SAMSUNG RS21, RS23 Service Manual

SAMSUNG Home Appliance Service

For the latest parts information, please access to our service web site (http://www.e4buyer.com/refrigerator)

SIDE-BY-SIDE REFRIGERATOR

Model:

RS21** RS23**

WARNING

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

Technical Service Guide

Copyright 2002

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

3

Contents

1.SAFETY WARNINGS ·······································5

2.INSTRUCTION ···········································8

3.INSTALLATION ···········································9

4.NOMENCLATURE ········································10

5.SPECIFICATIONS·········································11

6.INTERIOR VIEWS AND DIMENSIONS ···························14

7.FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE·············19

8.MECHANICAL DISASSEMBLY ································21

9.FUNCTIONS AND OPERATION ·······························29

10.CIRCUIT DESCRIPTION ···································43

11.DIAGNOSIS AND TROUBLESHOOTING ·························52

●APPENDIX (REFERENCE FOR CIRCUIT DIAGNOSTICS) ··········64

●APPENDIX (CIRCUIT DIAGRAM) ···························67

12.ILLUSTRATED PARTS CATALOGUE ···························73

13.MACHINE ROOM ASSEMBLY SPECIFICATION ···················96

4

1. SAFETY WARNINGS

● Pull the power plug out already for the change or repair of electric parts.

→ Be careful the electric shock.

● When exchanging the parts, use the correct parts.

→ Check the model name, rating voltage, rating current, running temperature symbols.

● When troubleshooting, connect firmly the types of harness. → Make not to be separated when some power is imposed.

● Check the traces of water infiltration at the electric parts.

→ If there is a trace of water infiltration, exchange or tape the parts.

●Check the assemble status of parts after troubleshooting.

→ It should be done indiscriminately as before the repair.

●Check the use circumstance of refrigerator.

→ If the refrigerator is installed at the place that is damp or wet, or status of installation is unstable, change the installation place.

● Do earth in case of need.

→ Particularly, Be sure to earth when there is a risk of an electric leakage by humidity or wetness.

● Do not use multi plugs in a plug socket at the same time.

Check the power cord and socket is damaged, pressed, squeezed, or fired.

→ If the plug or plug socket is damaged, repair or exchange that immediately.

●Do not store the foods unstable or bottles in the freezing room.

●Do not repair the refrigerator by user himself.

●Do not store another materials except the foods.

→Drugs or scientific materials : difficult to keep a precise temperature.

→The inflammables(alcohol, benzene, ether, LP gas, butane gas etc.): have a risk of explosion.

5

1. SAFETY WARNINGS

Read all instructions before repairing the product and keep to the instructions in order to prevent danger or property damage.

CAUTION/WARNING SYMBOLS DISPLAYED

Indicates that a

danger of death Warning or serious injury

exists.

Indicates that a risk

of personal injury Caution or material damage

exists.

SYMBOLS

means “Prohibition”.

means “Do not disassemble”.

means “No contact”.

means ”The things to be followed”.

means “Power cord should be unplugged from the consent”

means “Earth to prevent Electric shock”.

Warning & Caution

Pull the power plug out to exchange the interior lamp of the refrigerator.

● It may cause electric shock.

Unplug

Use the rated components on the replacement.

●Check the correct model, rated voltage, rated current, operating temperature and so on.

componentsRated

On repair, make sure that the wires such as harness are bundled tightly.

●Bundle tightly wires in order not to be detached by the external force and then not to be wetted.

On repair, remove completely dust or other things of housing parts, harness parts, and check parts.

●Cleaning may prevent the possible fire by tracking or short.

After repair, check the assembled state of components.

●It must be in the same assembled state when compared with the state before disassembly.

Earth

Check if there is any trace indicating the permeation of water.

●If there is that kind of trace, change the related components or do the

necessary treatment such as taping using the insulating tape.

6

1.SAFETY WARNINGS

Please ler users know following warnings & cautions in detail.

Warning & Caution

Do not allow users to put bottles or	Do not allow users to store narrow	Do not allow users to store
kinds of glass in the freezer.	and lengthy bottles or foods in a	pharmaceutical products, scientific
●Freezing of the contents may inflict a wound.	small multi-purpose room.	materials, etc., in the refrigerator.
	●It may hurt you when refrigerator door is	●The products which temperature control
	opened and closed resulting in falling stuff	should not be stored in the refrigerator.
	down.

Prohibition

Prohibition

Prohibition

	Do not allow users to insert the	Do not allow users to	Do not allow users to bend the
	power plugs for many products	disassemble, repair or alter.	power cord with excessive force
	at the same time.	●It may cause fire or abnormal	or do not have the power cord
			pressed by heavy article.
	●May cause abnormal generation of	operation which leads to injury.
			●May cause fire.
	heat or fire.

Prohibition

Do not

disassemble

	Do not allow users to store	Do not allow users to install the	Make sure of the earth.
	articles on the product.	refrigerator in the wet place or
		the place which water splashes.	●If earthing is not done, it will cause
	●Opening or closing the door may cause
		●Deterioration of insulation of electric	breakdown and electric shock.
	things to fall down, with may inflict a
	wound.	parts may cause electric shock or fire.

Prohibition

Earth

7

2.INSTRUCTION

●SAMSUNG side by side refrigerator has the following characteristics.

Twin Cooling System

• The refrigerator and the freezer have two evapora

tors. Given this independent system, the freezer and the refrigerator are cooled individually as required and are, therefore, more efficient. Food odor from the refrigerator does not affect food in the freezer due to separate of air flow circulation.

Multi-Flow System

• Cool air circulates through multiple vents on every

shelf level. This provides even distribution of cooling inside cabinets to keep your food fresh longer.

Door Alarm

• A beeper reminds you if the door is left open.

High humidity for fresher food

•You can keep food, fruit and vegetables fresh for longer because your refrigerator supplies highly humidified cold air. This can be up to four or five times more effective than a normal refrigerator.

Energy-saving fridge/freezer

•Power consumption is kept to a minimum by distributing cool air separately to the refrigerator and freezer.

Faster cooling times

•The power freeze function allow you to freeze food more quickly.

Abundant supply of ice and cold water

•The ice and water dispenser provides ice and cold water at any time.

Beverage Station (optional)

•You do not have to open the main door to access frequently used food in the extra

refrigerating compartment. This saves time and money.

Deodorizer (optional)

•Reusable deodorizer keeps the refrigerator air fresh and odor free.

CoolSelect ZoneTMDrawer (optional)

• User can select Quick Cool, Thaw and Select buttons for quickly chill, thaw and cools items. Select Soft Freeze, Cool or Chill to control the temperature of drawer.

This operation instruction covers various models.

NOTE The characteristics of your appliance may differ slightly from those described in this manual.

8

3. INSTALLATION

1)To protect refrigerator in movement

Use padded hand truck as shown. If entrance width is less than 30 , remove doors prior to installation and reattach doors according to procedure below.

2) Remove all protective tape and pad in refrigerators.

Please 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 cool

You can store food in the refrigerator. After starting the refrigerator, it takes a few hours to reach the appropriate temperature.

● Disassemble the refrigerator		● Assemble the refrigerator
1)	2)	1)	2)

	1) With the door closed, disassemble screw( ) by		1) Insert the lower hinge ( ) in the bracket lower
	using (+) screw driver and then disassemble the
			hinge ( ).
	upper hinge cover( ).
	2) Disassemble bolts ( ) and screws ( ) to the		2) Assemble the door ( ) in the lower hinge ( ).
	counter-clockwise by using a tool, and take off the		3)	4)
	upper hinge ( ) along the arrow ( ). Take care
	when you disassemble the door to ensure that it does
	not fall on you.
	3)	4)
			3) Insert the upper hinge shaft ( ) into the hole ( ). After
			leveling between the upper hinge hole ( ) and the
			hole of the refrigerator ( ), assemble bolts ( )
	3) Disassemble the door from the lower hinge ( ) by		and screws ( ) to the clockwise by using a tool.
	lifting the door ( ).		4) Put the front part of the upper hinge cover ( ) on the
	4) Disassemble the lower hinge ( ) from the bracket		front part of the upper hinge ( ) and assemble,
	lower hinge ( ) by lifting the lower hinge ( ) in the		starting with the front part of the upper hinge
	direction of the arrow.		cover. Assemble the screw to the clock wise by
			using a tool.

9

4. NOMENCLATURE

R S 21 F C

COLOR

NOMAL SWSNOW WHITE(EMBO) MSSILVER MIST (THAI)

SVSNOW WHITE (VCM)	DBDAISY BEIGE
RSREAL STAINLESS	NSNOBLE STAINLESS
TRIM KIT : SGSILVER GLASS	LBILLUMANATE BLUE
MRMIRROR	TRTROPICAL RED
ALALUMINUM	NKNATURE KHAKI
NCNATURAL CHERRY	DWDARK WALNUT
BGBLACK GLASS

VOLUME

CATEGORY

S : SBS REFRIGERATOR

BRAND : R-SAMSUNG

Label Location

10

5. SPECIFICATIONS

5-1. Model Specification

	Item					Specification
Model(RS21)		Basic		Basic & H/B	Dispenser		Dispenser & H/B	Dispenser with	Dispenser & H/B
								CoolSelectZoneTM	CoolSelectZoneTM
	Total							520l
			557l			532l
Net Capacity	Refrigerator		346l			346l		334l
	Freezer		211l			186l		186l
Net dimension(W×D×H)				908mm 719mm 1760mm
Rated Frequency and Frequency						230 ~ 240V/50Hz
Motor Rated Consumption Power		155W					160W
Electric Heater Rated Consumption Power		401W		411W		413W	423W	413W	423W
Kind of Refrigerator				Indirect Cooling Method Refrigerator
Refrigerant						R600a
Refrigerant Input Amount						88g
Freezer Performance							(4-STAR)
Product Weight		111Kg		111Kg		117Kg	117Kg	120Kg	120Kg
	Item					Specification
Model(RS23)		Basic		Basic & H/B	Dispenser		Dispenser & H/B	Dispenser with	Dispenser & H/B
								CoolSelectZoneTM	CoolSelectZoneTM
	Total							553l
			594l			565l
Net Capacity	Refrigerator		369l			369l		357l
	Freezer		225l			196l		196l
Net dimension(W×D×H)				908mm 754mm 1760mm
Rated Frequency and Frequency						230 ~ 240V/50Hz
Motor Rated Consumption Power		155W					160W
Electric Heater Rated Consumption Power		401W		411W		413W	423W	413W	423W
Kind of Refrigerator				Indirect Cooling Method Refrigerator
Refrigerant						R600a
Refrigerant Input Amount						88g
Freezer Performance							(4-STAR)
Product Weight		121Kg		121Kg		127Kg	127Kg	130Kg	130Kg

11

5-2. Electric Parts Specification

Defrost Related Components Room Temperature Sensor Components Components for Freezer

Items

Models

Freezing Capacity

				Model
	Compressor			Starting type
				Oil Charge
	Evaporator			Freezer
				Refrigerator
		Condenser
		Dryer
		Capillary tube
		Refrigerant
Freezer		Model		Temperature Selection
		THERMISTOR		-25
		(F-SENSOR)		-20
		502AT		-14
Refrigerator		Model		Temperature Selection
		502AT		7
		THERMISTOR		1
		(R-SENSOR)		3
Cycle		First Defrost Cycle (Concurrent defrost of F and R)
		Defrost Cycle(FRE)
Defrost		Pause time
		Defrost Cycle(REF)
Sensor		F Defrost-		Model
		Sensor		SPEC
Defrost		Sensor
				SPEC
		R Defrost-		Model
				Rated
Thermal-Fuse
				Operating temperature

Specification

(4 STAR)

MK4A5Q-RIU

R.S.C.R

FREOL α- 15 (ESTER)

SPLIT FIN TYPE

SPLIT FIN TYPE

Forced and natural convection type

Molecular sieve XH-9

0.82×3000, 5.5 Kg/cm2

R600a

ON( )		OFF( )
-24.0		-26.0
-19.0		-21.0
-13.0		-15.0
ON( )		OFF( )
2.0		-1.0
4.0		2.0
8.0		6.0
	4 hr ± 10 min

12 ~ 24 hr (vary according to the conditions used)

6 ~ 12 hr (vary according to the conditions used)

10 ± 2 min

THERMISTOR (502AT)

5.0 at 25

THERMISTOR (502AT)

5.0 at 25

AC 250V 10A

77 (+0 /-5 )

12

		Items				Specifications
		Model			Basic	Dispenser		Home Bar
		Defrost-Heater(FRE)	Conducting at F Defrosting			215 W
		Defrost-Heater(REF)	Conducting at R Defrosting			110 W
		DRAIN Heater(FRE)	Conducting at F Defrosting			41 W
		DRAIN Heater(REF)	Conducting at R Defrosting			35 W
		DISPENSER Heater	Interlock with F-FAN		-	5W		5W
		HOME-BAR Heater	Interlock with COMP		-	-		10W
		WATER PIPE Heater	-		-	7W		-
		Thermal-Fuse for preventing
		overheating of Freezer Defrost-Heater			AC 250V 10A 77 (+0 /-5 )
		Thermal-Fuse for preventing
		overheating of Refrigerator Defrost-Heater
		Condenser for		Running		350VAC-5μF
		COMP
				Starting
	Components	(Package type)				-
				Model		4TM265RFBYY-53
		Starting-Relay		Model		J531Q35E330M385-2
				Operation		33Ω±20%
	Electric	Over-load Relay
				Temp. OFF		61 ±9
				Temp. ON		130 ±5
		Rated Voltage				230V/50,60Hz
		MOTOR-BLDC(FRE)				DC12V/DREP302ØCA
		MOTOR-BLDC(REF)				DC12V/DREP302ØCA
		MOTOR-BLDC (Circuit)				DC12V/DRCP302ØLA
		Lamp(FRE)				AC240V/30W
		Lamp(REF)				AC240V/30W×2
		Door Switch				AC250V 0.5A×2
		Door Switch (HOME-BAR)				AC250V 0.5A
		Power cord				AC250V 12A
		Earth Screw				BSBN (BRASS SCREW)

13

6. INTERIOR VIEWS AND DIMENSIONS

6-1. The Name of Each Part(Basic)

FREEZER

REFRIGERATOR

LAMP-INCANDESCENT

COVER-GUARD

SHELF

LAMP-INCANDESCENT

GUARD

SHELF

TRAY-ICE & CASE ICE

TRAY-CHILLED ROOM

CASE-BASKET

TRAY-EGG

COVER-LEG, FRONT

GUARD

CASE-VEGETABLE

14

6-2. Part Name (HOME BAR)

FREEZER

REFRIGERATOR

LAMP-INCANDESCENT

COVER-GUARD

SHELF

LAMP-INCANDESCENT

GUARD

SHELF

TRAY-ICE & CASE ICE

TRAY-CHILLED ROOM

CASE-BASKET

TRAY-EGG

COVER-LEG, FRONT

GUARD

CASE-VEGETABLE

HOME-BAR

15

6-3. Part Name (DISPENSER)

FREEZER

REFRIGERATOR

ICE-MAKER

COVER-GUARD

ICE-CHUTE

LAMP-INCANDESCENT

LAMP-INCANDESCENT

TRAY-CHILLED ROOM

SHELF

SHELF

GUARD

TRAY-EGG

CASE-BASKET

GUARD

COVER-LEG, FRONT

CASE-VEGETABLE

16

6-4. Part Name (DISPENSER / HOME BAR / CoolSelect ZoneTM)

FREEZER

REFRIGERATOR

ICE-MAKER

COVER-GUARD

ICE-CHUTE

SHELF

LAMP

SHELF-WINE

SHELF

LAMP

GUARD

HOME BAR

CASE-BASKET

SHELF

COVER-LEG, FRONT

CoolSelect ZoneTM

TRAY EGG

CASE-VEGETABLE

GUARD

17

6-5. Dimensions of Unit

				MODEL														“A”										“B”
						RS21			714(719)																		50
						RS23			754(759)																		85

18

7. FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE

7-1. Freezing Cycle

Compressor →Sub-condenser →Side Cluster Pipe(FRE) →Side Cluster Pipe(REF) →Hot Pipe

→ Dryer → Capillary Tube → Refrigerator Evaporator → Freezer Evaporator→ Suction Pipe → Compressor

Refrigerator Evaporator
	SIDE CLUSTER PIPE
ACCUMULATOR
Freezer Evaporator
	Dryer
	Hot Pipe
SUCTION PIPE
SUB-CONDENSER
	Capillary Tube
Muffler	Compressor
	Hot Pipe
	19

7-2. Cooling Air Circulation

Freezer	Refrigerator
	20

8. MECHANICAL DISASSEMBLY

8-1. Freezer Disassembly

Control Panel

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

2.Disconnect the wire connector in the back of control panel

Door Gasket

The door gasket is set into groove on door liner 1.Open the door.

2.Grasp the gasket and pull it out from the door liner.

Light SWITCHES

The unit have two light switches on the side wall of freezer & refrigerator.

1.Use a small flat-blade screw driver to unlock the hook and pull the switch out until the wire connector is exposed.

Lights (Dispenser MODEL)

The light of freezer is located at lower side of Auger motor case.

1.Remove ice bucket.

2.Remove the lamp cover by releasing the screw. 3.Change the bulb(rated component)

1

2

3

21

Lights (Basic MODEL)

Refer to Refrigerator Disassembly Disassemble/assemble method is same as the light in refrigerator

Door Guard in FREEZER

Lift the guard up and pull it out from door liner

Shelves

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

2.Lift it up and pull it out from the unit.

Drawers in FREEZER

The drawers are located at bottom side of freezer.

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

2.Lift it up slightly and pull it out from the unit.

Ice Bucket

The ice Bucket is located in the upper portion of the freezer. this assembly stores ice made by the ice maker and dispenses ice cubes.

1.Lift the ice bucket up 2.Slide it out from the unit.

22

Ice Maker

1.Pull the shelf out as far as it goes. 2.Lift it up and pull it out from the unit.

Cover Multi Freezer Assembly

1.Remove ice bucket and the Ice maker.

2.Remove the covers( ) and sensor covers( )

3.Remove the screws(3pcs) that secured the assembly.

4.Disconnect the wire connector( ) and the connecter for Sensor (it can be possible to disconnect this connector after removing the sensor cover)

Auger Motor & case

1.Remove ice bucket.

2.Remove the screws(4) that secured the case 3.Slide it out from the unit. then, you can

disassemble the auger motor from the back of the case.

1

2

Cover Evaporator Assembly

1.Remove the assembly of cover multi freezer

2.Pull the assembly out toward front by holding upper side of the assembly up to see the connector.

3.Disconnect the wire

connector and take the assembly out.

23

Evaporator Fan motor

Evaporator Fan Motor is located in the back side of the cover evaporator assembly.

1.Remove the screws(4pcs) that secured the Fan motor assembly on the 4 corner.

2.Remove the motor case by removing another screw and take out the motor.

Evaporator

Evaporator is located in the bottom of freezer to produce cold air driven across evaporator coils.

1.Remove ice bucket and the Ice maker.

2.Remove the cover multi freezer assembly.

3.Remove the cover evaporator assembly.

4.Disconnect the wire connectors.

5.Desolder the inlet and outlet tubes.

6.Take the steps in opposite to seal the system as mentioned above.

Ambient Thermistor

The thermistor is located at inside the upper hinge cover it sends temperature signal to the micro-processor.

Ambient

Thermistor

Ice Maker Thermistor is located bottom of ice tray. it sends temperature signal to the micro processor.

Thermistor(Ice-Maker)

24

8-2. Refrigerator Disassembly

Beverage Station

The beverage station allows access to the refrigerator with out opening the refrigerator door.

1.Open the door beverage station.

2.With a small flat-blade screwdriver, take out the rubber cap, then put it into the small hole and push the button inside.

3.Take off the door.

Door Gasket

The door gasket is set into groove on door liner

1.Open the door.

2.Grasp the gasket and pull it out from the door liner.

Drawers in Refrigerator

The drawers are located at bottom side of refrigerator.

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

2.Lift it up slightly and pull it out from the unit.

Lights

The light of refrigerator are located inside of cover multi ref. assembly.

1.Remove the lamp cover by releasing the screw. 2.Change the bulb(rated component)

1

2

25

Door Guard in REFRIGERATOR

Lift the guard up and pull it out from door liner

Shelves

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

2.Lift it up and pull it out from the unit.

Water filter

The water filter is located in the upper left hand corner of the refrigerator. this filter filters water for ice maker & 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 up to the lock position is aligned. Do not over tighten.

CoolSelect zoneTM(Optional)

1.Remove all shelves.

2.Remove two screws that secured.

3. Disconnect the wire connector.

4.Remove the screw for disassembling the PBA board for controlling CoolSelect zoneTM

26

5.Disassemble the PBA board.	2. Remove the screw and disconnect the
	wire connector, then pull it out.

Cover Multi REF.

1.Remove the screw and cover lamp. then, remove the sensor cover.

1

2

27

8-3. Machine compartment

Machine Compartment & Electric Box

1)Disconnect the compressor cover by releasing the screws(6EA).

2)Remove the screws which are securing the electric box. and press the tap in electric box coverto take outbyusing a flat-blade screw driver.

(+)driver

(-)driver

PCB-MAIN ASSY

Condenser Fan

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

1)Disconnect the wire connector of Fan.

2)Remove the screws (1 EA) on the drain water

tray.

3)Take out the condenser fan assembly.

Sub-condenser

The sub-condenser is located in the machine compartment.

1)Desolder the compressor discharge & the outlet of sub-condensor.

2)Take out the sub condenser.

Desoldering Point

28

9. Operation Function

9-1) Digital Panel ······································ 30

9-2) Temperature Control Function ···························· 30 9-3) Power Freeze and Power Cool Functions ····················· 31

9-4) Child Lock Function ·································· 31

9-5) Ice Water Dispenser Function ·························· 32 9-6) C-Fan Motor Delay Function of the Machine Compartment ···········32

9-7) CoolSelect ZoneTM Function ····························· 32

9-8) Water Filter Indicator Function···························· 33

9-9) Ice-Maker Function ·································· 33

9-10) Defrost Function ··································· 35

9-11) Forced Operation Function (Pull-down/R-Defrost/R,F-Defrost/Cancellation) · 36

9-12) Sound Function ··································· 37

9-13) Exhibition Function ································· 37

9-14) Self-Diagnostics Function······························ 37

9-15) Load Operation Check Function ·························· 37 9-16) Restoration Function for Power Outage······················ 37

9-17) Set Point Shift Function ······························· 39

9-18) Table of Set Point Shift Function ·························· 40

29

9. Operation Function

9-1) Digital Panel

for Dispense Model

for Cool Select

TM

9-2) Temperature Control Function

When the system power is initally engaged, the default set temperature are -20 for the freezer and 3 for the set refrigerator, respectively. The numbers shown on the digital display panel stand for the actual compartments temperatures. When the compartment temperatures go down, so do the numbers on the display panel, and finally they reach the set temperatures. Once the system is stabilized, the display temperatures are the set temperature.

1) Freezer Temperature Control.

To select a set temperature, press the Freezer Temp. button. The display shows the set temperature from -14 to

-25 in sequence.

2) Refrigerator Temperature Control.

To select a set temperature, press the Fridge Temp. button. The display shown the set temperature from 1 to 7 in sequence.

note) Because of the temperature sensor sensivity, the refrigerator can be under and/or over cooled when the air flow is blocked by stored foods. (Temperature range of the sensor : -9 30 )

In the event of a power failure, if the freezer temperature is maintained lower than 5 , the last selected set temperature and functions memorized in EEPROM will be restored when the power is on.

30