SAMSUNG RS20NCSL, RS20NCSW, RS20NESL, RS20NESW Service Manual

SAMSUNG Home Appliance Service

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SIDE-BY-SIDE REFRIGERATOR

Model:

RS20NCSL

RS20NCSW

RS20NESL

RS20NESW

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.

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Contents

1.SAFETY WARNINGS 4

2.INSTRUCTION 6

3.INSTALLATION 7

4.NOMENCLATURE 8

5.SPECIFICATIONS 9

6.INTERIOR VIEWS AND DIMENSIONS 12

7.FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE 14

8.MECHANICAL DISASSEMBLY16

9.FUNCTIONS AND OPERATION 22

10.CIRCUIT DESCRIPTION 27

11.DIAGNOSIS AND TROUBLESHOOTING 36

12.ILLUSTRATED PARTS CATALOGUE 42

APPENDIX (CIRCUIT DIAGRAM) 57

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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.

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1. SAFETY WARNINGS

CAUTION / WARNING SYMBOLS DISPLAYED SYMBOLS

Indicates that a

Warning danger of death or serious injury

exists.

Indicates that a risk

Caution of personal injury or material damage

exists.

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”.

Caution

	Use the rated components	Pull the power plug out to	On repair, make sure that
	on the replacement.	exchange the interior lamp	the wires such as harness
	●Check the correct model, rated	of the refrigerator.	are bundled tightly.
	voltage, rated current, operating
			●Bundle tightly wires in order not to
	temperature and so on.
		● It may cause electric shock.	be detached by the external force and
			then not to be wetted.

On repair, remove	After repair, check the	Check if there is any trace
completely dust or other	assembled state of	indicating the permeation
things of housing parts,	components.	of water.
harness parts, and check	●It must be in the same assembled	●If there is that kind of trace, change
parts.	state when compared with the state	the related components or do the
	before disassembly.	necessary treatment such as taping
●Cleaning may prevent the possible
		using the insulating tape.
fire by tracking or short.

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2. INSTRUCTION

A newly developed SAMSUNG side by side refrigerator has the following characteristics.

1) Multi-Flow System

Cool air circulates through multiple vents on each shelf level. This provides even distribution of cooling inside of freezer/refrigerator and keeps food fresher for longer.

2) High humidity for fresher food

You can keep food, fruit and vegetables fresh for longer because your refrigerator supplies highly humidified cold air.

3) Door Alarm

When the refrigerator door is left open for more than two minutes, a musical alarm is automatically triggered. This feature helps you save electricity and preserve stored foods.

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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.

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4. NOMENCLATURE

R S 20 N C

SW

Color

SW : Snow White

SL : Stainless Looking

Handle

C ; Sky

E ;

Option

N : Nothing

Capacity ; Cu. ft

Door Type

S - Side By Side

Product ; R -

Label Location

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5. SPECIFICATIONS

5-1. Model Specification

Items

Specification

Model Name

RS20N***

Volume

Total Volume

496 l(17.5 cu.ft)

Freezer Volume

188 l(6.6 cu.ft)

capacity

Refrigerator Volume

308 l(10.9 cu.ft)

Outer dimensions(width x depth x height)

850mm×724mm×1722mm

Rated frequency

Hz

60

60

50

50/60

50

Rated voltage

V

110 115

127

220

220

230

Rated consumption of Comp W

140

125

120

140

125

Rated consumption of Electric heater W

394

Refrigerator type

Frost free

Refrigerant

HFC - 134a

Refrigerant quantity

190gr

Freezing Capacity

Products weight

106kg

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5-2. Electric Parts Specification

Freezing parts

Inner Temperature detection parts

Parts related defrost

Items

Specification

Model Name

RS20N***

Performance of freezer

Type

110V/60Hz

127V/60Hz

220V/50Hz

220V/50,60Hz

230V/50Hz

MK183CL2U/EH1

MK183PL2U/EO1

DK190KT2U/EO1

SK190HL2U/E01

MK183QL2U/EO1

Compressor

Operation type

R.S.C.R

Sealing oils

FREOL α- 15 (ESTER)

Cooler

Freezer

SPLIT FIN TYPE

Condensing method

Force and natural convection method

Drying agent

MOLECULAR SIEVE XH-9

Capillary tube

0.82×3200, 5.5 kg/cm2

Refrigerant

HFC-134a

Types

Freezer temp.

ON( )

OFF( )

Freezer

(F-sensor)

Normal

-19.0

-21.0

Thermistor

Colder

-24.0

-26.0

502AT

Cold

-15.0

-17.0

Refrigerator

Types

Refrigerator temp.

ON( )

OFF( )

Thermistor

Colder

2.0

0.0

(R-sensor)

Normal

4.0

2.0

502AT

Cold

7.0

5.0

Defrostperiod

Period of initial defrost (F defrost)

4 hours ± 10 mins

Pause

7 ± 2 minutes

Defrost period of freezer

6~11 hours(Variable according to the use conditions)defrost

Defrost sensor

sensor

Spec

5.0 at 25

F-defrost

Types

THERMISTOR (PX41C)

Temperature fuse

Rating

AC 250V 10A

Operation temp.

+0

77 - 5

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Items

Specification

F-room defrost heater

Conducting at F defrosting

200W

F room heater sub

Conducting at F defrosting

60W

F room heater glass

Conducting at F defrosting

130W

R-room cover damper

3W

R room electrically driven damper

1W

Condenser for

Running

250VAC,12

250VAC,12

350VAC,5

350VAC,5

350VAC,5

Comp.(monolithic)

Start

-

-

-

-

-

Start relay

Type

J531Q32E4R7M1802

J531Q32E4R7M1802

J531Q34E220M3502

J531Q34E220M3502

J531Q35E330M3852

Action

Initial resistance: 68Ω±20% (Ambient temperature : 25 )

Electricparts

OFF temperature

4TM437RHBYY-53

4TM437RHBYY-53

69 ± 9

4TM317SHBYY-53

4TM265RHBYY-53

Type

4TM317SHBYY-53

Overload relay

ON temperature

130 ± 5

L.V.T(LOW VOLTAGE TRANSFORMER)

110 115V/60Hz

127V/60Hz

220V/50Hz

230 240V/50Hz

F room cooling fan motor

DC 12V DREP3030LA 0.3A

Comp. Cooling fan motor

DC 12V DRCP3030LA 0.24A

Freezer interior light

30W (110

127V)

25W (220

230V)

Refrigerator interior light

30W (110

127V)

25W (220

230V)

Door switch

AC 250V 0.5A

2EA

Supply cord

TO BE FOLLOWED LOCAL STANDARD

Grounding screw

BSBN (Bronze screw)×4EA

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6. INTERIOR VIEWS AND DIMENSIONS

6-1. The Name of Each Part

Freezer		Refrigerator
Interior light		Dairy compartment
Ice tray		Interior light
Shelf		Shelf
Food Guard		Egg tray
Drawer		Fresh container(option)
Leg cover		Food Guard
		Vegetable and fruit drawer

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6-2. Dimensions of Unit

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7. FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE

7-1. Freezing Cycle

Compressor Condenser

Pipe cluster

Pipe hot

Dryer

Capillary tube

Evaporator	Accumulator	Pipe suction	Compressor
			14

7-2. Cooling Air Circulation

Freezer	Refrigerator
	15

8. MECHANICAL DISASSEMBLY

8-1. Accessories for storage and parts for lightening

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

The light of freezer & refrigerator are located at upper side of each compartment.

1)Remove the screws.

2)Remove the lamp cover by unlocking the hook.

SHELVES

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

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

ICE TRAYS

The ice tray is located at bottom of freezer shelfmid.

1) Pull the tray out by sliding.

DRAWERS

The drawers are located at bottom side of freezer and refrigerator.

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

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

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SHELF LOW REF. IN REFIGERATOR

The shelf low ref. in refrigerator can be removed as following sequence.

1)First, remove the drawer upp..

2)Pull the shelf out as far as it goes.

3)Lift it up and pull it out from the unit.

TRAY-REF

The tray-ref is located at bottom of shelf-ref in refrigerator compartment.

1)Pull the tray-ref out as far as it goes.

2)Lift it up slightly and pull it out from the shelf.

FOOD GUARDS

1) Lift the guard up and pull it out from door liner.

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8-2. Cooling Unit

COVER EVAP FRONT IN FREEZER

Before disassemble the cover, Should be removed all accessories in freezer.

1)Pull the screw cap out (4 EA).

2)Remove the screws (6 EA).

3)Grasp the bottom edge of the cover, and pull it out from the unit.

COVER DUCT FRONT IN FREEZER

Before disassemble the cover, should be cover evap. front.

1)Pull the screw cap out (1 EA).

2)Remove the screws (1 EA).

3)Grasp the bottom edge of the cover, and pull it out from the unit.

4)Disconnect the sensor wire connector and pull the cover out from the unt.

COVER DUCT REAR IN FREEZER

Before disassemble the cover, Should be removed cover duct. front.

1)Remove the screws (3 EA).

2)Grasp the bottom edge of the cover, and pull it out from the unit.

3)Disconnect the wire connector and pull the cover out from the unt.

FAN MOTOR

1)Remove the fan propeller (1 EA).

2)Disconnect the wire connector from body of the cover.

3)Remove the screws (3 EA) and separate the fan motor case.

4)Open the case and remove fan motor.

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