Samsung RS2511, RS2630W-XAA, RS2611, RS2631, RS2630SW User Manual

SIDE-BY-SIDE REFRIGERATOR

SAMSUNG Home Appliance Service

MODEL:
RS2511
RS2611
RS2630W/XAA
RS2531
RS2631
RS2521
RS2621
RS2630SW

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.

SAMSUNG ELECTRONICS AMERICA, INC.

Technical Service Guide

Copyright ⓒ2004

All rights reserved. This service guide may not be reproduced in whole or in
part in any form without written per mission from the SAMSUNG ELECTRONICS
Company.

WARNING

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Contents

9. Specifications 32

10. Interior Views and Dimensions 33

11. Refrigeration Cycle and Cool Air Circulation Route 36

12. Function & How- to-use By Products 38

13. Diagnostics 58

1. Safety instruction on services

2. Warranty information

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3. Mechanical Disassembly

4.

Circuit Diagram

5.

Operation Principles By Parts Of Circuit

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6.Introduction

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9

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15

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29

7. Installation 30

8. Nomenclature 31

1. Safety Instructions on Service

Unplug the refrigerator before making any repair or any replacement.

 Avoid the electric shock.

Use the rated components on the replacement.

 Check the correct model number, rated voltage, rated current, operating temperature and so

on.

On repair, be sure that the wires such as harness are bundled tightly and are not exposed by

water

 Bundle wires tightly in order not to be detached by the external force.

On repair, remove completely dust, particles or other things on housing parts, harness parts,

and connectors.

 Cleaning may prevent fire by tracking or short.

Check if there is any trace indicating the infitration of water on electrical parts.

 If there is kind of trace, change the related components or do the necessary action

such as taping using the insulating tape.

After repair, check the assembled state of parts.

 It must be in the same assembled state when compared with the state before

disassembly.

Check the surrounding conditions of the installed refrigerator.

 When the refrigerator is located at humid or wet place, or the installed state is

unstable, change the location.

If needed, do the ground.

 Especially, if there is a possibility of the electric leakage, this appliance must be

properly grounded.

Do not allow consumers to use one outlet for several plugs.
Check whether the power cord is placed under other appliance and so, damaged, worm-out

squeezed.

Repair immediately the defective power plug or outlet.
Make sure that the power cord is not placed under other appliance or squeezed.

Do not allow consumers to keep bottles or the likes in the Freezer or to keep foods in unstable

position.

Do not allow consumers to repair the appliance by themselves.
Do not allow consumers to keep other chemicals except food.

Medicines and other materials for research ; This appliance will not maintain the precisely

constant temperature for them.

Volatile material(Alcohol, Benzene, Ether, LP gas etc.) : possibility of explosion

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2. Warranty information

LIMITED WARRANTY TO ORIGINAL PURCHASER

SAMSUNG REFRIGERATOR

This SAMSUNG brand product, as supplied and distributed by Samsung Electronics America, Inc. (SAMSUNG) and delivered new,
in the original carton to the original consumer purchaser, is warranted by SAMSUNG against manufacturing defects in materials
and workmanship for a limited warranty period of:

One (1) Year Parts and Labor on Refrigerator

Five (5) Years Parts and Labor on Sealed Refrigeration System Only*

(*Compressor, evaporator, condenser, drier, connecting tubing)

This limited warranty begins on the original date of purchase, and is valid only on products purchased and used in the United
States. To receive warranty service, the purchaser must contact SAMSUNG for problem determination and service procedures.
Warranty service can only be performed by a SAMSUNG authorized service center. The original dated bill of sale must be
presented upon request as proof of purchase to SAMSUNG or SAMSUNG's authorized service center.

SAMSUNG will repair or replace any part found to be defective, at our option and at no charge as stipulated herein, with new or
reconditioned parts during the limited warranty period specified above. All replaced parts and products become the property of
SAMSUNG and must be returned to SAMSUNG. Replacement parts and products assume the remaining original warranty, or
ninety (90) days, whichever is longer.

In-home service will be provided during the warranty labor period subject to availability within the contiguous United States. In­home service is not available in all areas. To receive in-home service, the product must be unobstructed and accessible from floor
level to service personnel. If during in-home service repair cannot be completed, it may be necessary to remove, repair and return
the product. If in-home service is unavailable, SAMSUNG may elect, at our option, to provide for transportation of our choice to
and from a SAMSUNG authorized service center. Otherwise, transportation to and from the SAMSUNG authorized service center
is the responsibility of the purchaser.

This limited warranty covers manufacturing defects in materials and workmanship encountered in normal, noncommercial use of
this product, and shall not apply to the following, including, but not limited to: damage which occurs in shipment; delivery and
installation; applications and uses for which this product was not intended; altered product or serial numbers; cosmetic damage or
exterior finish; accidents, abuse, neglect, fire, water, lightning or other acts of nature; use of products, equipment, systems, utilities,
services, parts, supplies, accessories, applications, installations, repairs, external plumbing and leaks, external wiring, circuit
breakers, fuses or connectors not supplied and authorized by SAMSUNG, or which damage this product or result in service
problems; incorrect electrical line voltage, fluctuations and surges; customer adjustments and failure to follow operating instructions,
cleaning, maintenance and environmental instructions that are covered and prescribed in the instruction book; loss of food due to
spoilage; consumable items including filters and light bulbs.

THERE ARE NO EXPRESS WARRANTIES OTHER THAN THOSE LISTED AND DESCRIBED ABOVE, AND NO WARRANTIES
WHETHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY AFTER THE EXPRESS WARRANTY
PERIODS STATED ABOVE, AND NO OTHER EXPRESS WARRANTY OR GUARANTY GIVEN BY ANY PERSON, FIRM OR
CORPORATION WITH RESPECT TO THIS PRODUCT SHALL BE BINDING ON SAMSUNG. SAMSUNG SHALL NOT BE
LIABLE FOR LOSS OF REVENUE OR PROFITS, FAILURE TO REALIZE SAVINGS OR OTHER BENEFITS, OR ANY OTHER
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY THE USE, MISUSE OR INABILITY TO USE THIS
PRODUCT, REGARDLESS OF THE LEGAL THEORY ON WHICH THE CLAIM IS BASED, AND EVEN IF SAMSUNG HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. NOR SHALL RECOVERY OF ANY KIND AGAINST SAMSUNG BE
GREATER IN AMOUNT THAN THE PURCHASE PRICE OF THE PRODUCT SOLD BY SAMSUNG AND CAUSING THE
ALLEGED DAMAGE. WITHOUT LIMITING THE FOREGOING, PURCHASER ASSUMES ALL RISK AND LIABILITY FOR LOSS,
DAMAGE OR INJURY TO PURCHASER AND PURCHASER’S PROPERTY AND TO OTHERS AND THEIR PROPERTY
ARISING OUT OF THE USE, MISUSE OR INABILITY TO USE THIS PRODUCT SOLD BY SAMSUNG NOT CAUSED DIRECTLY
BY THE NEGLIGENCE OF SAMSUNG. THIS LIMITED WARRANTY SHALL NOT EXTEND TO ANYONE OTHER THAN THE
ORIGINAL PURCHASER OF THIS PRODUCT, IS NONTRANSFERABLE AND STATES YOUR EXCLUSIVE REMEDY.

Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or
consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights,
and you may also have other rights, which vary from state to state.

To obtain warranty service, please contact SAMSUNG at:

061002

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3-1) Refrigerator Disassembly

3-2) Freezer Disassembly

3-3) Machine Compartment Disassembly

3. Mechanical Disassembly

Control Panel

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Door Handle

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Door Gasket

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Refrigerator Door Light Switch

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Refrigerator Light

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Tempered Glass Shelf

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Plastic Drawers in Refrigerator

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Gallon Door Bin

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Water Filter

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Damper in the Refrigerator

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Twin cool in the Refrigerator

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Refrigerator Thermistor

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Door Bin in Freezer

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Freezer Door Light Switch

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Plastic(Wire) Drawer in Freezer

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Freezer Shelf

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Ice Dispenser  Ice Maker

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Auger Motor Case

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Freezer Light

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Evaporator Cover in Freezer

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Evaporator Fan Motor

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Evaporator in Freezer

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Freezer Thermistor

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Ambient Thermistor

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Ice-Maker Thermistor

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Machine Compartment  Electrix Box

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Water Solenoids

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Condenser Fan

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Sub-condenser

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3. Mechanical Disassembly

1. Insert a flat-blade screwdriver on the slot as shown,
and unlock the tabs.

2. Disconnect the wire connector.

The door handles allow access into the refrigerator
and freezer. They are front mounted with Phillips
head screws.

1. With a small flat-blade screwdriver, press the
small button and pull handle cover out.

2. Remove the Phillips screws (5).

3. Lift the handle with an in and upward motion until
it disengages the locking tabs. Pull the handle
outward to remove it.

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.

The refrigerator has a door light switch located in

the upper right corner for the refrigerator.

1. Use a small flat-blade screwdriver to unlock the
locking tab and pull the switch out until the
wire connector is visible.

Control Panel

Door Handle

Door Gasket

3-1) Refrigerator Disassembly

Refrigerator Door Light Switch

Button

8

Mechanical Disassembly

The refrigerator light is located in the upper portion

of refrigerator.

1. Pull the tip on the cover.

These shelves allow the storage of larger items and

pull out for easy access.

1. Pull the shelf out as far as it goes.

2. Lift it up and remove it.

Drawers are designed for storage of fruits,
vegetables, and deli items. The drawers are located
in the lower portion of the refrigerator.

1. Pull out the drawer as far as it goes.

2. Tilt the drawer up and pull it out until it is
removed.

The door bins allow storage of perishable items.

1. Push the bin up and slide it out.

The water filter is located in the bottom left-hand
corner of the refrigerator. The water filter filters water
for the ice maker and the water dispenser.

1. Turn the water filter 1/2 turn counterclockwise and
pull it down.

2. To install the filter, align the indication mark
(unlock position) and push it up while turning 1/2
turn clockwise until the lock position is aligned.
Do not over tighten.

Gallon Door Bin

T empered Glass Shelf

Plastic Drawers in Refrigerator

Refrigerator Light

Water Filter

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Mechanical Disassembly

Damper in the Refrigerator

1. Pull out the screw cap and remove the screw.

2. Remove the lamp cover by unlocking the tabs
and pulling the cover down.

3. Remove the screw at the cover damper.

4. Take off sensor and lamp wire connector located
on the upper liner.

6. Remove the damper from the refrigerator.

1. Pull out the Twin cool by unlocking the hooks.

The refrigerator thermistor is located inside of the

upper light cover of the refrigerator.

T win cool in the Refrigerator

Refrigerator Thermistor

THERMISTOR

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The door bins allow storage of perishable items.

1. Push the bin up and slide it out.

This switch is located in the left-hand portion of the

freezer and sends a signal to the processor.

1. With a small flat-blade screwdriver, unlock the
locking tabs and pull the switch out until the wire
connector is visible.

2. Disconnect the wire connector and remove the
switch.

Drawers are designed for storage of meat and dry
foods. The drawers are located in the lower portion of
the freezer.

1. Pull out the drawer as far as it goes.

2. Tilt the drawer up and pull it out until it is
removed.

The shelves slide out for easy access for frozen

items.

1. Slide the shelf out until it reaches its stop.

2. Tilt down and slide it out of thecompartment.

Door Bin in Freezer

Mechanical Disassembly

3-2) Freezer Disassembly

Freezer Shelf

Plastic (Wire) Drawer in Freezer

Freezer Door Light Switch

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Mechanical Disassembly

The ice dispenser is located in the upper portion of
the freezer. This assembly stores ice made by the
icemaker and dispenses ice.

1. Lift the ice bucket up  and slide out the ice
dispenser assembly .

The ice maker is located inside of the ice dispenser

assembly.

1.

Remove ice maker support screws (2), and slide out.

2. Disconnect the ice maker wire connector.

3.

Unlock the locking tabs to separate the ice maker kit.

In order to assemble the icemaker kit.

1. Assemble the geared motor shaft and the front of

ice tray.

2. Lift the front locking tab and assemble the ice

maker kit.

3. Connect the ice maker wire connector.

4. Match the tab holes and tabs(2) located on the

top of the liner, and slide the ice maker in.

5. Tighten the screws (2) of the ice maker support.

This shelf is designed to support the ice maker 

ice dispensed and Xtra Space

TM

.

1. Remove the Xtra Space

TM

cover to push it down

and pull front.

2. Slide the partition out.

3. Remove the screws (2) on the bottom front of the
case.

4. Slide out the case while disconnecting the wire
connect.

Auger Motor Case

PARTITION

SCREWS

WIRE CONNECTOR

SUPPORT OF ICE-MAKER

FRONT OF ICE TRAY

FRONT LOCKING TAB

TAB HOLES

GEARED MOTOR SHAFT

ICE-MAKER KIT

LOCKING TAB

Ice Dispenser & Ice Maker

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The freezer light is located in the bottom of the
auger motor case. The light is covered by an opaque
cover.

1. Remove the screw and the light cover.

The evaporator fan is located in the middle rear of
refrigerator. This fan circulates cold air in the
refrigerator.

1. Remove the fan spring, and than remove fan and
protector motor.

2. Remove screw located at the four corners of
the fan bracket.

3. Take the fan motor assembly off.

1. Remove screw (6).

2. Remove the assy cover multi fre.

3. Remove the assy cover supt motor fre.

4. Remove screw (2).

5. Remove the cover evap front.

6. Disconnect the sensor wire connector.

Evaporator Fan Motor

Freezer Light Evaporator Cover in Freezer

Mechanical Disassembly

ASSY COVER MULTI FRE

ASSY COVER SUPT
MOTOR FRE

COVER EVAP FRONT

INS SUPT
MOTOR FRE

INS MULTI FRE

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Evaporator is located in the bottom of freezer to

produce cold air driven across the evaporator coils.

1. Take off the ductwork in Freezer.

2. Disconnect the wire connector (Heater, Bimental,
and Thermistor).

3. Desolder the inlet and outlet tubes.

4. Remove the evaporator.

5. Take the same steps to seal the system as

mentioned earlier.

The freezer thermistor is located at the top left of
freezer vent. It sends temperature signals to the
micro-processor.

The Ice-Maker thermistor is located in its bottom.

The temperature signal sends the micro-processor.

Evaporator in Freezer

Mechanical Disassembly

Freezer Thermistor

Ice-MakerThermistor

THERMISTOR

THERMISTOR

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1. Disconnect the power cord of the refrigerator

.

2. Remove the fixed screws (6) of compressor
cover.

3. Slide up and take off the compressor cover to
see the machine compartment.

4. Remove screw (2) on the cover.

When the solenoids receive a signal from the micro­processor, they supply water to the water dispenser
or the ice maker.

1. Remove bracket screw on cabinet.

2. Take the solenoids assembly out.

3. Disconnect water tubes.

The condenser Fan is located in the middle of
machine compartment. It cools down the sub­condenser and the compressor.

1. Lift up the rib under the support motor.

2. Pull the support motor.

The condenser is located in the machine
compartment. The heat is extracted by condenser
fan.

1. Desolder the compressor discharge the
condenser outlet.

2. Take out the condenser.

Machine Compartment Electric Box

Mechanical Disassembly

3-3) Machine Compartment Disassembly

Water Solenoids

Condenser Fan

Condenser

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4. CIRCUIT DIAGRAM

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5. OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-1) POWER

5-2) OSCILLATION CIRCUIT

Terminal Oscillation Frequency

 Vcc(DC 5V)

<< BLDC

+12V(DC 12V)

MICOM POWER AND SENSORS

BLDC MOTOR POWER(NOT USE)

RELAY,PANEL POWER

● When turned on, rectified AC v oltage which is stepped down on 2nd transf ormer flows between  and 

at about AC 15V, goes through the diode D101 and D104 is changed to DC, and provide constant 12V.
It provides 5V to MICOM and other circuits via regulator REG102 (MC7805ACT), and make entire PCB
operate.

● It is an Oscillation Circuit f or synchronism clock gener ation and time calculation on the information sending &

receiving of the MICOM internal logic elements and when specifications for Resonator change, the timing
system of MICOM changes resulting in errors. (Rated parts must be used)

Terminal Oscillation Frequency

Xin(#19)

Xout(#18)

8.0MHz

8.0MHz

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OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-3) RESET CIRCUIT

5-4) EEPROM DETECTION CIRCUIT

● RESET Circuit allows the whole program to go back to the initial setting by initializing parts such as the RAM in

MICOM with the power supply into MICOM or with an instant power failure .
Upon the power supply, the reset terminal voltage becomes "LOW" f or se v eral tens of  compared to Vcc
voltage(DC 5V) at MICOM, and it maintains "HIGH"(Vcc Voltage) during normal operation.
But, when Vcc drops down to 3.4~3.7V, the reset terminal voltage becomes "LOW".

● A semiconductor memory EEPROM stores data remembering previous settings regardless of power-off, which

are indispensable especially in power fluctuating areas. Also , EEPR OM sets and uses other options in principle.

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OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-5) DOOR SWITCH DETECTON CIRCUIT

1) If R-Door is opened, the contact point of the door switch (4-3) becomes open, and the current of PCB line
comes through R404 and R405 and provides 5 volt which is recognized as door is opened, and turn off the fan
at different load. When the door is closed, the voltage goes out from R404 to Switch, the MICOM is applied
with OV and the door is recognized as closed.

2) If F-Door is opened, the contact point of the door switch (4-3) becomes open, and the current of PCB line
comes through R402 and R403 and provides 5 volt which is recognized as door is opened, and turn off the fan
at different load. When the door is closed, the voltage goes out from R402 to Switch, the MICOM is applied
with OV and the door is recognized as closed.

3) Q401 is the circuit to turn off the auger motor operation when the door is opened. If the door is closed, Vcc
voltage of R402 works as ground via door switch, OV is applied to the base of Q401, and Q401 becomes
operable, Vcc v oltage on "A" part Q702 base works as emitter on Q401 collector and creates OV. (Check the
operable condition for other parts at load terminals)

4) Condition for door open is the opposite of condition 3 above .

Category Door DOOR S/W Contact Point MICOM PORT NO MICOM INPUT









CLOSE

OPEN

CLOSE

OPEN

CLOSE

OPEN

CLOSE

OPEN

"LOW"

"HIGH"

"LOW"

"HIGH"

19

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-6) TEMP SENSING CIRCUIT

1) Sensor uses a thermistor which has a temp coefficient of negative resistance and controls resistance. When

the heat goes up, the resistance gets down and vice v ersa. R302, 4, 6, 9 and C301~C303, C305 are parts for
noise prevention b ut the y are not related to temp sensing characteristics.

2) If Vf is the incoming voltage to MICOM in case of F-Sensor, Vf equals (Rth * Vcc)/ ((R301 + Rth). Where Rth is

resistance of THERMISTOR corresponding to Temp. Please ref er to the Appendix Temp-to-Sensor
Resistance/V oltage con v ersion table(Temp-to-MICOM Terminal Voltage included) on A/S . (Ne xt page)

20

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

 Temp to Resistance of Sensor & MICOM PORT Voltage

Sensor CHIP : PX41C Standard

Temp.

-50 °F/-45.6 °C

-49 °F/-45.0 °C

-48 °F/-44.4 °C

-47°F/-43.9 °C

-46 °F/-43.3 °C

-45 °F/-42.8 °C

-44 °F/-42.2 °C

-43°F/-41.7 °C

-42°F/-41.1 °C

-41°F/-40.6 °C

-40°F/-40.0 °C

-39°F/-39.4 °C

-38°F/-38.9 °C

-37°F/-38.3 °C

-36°F/-37.8 °C

-35°F/-37.2 °C

-34°F/-36.7 °C

-33°F/-36.1 °C

-32°F/-35.6 °C

-31°F/-35.0 °C

-30°F/-34.4 °C

-29°F/-33.9 °C

-28°F/-33.3 °C

-27°F/-32.8 °C

-26°F/-32.2 °C

-25°F/-31.7 °C

-24°F/-31.1 °C

-23°F/-30.6 °C

-22°F/-30.0 °C

-21°F/-29.4 °C

-20°F/-28.9 °C

Resistance()

153319
144794
136798
129294
122248
115631
109413
103569

98073
92903
88037
83456
79142
75077
71246
67634
64227
61012
57977
55112
52406
49848
47431
45146
42984
40938
39002
37169
35433
33788
32230

Voltage(V)

4.694

4.677

4.659

4.641

4.622

4.602

4.581

4.56

4.537

4.514

4.49

4.465

4.439

4.412

4.385

4.356

4.326

4.296

4.264

4.232

4.199

4.165

4.129

4.093

4.056

4.018

3.98

3.94

3.899

3.858

3.816

Temp.

-19°F/-28.3°C

-18°F/-27.8 °C

-17°F/-27.2 °C

-16°F/-26.7 °C

-15°F/-26.1 °C

-14°F/-25.6 °C

-13°F/-25.0 °C

-12°F/-24.4 °C

-11°F/-23.9 °C

-10°F/-23.3 °C

-9°F/-22.8 °C

-8°F/-22.2 °C

-7°F/-21.7 °C

-6°F/-20.6 °C

-5°F/-20.0 °C

-4°F/-45.6 °C

-3°F/-19.4 °C

-2°F/-18.9 °C

-1°F/-18.3 °C
0°F/-17.8 °C

1°F/-17.2 °C

2°F/-16.7 °C

3°F/-16.1 °C
4°F/-15.6 °C

5°F/-15.0 °C

6°F/-14.4 °C
7°F/-13.9 °C
8°F/-13.3 °C
9°F/-12.8 °C

10°F/-12.2 °C
11°F/-11.7 °C

Resistance()

30752
29350
28021
26760
25562
24425
23345
22320
21345
20418
19537
18698
17901
17142
16419
15731
15076
14452
13857
13290
12749
12233
11741
11271
10823
10395

9986
9596
9223
8867
8526

Voltage(V)

3.773

3.729

3.685

3.64

3.594

3.548

3.501

3.453

3.405

3.356

3.307

3.258

3.208

3.158

3.107

3.057

3.006

2.955

2.904

2.853

2.802

2.751

2.7

2.649

2.599

2.548

2.498

2.449

2.399

2.35

2.301

Temp.

12°F/-11.1°C
13°F/-10.6°C

14°F/-10.0°C

15°F/-9.4°C
16°F/-8.9°C
17°F/-8.3°C
18°F/-7.8°C
19°F/-7.2°C
20°F/-6.7°C
21°F/-6.1°C
22°F/-5.6°C
23°F/-5.0°C
24°F/-4.4°C

25°F/-3.9°C
26°F/-3.3°C
27°F/-2.8°C

28°F/-2.2°C

29°F/-1.7°C

30°F/-1.1°C

31°F/-0.6°C

32°F/0.0°C

33°F/0.6°C

34°F/1.1°C
35°F/1.7°C
36°F/2.2°C
37°F/2.8°C

38°F/3.3°C

39°F/3.9°C
40°F/4.4°C

41°F/5.0°C

42°F/5.6°C

Resistance()

8200
7888
7590
7305
7032
6771
6521
6281
6052
5832
5621
5419
5225
5000
4861
4690
4526
4369
4218
4072
3933
3799
3670
3547
3428
3344
3204
3098
2997
2899
2805

Voltage(V)

2.253

2.205

2.158

2.111

2.064

2.019

1.974

1.929

1.885

1.842

1.799

1.757

1.716

1.675

1.636

1.596

1.558

1.52

1.483

1.447

1.412

1.377

1.343

1.309

1.277

1.253

1.213

1.183

1.153

1.124

1.095

Temp.

43°F/6.1 °C
44°F/6.7 °C

45°F/7.2 °C
46°F/7.8 °C
47°F/8.3 °C
48°F/8.9 °C
49°F/9.4 °C

50°F/10.0°C
51°F/10.6 °C
52°F/11.1 °C
53°F/11.7 °C
54°F/12.2 °C

55°F/12.8 °C

56°F/13.3 °C
57°F/13.9 °C
58°F/14.4 °C
59°F/15.0 °C

60°F/15.6 °C
61°F/16.1 °C

62°F/16.7°C
63°F/17.2 °C
64°F/17.8 °C
65°F/18.3 °C
66°F/18.9 °C
67°F/19.4 °C

68°F/20.0 °C
69°F/-45.6 °C
70°F/20.6 °C

71°F/21.7 °C

72°F/22.2 °C

73°F/22.8 °C

Resistance()

2714
2627
2543
2462
2384
2309
2237
2167
2100
2036
1973
1913
1855
1799
1745
1693
1642
1594
1547
1502
1458
1416
1375
1335
1297
1260
1225
1190
1157
1125
1093

Voltage(V)

1.068

1.04

1.014

0.988

0.963

0.938

0.914

0.891

0.868

0.846

0.824

0.803

0.783

0.762

0.743

0.724

0.706

0.688

0.67

0.653

0.636

0.62

0.604

0.589

0.574

0.56

0.546

0.532

0.519

0.506

0.493

21

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-7) DAMPER CIRCUIT

5-8) DISPLAY Circuit

1) The temperature of R-room is controlled by opening and closing of damper with stepping motor, supplying &
blocking cold air .

2) TA7774P (IC07) operates the damper. TA7774P is the driver IC only for step motor . If the regular signal is
provided to TA7774P from Micom, send combined signal to Quad-Polar step motor to rotate on certain
direction. This makes clockwise or counter clockwise rotation to make the damper open or close .

3) Since the damper always touches the cold air , DC 12V/1W heater is installed, alwa ys on to pre v ent the
malfunction from moisture and is controlled on conditions. (Operation conditions can be changed). Micon #15
pin connected to IC4 controls the damper heater like category 3.

1) KEY SCAN
When Grid #6 is output, this signal goes through PCB resistance 10  and provided to power frequency .

When the switch is pressed, R502(6.8 ) and R501 (12 ) decrease the signal and less than 5.1V peak to
peak signal is provided to MICOM, the MICOM recognizes the grid #6 is provided, and change the function
corresponding to switch ke y. [Refer the circuit diagram below]

22

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

2) DISPLAY OPERA TION

Like the signal diagram below, Micom sends “ high ” signal through MICOM 6 terminals of NO #1 2  3  4
 5  6 for 2ms every 12ms. This signal goes to output terminal via input terminal of IC5 (KID65783AP or
TD62783AP). Output wave alw a ys goes through LED input terminal with DC11~12V on every period. At this
time, if SINK signal comes out at IC4, DC11~ 12V is applied to LED input terminal and output terminal sinks to
OV which turn on LED for 2ms F or e xample , to turn on "Po wer Fre." LED, IC4 #16 pin sinks to 0V when IC5
#16 becomes DC 11~12V making "Pow er F re" LED turn on.

 GRID WAVE PATTERN

23

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-9) Load Control Circuit

1) Main PCB processes most of the load control for electronic refrigerators.

2) Compressor, F-Room, defrost heater, and other functions are controlled with relay .

3) For e xample, to operate compressor, MICOM 29 pin outputs high (5V) signal which goes into IC3 Pin #4. The
IC3 pin NO 4 plays the same role as the base of NPN TR. The pin #14 works as collector of TR. So, if 5V is
supplied to pin #4 of IC3, the pin #15 turned on and connected to the ground. Then, the relay RY75 and coil
connected to the pin #15 of IC3 becomes low (OV) and +12V (opposite side of coil) flows to the pin #15 of IC3
via coil and goes into the ground. While current flows to the coil, the magnetic power arise, it turns on the
secondary contact point inside of RY75, and operates when the AC pow er is supplied to the both side of comp.
When MICOM #29 Pin becomes Low(0V), IC3 #4 Pin becomes Low which makes P o wer cut and current of
RY75 RELAY cut. So, secondary contact becomes off due to magnetic field cut, which makes Comp off.

4) All other loads work basically on same principle, defrost heater operates only on the condition that the
compressor is turned off like the circuit above, and connected like the equiv alent circuit below.

* Q710 is connected to the F door switch to

prevent PL accident due to continuous
operation of motor when the auger motor
control circuit is not working properly . It
must be turned off when the door is
opened.

24

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

1) The ice maker circuit above is to control the ice mak er kit installed on the F room.

2) This circuit is the hardware to control ejection and horizontal positioning, ice making temperature detection and

full icing detection. Temperature detection circuit is the same as temperature detection circuit on 4-6 and the
explanation will be skipped and only the ejection circuit will be explained. If MICOM POR T #7 is outputted with
High to rotate motor in ejection direction and the pin #2 of IC5 is inputted, 12V is outputted on pin #17 of IC5,
goes to motor and supplied to pin #11 of IC4. As pin #8 of IC4 and eject MICOM port #7 are connected in
common, 11 output port of IC4 gets on and the current flows into Ground making motor rotates. This motor
rotates the gear and rotates the ejection tray. The tray twists to separate the ice from the tray and return to the
horizontal state.

3) For restoration, motor stops f or 2 seconds when the ejection is completed and to rotate in opposite direction,

output horizontal MICOM port with high and perform horizontal positioning.

4) The test S/W is off in normal cases and MICOM PORT 63 stays high. When necessary , press the s witch f or

more than 1.5 seconds making forced ejection ex ecuted. Full S/W has a le v er that detects the amount of ice on
ice-maker kit and based on the status of MICRO S/W connected to the lev er, if the ice is full on the container,
ejection is not executed, and only if it is off (MICOM POR T 61 is high), the ejection is e x ecuted.

5-10) ICE MAKER OPERATION CIRCUIT

25

OPERATION PRINCIPLES BY PARTS OF CIRCUIT

5-11) OPTION Circuit

● This circuit operates with the initial power on, uses DIODE (1N4148) or JUMPER WIRE.

To modify option circuit, Power must be turned off before modification and turned on after the modification.
Refer to the table belo w, the default factory values are highly recommended unless exceptional cases.

OP11, OP12

OP11







OP12







MODEL
RS2*11
RS2*21
RS2*31

FUNTION

No Cruch, 3 Step, Light

Cruch, 3 Step, Light

Cruch, 5 Step, P/F, L/T Lock, Filter, Indicator

D601









D602









Fill Time

5 Sec
6 Sec
7 Sec

10 Sec

Remark

Flow Sensor Not USE

*



Jumper USE OP2 < W ater Fill Time Control Option >

*



Diode(1N4148) USE

39

Appendix (Reference for circuit diagnostics)

Ref.1) Measure Load Terminals

LOAD

TERMINALS PCB CASE

VALUE

DEFECTS OTHERS

DISPENSER HEATER

1) DEFROST HEATER

2) ICE PIPE HEATER

CN72  & 

CN71  & 

0



0



THERMAL FUSE, HEATER, WIRE SHORT THERMAL
BIMETAL, HEATER, WIRE CUT
HEATER, WIRE SHORT
HEATER, WIRE CUT OR HOUSING SLIPPED AWAY
COIL, WIRE SHORT
COIL, WIRE CUT
COIL, WIRE SHORT
COIL, WIRE CUT
COIL, WIRE SHORT
COIL, WIRE CUT
COIL, WIRE SHORT
COIL, WIRE CUT
MOTOR, WIRE SHORT MOTOR, WIRE CUT OR
HOUSING SLIPPED AWAY
MOTOR, WIRE SHORT
MOTOR, WIRE CUT OR HOUSING SLIPPED AWAY

WATER VALVE
ICE MAKER

CN70  &

CN71 

0



WATER VALVE
DISPENSER

CN70  &

CN71 

0



AUGER MOTOR

CN70  &

CN71 

0



CUBE SOLENOID

CN70  &

CN71 

0



COMP. FAN MOTOR

CN71  & 

0



F FANMOTOR

CN71  & 

0



 Turn off Pow er , disassemb le Housing connected to MAIN PCB CN70,71,72 and measure follo wings

40

Appendix (Reference for circuit diagnostics)

LOAD RELAY TERMINALS VALUE WHEN IT IS DIFFERENT FROM MEASURED VALUE

DEFROST / COMP OFF

RY76 /RY75

SUPPLY

VOLTAGE(SV)

CN71

RY75

SV

CN71

COMP ON

RY76 /RY75

SV

CN71

RY75

0V

CN71

DEFROST

CUBE & AUGER

MOTOR OFF

CUBE & AUGER

MOTOR OPERATING

WATER VALVE

DISPENSER OPERATING

WATER VALVE ICE

MAKER OPERATING

F FAN ON

C FAN ON

RY76 /RY75

0V

CN71

SV

CN71

RY76 CONTACT SHORT,FAULTY DRIVING CIRCUIT
RY75 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT

FAULTY RY75 /
RY76 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT

RY75 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
FAULTY RY76 /

RY75 NC CONTACT OPEN, FAULTY DRIVING CIRCUIT
RY75 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
RY73 &RY74 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
RY74 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
RY73 OR RY74 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
RY74 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
RY79 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
RY77 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT

RY71 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT

RY72 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT

 Turn on Pow er and check status of Rela y & Driving Circuit by chec king f ollowings according to load operation.

 Chec k after disassembling connected to MAIN PCB CN30 &CN32
 Because it is NTC TYPE Sensor , risistance decreases as temp increases

1. Measure resistance between CN30  and  f or R-Sensor .

2. Measure resistance between CN30  and  for F-Sensor.

3. Measure resistance between CN30  and  f or DEF-Sensor .

4. Measure resistance between CN30  and  f or Ambient-Sensor .

5. Compare the above v alues with current temps of Sensoer locations and Part Spec in Manual and ev alute
them.

RY75

SV

CN71CN70

RY73 /RY74

SV

CN71CN70

RY74

0V

CN71CN70

RY73 /RY74

0V

CN71CN70

RY74

0V

CN71

RY79

0V

CN71

RY77

0V

CN71CN70

RY71

0V

CN71CN70

RY72

Ref.2) Check SENSOR

41

AD ELECTRONIC RS2*11
AD ELECTRONIC RS2*21

AD ELECTRONIC RS2*3

*

RS2*11
RS2*21
RS2*31
RS2*30

DISPENSER LAMP

115V/60Hz

220V/50,60Hz

DEF SENSOR

F SENSOR
R SENSOR

AMBIENT SENSOR

NO ITEM SPEC

OTHERS

 The second part DA41-xxxxx? of CODE for MAIN PCB ASS’Y PART can be changed according to

MICOM or Option change, so check it when asking for parts.

Appendix (Reference for circuit diagnostics)

Ref. 3) SERVICE PARTS LIST FOR CIRCUIT

DA41-00219A
DA41-00219B
DA41-00219C
DA41-00218A
DA41-00218B
DA41-00235A
DA41-00235B
DA41-00217A
DA26-00022A
DA26-00022B

DA32-00006D

DA32-00006B

PBA PANEL IN

CODE NO

1

2

3

4

5

PBAMAIN

PBA PANEL

PBA-LAMP ASSY

TRANS DC

SENSOR

4

1. INTRODUCTION



A newly developed SAMSUNG side b y side refrigerator in 2004 has the following

characteristics.

1) T win X AirFlow

Cool air circulates through side vents on e v ery

shelf level. This pro vides e v en distribution of
cooling inside cabinets to keep your f ood fresh
longer.

2) Xtra Space

TM

Vertical room next to the ice maker in the freezer

provides space for pizza etc.

3) Door Alarm

Beep sound reminds you the door is open.

4) Vegetable Crisper

Optimized humidity control k eeps vegetab les &

fruits fresh.

5

2. INSTALLATION

1) T o pr otect refrigerator in movement

Use padded hand truck as shown. If entrance width is
less than 39, remove doors prior to installation and
reattach doors according to procedure below .

2) Remove all protective tape and pad in refrigerators.

Connect water lines and power cord. Adjust the
clearance between the doors.

3) Set the temperature control to the temperature and
wait for an hour .

The refrigerator should get slightly chilled and the motor
runs smoothly .

4) Once the refrigerator temperature is sufficiently low

You can store food in the refrigerator . After starting the
refrigerator, it tak es a f ew hours to reach the appropriate
temperature.



Removing Doors(Freezer)

Open the freezer and refrigerator doors, and
then take off the front leg cover assemb ly b y
unlocking the hook(upper side:3EA, lower side
:3EA) of the front leg.

With the door closed, remove the upper hinge
cover using a screwdriv er , and then disconnect
the wires. Remove hinge scre ws and ground
screw counter-clockwise, and tak e off the upper
hinge. Take care removing the door to ensure that
it does not fall on you.

Remove the door from the low er hinge by
carefully lifting the door so as not to damage the
water tube.



Attaching Doors

-Freezer : Attach the freezer door by inserting
the hose in the lower side of the door into the hole
in the lower hinge and pulling the hose down.

-Refrigerator : Insert the lower hinge in the
bracket lo wer hinge. Attach the door to the
cabinet.

Insert the upper hinge shaft into the hole. After
leveling betw een the upper hinge hole and the
hole of the cabinet. Reattach hinge screws and
screw in the clockwise direction. Connect the
wires. Put the front part of the upper hinge cover
on the front part of the upper hinge(

➀

) and
reattach from the front part of the upper hinge
cover first(

➁

).

6

3. Nomenclature

2004 Models

R S 26 30

SW

/ XAA

Product ; R-SAMSUNG REFRIGERATOR B-OEM REFRIGERATOR

Capacity ; 25,26 cu. ft

Family ; S - SIDE BY SIDE (SBS)

OPTION ; 30-BEST BUY 11,21,31 ; SAMSUNG

COLOR ; WW-WHITE(PCM)

SH-STAINLESS PLATINUM
SW-SNOW WHITE

Buyer Code:
XAA, XAC, CUR

Label Location

Defrost Control From 6 to 11 hrs
Defrost Thermistor(502AT) 59(off)
Electrical Rating AC115V 60Hz 11.6 Amps
Maximum Current Leakage 0.25 mA
Maximum Ground Path Resistance 0.1Ohm
Energy Consumption kWh/mo.
Bimetal 104140(off)

Ambient Temperature 70

 90
Refrigerator, 3446 3446
Freezer, -117 -117
Run Time,% 40 60

Refrigerant Charge (R134a) 6.17 oz
Compressor(MK183C-L2U) 1032 Btu/hr
Compressor oil Freol -15
Capillary tube(Dia, Length)

0.033,130



Dryer

Molecular Sieve XH-9

Clearance must be provided for air circulation
AT TOP 1



AT SIDES 1/8



AT REAR 1



RS2530, RS2630

PBA MAIN(RS2*11)

∙∙∙∙∙∙∙∙∙∙DA41-00216A

PBA MAIN(RS2*21)∙∙∙∙∙∙∙∙∙∙DA41-00217B
PBA MAIN(RS2*30) ∙∙∙∙∙∙∙∙∙DA41-00218C
PBA MAIN(RS2*31) ∙∙∙∙∙∙∙∙∙DA41-00219D
PBA PANEL(RS2*11)∙∙∙∙∙∙∙∙∙DA41-00218A
PBA PANEL(RS2*21)∙∙∙∙∙∙∙∙∙DA41-00218B
PBA PANEL(RS2*30)∙∙∙∙∙∙∙∙∙DA41-00235A
PBA PANEL(RS2*31)∙∙∙∙∙∙∙∙∙DA41-00235B
TRANS DC(115V/60Hz)∙∙∙∙∙∙∙DA26-00022B
TRANS DC(220V/50,60Hz)∙∙∙∙∙DA26-00022C
TRANS DC(127V/60Hz)∙∙∙∙∙∙∙DA26-00022D
SENSOR(DEF SENSOR)∙∙∙∙∙∙DA32-00006D
SENSOR(F SENSOR)∙∙∙∙∙∙∙∙DA32-00006D
SENSOR(R SENSOR)∙∙∙∙∙∙∙∙DA32-00006B
SENSOR(ICE MAKER SENSOR)∙DA32-10108B
RELAY ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙DA35-10013Q
OVERLOADED REALY ∙∙∙∙∙∙∙DA35-10013D
RUN CAPACITOR(12 ßfi)∙∙∙∙∙∙∙2501-001045
FAN MOTOR(FREEZER)∙∙∙∙∙∙DA31-00003W
FAN MOTOR(UNIT)∙∙∙∙∙∙∙∙∙∙DA31-00103A

4. Specifications

Compressor

Dryer

Electric box

Sub-Condenser

ELECTRICAL SPECIFICATIONS Freezer Refrigerator

NO LOAD PERFORMANCE

REFRIGERATION SYSTEM

INSTALLATION

MODELS

REPLACEMENT PARTS

7

8

5. Interior Views and Dimensions

5-1) Shelves and Bins

Freezer

Xtra Space

TM

Ice Maker

Door Bin

Light

Ice Chute

Wire Shelf

Drawers

Front Leg Cover

RS2511**/ RS2611

**

RS2521**/ RS2621

**

RS2531**/ RS2631

**

Light Switch

Dairy Compartment

Egg Container

Deli Bin

Gallon Door Bins

Vegetable & Fruit Drawer (upper)

Vegetable & Fruit Drawer (lower)

Spill-proof glass Shelf

Tempered glass Shelf

RS2511**/ RS2611

**

RS2521**/ RS2621

**

RS2531**/ RS2631

**

CAUTION

Preparing to Move

Secure all loose items such as shelves and drawers by taping them securely in place to prevent damage.
When using a hand truck to move the refrigerator, do not rest the front or back
of the refrigerator against the hand truck.This could damage the refrigerator. Handle only from the sides
of the refrigerator. Be sure the refrigerator stays in an upright position during moving.

Refrigerator

9

Interior Views and Dimensions

29.5

35.6

32.2

32.1

3.4

4.4

3.4

20.115.264.5

67.9

35.8

46.2

16.4

51.2

21.4

5-2) Dimensions of Refrigerator(RS26**) (Inches)

10

Interior Views and Dimensions

29.5

34.9

31.9

32.1

3

4.4

2.0

20.115.264.5

69.7

35.8

45.9

16.4

50.9

21.4

5-3) Dimensions of Refrigerator(RS25**) (Inches)

11

Compressor Condenser  Hot Pipe  Dryer  Capillar y Tube  Evaporator  Suction Pipe 
Compressor

Capillary Tube

Accumulator

Evaporator

Suction Pipe

Dryer

Muffler

Condenser

Hot Pipe

Hot Pipe

Compressor

6. Refrigeration Cycle and Cool Air Circulation Route

6-1) Refrigerant Route in Refrigeration cycle

12

Refrigeration Cycle and Cool Air Circulation Route

6-2) Cool Air Circulation

Freezer

Refrigerator

13

7. Function & How- to-use By Products

7-1) DISPLAY DESIGN

RS2630SW/XAA (for Best Buy)

RS2531**/RS2631

**

RS2521**/RS2621

**

RS2511**/RS2611

**

14

1) Freez er Temp Setting
1-1) With the initial power on, F reezer will be set at MID (-4°F/-20°C) and Refrigerator will be set at MID

(37°F/3°C) automatically. At this time, the number of LEDs (1 ~ 5) lighting up on the display panel means
intensity (MIN ~ MAX) of room control temperature (6.8 ~ -13°F/-14 ~ -25 °C) and as the intensity gets
increased, the number of LEDs increases and the set temperature become lowered.

1-2) Freez er Temp can be set from (6.8°F/-14°C)(MIN) to (-13°F/-25°C)(MAX) with F reez er temp setting button.

2) Refrigerator Temp Setting
2-1) Refrigerator Temp can be set from (44.6°F/7°C)(MIN) to (33.8°F/1°C)(MAX) with Refrigerator temp setting

button.

2-2) Refrigerator set temp varies slightly from actual temperature according to the user’s way of storing food

and peripheral temp. (If food is stored too close to Refrigerator Temp Sensor, it can b loc k air circulation
resulting in weak or over cooling. So , be careful not to b lock it.)

Note) When power is out due to an instant power f ailure or the problems in an electric circuit and restored

again, the ref checks Refrigerator Temp. At this time, When F reezer Temp is lower than (41°F/5°C) ,
Refrigerator considers it as an instant power failure and restores the previous temp and functions stored
in EEPROMforuse.

● It is selected with Power Freeze Button.

● Each time y ou press P o wer Freeze Button, it repeats SELECT  CANCEL (Relev ant ICON ON/OFF).

● When Power Freeze is selected, the temp settings of Refrigerator/Freez er does not change.

● When Power Freeze is selected, it is possible to change the temp settings of Refrigerator/F reezer.

1) POWER FREEZING
1-1) When Po wer Freeze is selected by pressing Power Freeze Button, ICON gets on immediately but Power

Freez e starts its operation in 10 sec. Howev er, when P o wer F reez e Button is reselected during P ow er

Freez e, ICON gets off and operation ends with the selection of Power Freezing.
1-2) When Po wer Freeze is selected, Comp & F reez er-F an oper ates continuously f or 2hr . and 30min.
1-3) During Power Freeze, Refrigerator continues its previous operation.
1-4) After turning off of Power F reez e, Power Freeze lamp goes off automatically and F reez er operates

according to the set temp.
1-5) When it becomes conditions for Defrost during Po wer Freeze, Defrost gets dela y ed and it starts operating

upon completion of Po wer F reez e.

When Po wer Freeze is selected during Defrost, P ower Freeze ICON lights up immediately . But, Comp and

Freez er-F an gets on upon completion of Defrost. (But, the initial 4hr . Defrost comes bef ore Power Freeze)

7-3) POWER FREEZING (on some models)

7. Function & How- to-use By Products

7-2) TEMP CONTROL

15

Function & How- to-use By Products

● When Child Lock Button on the front panel is pressed for a certain period (3sec.), Child Lock LED gets on

and all other buttons on the front panel except f or Child Lock Button do not operate . Also , Ice/W ater
Dispensers do not work.
(Display & all Ref functions will maintain the conditions before Child Lock gets on)

● In the above status, when Child Lock Button is pressed for a certain period (3sec.) again, Child Lock LED

gets off and all other buttons on the frontal panel start operating and Ice/Water Dispensers work.

● This function is de v eloped to pre v ent random controlling by children. It can be used according to the user ’s

need and it needs to be well informed and reminded in advance because it could make Non----sense Calls
by customers.

1) CUBE/CRUSHED/ICE OFF SELECTION
1-1) Upon the initial Po wer On, when F-Room Temp is above (41°F/5°C), CUBE LED on the Displa y lights up

and the other LEDs remains OFF. But, when F-Room Temp is lower than (41°F/5°C), it restores the ice

selection before the POWER OFF and displa ys it on the panel.
1-2) It is selected in the order of CUBE  CRUSHED  ICE OFF repeatedly by ICE TYPE key.
1-3) When operating Ice Dispenser Lever with CUBE or ICE OFF selected, it sends out ice cubes.
1-4) When pressing Ice Dispenser Lever with CR USHED selected, it sends out crushed ice.
1-5) When ICE OFF is selected, ICE-MAKER does not make ice.

Note) When taking out ice with ICE OFF selected, only ice lefted in the storing box is extracted.

2) FILTER RESET OR LIGHT
2-1) When FILTER INDICA TOR LED and LIGHT LED on the front Panel becomes orange or red, Filter should

be changed.

2-2) - When FILTER RESET button is pressed for a certain period (3sec) after changing Filter, FILTER

INDICATOR LED and LIGHT LED becomes green with “ Ding Dong ” sound. (When FILTER RESET is
pressed, water count is reset to 0)

- When the filter is replaced,reset the indicator by pressing the "POWER FREEZE"and "ICE TYPE"button
for 3 second at the same time.

2-3) After Filter reset, when 450 Gallon water is used (including water used in making ice), FILTER

INDICATOR LED and LIGHT LED becomes orange , and when 500 Gallon water is used, FILTER
INDICATOR LED and LIGHT LED becomes red.

2-4) When the water filter is not needed due to the use of purified water or other reasons, the Filter Indicator

can be turned off. When pressing the Filter Reset Button for (“PO WER FREEZE and ICE TYPE BUTT ON)
5 seconds continuously, the Filter Indicator will be off with a "Ding Dong" sound. (At this time, when 3 sec
has passed, the filter will be reset with a "Ding Dong" sound and when 5 sec has passed, the Filter
Indicator will be off.)

2-5) When the Freezer temper ature is higher than 41 °F upon the initial po wer on, the Filter Indicator will be

turned on. And, when it is lower than 41 °F, it will display the pre vious setting (bef ore the pow er off).

7-4) CHILD LOCK (on some models)

7-5) ICE DISPENSER & WATER DISPENSER (on some models)

16

● Among the functions depending on Peripheral Temp, Comp Cooling Fan (Comp Room Fan) is controlled

according to Peripheral Temp as follows .
Therefore, mak e sure to check the contents to ref er to during A/S because Cooling F an can operate or not
according to conditions during Comp operation.

1) Initialization (Restoration to the initial horizontal status)
When the Ice Maker is initialized by Power On or the Ice Error Mode, the Ice Tray gets leveled again b y

rotating the Eject Motor regardless of the horizontal state of the Ice Tray.

1-1) Conditions for Initialization

- After pending time (5sec.) for activation of each MICOM port with the initial Pow er On or the P o wer
On after Po wer Failure.

- When an error occurs due to full icing or the restraint of the Eject Motor, it starts initialization in 24 hours

upon full icing and in an hour upon the counter-rotation error of the Eject Motor.

1-2) Movement f or Initialization

- Satisfy the initial horizontal status by counter-rotating the Eject Motor.

- When the voltage of the Motor Voltage Sensor becomes above 0.55V during counter-rotation of the

Eject Motor, the counter-rotation stops.

- To protect the Gear by releasing its stress a second later after the above directions, rotate the Eject

Motor clockwise for 2ms .

- When it is not detected that the Motor V oltage Sensor becomes more than 0.55V f or a minute after

the counter-rotation, it is considered as an error and initialization gets started again in an hour.

- It stands by for the initial Ejection f or a cycle (2 hours) after completion of initializing mov ement by Power

On and it stands by for normal Ejection after completion of initializing movement b y error .

- After the Ejection Stand-by time has passed, check the temp of the Ice Tray and if the temp reaches

to the Ejection temp, it carries out the Ejection.

1-3) Initializing Movement Timing Chart

Function & How- to-use By Products

7-6) F AN MOT OR DELAY (COMPRESSOR ROOM)

7-7) ICE MAKER

Load operation state

Range of Ambient Temp

Comp Room

DELAY

Above (64.4°F/18°C)

Below (53.6°F/12°C)

With COMP.ON, Comp Room Fan will be

on immediately

After 5 min. from COMP.ON, Comp

Room Fan will be on

Regardless of COMP., Comp Room

Fan will be off

V oltage of Ice

Ejection Motor

Ice Ejection Motor

(Counter clockwise)

Ice Ejection Motor

(Counter clockwise)

Initialization starts

0.55V 

0.5V 
ON

OFF
ON

OFF

Between (55.4°F/13°C)

and (62.6°F/17°C)

17

Function & How- to-use By Products

2) Water Supply
It is the movement to supply water on the ICE-TRAY by using the SOLENOID VALVE after the completion
of the ejection (Ejection after the completion of the normal ice making or that by the test movement)
Considering cases with low hydraulic pressure, when it is recognized as No W ater Supply, the Water Supply
will be attempted for 4 times.

2-1) Specifications for water supply

- After the completion of the normal ejection and the opening of the water supply valve, water is supplied f or
the previously set OPTION time (Set by the DIODE in PCB and normally for 5 sec) and the water supply
valve gets off .

- Water is supplied regardless of the F/R-DOOR OPEN

- While supplying water , the ICE TEST S/W doesn’t work.

- In one min. and 30 sec. after the completion of water supply, Water Supply/ No Water Supply will be
judged.

- Under the condition of additional water supply due to No Water Supply, the additional water supplying time
is 1.5 sec, 1 sec, and 2 sec.

- When judging water supply after the trial of water supply within the number of previous water supply,
complete water supply. In this case, the Ejection Stand-By Time is 55(60) min.

- To prevent the additional water supply by the judgment of No Water Supply due to the ice cube on the tray
cube which the ice maker sensor of the ICE-TRAY is, quit the water supplying movement for one time
when it is judged as No Water Supply after trying to supply water as many as the number of the previous
water supplying. After POWER ON, the number of the pre vious water supplying will be considered as
once for the first water supplying and when No W ater Supply is judged after the initial water supplying, quit
the water supply movement. If the number of the pre vious w ater supply is three times, supply water f or 3
times, and when judged as No Water Supply, quit the water supplying movement. In this case, the
Ejection Stand-By Time is 70~100 min.

- When judged as No Water Supply in the previous w ater supply, supply water for 5 sec, 1.5sec, 1sec ,and 2
sec for 4 times.

- According to conditions, the Ejection Stand-by Time is as follo ws.

2-2) Judgment of Water Supply b y the ICE-TRAY Temp sensor

- In one and a half min after the completion of the water supply, judge either the Water Supply or the No
Water Supply b y comparing the temp change of the ice maker sensor on the ICE TRAY.

- In the case that the temp of the ICE-TRAY ice maker sensor in one and a half min. after the completion of
the water supply is 2 degrees (5 COUNT) higher than that during the water supply movement, it is judged
as the Water Supply and when the temp increases or decreases less than 2 degrees, it is considered as
the No Water Supply.

2-3) Specifications of water supply movement upon pressing the Ice Test S/W

- Supply water for once regardless of the pre vious water supply.

- The Ejection Stand-by Time after the completion of water supply is the same as that after the completion
of the previous water supply mov ement regardless of the W ater Supply/ No W ater Supply recognition.

- Do not change the number of the previous W ater Supply. That is, if the number of Water Supply bef ore
pressing the ICE TEST S/W is 3 times, that of the previous W ater supply after the completion of the W ater
Supply by pressing the ICE TEST S/W is also 3 times.

Detection of No Water Supply

Detection of Water Supply

Number of

water supply

Lower than

(62.6°F/17°C)

60 (55+5) min

55 min

Higher than (64.4°F/18°C)

55 min
55 min

Lower than

(62.6°F/17°C)

100 min

70 min

Higher than (64.4°F/18°C)

90 min
70 min

1

2~4

18

Function & How- to-use By Products

3) Ice Making
It is until the water in the ICE-TRAY after the completion of Water Supply gets frozen completely and the ice
making movement is completed by the temp of the ice making temp pic kup part using the ice maker sensor
(THERMISTOR).

3-1) After water is supplied to the ICE-TRAY, check the temp pickup part of the ice maker sensor after the

Ejection Stand-By Time for 55(55~100) min. (For the No W ater Supply, 90 min) and judge whether the temp
of the ice maker sensor is below (1.4°F/-17°C).

3-2) If the ice maker sensor maintains the temp below (1.4°F/-17°C) for 5 min. It is judged that ice making is

completed. Howev er, do not check the ice maker sensor within the Ejection Stand-By Time from the point of
Water Supply. (Protection function when the sensor is faulty or the cold air leaks.)

3-3) Stand-by for 1 CYCLE: After the completion of the initialization by PO WER ON, it stands b y f or 1 CYCLE

(2hr.) and operates the Ejection although the temp condition of the ice maker sensor is satisfied.

3-4) As long as the temp of the temp sensing part maintains below (1.4°F/-17°C) for more than 5 min, the

Ejection will be carried out. If the temp fluctuates below (1.4°F/-17°C) abov e (1.4°F/-17°C), the Ejection will
be carried out after 5 min. at the temp below (1.4°F/-17°C) while counting the Stand-by Time entering the
temp below (12.2°F/-11°C).

Low water pressure

5s 5s 1.5s 5s 1.5s 1s

Assumption of the ambient temp of higher than 64.4 °F/ 18 °C

Power On

No Water Supply No Water Supply No Water Supply

Initial 2hr standby 90+(5)min 70+(5)min 70+(5)min

High water pressure

5s 5s 5s

Water Supply No Water Supply Water Supply

55+(5)min 90+(5)min 55+(5)min

High water pressure  Lo w water pressure

High water pressure Low w ater pressure

when the Ice cube on
the tray cube which the
sensor is attached is
not removed.

When the ice cube on
the tray cube which the
sensor is attached is
removed.

5s 5s 5s 1.5s 5s 1.5s 1s

Water Supply Water SupplyNo Water Supply No Water Supply

55+(5)min 55+(5)min90+(5)min 70+(5)min

Low water pressure  High water pressure

High water pressureLow water pressure

5s 1.5s 1s 2s 5s 5s

Water Supply Water Supply Water Supply

55+(5)min 55+(5)min 55+(5)min

19

Function & How- to-use By Products

4) Ice Ejection
It is the movement to separate the ice cubes from the ICE-TRAY after the completion of ice making, which is
conducted by the follo wing steps. Chec k the changes in status and time for the horizontal S/W (if it is used)
and the ice level chec k S/W in parallel and then operate Ejection. At this point, the regular rotational direction
of the motors is clockwise (CC) and the rev erse rotational direction of that is counter clockwise (CCW).
The Ice Ejection is carried out twice, which is to separate all the ice cubes from the ICE-TRA Y.

4-1) Detailed movements by step during the Ejection.

- 1

st

step: Ejection temp checking step
Check whether the temp of the temp sensing part is below (5°F/-15°C) and whether the Ejection Stand­By Time after Water Supply has passed. At this point, when the F-Defrost goes into operation during the
Ejection Standby, the Ejection Standby Time will be reset. Then, check that 55(90) min. has passed by
recounting from the beginning after the completion of the Defrost. If the temp of temp sensing part of ice
making become below (1.4°F/-17°C) and maintain it for 5 min, carry on the next step.

- 2

nd

step: Filled up ice container checking step
To check the ice level of the ice container, CHECK the ON/OFF (Low/High) of the ice level S/W If the ice
level S/W is ON (Lo w), it means that the ice container is full and the Ejection stands by. And when the ice
level S/W is turned OFF and 40 min. has passed, the Ejection will be carried out.

- 3

rd

step: ICE TRAY overturning step (clockwise)
It is the movement to turn over the TRAY to separate the ice cubes from the TRAY by rotating the Ejection
motor clockwise for a certain time period. At this point, raise the guide ice to prevent the ice cubes from
contacting the guide ice. Carry out the clockwise rotation for a minute from the start of the clockwise
rotation or until the horizontal S/W is ON (Low) after 5 sec from the beginning of the third step when using
horizontal S/W . If the door of the F-Room is open, stop the clockwise rotation and start the rotation after
the door is closed. During the temporary pause, the clockwise rotation will not be counted.

- 4

th

step: Ice separating step (Standby for 2 sec. at the maximum twist point )
It is the movement to twist the tra y again in the re v ersed state to separate the ice cubes from the tra y
completely and the tray receives torsion because the ICE-TRAY is stopped by the STOPPER. The ice
cubes are separated by this strength and the tray stands b y f or 2 sec. at the maximum twist point f or
complete separation.

- 5

th

step: Reverting to horizontal lev el step (counter clockwise)
Rotate the Ejection motor in reverse to re v ert the ICE-TRAY to the horizontal level. When using the
horizontal S/W , re v erse rotation begins.
When the horizontal S/W is ON (Low) after 5 sec from the beginning of the reverse rotation or the v oltage
of the voltage sensing part of the motor is above 0.55V, the rotation will be stopped. At this point, the
raised guide ice becomes lowered again and touches on the highest point of the stored ice for checking
the ice level.

- 6

th

step: Motor initializing step (clockwise)
After a sec. upon the completion of the 5

th

step, the Ejection motor rotates clockwise f or 2ms to release the

stress of the gear as well as to protect it.

4-2) Errors and handling methods during the ejection

- If the conditions of the completion for the rev erse rotation are not satisfied in a min. after applying the

counter rotation during the execution of the 5 steps of the detailed ejection mov ement, it is considered as
an ERROR and stops the motor .

- If it is judged as an abnormal state, facilitate the initialization in an hour.

If the ejection error occurs 3 times consecutively, it is sensed as ERROR (ICE ERROR) and when
selecting the self diagnosis, it turns on the corresponding LED.

- If the ejection operates normally , the ERR OR v alue of the existing ice making function will be deleted.

20

Function & How- to-use By Products

4-3) Ejection Movement TIMING CHAR T

5) Ice Test
It is necessary for the forced operation for the purpose of the operation test, A/S, and cleaning, and when
pressing the ICE TEST S/W for a certain time period (more than 1.5 sec.), it goes into operation.

5-1) The TEST button will not be selected during the Water Supply or the Ejection. Press it again with the

Water Supply or the Ejection completed to run the Test function. Standby for maximum 5 min. when W ater
Supply operates.

5-2) When the TEST button is selected, the ejection will be carried out by running the eject motor regardless of

the elapsed time (55 min.) after the Water Supply and the temp of the ice making. And after this, the tra y
will be reverted to the horizontal lev el and the ICE TRAY will be supplied with water.

5-3) It operates normally regardless of the Freezer/Refrigerator DOOR OPEN (No temporary pause functions

by the DOOR OPEN)
5-4) Other functions are the same as the movements of the Ejection and the Water Supply.
5-5) When ERROR occurs more than 3 times with the normal function and the ice making stops, the ICE TEST

shall operate. At this point, if the normal Ejection and Water Supply are operated by the TEST S/W, there

would be “Ding Dong” sound for once before the Water Supply and the third ERROR MODE will be

cancelled ex ecuting the normal ice making.

1) Freez er Defrost shall be determined by COMP ON total hour .

2) On the initial POWER ON, Defrost in F reezer will be operated after COMP ON total hour of 4 hr .

3) Defrost cycle changes automatically depending on the conditions from MIN 6 hr. to MAX 11 hr .

4) The judgment of defrost cycle shall be determined by peripheral temp, No. of DOOR OPEN in
Freez er/Refrigerator , and the time f or DOOR OPEN in F reez er/Refrigerator .

5) Point of Defrost HEATER OFF is (59 °F/15 °C) by the temp value of Freezer Defrost SENSOR.

● If F Defrost HEATER doesn’t reach to the point of Defrost OFF in 7 min., turn off forcibly and complete

Freez er-Defrost. ( Prev ention of inf erior HEATER OPEN or inferior Refrigerator Defrost Sensor )

Ice Level S/W

Eject Motor rotates

clockwise

Eject Motor rotates

counter clockwise

ON
OFF

ON
OFF

ON
OFF

Max TRAY twist Standby(2sec)

Restorating to
horizontal status

Completion
horizontal status

7-8) DEFROST

Initial
horizontal status

Ejecting

21

Function & How- to-use By Products

1) Button TOUCH
1-1) When selecting each button in the CONTROL PANEL, the verification sound (Ding Dong) of input shall

be heard.

1-2) In the case of pressing more than two KEYS at the same time or pressing the wrong button, the sound

shall not be heard.

2) DOOR-OPEN
2-1) After passing 2 min. consecutively as F reezer/Refrigerator DOOR opened, SOUND alarm (Ding Dong)

shall be heard.

2-2) If the door is still open afterward, sound alarm will be circulated to SOUND (Ding Dong) generating

movement at the interval of a min.

2-3) Alarm stops when Freezer/Refrigerators are all closed.

1) In the case of instant power failure and initialization of PANEL DISPLAY, these can make customer’s NON-

SENSE CALL. To avoid this, if power is applied, it judges the temp of F reez er and operates as either
initialization or restoration of operation conditions.

2) With initial POWER ON, it judges the temp of F reezer and if it is below (+41°F/+5°C), it is judged as instant

power failure while operating and restoring the functions related to PANEL DISPLAY such as Power freezing,
CHILD LOCK and Freezer/Refrigerator settings.

3) With initial POWER ON, it judges the temp of F reezer and if it is abov e (+41°F/+5°C), it is judged as e xtended

power failure and PANEL DISPLAY will be initialized (Automatic setting at (-4°F/-20°C) for F reezer and
(37.4°F/3°C) f or Refrigerator).

● When pressing Refrigerator temp set KEY and ICE TYPE KEY in P ANEL PCB simultaneously f or more than

8 sec. PANEL DISPLA Y will go off and it mov es onto TEST MODE. At this point, although
Freez er/Refrigerator temp set KEY, P ow er freezing KEY, and ICE TYPE KEY are pressed, it operates by
TEST KEY.

● When pressing TEST KEY, T est function shall be changed in the order as Forced Oper ation ---> F orced

Freez er Defrost---> Cancellation(normal operation)---> Forced Operation. If functions are canceled during the
operation of TEST function, it is most desirable to turn off the power and turn it on again.

7-9) ALARM

7-10) RESTORATION OF OPERA TION CONDITIONS FOR PO WER FAILURE

7-11) TEST (FORCED OPERA TION / FORCED DEFR OST)

Press for 8 sec

RS2630SW/XAA (for Best Buy)

22

Function & How- to-use By Products

Press for 8 sec

Press for 8 sec

Press for 8 sec

RS2531**/RS2631

**

RS2521**/RS2621

**

RS2511**/RS2611

**

1) Forced Operation
1-1) When pressing TEST KEY once in TEST MODE, Forced Operation shall be selected and with BEEP

sound, alarm will be operated.

1-2) If Forced Operation is selected, COMP. operates instantly without 5 min. delay in any Operation MODE.

At this point, if it is in Defrost, Defrost will be stopped instantly .

1-3) With the selection of Forced Operation, COMP. and Freezer FAN operate for 24 hr. contin uously and

Refrigerator shall be regulated by set temp while Forced Operation continues until the completion of
forced operation or the conv ersion to other MODE (f orced Freezer Defrost) or cancellation.

1-4) With the selection of Forced Operation, F reez er will be selected at “ MAX(-13 °F/ -25 °C) ”and

Refrigerator will be set at “ MID (35.6 °F/ 2 °C) ”automatically. Howev er , although f orced defrost or test
cancellation are selected after a minute while selecting forced operation, set temp will not change.
(Maintaining “ MAX (-13 °F/ -25 °C) ” and “ MID(35.6 °F/ 2 °C) ” ) If forced defrost or test cancellation are
selected in a minute while selecting forced operation, set temp will go back to the pre vious set temp
before “ MAX (-13 °F/ -25 °C) ” and “ MID (35.6 °F/ 2 °C) ” .

1-5) On the completion of Forced Operation (24 hr .), Freezer defrost will operate regardless of the previous

state.
1-6) After the above items, it operates under the conditions of normal defrost by judging case by case .
1-7) If it is cancelled randomly during Forced Operation, (On changing into cancellation Mode), the time for

COMP. ON during forced operation shall be calculated in total and reflected in defrost cycle.
1-8) During Forced Operation, P ow er freezing doesn’t function and with the selection of function, LED

indication for the selected POWER function will be off after 10 sec.

23

Function & How- to-use By Products

2) Forced Defrost
2-1) When pressing TEST KET twice in TEST MODE, Freezer defrost will operate and BEEP sound alarm

shall be heard.
2-2) BEEP sound alarm shall operate until the completion of HEATING and pause.
2-3) With the selection of forced F reezer defrost, it will operate regardless of the point of normal Heater On

and complete defrost while comparing the temp of the point of HEA TER OFF.

3) TEST Cancellation MODE
3-1) When converting DISPLAY P ANEL into TEST MODE and pressing TEST button one more time during

Freeaer Defrost, Freezer Defrost will be cancelled and restored to normal operation. Also, if MAIN
POWER is turned on again after being turned off, all the TEST functions will be canceled.

● When pressing Freezer KEY and ICE TYPE KEY on the front Display PANEL simultaneously for 8 sec. It will

operate as Exhibition Mode with Ding Dong sound.

7-12) EXHIBITION MODE

Press for 8 sec

Press for 8 sec

Press for 8 sec

RS2531**/RS2631

**

RS2521**/RS2621

**

RS2630SW/XAA (for Best Buy)

24

Function & How- to-use By Products

● If the temp of Freezer/Refrigerator increases more than (149 °F/ 65 °C) in Exhibition Mode, it will restore to

normal operation mode.

● Contents of operation in Exhibition Mode DISPLA Y, FAN MOTOR, and DISPENSER will operate normally

except f or Comp . and C-FAN.

7-13) SELF-DIAGNOSIS

Press for 8 sec

Press for 8 sec

RS2511**/RS2611

**

RS2531**/RS2631

**

RS2521**/RS2621

**

RS2511**/RS2611

**

RS2630SW/XAA (for Best Buy)

Press for 8 sec

Press for 8 sec

Press for 8 sec

25

Function & How- to-use By Products

1) Self-diagnosis with initial POWER ON
1-1) With POWER ON, it shall diagnose the status of temp SENSOR in a minute in MICOM internally for itself.
1-2) If inferior sensor is found after self-diagnosis, corresponding DISPLAY LED will be all off at the interval of

0.5 sec. and there will be no sound with LED ON.

1-3) In the state that inferior sensor is found and DISPLAY ICON is off, it only recognizes self-diagnosis KEY

(Press Ice Type KEY + FIL TER RESET KEY(LIGHT KEY) f or 8 sec.) and normal temp control will be on
hold.

1-4) On self-diagnosis ERROR, if inferior sensor is fixed or if y ou press ICE TYPE KEY + FILTER RESET

KEY(LIGHT KEY) for 8 sec., it will be canceled automatically.

2) Self-diagnosis during normal operation
2-1) When pressing “ ICE TYPE ” and “ FILTER RESET(LIGHT) ” KEYS simultaneously for 6 sec. in normal

operation of the fridge, temp set DISPLAY will be All ON/OFF for 2 sec. at the interval of 0.5 sec. and
when pressing “ ICE TYPE ” and “ FILTER RESET(LIGHT) ” KEYS simultaneously for 8 sec. including

TOGGLE f or 2 sec., self-diagnosis will be selected.
2-2) At this point, “ SOUND ”shall be heard and it operates self-diagnosis.
2-3) When self-diagnosis operates, entire LED will be OFF and only relevant LED with malfunction will be ON

/ OFF repeatedly signifying defects. (Ref er to the below self-diagnosis CHECK LIST)
2-4) When an ERROR occurs, it will be indicated for 30 sec. and restored to the normal status regardless of

maintenance.
2-5) During self-diagnosis KEY input will not be recognized.

NO Item DISPLAY LED Trouble Shooting Remark

01

02

03

04

05

06

07

Refrigerator

SENSOR

Peripheral temp

SENSOR

Freezer SENSOR

Freezer Defrost

SENSOR

Freezer Defrost

ERROR

I/M Function

ERROR

I/M SENSOR

ERROR

Refrigerator "MID"

Refrigerator "MIN"

Freezer "MAX"

Freezer "MID"

Freezer "MIN"

ICE OFF

Cubed LED

Fall out SENSOR HOUSING in Refrigerator
contanct failture, breakage of wire, short-circuit,
inferior Refrigerator SENSOR and others.

Fall out peripheral temp SENSOR HOUSING ,
contact failure, breakage of wire, short-circuit,
inferior peripheral sensor and others.

Fall out SENSOR HOUSING in Freezer, contact
failure, breakage of wire, short-circuit, inferior
Freezer SENSOR and others.

Fall out Deforst -SENSOR HOUSING in the
evaporator of Freezer, contact facilure, breakge
of wire, short-circuit, inferior sensor and
others.

Fall out Freezer Heater Housing, contact failture,
breakage of wire, short circuit, inferior Freezer
Heater, or inferior Defrost temp fuse and etc.

Ejection restoration failure more than 3 times.

Fall out I/M SENSOR HOUSING, contact
failure, brekage of wire, short-circuit, inferior
I/M-SENSOR and etc.

Indicating a defect when the temp sensing of
Refrigerator SENOSR is above (149 °F/65 °C)
and below (-58°F/-50 °C).

Indicating a defect when the temp sensing of
peripheral temp SENOSR is above (149 °F/65 °C)
and below (-58°F/-50 °C).

Indicating a defect when the temp sensing of
Freezer SENOSR is above (149 °F/65 °C) and
below (-58°F/-50 °C).

indicating a defect when the temp sensing of
Freezer Defrost SENOSR is above (149 °F/65 °C)
and below (-58°F/-50 °C).

On Freezer Defrost 90 min. automatic completion

 Details of self-diagnosis lighting by

26

1)

When pressing “ICE TYPE” and “FILTER RESET(LIGHT)” KEYS simultaneously for 6 sec. in normal
operation, the indicators of temp set in F reez er/Refrigerator will all ON/OFF f or 2 sec. at the interval of 0.5 sec.
At this point, when pressing Temp Set Key in Refrigerator while canceling “ICE TYPE” and “FILTER
RESET(LIGHT)” KEYS, it operates load status displa y.

2) Load status display will show the load in operation REAL TIME.
However, it is not related to real status of operation of load and it only shows the directed status of the load
operation command from MICOM.

3) Only corresponding ICON for the load in operation will be ON/OFF repeatedly and turned off.

4) Load status display will continue for 30 sec. and it will restore to the normal state.

Function & How- to-use By Products

7-14) LOAD STA TUS DISPLAY

 Press f or 6 sec

 Press after 

 Press f or 6 sec

 Press after 

 Press f or 6 sec

 Press after 

RS2531**/RS2631

**

RS2521**/RS2621

**

RS2511**/RS2611

**

RS2630SW/XAA (for Best Buy)

 Press f or 6 sec

 Press after 

27

● When the F-Room Temp Setting button and the Filter Reset button or the Lighting button are pressed f or 12

seconds continuously,the display will be converted to the option setting mode.

7-15) OPTION SETTING

NO ITEMS DISPLAY LED PROBLEM

01
02
03
04
05
06
07
08
09

Damper

Condition for

over load

Condition for

low temp

COMP

Freezer Defrost

Heater

Freezer FAN

Exhibition Mode

Dispenser Heater

Damper Heater

Refrigerator "MIN" (1’st)

Refrigerator "MID" (3’rd)

Refrigerator "MAX" (5’th)

Freezer "MIN" (1’st)

Freezer "MID" (3’rd)

Freezer "MAX" (5’th)

ICE OFF

CUBE LED

CRUSH LED

LED ON whenDamper is open

LED ON when Ambient temp is over (95°F/35 °C)

LED ON when ambient temp is lower than (62.6 °F/17 °C)

Relevant LED ON whenCOMP operates

LED ON when Freezer Defrost Heater operates

Relevant LED ON when Freezer-FAN HIGH operates

LED ON in Display mode

Relevant LED ON when Dispenser Heater gets ON

Relevant LED ON when Damper Heater gets ON

 Details b y LED ON locations indicating load status

Press for 12 sec

Press for 12 sec

RS2630SW/XAA (for Best Buy)

Function & How- to-use By Products

RS2531**/RS2631

**

Press for 12 sec

28

1) For e xample,,if y ou want to shift the Refrigerator STD temp by (34.7°F/1.5 °C), proceed the follo wing.

It is to shift the standard temperature.The F-Room standard temp is 3 °C(MID).When it is shifted (34.7°F/1.5
°C) by using the option,the standard temp will be set to (40.1°F/4.5 °C) i.e.when the temp option is changed, it
will be controlled to (40.1°F/4.5 °C) internally ev en though it is set to MID on the displa y panel..So , shifting the
standard temperature by (34.7°F/1.5 °C) means that it is controlled by (34.7 °F/1.5 °C) increase than the temp
set on the display panel.
1-1) As shown in the draft,press the F reezer b utton and the FILTER RESET BUTTON OR LIGHTING

BUTTON f or 12 seconds simultaneously.

- Except the Freezer &the Fridge LEDs,all LEDs will be turned off.

1-2) When it is changed to the option mode,all of the OPTION CATEGORY (I1~I5)and,the OPTION SETTING

(V1~V4) will display "0"(ALL OFF).
(The option should be set °∞0 °±for shipment,b ut this standard set value could be changed and shipped
for quality improv ement during mass production.)

- The LED arrangements of the OPTION CATEGORY and the OPTION SETTING for diff erent specs are
as follows.

(For the Value Spec,the Dispenser LED is used due to the insufficient number of panel LEDs.)

Function & How- to-use By Products

RS2521**/RS2621

**

RS2511**/RS2611

**

Press for 12 sec

Press for 12 sec

I1
I2
I3
I4
I5

V1

V2
V3
V4

DIS PENSER LED

NO ICE

FRIDGE MIN (COLD)

FRIDGE MID

FRIDGE MAX (COLDEST)

FREEZER MIN
FREEZER MID

FREEZER MAX

CUBED (ICE)

CRUSHED(ICE)

NO ICE

FRIDGE MIN (COLD)

FRIDGE MID

FRIDGE MAX (COLDEST)

FREEZER MIN
FREEZER MID

FREEZER MAX

CUBED (ICE)

FRIDGE MIN

FRIDGE MID-M IN

FRIDGE MID

FRIDGE MID-M AX

FRIDGE MAX

FREEZER MIN

FREEZER MID-MIN

FREEZER MID

FREEZER MID-MAX

RS2 *1

*

RS2 *2

*

RS2 *3

*

29

Function & How- to-use By Products

APP .EX)TO DECREASE FREEZER STANDARD TEMP BY (-5.4°F/-3°C).

Option Setting

(6:(-5.4°F/-3°C))

Option CATE.

(0:Freez er Standard Temp)

1-3) If you set "10"as shown in the F reezer option tab le below after setting "1"to the OPTION CATEGOR Y,the

Refrigerator standard temp will be lowered by -5.4°F(Ref er to the Refrigerator Temp Option Table)
:In 20 seconds after completion of adjustment,the MICOM will store the set value to the EEPROM and
it will revert to the normal display and the option setting mode will be cancelled.

1-4)To increase/decrease the OPTION CATE., press the F ridge button and the Filter Reset(or Lighting

button)respectively and to increase/decrease the OPTION SET VALUE, press the Freezer button and the
Ice Type button respectively.

1-5)The option function will be set in the EEPROM before shipment,so do not change the setting except

special cases.For the option function, the setting will be completed when it is rev erted to the normal
display in 20 seconds. So , do not turn off the power bef ore it is re v erted to the normal display.

1-6) Make sure to set the OPTION CATE.(I1~I5)first and then set the OPTION SETTING(V1~V4).

Note) Basically,refrigerators are shipped with option data cleared.

i.e.products are shipped with set values all "0".But,for quality impro v ements during MP,refrigerators could
be produced with set values changed.So,mak e sure to chec k the Quality Information.

Value- Value+

V1 V2 V3 V4

Item+

I1 I2 I3 I4 I5

Item-

Option Setting

(6:(-5.4°F/-3°C))

Option CATE.

(0:Freez er Standard Temp)

Value- Value+

V1 V2 V3 V4

Item+

I1 I2 I3 I4 I5

Item-

RS2630SW/XAA (for Best Buy)

RS2531**/RS2631

**

30

Function & How- to-use By Products

APP .EX) TO INCREASE REFRIGERATOR STAND ARD TEMP BY (2.7°F/1.5°C)

APP .EX) TO INCREASE REFRIGERATOR STAND ARD TEMP BY (2.7°F/1.5°C)

Option Setting

(10: 2.7°F/1.5°C)

Option Cate

(1:Refrigerator Standard Temp)

Value- Value+

V1 V2 V3 V4

Item+

I1 I2 I3 I4 I5

Item-

Option Setting

(10: 2.7°F/1.5°C)

Option Cate

(1:Refrigerator Standard Temp)

Value- Value+

V1 V2 V3 V4

Item+

I1 I2 I3 I4 I5

Item-

Value- Value+

V1 V2 V3 V4 I1 I2

Item+

I3 I4 I5

Item-

RS2630SW/XAA (for Best Buy)

RS2531**/RS2631

**

APP .EX)TO LO WER FREEZER STANDARD TEMP BY (-5.4°F/-3°C).

RS2521**/RS2621

**

RS2521**/RS2621

**

Option Setting

(6:(-5.4°F/-3°C))

Option CATE.

(0:Freez er Standard Temp)

Value- Value+

V1 V2 V3 V4 I1 I2

Item+

I3 I4 I5

Item-

Option Setting

(10: 2.7°F/1.5°C)

Option Cate

(1:Refrigerator Standard Temp)

31

Function & How- to-use By Products

APP .EX) TO INCREASE REFRIGERATOR STAND ARD TEMP BY (2.7°F/1.5°C)

Value- Value+

V1 V2 V3 V4 I1 I2

Item+

I3 I4 I5

Item-

APP .EX)TO LO WER FREEZER STANDARD TEMP BY (-5.4°F/-3°C).

RS2511**/RS2611

**

RS2511**/RS2611

**

Option Setting

(6:(-5.4°F/-3°C))

Option CATE.

(0:Freez er Standard Temp)

Value- Value+

V1 V2 V3 V4 I1 I2

Item+

I3 I4 I5

Item-

Option Setting

(10: 2.7°F/1.5°C)

Option Cate

(1:Refrigerator Standard Temp)

Dispenser LED

Dispenser LED

32

Function & How- to-use By Products

Note) With the Freezer b utton and the Lighting b utton, additional options can be set.

But, those are relevant not to the A/S b ut to the ref .control function. So , those options are skipped.
(Do not change any other options except the abov e options.)

1) FREEZER TEMP SHIFT TABLE(: RELEV ANT LED OFF, : RELEV ANT LED ON)

2) REFRIGERATOR TEMP SHIFT TABLE(: RELEVANT LED OFF, : RELEV ANT LED ON)

7-16) OPTION TABLE

SET ITEM

MODEL

SET VALUE

Option Value

COMMON

DISPLAY

Option Item

VALUE I1 I2 I3 I4 I5

0

 

VALUE V1 V2 V3 V4

0
1
2
3
4
5
6
7

0°F /0 °C

-0.9 °F/-0.5 °C

-1.8 °F/-1.0 °C

-2.7 °F/-1.5 °C

-3.6 °F/-2.0 °C

-4.5 °F/-2.5 °C

-5.4 °F/-3.0 °C

-6.3 °F/-3.5 °C





































8

9
10
11
12
13
14
15

0.9°F/+0.5 °C

1.8 °F/+1.0 °C

2.7 °F/+1.5 °C

3.6 °F/+2.0 °C

4.5 °F/+2.5 °C

5.4 °F/+3.0 °C

6.3 °F/+3.5 °C

7.2 °F/+4.0 °C





































SET VALUE

Option Value

COMMON

VALUE V1 V2 V3 V4

Freezer TEMP SHIFT

AD -PJT

SET ITEM

MODEL

SET VALUE

Option Value

COMMON

DISPLAY

Option Item

VALUE I1 I2 I3 I4 I5

1

 

VALUE V1 V2 V3 V4

0
1
2
3
4
5
6
7

0°F /0 °C

-0.9 °F/-0.5 °C

-1.8 °F/-1.0 °C

-2.7 °F/-1.5 °C

-3.6 °F/-2.0 °C

-4.5 °F/-2.5 °C

-5.4 °F/-3.0 °C

-6.3 °F/-3.5 °C





































8

9
10
11
12
13
14
15

0.9°F/+0.5 °C

1.8 °F/+1.0 °C

2.7 °F/+1.5 °C

3.6 °F/+2.0 °C

4.5 °F/+2.5 °C

5.4 °F/+3.0 °C

6.3 °F/+3.5 °C

7.2 °F/+4.0 °C





































SET VALUE

Option Value

COMMON

VALUE V1 V2 V3 V4

Refrigerator TEMP SHIFT

AD -PJT

33

Check assembly of

wires and do repairing

8. Diagnostics

8-1) When power is not supplied

1. Check if power is supplied at Concent and Power Cord is connected properly before repair

2. Check by ref erring to the f ollowings .

Is Power of primery

DC -TRANS applied?

Start

NO

Change DC-TRANS

Is Power of secondary

DC - TRANS applied?

NO

PCB. REG101 Change /PCB Change

Is 12V terminal normal?

NO

Change PCB. REG102 /

Change PCB

Is 5V terminal normal?

NO

Do repairing

Are wire connections of

PANEL PCB normal?

NO

Change PANEL PCB

Is PANEL PCB normal?

NO

YES

YES

YES

YES

YES

YES

Change MAIN PCB ASS'Y

Pre-Check

1) Ambient Sensor trouble => (applied to Ambient Sensor Temp type)

34

Diagnostics

8-2) When there is a trouble with Self Dia gnosis

Change Ambient Sensor

Is Ambient Sensor

normal? (PANEL PCB)

Start

NO

YES

Connector contact trouble

/re-insertion

Is MAIN PCB (CN31)

insertion normal?

NO

YES

Short between connector Sensors

Is the connection wire between

MAIN PCB connector(CN32) and Temp Sensor

normal (PANEL PCB)?

NO

YES

Change Sensor

Is the voltage of Ambient

Sensor of MAIN PCB Connector (CN31) normal?

NO

YES

Check soldering fault,short,

Lead Touch

Is MICOM Pin#54 input

voltage normal?

NO

(0.5V> Measured value)

(0.5V> Measured value>4.5V)

YES

Check Main/Panel PCB

again, Change

Change Temp Sensor

Is Refrigerator Temp Sensor

normal?

Start

NO

YES

Connector contact trouble

/re-insertion

Is the insertion of MAIN PCB

connector(CN30) normal?

NO

YES

Short between connector Sensors

Is the connection between

MAIN PCB connector(CN30) and Temp

Sensor(purple) normal?

NO

YES

Check soldering fault,short,

Lead Touch

Is MICOM Pin#51 input

voltage normal?

NO

YES

Change MAIN PCB

2) Refrigerator Temp Sensor trouble

35

Diagnostics

Change Temp Sensor

Is Freezer Temp Sensor

normal?

Start

NO

YES

Connector contact trouble

/re-insertion

Is the insertion of MAIN PCB

connector(CN30) normal?

NO

YES

Short between connector Sensors

Is the connection between

MAIN PCB connector(CN30) and Temp

Sensor(yellow) normal?

NO

YES

Check soldering fault,short,

Lead Touch

Is MICOM Pin#57 input

voltage normal?

NO

YES

Change MAIN PCB

Change Defrost Sensor

Is Defrost Sensor

normal?

Start

NO

YES

Connector contact trouble

/re-insertion

Is MAIN PCB (CN30)

insertion normal?

NO

YES

Short between connector Sensors

Is the connection wire between

MAIN PCB connector(CN30) and

Defrost Sensor (blue) normal?

NO

YES

Check soldering fault, short,

Lead Touch

Is MICOM Pin#58 input

voltage normal?

NO

YES

Change MAIN PCB

4) Defrost Sensor trouble

3) Freez er Temp Sensor trouble

36

Run Forced Operation

Diagnostics

8-3) When COMP does not operat

1. If it doesnotpass5 min after a desired Temp reached, COMP does not operate.

2. During Defrost, COMP does not operate.

3. With the disconnected Freez er Sensor or Refrigerator Sensor , COMP does not oper ate because MAIN PCB picks
up theTemp as a desired level.

Is Forced Operation on?

Start

NO

Soldering checkout/

Change MICOM or PCB

Is the MICOM #29 output

"HIGH"(5V)?

NO

Change or repair IC3/

Change PCB

Is the IC3 #15

"LOW"?

NO

Change or repair RELAY /

Change PCB

Is COMP RELAY normal?

NO

Insert Connector completely /

Check its connection

Is contact of CONNECTOR

CN71 #13contact normal

NO

Change/repair COMP

Does COMP ASS'Y

Function normally?

NO

YES

YES

YES

YES

YES

YES

Check wire

assembly/connection

Pre-Check

37

MICOM voltage
DOOR OPEN : 5V
DOOR CLOSE : 0V

Diagnostics

8-4) When FAN & D AMPER does not operate

"Check out the F-FAN with the Forced Operation selected"

1. Freez er FAN, Refrigerator DAMPER and COMP COOLING FAN remains off while COMP is turned off.

2. When Comp is ON, Damper does not always remain ON (including F orced Oper aation) and when Refrigerator
temp reaches to set temp, Damper remains OFF.

3. When R-Room & Freez er get closeed after being opened, each F an & Damper starts up immediately.
(Comp ON condition)

1) When Freezer FAN(F-F AN) does not operate

Start Forced Operation

Is it during

Forced Operation?

Start

NO

YES

Normal F-FAN

Does Fan operate with

DOOR S/W presses?

YES

YES

Change DOOR S/W

Is DOOR S/W normal?

NO

YES

Check soldering / Change PCB

Is voltage of MICOM

#49 normal?

NO

YES

Re-insert Connector CN71

Is insertion of

CN71(W/BLUE) of MAIN

PCB normal?

NO

YES

Check soldering / Change PCB

Is voltage of MICOM

Pin #34 "HIGH"(5V)?

NO

YES

Check soldering / Change PCB

Is IC3 #17 "LOW"?

NO

YES

Check RELAY / Change PCB

Is Freezer-Fan RELAY normal?

NO

YES

Re-insert Connector CN71

Is insertion of

CN71(BLUE) of MAIN PCB

normal?

NO

YES

Change or repair FAN

Is FAN ASS'Y normal?

NO

YES

Check wire assembly & connection status

Note

38

Diagnostics

MICOM voltage
DOOR OPEN : 5V
DOOR CLOSE : 0V

MICOM voltage
0  V alteration

2) When Refrigerator DAMPER does not operate

Forced Operation/

Temp Increase

Is DAMPER in

operating conditions?

Start

NO

YES

DAMPER is normal

Does DAMPER operates

with DOOR S/W pressed?

YES

NO

Change DOOR S/W

Is DOOR S/W normal?

NO

YES

Check soldering/

Change PCB

Is voltage of MICOM

#50 normal?

NO

YES

Check Connector CN75

again

Is insertion of CN75 of

MAIN PCB normal?

NO

YES

Check soldering/

Change PCB

Are voltage of MICOM

Pin #44,45,46 outputed?

NO

YES

Change DAMPER

Is DAMPER normal?

NO

YES

Check wire assembly and connections between

Dampers

39

Diagnostics

Operate Forced Operation

Is COMP operating?

Start

NO

Stand by for FAN ON condition

Confirm FAN operating condition

Is it COMP COOLING FAN ON

condition?

NO

Check soldering / Change PCB

Is MICOM Pin #31

"HIGH"(5V)?

NO

Check soldering / Change PCB

Is IC3 #17

"LOW"?

NO

Check Relay / Change PCB

Is RELAY(RY77)

normal?

NO

Check contact of Connector

CN71 again

Is contact of Connector

CN71(ORANGE) normal?

NO

YES

YES

YES

YES

YES

YES

Check wire assembled status of

FAN MOTOR

3) When Comp Cooling Fan does not operate

Comp Fan

DELAY

Higher than (64.4 °F/18 °C)

Comp Fan operates immediately

upon COMP ON

Lower than (53.6 °F/12°C) Comp Fan gets off regardless of COMP

Ambient Temp Range Load Operation Status

Between (55.4 °F/13 °C)

and (62.6 °F/17°C)

Comp Fan operates in 5 min after COMP ON

40

COMMON RELAY RY71
Defrost Heater RY72
RELAY CHECK
REFERANCE

Diagnostics

8-5) When Defrost does not operate

1. With a shorted-out Defrost Sensor, the fridge operates normally excepting Defrost(The fault can be pic ked up

with self-diagnosis, POWER ON/OFF).

2. There will be Heating trouble with a shorted-out Temp FUSE, which contributes to Defrost by natural Temp

increase resulting in a Temp Control problem stemmed from the increased COMP OFF time.

3. When Defrost Sensor is faulty as OPEN, Heating will not be terminated, and COMP will remain off following

the Temp FUSE short-off.(The fault can be pic k ed up with self-diagnosis, PO WER ON/OFF)

Maintain Forced Operation for a

certain time

Dose Defrost work upon

Forced Defrost KEY pushed?

Is concerned Defrost Sensor

Temp higher than 12 °C?

Start

NO

NO

YES

YES

Is power supplied to

Defrost Heater?

YES

NO

Check soldering, Change PCB

Is MICOM #30

"HIGH"(5V)?

NO

YES

Check IC3 / Change PCB

Is output #16 of IC3

low?

NO

YES

Check RELAY / Change PCB

Is Defrost Heater

Relay (RY76) normal?

NO

YES

Check contact of Connector CN71

again

Is contact of Connector

N71(browwn) normal?

NO

YES

Change Bimetal

Is Bimetal in EVAP.

normal?

NO

YES

Change EVAP. ASS'Y

Is Defrost Heater

shorted out?

YES

NO

Check wire assembly

Pre-Check

A

41

Diagnostics

Concerned Sensor
resistance measurement
(Appendix TABLE)

Concerned Sensor
resistance measurement
(Appendix TABLE)

Normal

Does the Function return to

the normal after Heating ?

YES

NO

Change concerned Sensor

Is each concerned

Defrost Sensor Temp higher than the

terminated Temp?

Is the input voltage of

MICOM #9 higher than the voltage upon

the terminated Temp?

NO

YES

YES

Change Temp pick-up part,

Change PCB

NO

Change PCB

A

42

MICOM Voltage
#49; F-Room,
#50; R-Room
DOOR OPEN : 5V
DOOR CLOSE : 0V

Diagnostics

8-6) When Alarm Sound continues without stop

1. When Door gets open, Door Open alarm ("Ding Dong") goes off in 2 minutes with Door opened.When Door

remains open after this, the alarm goes off every minute.

2. When Door Switch is not pressed well, MICOM considers it as opened and alarming sound goes off.

Room Lamp becomes OFF in 10 minutessince it detectsDoor Open (based on R600a).In this case, ev en though
Door gets opened, Room Lamp does not comes ON.

1) When “Ding Dong ” sound continues
Start

Chhange PCB / Check ON/OFF again

Note

Contact trouble of Connector,

Insert it again

Is insertion of MAIN

PCB Connector (CN30)

normal?

YES

NO

Repair DOOR S/W

pressing part

Does DOOR S/W come

in & out well?

YES

NO

Check wire of DOOR SWITCH

Is voltage of MICOM

#49,#50 according DOOR

SWITCH ON/OFF?

YES

NO

2) When “Beep Beep ” sound continues
Start

Check Lead Touch & foreign substances

around TEST S/W (MICOM #47)

Cancel Forced Operation/ Defrost

Is Forced Operation/

Defrost selected?

NO

YES

PCB is normal

Does buzzing sound go

off when plugging out

and plugging in again?

YES

NO

43

Diagnostics

1. "Beep-Beep" sounds do not go off except F orced Operation & F orced Defrost.

2. It is checckableatP anel PCB when F orced Oper ation or F orced Defrost is selected, so when error occurs ,
check it andcorrect theerror .

Note

Re-insert Connector,

Check contacts

Is Connector of Upper

Hinge Cover inserted well?

Start

NO

YES

Re-insert MAIN PCB Connector,

Check contacts

Is insertion of MAIN PCB

Connector (CN50) normal?

NO

YES

Re-insert PANEL PCB Connector,

Check contacts

Is inssertion of PANEL

PCB Connector normal?

NO

YES

Re-assemble PANEL PCB COVER

Is there any

pressed KEY?

NO

YES

Change PANEL PCB

4) When PANEL PCB KEY is not selected

3) When PANEL PCB doesn’t light up

Check REG101 parts, Change PCB

Is MAIN PCB 12V normal?

(REG101)

Start

NO

YES

Re-insert Connector,

Check contacts

Is Connector of Upper

Hinge Cover inserted well?

NO

YES

Re-insert MAIN PCB Connector,

Check contacts

Is insertion of MAIN PCB

Connector (CN50) normal?

NO

YES

Re-insert PANEL PCB Connector,

Check contacts

Is inssertion of PANEL

PCB Connector normal?

NO

YES

Change MAIN PCB

44

Diagnostics

8-7) When Room Lamp does not light up

1. Because Room Lamp is basically controled with Door Switch, PCB does not control it.

1) When Freez er/Refrigerator Lamps do not light up

Start

Check wires again

Note

DOOR OPEN

Is DOOR OPEN?

YES

NO

Change DOOR SWITCH

Is DOOR SWITCH normal?

YES

NO

Change LAMP

Is Room LAMP(R,F)

normal?

YES

NO

45

Start

Diagnostics

8-8) Dispenser Lamp Malfunction

1. Long term LED Short when exchanging may result in the malfunction of PCB since Dispenser Lamp is high
brightness LED.

2. When changing the PCB, the power must be turned off .

Reconfirm connection wire
and Lamp PCB repair/change

Note

Ice & water S/W push
handle repair/change

Is ice & water S/W push

handle works well?

YES

NO

Ice & water S/W change

Is ice & water S/W

contact point works well?

YES

NO

Wire between dispenser

part and main PCB check/repair

Does PCB main part CN31

2, 3-4 have right

voltage output?

YES

NO

Connector check/repair

Does panel PCB CN2

connector connected well?

YES

NO

Connector check/ Main PCB

change (Main PCB CN50 and

Panel PCB CN1 connection check)

Does Panel PCB F-room

& R-room temperature

display work well?

YES

NO

 CHECK METHOD
Separate the switch and check
the resistance with teste.When
S/W is selected or stands by, 0
Ω or Ω is pick up.

1) Only 0 Ω is pick up : S/W
SHORT DEFECT

2) Only

Ωis pick up : S/W

OPEN DEFECT

 CHECK METHOD
Check the voltage with tester on
CN31 , When S/W is
selected or stands by, OV or5V
is pick up.

1) Only OV is pickup : S/W SHORT

DEFECT

2) Only 5V is pick up : S/W OPEN

DEFECT
*SHORT : LAMP always ON,
OPEN : LAMP always OFF

3) ICE S/W :

, WATER S/W

:



Check Water

Valve Operation

46

Diagnostics

8-9) When Water Valve Does Not Operate

1. While disassembling, make sure to cut off w ater since the water v alv e is directly connected with water.

2.Makesure toav oidthe electricshock while disassemb ling because one end of wire is applied with pow er .

3.Check operation of water v alv e only after the water switch is pressed

MAIN PCB Normal

-Check other parts

1) Wire between water value and main PCB

2) Water Value defect and Connection
Connector contact defect

3) Check Connection Hose defect

Pre-Check

Normal (check the

water valve hose)

Is valve operation

confirmation sound heard

when Water S/W pushed?

NO

YES

Soldering short

check/ PCB change

Does Main PCB MICOM #21

have high (+5V) output?

YES

NO

Soldering short

check/ PCB change

Does Main PCB MICOM #11

have low (0V) output?

YES

NO

Soldering short

check/ PCB change

Is the contact point of

main PCB RELAY RY71

normal?

YES

NO

Soldering short

check/ PCB change

Does the input voltage

occur between the main PCB CN70 ( W/BLK)

and CN71 ( GRY)

NO

YES

 Load check-up method

Check Water

Valve Operation

Reference

 Load check-up method

(0V upon Relay Operation)

Reference

47

Diagnostics

8-10) When Crush (Crushed Ice ) & Cube (Cubed Ice) does not operate well

Does Ice come out

when extracting Ice?

Is ice in Ice Box?

Is Ice Stop selected

in Ice Selection?

Start

 Check sharp-bent/ close

Water Supply Hose

 Check water supply part for

ICE, Check Solenoid

 Check ICE-MAKER wires

 Check Ice Extraction S/W
 Check DOOR S/W
 Check Ice Moving Motor
 Check wires o f Ice Moving Motor
 Check operation o f security related

Q702,Q401 of AUGER-MOTOR

Cancel Ice Stop

What about ice

selection?

MAIN PCB Normal

-- Check other parts

Check wires between AUGER MOTOR and

MAIN PCB

Faulty CUBE SOLENOIDE or faulty contacts

of Connector

NO

NO

NO

Crush

Does Cube Ice come

out upon extracting?

Normal operation

YES

NO

Is PANEL PCB Cube

selected?

Select Cube

NO

Is it in

Cube MOTOR Cube?

Check WIRE /

Check MOTOR

NO

Is DISPENSER ICE

S/W selected?

Select DISPENSER

ICE S/W

NO

Is Input Vac

outputted at MAIN PCB

CN70  & CN71 ?

Check WIRE /

Faulty MAIN

PCB -Change

YES

YES

YES

NO

YES

YES

YES

YES

CUBE

MAIN PCB Normal

-- Check other parts

Check wires between AUGER MOTOR and

MAIN PCB (SHORT/OPEN)

Does Crush Ice come

out upon extracting?

Normal operation

YES

NO

Is PANEL PCB Crush

selected?

Select Crush

NO

Is it in

Cube MOTOR Crush?

Check WIRE / Check &

repair MOTOR Cube

NO

Is DISPENSER ICE

S/W selected?

Select DISPENSER

ICE S/W

NO

Is Input Vac

outputted at MAIN PCB

CN70  & CN71 ?

Check WIRE /

Faulty MAIN

PCB -Change

YES

NO

YES

YES

YES

Operating condition is F-Room
Door closing condition.

272, Oseon-Dong, Kwangsan-Gu,
Kwangju-City, Korea, 506-253
TEL : [phone], 6811
FAX : [phone]

© Samsung Electronics Co., Ltd.

Refrigerator Division 2004. 7
Printed in Korea
Code : DA68-01369A

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This Service Manual is a property of Samsung Electronics Co., Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.

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