Service Manual RT5000K RT32K50-J RT29K50-J 190314 [PDF]

Zitiervorschau

REFRIGERATOR Basic Model : RT29 / RT32 / RT35(RT39) / RT38(RT42) Model Code : RT38K50**** (Recess Handle) / RT38K51**** (Bar Handle) / RT38K54**** (Display, Bar Handle) / RT38K55**** (Display, Recess Handle) / RT38K58**** (Dispenser, Display, Bar Handle) / RT38K59**** (Dispenser, Display, Recess Handle) RT42K50**** (Recess Handle) / RT42K54**** (Display, Bar Handle) / RT42K55**** (Display, Recess Handle) RT35K50**** (Recess Handle) / RT35K51**** (Bar Handle) / RT35K54**** (Display, Bar Handle) / RT35K55**** (Display, Recess Handle) / RT35K57**** (Dispenser, Recess Handle) / RT35K59**** (Dispenser, Display, Recess Handle) RT39K50**** (Recess Handle) / RT39K54**** (Display, Bar Handle) / RT39K55**** (Display, Recess Handle) RT32K50**** (Recess Handle) / RT32K51**** (Bar Handle) / RT32K54**** (Display, Bar Handle) / RT32K55**** (Display, Recess Handle) / RT32K57**** (Dispenser, Recess Handle) RT29K50**** (Recess Handle) / RT29K51**** (Bar Handle) / RT29K55**** (Display, Recess Handle) / RT29K57**** (Dispenser, Recess Handle) RT32K50*J** (Recess Handle, Mono Cooling) RT29K50*J** (Recess Handle, Mono Cooling)

REFRIGERATOR

CONTENTS 1. PRECAUTIONS 2. PRODUCT SPECIFICATIONS 3. DISASSEMBLY AND REASSEMBLY 4. TROUBLESHOOTING 5. PCB DIAGRAM

RT**K51

RT**K54

RT**K58

6. WIRING DIAGRAM 7. BLOCK DIAGRAM 8. SCHEMATIC DIAGRAM 9. REFERENCE INFORMATION RT**K50

RT**K55

RT**K57

RT**K59

WARNING IMPORTANT SAFETY NOTICE The service guide is for service personal with adequate 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 ⓒ2015 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.

Contents 1. PRECAUTIONS (SAFETY WARNINGS)............................................................... 4 2. PRODUCT SPECIFICATIONS .......................................................................... 7 2-1. 2-2. 2-3. 2-4. 2-5. 2-6.

Introduction of Main Function........................................................................................ 7 Model Specification.................................................................................................... 10 View of your FRIDGE / FREEZER.................................................................................. 11 Electrical Part Specifications & Standard....................................................................... 12 Dimension (MM)........................................................................................................ 17 Display Design.......................................................................................................... 18

3. DISASSEMBLY & REASSEMBLY .................................................................... 19 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-6. 3-7. 3-8.

Precautions............................................................................................................... 19 Disassembling the Freezer.......................................................................................... 20 Disassembling the Refrigerator Door............................................................................ 21 Disassembling the Fridge Door.................................................................................... 22 Disassembling the Refrigerator Door............................................................................ 23 Disassembling the Main PBA and Inverter PBA............................................................... 24 Disassembling the Main PBA and Inverter PBA(RT29/32K50*J)........................................ 25 Disassembling the Refrigerator Compartments............................................................... 27 Disassembling the Freezer Compartments (Auto Ice Maker Type : RT**K5*8).................... 33

4. TROUBLESHOOTING................................................................................... 35 4-1. Check-List before Trouble-Shooting............................................................................ 35 4-1-1. Test Function (Forced Operation / Forced Defrost).............................................. 35 4-1-1-1. How to Enter the TEST MODE.............................................................. 35 4-1-1-2. TEST MODE Description .................................................................... 37 4-1-2. Self-Diagnosis Function................................................................................... 42 4-1-2-1. For Models with Electronic Displays..................................................... 42 4-1-2-2. Models with ROTARY S/W................................................................... 48 4-1-2-2. Models with ROTARY S/W (R Rotary S/W model without F Rotary S/W, RT29/32K50*J).................... 50 4-1-3. Load Status Display Function............................................................................ 53 4-1-4. Operation Status Recovery Function in Case of Blackout...................................... 55 4-1-5. Exhibition Mode Setting Function....................................................................... 55 4-1-6. Option Setting Function.................................................................................... 56 4-1-7. Option Table................................................................................................... 59 4-2. Troubleshooting Flow-Chart by Symptoms.................................................................... 66 4-2-1. When Self-Diagnosis Error occurs..................................................................... 67 4-2-2. When the Freezer Fan does not operate (BLDC Motor)......................................... 72 4-2-3. When the Fridge Fan does not operate............................................................... 73 4-2-4. When Defrost does not work (F DEF Heater)....................................................... 74 4-2-5. When there is no Power in MAIN PCB................................................................. 75 4-2-6. When there is no Power in Intergrated BOARD(RT29/32K50*J).............................. 77 4-2-7. When the Compressor is not working (INVERTER PBA)......................................... 79

Contents 4-2-8. When the Compressor is not working (Intergrated BOARD)................................... 80 4-2-9. When the unit keeps alarming (Buzzer Sound)..................................................... 81 4-2-10. When PANEL PCB operates abnormally............................................................ 83 4-2-11. When the Room Lamp (LED) does not light up.................................................. 84 4-2-12. When Ice Maker does not operate (Model with Ice Maker)................................... 85

5. PCB DIAGRAM............................................................................................ 88 5-1. Part Layout (Main Board)............................................................................................ 88 5-1-1. BETTER.......................................................................................................... 88 5-1-2. BEST/BETTER................................................................................................. 89 5-2. Parts Layout (Inverter Board)....................................................................................... 90 5-2. Parts Layout (Intergrated Board, RT29/32K50*J)............................................................ 91 5-3. Connector Arrangement (Main Board)........................................................................... 92 5-4. Connector Arrangement (Inverter Board)....................................................................... 93 5-5. Connector Arrangement (Intergrated Board, RT29/32K50*J)............................................ 94

6. WIRING DIAGRAM........................................................................................ 95 6-1. WIRING DIAGRAM ..................................................................................................... 95 6-1. WIRING DIAGRAM (RT29/32K50*J)............................................................................... 96

7. BLOCK DIAGRAM........................................................................................ 97 7-1. BLOCK DIAGRAM (PBA Main)...................................................................................... 97 7-2. Block Diagram (PBA Inverter)...................................................................................... 98 7-2. Block Diagram (Intergrated BOARD, RT29/32K50*J)....................................................... 99

8. REFERENCE INFORMATION.........................................................................100 8-1. Nomenclature...........................................................................................................100 8-2. Q & A......................................................................................................................101

1. PRECAUTIONS (SAFETY WARNINGS)

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

4

PRECAUTIONS (SAFETY WARNINGS) Read all instructions before repairing the product and keep to the instructions in order to prevent danger or property damage.

CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS means Prohibition”.

Warning

Caution

Indicates that a danger of death or serious injury exists.

means Do not disassemble”. means No contact”. means The things to be followed”.

Indicates that a risk of personal injury or material damage exists.

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.

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

On repair, make sure that the wires such as harness are bundled tightly. ● Bundle tightly wires in order not to be detached by the external force and then not to be wetted.

comRated pone nts

Unplug

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.

5

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.

PRECAUTIONS (SAFETY WARNINGS) Please ler users know following warnings & cautions in detail.

Warning & Caution Do not allow users to put bottles or kinds of glass in the freezer. ● Freezing of the contents may inflict a wound.

Do not allow users to store narrow and lengthy bottles or foods in a small multipurpose room. ● It may hurt you when refrigerator door is opened and closed resulting in falling stuff down.

Prohibition

Do not allow users to insert the power plugs for many products at the same time.

Do not allow users to disassemble, repair or alter.

Prohibition

Do not allow users to store articles on the product. ● Opening or closing the door may cause things to fall down, with may inflict a wound.

● The products which temperature control should not be stored in the refrigerator.

Prohibition

Prohibition

● May cause abnormal generation of heat or fire.

Do not allow users to store pharmaceutical products, scientific materials, etc., in the refrigerator.

● It may cause fire or abnormal operation which leads to injury.

Do not allow users to bend the power cord with excessive force or do not have the power cord pressed by heavy article. ● May cause fire.

Do not disassemble

Do not allow users to install the refrigerator in the wet place or the place which water splashes. ● Deterioration of insulation of electric parts may cause electric shock or fire.

Make sure of the earth. ● If earthing is not done, it will cause breakdown and electric shock.

Prohibition Earth

6

2. PRODUCT SPECIFICATIONS 2-1. Introduction of Main Function • A newly developed SAMSUNG Top mount freezer has the following characteristics.

QUICK COOLING MODE Pushing "Power Cool" button on the display, fridge starts cooling inside powerfully and helps reach to the target temperature in a short time. This convenient mode can reduce waiting time for cooling when needed.

EASY ACCESS DISPENSER Locating the dispenser at the waist level, the access to water gets easier without the need to bend over your waist.

RECESSED HANDLE & SIDE RECESSED HANDLE With it's ergonomic design of the front and side recessed handle, the door can be opened easily.

BAR HANDLE & SIDE RECESSED HANDLE With comfortable grip of bar handle, the door can be opened more easily. And the front of the side recess handle sticks out more than the back, enabling to open the door easily with elbow while both hands are full of groceries.

AUTO ICE MAKER -A  ll the process of ice making is done automatically only by filling the water tank. - 5L big capacity ice maker gets ice cubes always ready.

7

PRODUCT SPECIFICATIONS

COOL PACK Even in case of power shut-off, cool pack keeps cooling for 8 hours, which keeps foods from defrosting or ending up in the rubbish bin.

MULTI STORAGE BASKET -M  ulti Storage Basket was designed to store various items such as cosmetics, medinines, and sauces separately from others. - It also can be detached and moved conveniently to a desired place.

BIG GUARD A wider and deeper Big Guard can store big and tall bottles easily, enabling to enjoy a big bottle of beverage for a long period of time or to store more and various beverages. Available : 290L, 320L, 350L, 380L

8

PRODUCT SPECIFICATIONS

ANTI BACTERIA PROTECTOR The inside fan creates air movement passing through a sterilizing / deodorizing filter and ensures more effective and powerful sterilization and deodorization.

Deodorizing Filter Has a natural fiber filter and deodorizing filter to eliminate food smell and bacteria that changes the original smell of groceries.

SILVER+ DEODORIZER Deodorizing Filter Has a natural fiber filter and deodorizing filter to eliminate food smell and bacteria that changes the original smell of groceries.

SMART FREEZER Depending on the season or occation, the use of freezer and fridge space is different. With Samsung's new smart freezer, when you need more fidge space, you can easily convent your freezer into fridge. When you are away on vacation or when freezer is empty, you can also simply turn it off.

9

PRODUCT SPECIFICATIONS 2-2. Model Specification

Item

Specification

Model

Net Capacity

Net Dimension

RT38

RT35

RT32

RT29

Total

382

361

318

295

Refrigerator

293

272

246

223

Freezer

89

89

72

72

W(mm)

675

675

600

600

D(mm)

667

667

670.5

670.5

H(mm)

1785

1715

1715

1635

220V~240V / 50Hz 220V~240V / 60Hz 110V~127V / 60Hz

Rated Voltage and Frequency Motor Rated Consumption Power

F-FAN

Max 1.92W

R-Fan

Max 1.92W

10

PRODUCT SPECIFICATIONS 2-3. View of your FRIDGE / FREEZER

Tray Type : RT**K5*0 Twist Type : RT**K5*1 ,RT**K5*2, RT**K5*3, RT**K5*4, RT**K5*5, RT**K5*6 Auto Ice Maker Type : RT**K5*8

Freezer Guard Cool-Pack(Option) Ice Maker (Option)

Fresh Room(Option)

Guard-Egg Multi Storage Basket(Option)

Slide Shelf Deodorizer(Option) Water Tank(Option) Movable VEG Box(Option)

Guard-Bottle

Vegetable Drawer

Cool Pack (Option) or Shelf Fre or Shelf-Half (Option)

Tray (Option) or Twist or Auto Ice Maker (Option)

11

PRODUCT SPECIFICATIONS 2-4. Electrical Part Specifications & Standard

Items

Specification

Models (Option)

RT38K5**0 "RT35K5**0 RT32K5**0 RT29K5**0 RT38K5**7 RT35K5**7 RT32K5**7 RT29K5**7 RT38K5**2 RT35K5**2" RT32K5**2 RT29K5**2

Refrigerant

R600a, 52g

R600a, 50g

Components for Freezer

Model

A+ : MSV488AL1R(Al)

Starting type

BLDC

Oil Charge

Mineral 10cSt, 200cc

Freezer

Split Fin Type

Fridge

Steel Wire Type

Condenser

R600a, 52g

No Condenser, Side Cluster 7row(each side)

No Condenser, Side Cluster 7row(each side), Rear Cluster

Molecular Sieve 9gr

Dryer

F : OD2.05 x ID0.75 x L4000 Capillary tube

Electric Components

R : OD : 1.9 x ID:0.85 x L3000 DefrostHeater

Conductingat F Defrost

R600a, 50g

4Star

Freezing Capacity

Compressor

R600a, 54g

RT32K* / RT29K* : 230 V, 130 W, 406.9 ohm 120 V, 130 W, 110.8 ohm RT38K* / RT35K* : 230 V, 160 W, 330.6 ohm 120 V, 130 W, 90 ohm

Thermal-Fuse for preventingoverheating of Refrigerator Defrost-Heater

110℃(109℃) OFF

Bimetal for

40℃ ON, 60℃ OFF

preventingoverheating of Refrigerator Defrost-Heater

12

PRODUCT SPECIFICATIONS

Items

Specification

RT38K5**4 RT38K5**5

Models (Option) Refrigerant

RT35K5**4 RT35K5**5

R600a, 54g

RT32K5**4 RT32K5**5

RT29K5**4 RT29K5**5

R600a, 52g

R600a, 50g

Components for Freezer

Compressor

A++: MSV488AL1P (Cu)

R600a, 54g

3Star:NC4MV88ALP(Cu) BLDC

Starting type Oil Charge

RT39K5**8

4Star

Freezing Capacity Model

RT42K5**8

Mineral 10cSt, 200cc

Mineral 5cSt, 200cc

Freezer

Split Fin Type

Fridge

Steel Wire Type

Condenser

No Condenser, Side Cluster 7row(each side), Rear Cluster

Dryer

Molecular Sieve 9gr F : OD2.05 x ID0.75 x L4000

Capillary tube

Electric Components

R : OD : 1.9 x ID:0.85 x L3000 DefrostHeater

Conductingat F Defrost

RT32K* / RT29K* : 230 V, 130 W, 406.9 ohm 120 V, 130 W, 110.8 ohm RT38K* / RT35K* : 230 V, 160 W, 330.6 ohm 120 V, 130 W, 90 ohm

Thermal-Fuse for preventingoverheating of Refrigerator Defrost-Heater

110℃(109℃) OFF

Bimetal for

40℃ ON, 60℃ OFF

preventingoverheating of Refrigerator Defrost-Heater

13

PRODUCT SPECIFICATIONS

Items

Specification

RT32K50*J

Components for Freezer

Models (Option)

RT29K50*J

Refrigerant

R600a, 53g

Freezing Capacity

4Star

Compressor

Model

A+ : NC4AV80ALR (Al)

Starting type

BLDC

Oil Charge

Mineral 10cSt, 200cc

Freezer

Split Fin Type

Fridge

-

Condenser

No Condenser, Side Cluster 5row (each side)

Dryer

Molecular Sieve 9gr F : OD1.8 x ID0.75 x L3000

Capillary tube

Electric Components

DefrostHeater

Conductingat F Defrost

RT32K* / RT29K* : 230 V, 130 W, 406.9 ohm120 V, 130 W, 110.8 ohm

Thermal-Fuse for preventingoverheating of Refrigerator Defrost-Heater

110℃(109℃) OFF

Bimetal for

40℃ ON, 60℃ OFF

preventingoverheating of Refrigerator Defrost-Heater

14

PRODUCT SPECIFICATIONS

Items

Specification

RT38(42)

Models (Option)

Motor

Lamp

RT35(39)

RT29

F-Fan BLDC

U92C12MS1B3, 3305 ±7%, DC12V, 0.16A, Max 1.92W

R-Fan BLDC

U92C12MS1B3, 3305 ±7%, DC12V, 0.16A, Max 1.92W

Deodorizer

G6015S12B, 2400RPM±7%, 12V, 0.07A, 1W, 4POLE, CW, 60*60*15

LED Type

FR4, 65*10, 1.6T, 3PKG

Europe

UCP-2

United Electric Components

RT32

BF-3(BSI)

Kingdom AUSTRAILIA

AP-3

SINGAPORE

BF-3(PSB)

MALAYSIA

BF-3

IRAN

UCP-2

Power Cord

Pump Motor

DC12V, 400mA(Optional)

Switch for water

AC 250VAC 16A(Optional)

MOTOR-ANTI VIRUS PROTECTOR (Only for TSE manufacture model option)

DC12V, 70mA(Optional)

Water valve

DC12V,300mA(Optional)

15

PRODUCT SPECIFICATIONS

Item

Specification

MODEL

RT38(42) / RT35(39) / RT32 / RT29

Freezer

Thermistor (Freezer Sensor) 502AT

Refrigerator

MODEL

Defrost Cycle

Defrost Related Components

Room Temperature Sensor Components

MODEL

Temperature Selection

ON(℃)

OFF(℃)

-23℃

-22.5

-23.5

-19℃

-18.5

-19.5

-15℃

-14.5

-15.5

Temperature Selection

ON(℃)

OFF(℃)

1℃

2.5

-0.5

2℃

3.5

0.5

7℃

8.5

5.5

THERMI STOR (Fridge sensor) 502AT

FIrst Defrost Cycle (Concurrent defrost of F and R)

5hr ±10min

Defrost Cycle(FRE)

12~77hr(Vary according to the conditions used)

Pause time

5 ± 1min

F/R Defrost Sensor

ThermalFuse

Model

THERMISTOR SENSOR ASS'Y

SPEC

5.39 Kℓ at 23℃

Rated

250V, 10A

Operating temperature

109~110℃

16

PRODUCT SPECIFICATIONS 2-5. Dimension (MM)

MODEL

A

B

C

D

E

F

G

H

I

J

K

L

M

N

RT38, RT42

1785

1728.5

56.5

17

1736

32

726.5

667

579

675

1274

1162

1078

751

RT35, RT39

1715

1658.5

56.5

17

1666

32

726.5

667

579

675

1274

1162

1078

751

RT38, RT42 (Glass Door)

1785

1726

59

17

1736

32

-

667

579

690

1289

1220

983

706

RT35 (Glass Door)

1715

1656

59

17

1666

32

-

667

579

690

1289

1220

983

706

RT32

1715

1660

55

17

1663

35

730.5

670.5

603

600

1223

1099

969

661

RT29

1635

1580

55

17

1583

35

730.5

670.5

603

600

1223

1099

969

661

17

PRODUCT SPECIFICATIONS 2-6. Display Design

RT**K5*8

RT**K5*0/RT**K5*1/RT**K5*2/RT**K5*3/ RT**K5*4/RT**K5*5/RT**K5*6

① Freezer If you press the Freezer button, the Freezer temperature will be set to be between -15℃ and -23℃. The default set temperature is -19℃, and if you press the button, the temperature will change and the set temperature will be displayed. ② Power Freeze 1) If you press the Power Freeze button for three seconds, the Power Freeze icon will be turned ON. 2) This function will last for a few hours, and after that, the temperature will return to the previous temperature. 3) This function may be automatically OFF. First, it is turned OFF automatically when the Power Freeze function is completed. Second, if you press the Power Freeze button again, it will be turned OFF automatically, and the temperature will return to the previous set temperature. ③ Ice On/Off If you press the Ice On/Off button, you can change the status of the Ice Maker. If you press the button while the Ice On/Off button is not selected, the Ice Off icon will be turned ON, and the Ice Maker will not work. ④ Freezer Convert The Freezer Convert function can change the mode of the Freezer. The default setting is the Freezer, and if you press the Freezer Convert button for three seconds in this status, the Fridge icon will light up and the Fridge will be turned ON. After you have pressed the Hold button for three seconds, you can change the mode with a single button. However, the status will be changed immediately after the Hold button is pressed for three seconds only when it is set to be the Freezer, which is the basic default setting. ⑤ POWER COOL 1.When you press the Power Cool button, the Indicator( ) will light up and the refrigerator will speed up the time. 2. This function will be activated for several hours and then return to the previous temperature. 3. This function switches off automatically. When the Power Cool process is completed, the Power Cool indicator switches off and the freezer switches back to the previous temperature setting. To deactivate this function, press the Power Cool button. ⑥ Fridge Press the Fridge button to set the fridge to desired temperature from the range 1~2 °C to between 1 °C and 7 °C. Default set temperature is set on 2 °C and each time you press the Fridge button, temperature will changing following order and temperature indicator will display the desired temperature. You can also select the Vacation mode with the Fridge button. 1℃

Vacation

7℃

18

5℃

3℃

2℃

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

- NEED TOOL IMAGE

ITEM

USE

Phillips Head Driver

Use for assembling and disassembling of screw

Flat Head Driver

Use for assembling and Disassembling of Home Bar, Dispenser, Deli Cartessen Box, Main PBA etc...

Hex Wrench Ø2mm

Use for assembling and disassembling of Handle

Socket Wrench Ø10mm

Use for assembling anddisassembling of Door Hinge

19

DISASSEMBLY & REASSEMBLY 3-2. Disassembling the Freezer

PART NAME

How to do

Descriptive Picture

1. R  emove the Cap-Hinge Upp, and then unscrew the 1 screw of Cover-Hinge.

2. Disconnect the connector of wires.

Removing the Freezer Door

3. R  emove hinge screws by turning to counterclockwise, and then take off the Hinge-Upp. Take care when removing the door to ensure that it does not fall on you. (If It don't have Display, not exist Coverhinge) 4. R  emove the door from the middle hinge by carefully lifting the door. [Caution] Be careful not to scratch.

CAUTION

When disassembling, make sure the unit turned off If you want to assembly, follow the reverse order

20

DISASSEMBLY & REASSEMBLY 3-3. Disassembling the Refrigerator Door

PART NAME

DESCRIPTION

FIGURE

1. Remove screw and take off the cover

2. Disconnect the wire conector, remove the blue cap, and disconnect the hose. (Sequence : Grab hose, push the gray ring on the fitting and then pull out the hose.)

CAUTION

When assembling the Water Line and the Fitting Tube, the Water Hose needs to be pushed all the way to the center of the transparent Fitting Tube to prevent water leak.

Water Line (Hose)

Removing the Refrigerator Door Center of transparent coupler (Fitting)

3. O  pen the Refrigerator. Remove hinge screws by turning to counterclockwise, and then take off the Hinge-Mid.

4. R  emove the door from the low hinge by carefully lifting the door.

CAUTION

Take care when removing the door to ensure that it does not fall on you.

CAUTION

When disassembling, make sure the unit turned off If you want to assembly, follow the reverse order

21

DISASSEMBLY & REASSEMBLY 3-4. Disassembling the Fridge Door

PART NAME

DESCRIPTION

FIGURE

1. Insert a flat-head screwdriver on the bottom as shown. 2. Push up smoothly and unlock the switch.

Removing the Switch Door

3. Disconnect the wire connector.

22

DISASSEMBLY & REASSEMBLY 3-5. Disassembling the Refrigerator Door

PART NAME

Disassembly of Dispenser

DESCRIPTION

FIGURE

1. Insert a flat head driver on the each corner of the case dispenser and pull out it. Be careful not to make scratch. CAUTION

1. Remove the screw

Disassembly of water valve

2. Disconnect the housing

3. Push the gray ring on the valve and pull out the valve Do not grap the hose CAUTION

Control Panel

1. Remove inlay film as shown. 2. Insert a flat-head screwdriver on the slot as shown,and unlock the tabs. 3. Disconnect the wire connector. CAUTION

When disassembling, make sure the unit turned off.

1. Insert a flat-head screw driver on the slot by twisting the handle and disassemble the cover-handle.

Door Handle

2. Remove 4 screws.

CAUTION

When disassembling, make sure the unit turned off If you want to assembly, follow the reverse order.

23

DISASSEMBLY & REASSEMBLY 3-6. Disassembling the Main PBA and Inverter PBA

PART NAME

DESCRIPTION

FIGURE

1. Remove the 2 screws of the PBA cover.

2. D  isengage all housing connectors connected with Inverter PBA and Main PBA.

Main PBA and Inverter PBA

3. R  emove the Inverter PBA and Main PBA by pulling the hook out. (Refer to the picture) Disconnect the Sensor and the Housing.

24

DISASSEMBLY & REASSEMBLY 3-6. Disassembling the Main PBA and Inverter PBA(RT29/32K50*J)

PART NAME

DESCRIPTION

FIGURE

1. Remove the 2 screws of the PBA cover.

Intergrated Board

2. Disengage all housing connectors connected with Inverter PBA and Main PBA.

3. R  emove the Inverter PBA and Main PBA by pulling the hook out. (Refer to the picture.) Disconnect the Sensor and the Housing.

25

DISASSEMBLY & REASSEMBLY

PART NAME

DESCRIPTION

FIGURE

1. Turn off the refrigerator. 2. Remove all the storage inside.

2. Lay the front of the refrigerator to face the bottom.

Tray Drain Water

3. Holding Chassis-comp and remove 4 screw with phillips head driver.

4. Remove the 1 screw.

5. Holding Chassis-comp and remove 1 screw with phillips head driver. 6. Remove Tray-drain-water.

26

DISASSEMBLY & REASSEMBLY 3-7. Disassembling the Refrigerator Compartments

PART NAME

Glass Shelf

DESCRIPTION

FIGURE

These shelves allow the storage of larger items and pull out for easy access. 1. Lift it up and pull the shelf out to the front.

Drawer

Drawers are designed for storage of fruits, vegetables, and deli items. The drawers are located in the lower portion of the refrigerator. 1. P  ull out the drawer as far as it goes. 2. Tilt the drawer up and pull it out until it is removed.

Guard

1. T  ake out the guard by lifting it up from door.

1. Take out the water tank by pulling it

CAUTION

When disassembling, make sure the unit turned off If you want to assembly, follow the reverse order

2. Disassembly 2 screws. Water tank

3. Hose and Fitting the bottom of the fridge door is separated.

4. Disconnect the wire connector and Pull out the Hose.

27

DISASSEMBLY & REASSEMBLY

PART NAME

DESCRIPTION

FIGURE

1. Take out the Fresh drawer by pulling it 2. Take out the Cover by Pulling it one side

Fresh room CAUTION

When disassembling, make sure the unit turned off If you want to assembly, follow the reverse order.

1. Lift up and pull the Anti-Bacteria out to the front. Anti Bacteria CAUTION

Deodorizer

When disassembling, make sure the unit turned off if you want to assembly fellow the reverse order.

1. Pull the Cover-Deodorizer out forward.

28

DISASSEMBLY & REASSEMBLY

PART NAME

How to do

Descriptive Picture

1. T  urn the ASSY Accessory-Twin Cooling counterclockwise and remove it. 2. Remove the two marked screws.

CAUTION

When disassembling, make sure the unit turned off if you want to assembly fellowthe reverse order.

Cover Multi 3. P  ull the bottom part with hands and remove it. 4. Disassemble the Housing on the top right.

Plate Drain

Cover Multi (RT29/32K50*J)

1. Remove the two marked screws. 2. Pull down the Plate Drain and remove it.

1. Remove the Cap-Screws. 2. Remove 1 screws with philips head driver.

29

DISASSEMBLY & REASSEMBLY

PART NAME

How to do

Descriptive Picture

1. Remove the sensor from the Evap.

2. Remove the five marked screws. 3. Unfasten and remove the Cover Evap by lifting it.

Sensor (Fan included) 4. P  ull the bottom part of the fan and remove it.

5. Remove the sensor.

30

DISASSEMBLY & REASSEMBLY

PART NAME

How to do

Descriptive Picture

1. Remove the cap screws. 2. Remove the two screws.

CAUTION

When disassembling, make sure the unit turned off if you want to assembly fellow the reverse order.

Evaporator Cover in Freezer 3. P  ull the lower part of the Cover Evap and remove it. 4. Disassemble the Housing on the top left. 1. Remove the cap screws. 2. Remove the two screws.

CAUTION

When disassembling, make sure the unit turned off if you want to assembly fellow the reverse order.

3. P  ull out the ribs of air hole with long nose plier as a picture.

Evaporator Cover in Freezer (RT29/32K50*J)

4. P  ull out put your finger on the air hole (Pull it forward and press it down at the same time)

5. D  isconnect the wire harness at the topleft corner.

31

DISASSEMBLY & REASSEMBLY

PART NAME

How to do

Descriptive Picture

1. Remove the sensor from the Evap.

2. Remove the five marked screws. 3. Lift the Styrofoam and remove it.

Sensor (Fan included) 4. Remove the Styrofoam. 5. Remove the sensor.

6. Pull the Fan and remove it.

32

DISASSEMBLY & REASSEMBLY 3-8. Disassembling the Freezer Compartments (Auto Ice Maker Type : RT**K5*8)

PART NAME

DESCRIPTION

FIGURE

1. Take out the tray cube by pulling it.

2. Take out the Cover-Ice maker by pulling it.

3. Take out the Cool-Pack by pulling it.

Auto Ice Maker Type (RT**K5*8)

4. Remove 2 screws with Phillips head driver.

5. Take out the Cover-Air Fre by pulling it.

6. Take out the Support Ice maker by pulling it.

33

DISASSEMBLY & REASSEMBLY 3-9. Disassembling the Freezer Compartments (Auto Ice Maker Type : RT**K5*8)

PART NAME

DESCRIPTION

FIGURE

7. Disconnect the wire harness.

8. Disconnect the wire harness.

Auto Ice Maker Type 9. Remove 2 screws with Phillips head driver on the top of cabinet. (RT**K5*8)

10. Remove 2 screws with Phillips head driver

11. Take out the Guide Pipe by pulling it.

34

4. TROUBLESHOOTING 4-1. Check-List before Trouble-Shooting

4-1-1. Test Function (Forced Operation / Forced Defrost) 4-1-1-1. How to Enter the TEST MODE 4-1-1-1-1. For Models with Electronic Displays 1. If the Freezer button and the Fridge button on the Panel PCB are pressed simultaneously for six seconds or longer, the Panel Display will turn ON/OFF all displays for about four seconds with an interval of 0.5 seconds. Here, if you take your finger off the Freezer button and the Fridge button and press the Fridge button, the product will enter the Test Mode. 2. During the Test Mode, if you press any button from among the buttons on the Panel, it will work as a test button. 3. If you press the Test button, it will change in the following order: Forced Operation 1, Forced Operation 2 (A-Valve/Fan OFF), Forced Operation 3 (F-Valve/Fan OFF), Forced R Defrosting, Forced F/R Defrosting, Cancellation (normal operation), and Forced Operation 1. 4. If you want to cancel the Test mode in the middle, please turn OFF the power and turn it ON again.

1) Test Mode Entering Process

②

①

RT**K5*8

②

①

RT**K5*0/RT**K5*1/RT**K5*2/RT**K5*3/ RT**K5*4/RT**K5*5/RT**K5*6

① Press the Freezer button and the Fridge button simultaneously for six seconds. ② When the Display starts blinking, press the Freezer button once.

35

TROUBLESHOOTING 4-1-1-1-2. Models with ROTARY S/W (Fridge Room) 1. If repeating 3 times switch of 'Coldest' Choices as Rotary Switch and "Dead Zone" over a second choice, a Test key will be recognized as a one circuit. However, the choice of "Coldest" and "Dead zone" exceed 5 seconds. 3 time Count is initialized. 2. If you press the Test button in the normal operation status, the test function will change in the following order: Forced Operation 1, Forced Operation 2 (R-Valve/Fan OFF), Forced Operation 3 (F-Valve/Fan OFF), Forced R Defrosting, Forced F/R Defrosting, Cancellation (normal operation), and Forced Operation 1. 3. If you press the Test button once in the normal mode, the product will enter the Forced Operation 1 function. 3-1) Here, the Buzzer will perform alarm with a beep sound. 3-2) W  hen forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 3-3) When forced operation is selected, the Comp. and the F-Fan continues to operate for 24 hours, and the R Compartment will work by the set temperature. 3-4) During forced operation, the alarm will sound until the forced operation will be ended, and you can cancel forced operation by repressing the Test button. 4. If you press the Test button again in the Forced Operation 1 status, the product will enter the Forced Operation 2 mode. 4-1) Here, the Buzzer will perform alarm with a beep sound. 4-2) When forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 4-3) When forced operation is selected, the Comp. and the F-Fan will continuously work for 24 hours, the R-Valve will be closed, and the R-Fan will be OFF. 4-4) During the forced operation, the alarm will sound until the forced operation will be ended, and if you repress the Test button, the Forced Operation 2 mode will be canceled. 5. If you press the Test button again in the Forced Operation 2 status, the product will enter the Forced Operation 3 mode. 5-1) Here, the Buzzer will perform alarm with a beep sound. 5-2) When forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 5-3) When forced operation is selected, the Comp. and the R-Fan will continuously work for 24 hours, the F-Valve will be closed, and the F-Fan will be OFF. 5-7) During forced operation, the alarm will sound until the forced operation will be ended, and you can cancel the Forced Operation 3 by repressing the Test button in the Forced Operation 3 status. 6. In the Forced Operation 3 status, if you press the Test button again, the Forced Operation 3 will be immediately canceled, and the product will enter the Forced R Defrosting mode. 6-1) Here, a beep alarm sound will be made for three seconds from when you enter the mode, and continue to be made by being ON for 0.1 seconds and being OFF for 0.9 seconds in the Forced R Defrosting mode. 7. If you press the Test button again in the Forced R Defrosting status, the Forced R Defrosting will be immediately canceled, and the product will enter the Forced FR Defrosting mode. 7-1) Here, a beep alarm sound will be made for three seconds from when you enter the mode, and continue to be made by being ON for 0.5 seconds and being OFF for 0.5 seconds in the Forced FR Defrosting mode. [Reference] Dead zone : If do not set a specific Notch, set between Notch, It is recognized as not the middle value but abnormal range. This is called Dead zone. ※REFERENCE : TEST OPERATION BLOCK DIAGRAM (TEST MODE) NORMAL OPERATION

Forced Operation 1

Forced Operation 2

Forced Operation 3 TEST KEY INPUT

36

Forced R Defrosting

Forced F/R Defrosting

TROUBLESHOOTING

4-1-1-2. TEST MODE Description 4-1-1-2-1. Forced Operation 1 mode

1-1) If you press any button once in the Test Mode, the product will enter the Forced Operation 1 mode. When the product enters the Forced Operation 1 mode, the Panel Display will display the LEDs from Weak, Weak Middle, Middle, and Middle Strong to Strong of the F/R Compartments. Here, the Buzzer will perform alarm with a beep sound. 1-2) When forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 1-3) When forced operation is selected, the Comp. and the F-Fan continues to operate for 24 hours, and the R Compartment will work by the set temperature. 1-4) When forced operation is selected, the set temperature will be automatically selected to be -23℃ for the Freezer and 1℃ for the Fridge. 1-5) During forced operation, the Power Freeze and Power Cool functions will not work. (All the buttons function normally) If the function is selected, the Power mode icon will be automatically turned OFF in about 10 seconds. 1-6) If you select the forced defrosting or the test cancellation when one minute has not passed after you have selected forced operation, the set temperature will be changed into the previous set temperature. 1-7) During forced operation, the alarm sound will not stop until the forced operation is finished. [Note] Models with the Rotary Switch operate the same as the above with the Forced Operation Mode on.

37

TROUBLESHOOTING

4-1-1-2-2. Forced Operation 2

2-1) If you press any button twice in the Test mode, the product will enter the Forced Operation 2 mode. When the product enters the Forced Operation 2 mode, the Panel Display will display the LEDs from Weak and Weak Middle to Middle of the F/R Compartments. Here, the Buzzer will perform alarm with a beep sound. 2-2) When forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 2-3) When forced operation is selected, the Comp. and the F-Fan will continuously work for 24 hours, the R-Valve will be closed, and the R-Fan will be OFF. 2-4) When forced operation is selected, the set temperature will be automatically selected to be -23℃ for the Freezer and 1℃ for the Fridge. 2-5) During forced operation, the Power Freeze and Power Cool functions will not work. (All the buttons function normally) If the function is selected, the Power mode icon will be automatically turned OFF in about 10 seconds. 2-6) If you select the forced defrosting or the test cancellation when one minute has not passed after you have selected forced operation, the set temperature will be changed into the previous set temperature. 2-7) During forced operation, the alarm sound will not stop until the forced operation is finished. [Note] Models with the Rotary Switch operate the same as the above with the Forced Operation Mode on.

38

TROUBLESHOOTING

4-1-1-2-3. Forced Operation 3 mode

3-1) If you press any button three times in the Test mode, the product will enter the Forced Operation 3 mode. When the product enters the Forced Operation 3 mode, the Panel Display will display the LEDs of Weak and Weak Middle of the F/R Compartments. Here, the Buzzer will perform alarm with a beep sound. 3-2) When forced operation is selected, the Comp. will immediately work without the 15-minute delay in any operation mode. Here, if the product is defrosting, the defrosting will be immediately stopped, and forced operation will be performed. (If forced operation is performed immediately when the Comp. is OFF, overload may occur, so be careful.) 3-3) When forced operation is selected, the Comp. and the R-Fan will continuously work for 24 hours, the F-Valve will be closed, and the F-Fan will be OFF. 3-4) When forced operation is selected, the set temperature will be automatically selected to be -23℃ for the Freezer and 1℃ for the Fridge. 3-5) During forced operation, the Power Freeze and Power Cool functions will not work. (All the buttons function normally) If the function is selected, the Power mode icon will be automatically turned OFF in about 10 seconds. 3-6) If you select the forced defrosting or the test cancellation when one minute has not passed after you have selected forced operation, the set temperature will be changed into the previous set temperature. 3-7) During forced operation, the alarm sound will not stop until the forced operation is finished. [Note] Models with the Rotary Switch operate the same as the above with the Forced Operation Mode on.

39

TROUBLESHOOTING 4-1-1-2-4. Forced R Defrosting mode

4-1) In the Forced Operation 3 status of Test Mode, if you press any button once more, the Forced Operation 3 will be immediately canceled, and the product will enter the Forced R Defrosting mode. When the product enters the Forced R Defrosting mode, the Panel Display will display the LEDs of Weak Middle and Middle of the F/R Compartments. 4-2) Here, a beep alarm sound will be made for three seconds from when you enter the mode, and continue to be made by being ON for 0.1 seconds and being OFF for 0.9 seconds in the Forced R Defrosting mode. [Note] Models with the Rotary Switch operate the same as the above with the Forced Operation Mode on.

4-1-1-2-5. Forced FR Defrosting mode

5-1) In the Forced R Defrosting status of Test Mode, if you press any button once more, the Forced R Defrosting will be immediately canceled, and the product will enter the Forced FR Defrosting mode. When the product enters the Forced FR Defrosting mode, the Panel Display will display the LED of Middle of the F/R Compartments. 5-2) H  ere, a beep alarm sound will be made for three seconds from when you enter the mode, and continue to be made by being ON for 0.5 seconds and being OFF for 0.5 seconds in the Forced FR Defrosting mode. [Note] Models with the Rotary Switch operate the same as the above with the Forced Operation Mode on.

40

TROUBLESHOOTING 4-1-1-2-6. Models with ROTARY S/W (R Rotary S/W model without F Rotary S/W, RT29/32K50*J)

6-1. If repeating 3 times switch of 'Coldest' Choices as Rotary Switch and "Dead Zone" over a second choice, a Test key will be recognized as a one circuit. However, the choice of "Coldest" and "Dead zone” exceed 5 seconds.3 time Count is initialized. 6-2. Start typing TEST KEY and forced maneuver → forced F defrost → force F (Normal operation) → TEST feature is changed as the sequence to forced operation. 6-3. In a Normal mode, Test Key reoganized as the 1 time the force is selected. 6-4. If forced operation is selected, even in action, COMP will work immediately without 7-minute delay. 6-5. If forced operation is selected, defrost immediately is interrupt. 6-6. If forced operation is selected, COMP. and F-FAN continuously operate for 24 hours. 6-7. The froced operation continues to operate until completed or different MODE is switched or released (force defrost F). 6-8. Once forced operation is complete (24 hours). F defrost is proceeded regradess of the previous state. 6-9. After the defrost operation depending on the completion of the forced operation by judging and operating CASE which performs defrost function, it is proceeded a the normal defrost conditions. 6-10. In the middle of forced operation, if it is released randomly (in case of changes to release MODE), COMP ON time of forced operation is intialized and can be working as forced operation.Re-accumulated since the release and the defrost cycle is reflected.

[Reference] Dead zone : If do not set a specific Notch, set between Notch, It is recognized as not the middle value but abnormal range. This is called Dead zone.

※ Reference : Test Operation Block Diagram (Test Mode)

41

TROUBLESHOOTING

4-1-2. Self-Diagnosis Function 4-1-2-1. For Models with Electronic Displays 1) Self-Diagnosis mode (when it's turned on initially) 1-1) When the power is initially applied to the Refrigerator, the Micom determines whether the Temperature Sensor is out of order or not within a few seconds. 1-2) If a defective sensor is discovered as a result of the self-diagnosis, all the pertinent display LEDs will flicker with the interval of 0.5 seconds. Here, no beep sound will be made. (Refer to the Check List for Self-Diagnosis) 1-3) When a defective sensor is discovered and the error found by self-diagnosis is displayed, only the self-diagnosis button will be recognized and normal display will not work. However, the temperature will be controlled by emergency operation. 1-4) To cancel the error code, fix the failure of the defective sensor or cancel the Initial SelfDiagnosis Function by pressing the Freezer KEY and the Fridge KEY buttons for 13 seconds. 2) Self-Diagnosis in Normal Operation 2-1) If you press the Freezer + Fridge button simultaneously for 13 seconds or longer in the normal operation mode, a buzzer sound ("Ding-dong") will be made, and the Self-Diagnosis mode will be selected. 2-2) When the product enters the Self-Diagnosis mode, all LEDS will be OFF, and if there is an error, the error display will last for 60 seconds, and after that, the product will return to the normal status. (A buzzer sound "Ding-Dong" will be made.) (Refer to the Check List below for Self-Diagnosis) 2-3) Input by button is not accepted when the Self-Diagnosis mode is on.

HOLD 13 SEC

HOLD 13 SEC

42

TROUBLESHOOTING

①E  RROR DISPLAY (Refer to Self-Diagnosis Check List below)

※ Self-Diagnosis Check List NO

Item

Display

Description

1

F-DEF

"-23℃" LED Lamp

When defrosting is ended by time

2

EXT-SENSOR

"-21℃" LED Lamp

Open/Short error

3

F-SENSOR

"-19℃" LED Lamp

Open/Short error

4

R-SENSOR

"-17℃" LED Lamp

Open/Short error

5

F-DEF SENSOR

"-15℃" LED Lamp

Open/Short error

43

Image-1

Image-2

TROUBLESHOOTING

NO

Item

Display

6

F-FAN ERROR

"1℃" LED Lamp

7

ICE Maker Error

ICE Off(

Description

F-FAN constraint error

) LED

Ice Making Sensor Error Ice Maker Function Error Ice Maker Water Supply Pipe Heater Error Comp start failure error Comp IPM Fault Error Comp location detection error

8

Comp Error

"3℃" LED Lamp Comp motor constraint error Comp low voltage error Comp over voltage error

9

R-DEF SENSOR

10

R-FAN ERROR

Vacation(

Power Freeze ( LED

) LED

)

Open/Short error

R-FAN constraint error

44

Image-1

Image-2

TROUBLESHOOTING

Self-Diagnosis Error Description NO Error Code

1

2

Item

Description

Trouble Shooting

F-SENSOR

The voltage between MAIN PCB CN30-"3(GRN) ↔ 1(WHT)" should be within 4.5V~0.5V.

R-SENSOR

The voltage between MAIN PCB CN30-"5(BLU) ↔ 1(WHT)" should be within 4.5V~0.5V.

Separation of sensor housing part, contact error, disconnection, short circuit. The failure by temperature is displayed when the temperature sensed by the sensor is +65℃ or higher or -50℃ or lower.

The voltage between MAIN PCB CN30-"4(YEL) ↔ 1(WHT)" should be within 4.5V~0.5V.

3

F - DEF SENSOR

4

R - DEF SENSOR

The voltage between MAIN PCB CN30-"6(RED) ↔ 1(WHT)" should be within 4.5V~0.5V.

5

EXT SENSOR

The voltage between MAIN PCB CN30-"2(WHT) ↔ 1(WHT)" should be within 4.5V~0.5V.

6

F-FAN ERROR

The voltage between MAIN PCB CN75-"4(YEL) ↔ 1(GRY)" should be within 7V~12V.

7

R-FAN ERROR

When the related Fan Motor operates, it occurs if the contact of the Feed Back Signal Wire is defective, the Motor Wire is slipped out or the Motor The voltage between MAIN is defective. PCB CN75-"3(ORG) ↔ 1(GRY)" should be within 7V~12V.

45

Image-1

Image-2

TROUBLESHOOTING

NO Error Code

Item

Description

Trouble Shooting

8

F-DEF ERROR

It occurs when the failure is about the separation of the Housing related to the F Compartment Defrosting Heater, contact error, disconnection, short circuit, or the failure of Temperature Fuse. The failure is displayed when defrosting of the F Compartment does not end even after nonstop heating for 150 minutes or longer.

The voltage between MAIN PCB CN30-"4(YEL) ↔ 1(WHT)" should be within 4.5V~0.5V.

9

WATER PIPE HEATER ERROR

10

11

Separation of sensor housing part, contact error, disconnection, short circuit. The failure by temperature is displayed when the temperature sensed by the sensor is +65℃ or higher ICE MAKER or -50℃ or lower. SENSOR **Applies only to the models with Ice Maker. ERROR

ICE MAKER SENSOR ERROR ICE MAKER ICE MAKER FUNCTION Function ERROR ERROR **Applies only to the models with Ice Maker

The voltage between MAIN PCB CN30-"3(GRN) ↔ 1(WHT)" should be within 4.5V~0.5V.

The voltage between MAIN PCB CN30-"3(GRN) ↔ 1(WHT)" should be within 4.5V~0.5V.

After replacing the Ice Maker, plug in the unit and check its operation.

46

Image-1

Image-2

TROUBLESHOOTING

NO Error Code 12

Item

Description

COMP

The error code is displayed when the compressor has failed to start.

Run failure ERROR COMP IPM

13

FAULT ERROR Comp Abnormal

14

Current Detection Error

Trouble Shooting

Check the soldering status of the inverter PCB. (Check if any parts have short-circuited). Check if the DC 16V output The error code is displayed is less than 1 3.5V. when the compressor IPM Check the Comp and fault error has occurred. Cycle. Check the compressor wire connections. Check the soldering status The error code is displayed of the inverter PCB. when the compressor (Check if any parts have location detection failed. short-circuited). Check the Comp and Cycle.

15

Check if the compressor and the Cycle is normal. Comp motor The error code is displayed Check the input voltage. constraint when the compressor Check the soldering of the motor is constrained. inverter PCB. error (Check if any parts have short-circuited.)

16

COMP Low The error code is displayed Check the input voltage. (This error occurs when Voltage when the AC Input Voltage the input voltage is AC is too low. ERROR 106 V or lower.)

17

COMP Over The error code is displayed Check the input voltage. (This error occurs when Voltage when the AC Input Voltage the input voltage is AC is too high. ERROR 310V or higher.)

47

Image-1

Image-2

TROUBLESHOOTING 4-1-2-2. Models with ROTARY S/W 1. W  hen the unit is plugged in, it will diagnose all its components to check if there are any defect parts. And when there is any defect part, the ERROR MODE DISPLAY LED LAMP will blink according to the LED Blinking Frequency in the below table. And, at the end of each blinking cycle, there is a two-second interval (Downtime). 2. When the unit is plugged in, it will also diagnose if there are any multiple parts or loads failures. If so, the ERROR MODE DISPLAY LED LAMP will blink according to the LED Blinking Frequency in the below table. And, at the end of each blinking cycle, there is a two-second interval (Downtime).

(552502'(',63/ $