the LED personally. If you do, please contact professional service personnel.
• The fridge must be grounded.
- So as to prevent power loss or electric shock caused by current leakage.
ꞏ
Never use gas pipe, phone line or other hidden lightning arrestor as grounding point.
- Improper use of grounding plug may cause electric shock.
Warning signs
WARNING
• Do not store too much food in the fridge.
- Food may fall out when you open the fridge door, causing hazards such as personal injury or material
damage.
ꞏ
Do not place carbonated or fizzy drinks in the freezer compartment. Do not put bottles or glass containers in
the freezer.
- When the contents freeze, the glass may break and cause personal injury and property damage.
ꞏ
Plastic bottles or glass containers with a small volume should not be stored on bottle guard inside the fridge.
- As small plastic bottles are unstable on bottle guard and may fall easily.
ꞏ
Do not pull the power cord to unplug the power plug.
- Broken power cord can cause short circuit, fire or electric shock.
- When the power cord is broken, it must be replaced by the manufacturer, approved service agent or qualified
service personnel.
ꞏ
Do not store articles on top of the fridge.
- The articles may fall and cause personal injury or material damage when you open or close the fridge door.
ꞏ
Do not store medicines, scientific research materials or other temperature- sensitive products inside the
fridge.
- Check product label in order to assure which products can be refrigerated.
ꞏ
When you power on your fridge for the first time, wait until the fridge is chilling enough to put in food, and do
not place food close to temperature sensor.
- So as to avoid interfering correct display of temperature.
ꞏ
Do not allow kids to play or climb the fridge.
- So as to avoid damaging the fridge or hurting the kids.
ꞏ
Do not touch the shelf evaporator inside the freezer with wet hands.
- So as to prevent water on your hands from icing and sticking your hands to the fridge interior, causing
personal injury.
ꞏ
When gas is leaking, turn off the gas valve first and manage to exhaust and exchange indoor air. You must
not unplug the power plug in the first place.
- So as to prevent the plug from sparking and causing unexpected accident.
ꞏ
After the power supply is off, wait at least five minutes before next power-on.
- So as to avoid damaging the compressor.
ꞏ
Never strike or push the glass surface with great force.
- Or broken glass may cause personal injury and/or property loss.
ꞏ
Some fridge models have exterior protection film, which is used to prevent scratching the icebox during
transportation. To avoid generation of static charges, please slowly rip off the protective film. If the film
remained on the appliance for a long time, shade deviation of steel plate may be caused.
ꞏ
Except the methods recommended by the manufacturer, mechanical devices or other methods shall not be
used to accelerate the defrosting process.
ꞏ
Do not damage the chilling circuit.
ꞏ
Except for the types recommended by the manufacturer, do not use electric devices inside food storage
chamber of the appliance.
ꞏ
Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear of obstruction.
ꞏ
The 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 concer ning use of the appliance by a person responsible for their safety.
ꞏ
Children should be supervised to ensure that they do not play with the appliance.
ꞏ
This appliance is for household use and similar purposes, such as:
- Kitchen area in commercial stores, offices and other working premises;
- Customers of farms and hotels, motels and living environment;
- Environment of Family-inn style;
- Catering industry and similar non-retail applications.
• If you find strange noise, bad smell or smoke, immediately unplug the power plug and contact local
Samsung Service Center.
• When you clean the plug, do not remove foreign substance from the pins of power plug with wet cloth.
- There are scotching and fire hazards.
• Do not put your hand in bottom area of the fridge.
- Sharp edges may cause bodily injury.
• If the fridge is not used for a long period, the power plug should be unplugged.
- Aged insulating material may cause fire.
Additional tips for proper usage
ꞏ
In the event of a power failure, call the local office of your electric company and ask how long the failure is
going to last.
- Most power failures that are corrected in an hour or two will not affect your refrigerator temperatures.
However, you should minimize the number of door openings while the power is off.
- Should the power failure last more than 24 hours, remove and discard all frozen food.
ꞏ
There is no need to disconnect the refrigerator from the power supply if you will be away for less than three
weeks. But, remove all the food if you are going away for the three weeks or more. Unplug the refrigerator
and clean it, rinse and dry.
ꞏ
Please observe maximum storage times and expiry dates of frozen goods.
ꞏ
The appliance might not operate consistently (possibility of defrosting of contents or temperature becoming
too warm in the frozen food compartment) when sited for an extended period of time below the cold end of
the range of temperatures for which the refrigerating appliance is designed.
ꞏ
Do not store food which goes bad easily at low temperature, such as bananas.
ꞏ
Any increase in temperature of frozen food during defrosting can shorten its storage life.
Saving Energy Tips
ꞏ
Install the appliance in a cool, dry room with adequate ventilation. Ensure that it is not exposed to direct
sunlight and never put it near a direct source of heat (a radiator, for example).
ꞏ
Allow warm food to cool down before placing it in the appliance.
ꞏ
Put frozen food in the refrigerator to thaw. You can then use the low temperatures of the frozen products to
cool food in the refrigerator.
ꞏ
Do not keep the door of the refrigerator open for too long when putting food in or taking food out. The shorter
the time the door is open, the less frost build-up you’ll have in the freezer.
ꞏ
It is recommended to install the refrigerator with clearance to the back and sides. This will help reduce power
Refrigerator installation
ꞏ
Confirm the sizes of your household door so as to make sure the refrigerator can pass through the door.
sizes of the refrigerator(Width*Depth*Height):546mm*610mm*1584mm.
ꞏ
Remove all packing assemblies, including internal tape and foams on both sides of glass shelves of the
fridge, etc.
ꞏ
Properly assemble the shelves for initial use by inserting the lugs on both sides into grooves on both sides of
inner liner in order for perfect positioning.
ꞏ
The bottom padding foam of fridge must be removed for initial use.
1.If placement of the refrigerator is a little uneven, level of the
refrigerator can be adjusted by turning the leveling leg beneath the
cabinet (turning it counterclockwise to raise the height). In lower
part of the leveling leg there is an adjusting hole, through which
adjustment can be made by inserting simple tools like a crosshead
screwdriver. To protect surfaces of both sides, protective film is
applied to both sides of a new appliance before delivery. If you are
sure appearance of the appliance is free from defects, you may
remove the film for aesthetic purpose.
NOTE
ꞏ
The refrigerator should be placed on a hard, level ground. Uneven
placement can cause noise and vibration.
ꞏ
Placement on weak floor will strengthen the noise.
ꞏ
Placement on carpet requires a solid backing plate, on which the
refrigerator stands to prevent color change of the carpet caused by heat
under the fridge or prevent the carpet from blocking heat dissipation.
ꞏ
For level and stable placement of the refrigerator, the leveling leg must
be pressed tightly against floor and the refrigerator is tilted slightly
backward for easy shut of the door.
Up
Down
2.Back and sides of the
refrigerator should have a
distance of more than 55 mm
to the wall. Space on top of the
fridge should not be less than 300
mm.
1083mm
120
860mm
90
300 mm or above
55 mm or above
55 mm or
above
3.Clean interior and exterior of the refrigerator with warm, wet
rags (soaked in warm water added with a little detergent).
4.Set the refrigerator level and stable. Wait for about one hour
before power on the fridge. Observe the display on upper door of
the fridge. If you want Power Cool & Power Freeze, press the “Power
Cool & Power Freeze” button and the indicator light for “Power Cool
& Power Freeze” is on. Corresponding indicator lights show the
chilling state of the refrigerator.
NOTE
The refrigerator is ready for food storage after cooling for two to three
hours. Now, the fridge starts working.
Operating Guide for Samsung Double-Door Refrigerator
Things to get ready before use
Having gone through the following steps, the refrigerator is fully ready to use. If not, check power supply and
power source. Please contact local Samsung Service Center in case of any doubts or questions.
1. Install the shelves and containers dismantled for transportation to their correct positions.
2. Clear the fridge, freezer and accessories. Clean up the dust built up during packing and shipping.
3. When the refrigerator is connected to a power source, each opening of the fridge door will turn on
the light inside the fridge.
4. Set temperature control to the lowest level and wait for an hour until the fridge is slightly chilled.
The compressor will run smoothly at the moment and produce gentle hum.
5. When internal temperature of the fridge is low enough, you can store food inside the fridge. But
remember that it takes hours for temperature to reach a suitable level after the refrigerator is
started.
NOTE
Check the range of voltage before connecting the fridge to power source. The cable and socket must be able to
stand for current above 10A.
Control panel
Fridge temp display
Power Cool & Power
Freeze
state display
Control Lock state display
Fridge temp key
Power Cool & Power
Freeze key
Control Lock key
1.Fridge temp key
ꞏ
Press the “fridge” temp key to set temperature for the fridge.
ꞏ
Temperature of the fridge is set as the following: 5ºC→ 4ºC→ 3ºC→ 1ºC→ 7ºC→ 5ºC.
2.Power Cool & Power Freeze key
ꞏ
If the fridge is not in Power Cool & Power Freeze state, press the “Power Cool & Power Freeze” key. The
Power Cool & Power Freeze indicator light is on and the fridge enters Power Cool & Power Freeze state.
ꞏ
The compressor starts and keeps running after “Power Cool & Power Freeze” mode is enabled.
ꞏ
There are two ways to disable Power Cool & Power Freeze state:
-
Press the “Power Cool & Power Freeze” key to exit Power Cool & Power Freeze state;
-
When the fridge reaches zero Celsius degree, the fridge automatically exits Power Cool & Power Freeze
state. The “Power Cool & Power Freeze” indicator light goes off after the fridge exits the Power Cool &
Power Freeze state.
3.Control Lock key
ꞏ
Keep pressing the “Control Lock” key for 3 seconds and the Control Lock indicator light on the display is on.
Other keys except the Control Lock key are disabled.
ꞏ
Keep pressing again the “Control Lock” key for 3 seconds under locked state, the Control Lock indicator light
on the display goes off. All other keys are now enabled.
Adjustment after initial power-on
All indicators are on for 3 seconds after power-on. Temperature inside the fridge is then automatically set at
5ºC. The display shows current temperature setting of the fridge.
NOTE
In case of any error in display, contact professional service person nel for repair in the first time.
Instructions about the WEEE
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.
Setting up your double-door refrigerator
Select a site
Site requirements:
ꞏ
Solid, level surface without carpeting or flooring that may obstruct ventilation.
ꞏ
Away from direct sunlight.
ꞏ
Adequate room for opening and closing the door
ꞏ
Away from a heat source
ꞏ
Room for maintenance and servicing
Temperature range: between 5 °C and 43 °C
Effective temperature range
The refrigerator is designed to operate normally in the temperature range specied by its class rating.
Class Symbol
Ambient Temperature range(°C)
IEC 62552 (ISO 15502) ISO 8561
Extended Temperate SN +10 to +32 +10 to +32
Temperate N +16 to +32 +16 to +32
Subtropical ST +16 to +38 +18 to +38
Tropical T +16 to +43 +18 to +43
NOTE
The cooling performance and power consumption of the refrigerator may be affected by the am-
bient temperature, the door-opening frequency, and the location of the refrigerator. We recom-
mend adjusting the temperature settings as appropriate.
consumption and keep your energy bills lower.
ꞏ
For the most efficient use of energy, please keep the all inner fittings such as baskets, drawers, shelves on
the position supplied by manufacturer.
/
