Samsung RB31FEJNB Series User manual

BOTTOM MOUNTED FREEZER TYPE
BASIC MODEL : RB37J5349SL/EF
MODEL CODE : RB37A5*****
REFRIGERATOR
REFRIGERATOR CONTENTS
1. PRECAUTIONS (SAFETY WARNINGS) ...... 3
2. PRODUCT SPECIFICATIONS .................. 6
3. DISASSEMBLY & REASSEMBLY ............ 16
4. TROUBLE SHOOTING ......................... 40
5. PCB/PBA DAIGRAM .......................... 80
6. WIRING DIAGRAM .............................. 91
7. BLOCK DIAGRAM .............................. 95
8. REFERENCE INFORMATION .............. 100
BOTTOM MOUNTED FREEZER TYPE
BASIC MODEL : RB31FERNCWW/EF
MODEL CODE : RB31FEJNB**, RB31FERNB**,
RB31FEJNC**, RB31FERNC**,
RB31FWJND**, RB31FSJMD**,
RB31FSRMD**, RB31FEJMD**,
RB31FERMD**, RB29FEJNB**,
RB29FEJNC**, RB29FERNC**,
RB29FWJND**, RB29FWRND**,
RB29FSJMD**, RB29FSRMD**,
RB29FEJMD**, RB29FERMD**

2
IMPORTANT SAFETY NOTICE
The service guide is for service men with adequate backgrounds of
electrical, electronic, and mechanical experience. Any attempt to repair
a major appliance may result in personal injury and property damage.
The manufacturer or dealer cannot be responsible for the interpretation
of this information.
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the SAMSUNG ELECTRONICS
Company.
WARNING

3
1. PRECAUTIONS (SAFETY WARNINGS)
● Upon electronic Control system repair/change, make sure the set unplugged.
Be ware of electric shock.
● Use rated electronic Control equipment.
Make sure to check out ModeL name, Rated voltage, Rated current, Operation Temp, etc.
● Upon repair, make sure that harnesses are not to be water-penetrated and are bundled
tight. Should not be detached by a certain amount of external force.
● Upon repair, completely remove dust or other foreign substances from housing, harness,
connector, etc.
To prevent fire by tracking, short, etc.
● Check out whether water has penetrated into the electronic Control system.
If there is any kind of trace, take necessary measures such as related component change,
insulation tapping, etc.
● After repair, check out the assembled state of parts.
It should be the same as the previous state.
● Check out the surrounding conditions.
Change the location, if the fridge is located at humid, wet places or the installed state is
unstable.
● If needed, ground the fridge.
Especially, if there is a possibility of electric leakage, ground is indispensable.
● Do not allow consumers to overload a certain outlet.
● Check out whether the power cord or the outlet is broken, squeezed, chopped off or heat-
deformed.
Repair or replace the defective power cord/outlet immediately.
Make sure the power cord is not punctuated or stomped down.
● Do not allow consumers to keep food unstable or place bottles in the Freezer Room.
● Do not allow consumers to repair the fridge for themselves.
● Do not allow consumers to keep things except for food.
Pharmaceutical, Chemical substances : These are not possible to be fine-Controlled with a
consumer fridge.
Flammable material (alcohol, benzene, ether, LPG, etc) : possibility of explosion.

4
1. PRECAUTIONS (SAFETY WARNINGS)
Read all instructions before repairing the product and keep to the instructions
in order to prevent danger or property damage.
CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS
Indicates that a
danger of death
or serious injury
exists.
Indicates that a risk
of personal injury
or material damage
exists.
means Prohibition”.
means Do not disassemble”.
means No contact”.
means The things to be followed”.
means Earth to prevent Electric shock”.
means Power cord should be unplugged
from the consent”
Warning
Warning & Caution
Caution
Use the rated components on the
replacement.
● Check the correct model, rated voltage,
rated current, operating temperature and so on.
On repair, make sure that the wires such
as harness are bundled tightly.
● Bundle tightly wires in order not to be detached
by the external force and then not to be wetted.
Check if there is any trace indicating the
permeation of water.
● If there is that kind of trace, change
the related components or do the necessary treatment
such as taping using the
insulating tape.
After repair, check the assembled state of
components.
● It must be in the same assembled state
when compared with the state before disassembly.
On repair, remove completely dust or other
things of housing parts, harness parts, and
check parts.
● Cleaning may prevent the possible fire by tracking
or short.
Rated
components

5
1. PRECAUTIONS (SAFETY WARNINGS)
※ Please ler users know following warnings & cautions in detail.
Do not allow users to put bottles or kinds of
glass in the freezer.
● Freezing of the contents may inflict a wound.
Do not allow users to store narrow and lengthy
bottles or foods in a small multi-purpose room.
● It may hurt you when refrigerator door is
opened and closed resulting in falling stuff down.
Do not allow users to store pharmaceutical
products, scientific materials, etc., in the
refrigerator.
● The products which temperature
control should not be stored in the refrigerator.
Do not allow users to store articles on the
product.
● Opening or closing the door may cause things to
fall down, with may inflict a wound.
Prohibition Prohibition Prohibition
Prohibition
Warning & Caution
Do not allow users to disassemble, repair or
alter.
● It may cause fire or abnormal operation
which leads to injury.
Do not
disassemble
Do not allow users to insert the power plugs for
many products at the same time.
● May cause abnormal generation of heat or fire.
Prohibition
Do not allow users to bend the power cord with
excessive force or do not have the power cord
pressed by heavy article.
● May cause fire.
Do not allow users to install the refrigerator in
the wet place or the place which water
splashes.
● Deterioration of insulation of electric
parts may cause electric shock or fire.
Make sure of the earth.
● If earthing is not done, it will cause breakdown and
electric shock.
Earth

6
2. PRODUCT SPECIFICATIONS
2-1) Introduction of main function ····················· 7
2-2) Model Specification ························· 8
2-3) Electiric Part Specification ······················ 11
2-4) Dimension (mm) ··························· 15

7
2. PRODUCT SPECIFICATIONS
2-1) Introduction of main function
●SAMSUNG refrigerator has the following characteristics.
Characteristics Specification
Environment-friendly
fridge/freezer using R600a
(RL43* MODEL ONLY)
• This products protects the environment by using the R600a refrigerant and the
cyclopentane blowing agent
• Properties :ODP(Ozone Depletion Potential):0GWP : Lowest
* GWP(Global Warming Potential)
High -energy efficiency
• Drawer for dry or wrapped food
• Drawer for fresh salades,vegetables and fruits
Fridge at the top, drawer-
type freezer at the bottom
• The highly ergonomic vegetables compartment is placed at waist height as it is
frequently used.
• The drawer -type freezer minimize temperature variations and stores food cleanly
and conveniently.
• The operation switch is handy to switch the appliance on and off without pulling out
the main plug.
Digital temperature control
display • The display shows all functions of the appliance, so that you can easily control them.
Supply of cool water without
door openning
• With the water dispenser,you can obtain chilled water easily without
opening the door. In addition, you can save electricty by more than
30%reducing the number of times the door is open.
LED LAMP • High Energy Efficiency, Long Life

8
2. PRODUCT SPECIFICATIONS
2-2) Model Specification
Item SPECIFICATION
Models RB37A**9** RB37A**5** RB37A**0** RB37A**1**(CIS)
Net
Capacity
Total 365 367 367 367
Refrigerator
267 269 269 269
Freezer 98 98 98 98
Net
dimension
W (mm) 595 595 595 595
D (mm) 647 647 647 647
H (mm) 2010 2010 2010 2010
Rated Voltage and Frequency 230V / 50HZ
Motor Rated
Consumption
Power
c-fan 12v,3w - - -
r-fan 12v, 2.2w - - -
f-fan 12v, 2.2w 12v, 2.2w 12v, 2.2w 12v, 2.2w
Electric Heater Rated
Consumption Power 230V, 150W
Kind of Refrigerator INDIRECT COOLING METHOD REFRIGERATOR
Refrigerant/
Refrigerant Amount 73Gr 63Gr 63Gr 63Gr
Freezer Performance 4-STAR
Product Weight 81.5kg 73.5kg 73.5kg 74.5kg

9
2. PRODUCT SPECIFICATIONS
Item SPECIFICATION
Models RB31F****B RB31F***C RB31FD***D
RB31FW***D RB31F****D RB29F****B RB29F***C RB29FD***D RB29FW***D RB29F****D
Net
Capacity
Total 304 304 308 310 286 286 288 290
Refrigerator 206 206 210 212 188 188 190 192
Freezer 98 98 98 98 98 98 98 98
Net
dimension
W (mm) 595
D (mm) 664
H (mm) 1850 1780
Rated Voltage and Frequency 230V / 50HZ
Motor Rated
Consumption
Power
C-FAN 12V, 3W - - - 12V, 3W - - -
F-FAN 12V, 2.2W
Electric Heater Rated
Consumption Power 230V, 150W
Kind of Refrigerator INDIRECT COOLING METHOD REFRIGERATOR
Refrigerant/
Refrigerant Amount
R-600a
61 Gr 61 Gr 61 Gr 61 Gr 61 Gr 61 Gr 61 Gr 61 Gr
Freezer Performance 4-STAR
Product Weight 65 kg 65 kg 65 kg 65 kg 63 kg 63 kg 63 kg 63 kg

10
2. PRODUCT SPECIFICATIONS
NOTE
This operation instruction covers various models.
The characteristics of your appliance may differ slightly from those
described in this manual.

11
2. PRODUCT SPECIFICATIONS
2-3) Electric Parts Specification
RB37A**9** RB37A**5** RB37A**0** RB37A**1**(CIS)
Compon nents for Freezer
Refrigerant R-600a
Freezing Capacity 4-Star
Compressor
Model NC4MVA1ALP/TT1 NC4MVA1ALP/TT1 MSV4A1AL1R/TT1 MSV4A1AL1R/TT2
Starting type BLDC BLDC BLDC BLDC
Oil Charge 200±10 200±10 200±10 200±10
Evaporator Freezer Split Fin Type
Condenser
(Convection Type) forced type convection type convection type convection type
Dryer Molecular sieve XH-9
Capillary Tube OD1.8xID0.85xL3900 CU - - -
OD2.05xID0.75xL4500 CU OD1.8xID0.75xL4000 OD1.8xID0.75xL4000 OD1.8xID0.75xL4000
Electric Components
Defrost Heater Conducting
at F Defros 230V / 150W
Thermal-Fuse for preventing
overheating of Refrigerator
Defrost-Heater
AC250V, 10A, 109~110℃
Over-load
Relay
Model
4TM445PHBYY-82
Temp. ON 125℃ ± 5
Temp. OFF 69℃ ± 9
Rated Voltage 200 - 240V ~ 50Hz, 220V ~ 60Hz
Motor
F ROOM 12035GE-12M-YT-F1
R ROOM
12035GE-12M-YT-F1
-
-
-
C ROOM G1538S12D1-SS-TTL
Damper R ROOM
Damper - NSBA001TF1, DC12V, 60mA
Lamp LED Type DC12V,65*10*1.6T, FR4.3PKG
Door Switch Reed switch, DC 200V, 1.5A

12
2. PRODUCT SPECIFICATIONS
RB31FE*** RB31FE***
RB30FE***
RB31FD***
RB31FW***
RB31F****
RB32F**** RB29F**** RB29F****
RB28F****
RB29FD***
RB29FW***
RB29F****
RB28F****
Compon nents for Freezer
Refrigerant R-600a
Freezing Capacity 4-Star
Compressor
Model MSV488AL1P/
TT1
MSV488AL1R/
TT1
MSV488AL1R/
TT1
MSV488AL1R/
TT1 MSV488A-L1P MSV488AL1R/
TT1
MSV488AL1R/
TT1
MSV488AL1R/
TT1
Starting type BLDC BLDC BLDC BLDC BLDC BLDC BLDC BLDC
Oil Charge 200 ± 10cc 200 ± 10cc 200 ± 10cc 200 ± 10cc 200 ± 10cc 200 ± 10cc 200 ± 10cc 200 ± 10cc
Evaporator Freezer Split Fin Type
Condenser
(Convection Type) Forced Type Convection Type Forced Type Convection Type
Dryer Molecular Sieve XH-9
Capillary Tube Cu, Φ1.8XID0.75XL4000 Cu, Φ1.8XID0.75XL3500 Cu, Φ1.8XID0.75XL4000 Cu, Φ1.8XID0.75XL3500
Electric Components
Defrost Heater Conducting
at F Defros 230V / 150W
Thermal-Fuse for preventing
overheating of Refrigerator
Defrost-Heater
AC250V, 10A, 109~110℃
Over-load
Relay
Model
4TM308RFBYY-82
Temp. ON 130℃ ± 5
Temp. OFF 61℃ ± 9
Rated Voltage 200 - 240V ~ 50Hz, 220V ~ 60Hz
Motor
F ROOM 12035QE12MY or DREP8020RA (DC 12V)
C ROOM
G1538S12D1-SS-
TTL(DC 12V)
---
G1538S12D1-SS-
TTL(DC 12V)
---
Damper
R ROOM
Damper NSBA001TF1, DC12V, 60mA
Cool Select
Zone NSBY001TE1, DC12V - - NSBY001TE1, DC12V - -
Lamp LED Type DC 12V, 65*10*1.6T, FR4, 3PKG
Door Switch Reed switch, DC 200V, 1.5A

13
2. PRODUCT SPECIFICATIONS
Items Specification
Model RB37A**9** RB37A**5** RB37A**0** RB37A**1**(CIS)
Room Temperature Sensor Components
Freezer
Model
Temperature
Selection
ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃)
Thermistor
-23℃ -21 -25 -21 -25 -21 -25 -21 -25
-19℃ -18 -22 -18 -22 -18 -22 -18 -22
-15℃ -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5
Refrigerator
Model
Temperature
Selection
ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃)
Thermistor
1℃ -1 3 -1 3 -1 3 -1 3
3℃ 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5
7℃ 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5
Defrost Related Components
Defrost Cycle
First Defrost Cycle (Concurrent defrost
of F and F) 6 ± 10 min
Defrost Cycle (FRE) 6~77hr(vary according to the conditions used)
Pause time 5 ± 1 min
Defrost Sensor
Model SENSOR TEMP-F DEF SENSOR
SPEC 5.39 or 5.49 Kohm at 23℃
Thermal-Fuse
Rated 120V/250V, 15A/10A
Operating
temperature
109 ~ 110℃

14
2. PRODUCT SPECIFICATIONS
Items Specification
Model RB31FE*** RB31FE***
RB30FE***
RB31FD***
RB31FW***
RB31F****
RB32F**** RB29F**** RB29F****
RB28F****
RB29FD***
RB29FW***
RB29F****
RB28F****
Room Temperature Sensor Components
Freezer
Model
Temperature
Selection
ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃)
Thermistor
-23℃ -21.0 -25.0 -21.0 -25.0 -21.0 -25.0 -21.0 -25.0 -21.0 -25.0 -21.0 -25.0 -21.0 -25.0 -21.0 -25.0
-19℃ -18.0 -22.0 -18.0 -22.0 -18.0 -22.0 -18.0 -22.0 -18.0 -22.0 -18.0 -22.0 -18.0 -22.0 -18.0 -22.0
-15℃ -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5 -12.5 -16.5
Refrigerator
Model
Temperature
Selection
ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃) ON(℃) OFF(℃)
Thermistor
1℃ -1.0 3.0 -1.0 3.0 -1.0 3.0 -1.0 3.0 -1.0 3.0 -1.0 3.0 -1.0 3.0 -1.0 3.0
3℃ 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5 0.5 4.5
7℃ 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5 4.5 8.5
Defrost Related Components
Defrost Cycle
First Defrost Cycle
(Concurrent defrost of F
and F)
6 ± 10 min
Defrost Cycle (FRE) 6 ~ 56hr (vary according to the conditions used)
Pause time 5 ± 1 min
Defrost Sensor
Model SENSOR TEMP-F DEF SENSOR
SPEC 5.39 or 5.49 Kohm at 23℃
Thermal-Fuse
Rated 120V/250V, 15A/10A
Operating
temperature
109~110℃

15
2. PRODUCT SPECIFICATIONS
RB37 2006 1971 1976
2-4) Dimensions (mm)

16
3. DISASSEMBLY & REASSEMBLY
3-1) Precaution ······························ 17
3-2) Assy Door ····························· 18
3-3) Door Sub parts ··························· 20
3-4) Refrigerator Compartments ····················· 22
3-5) Freezer Compartments ······················· 23
3-6) Machine Compartment ······················· 29
3-7) Compressor ···························· 31
3-8) Reversing the Door swing ······················ 32

17
3. DISASSEMBLY & REASSEMBLY
• Unplug the refrigerator before cleaning and making repairs.
• Do not dissemble or repair the refrigerator by yourself.
- You run risk of causing a fire, malfunction and/or personal injury.
• Remove any foreign matter or dust from the power plug pins.
- Otherwise there is a risk of fire.
• Do not use a cord that shows cracks or abrasion damage along its length or at either end.
• Do not plug several appliances into the same multiple power board.
The refrigerator should always be plugged into its own individual electrical which has a voltage rating that matched the
rating plate.
- This provides the best performance and also prevents overloading house wiring circuits, which could cause a fire
hazard from overheated wires.
• Do not install the refrigerator in a damp place or place where it may come in contact with water.
- Deteriorated insulation of electrical parts may cause an electric shock or fire.
• The refrigerator must be grounded.
- You must ground the refrigerator to prevent any power leakages or electric shocks caused by current leakage from
the refrigerator.
• Do not put bottles or glass containers in the freezer.
- When the contents freeze, the glass may break and cause personal injury.
• Do not store volatile or flammable substances in the refrigerator.
- The storage of benzene, thinner, alcohol, ether, LP gas and other such products may cause explosions.
3-1) Precaution
- NEED TOOL
IMAGE ITEM USE
Phillips Head Driver Use for assembling and
disassembling of screw
Flat Head Driver
Use for assembling and disassembling
of HomeBar, Dispenser, Deli Cartessen
Box, Main PBA etc...
Socket Wrench Ø8mm, 12mm Use for assembling and
disassembling of Door Hinge

18
3. DISASSEMBLY & REASSEMBLY
Removing the Refrigerator Door
3-2) Assy Door
PART NAME FIGURE DESCRIPTION
Removig the
Refrigerator
Door
1. Remove the Cover Wire(①), Cap Space Door(②),
Cover Hinge(③) using a flathead screwdriver.
Be careful of injury.
2. Remove hinge screws (③) by turning to
counterclockwise, and take off the cover hinge
(④) along the arrow.
Take care when removing the
door to ensure that it does not
fall on you.
3. Remove the door from the middle hinge by
carefully lifting the door (⑤).
Be careful not to scratch.

19
3. DISASSEMBLY & REASSEMBLY
Removing the Freezer Door
PART NAME FIGURE DESCRIPTION
Removing the
Freezer Door
1. After unscrewing and removing two bolts,
disassemble the ASSY HINGE MID (⑥).
2. Remove the door by carefully lifting the door (⑦).
Be careful not to scratch.

20
3. DISASSEMBLY & REASSEMBLY
3-3) Door Sub parts
PART NAME FIGURE DESCRIPTION
Door Handle
(Bar/Easy
handle)
1. Insert a flat-head screwdriver on the slot as
shown,and unlock the caps.
2. Remove screws by turning to counterclockwise,
and take off the Handle Assy by pulling out.
Door Gasket
The door gasket is a molded gasket set into a
channel located in the door liner.
1. Open the door.
2. Grasp the gasket and pull in an outward motion
until the molded gasket separates from the door
liner.
Be careful of injury.
Door display
(Frige Option
Item)
- Exterior Display
1. Remove inlay film as shown.
2. Insert a flat-head screwdriver on the slot as
shown,and unlock the tabs.
3. Disconnect the wire connector.
When diassembling, make sure
the unit turned off.
Water
Dispenser
(Frige Option
Item)
1. Hold the top as shown in the picture and remove
it by pulling it forward.