LG SKSWK245LS, SKSWK245RS Owner’s Manual

SERVICE MANUAL

CONFIDENTIAL

BUILT IN WINE CELLAR

MODEL : SKSCW181RP

SKSCW241RP

MFL67262420

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CONTENTS

1. SAFETY PRECAUTIONS ............................................................................................................................................................3

2. PRODUCT STANDARDS ............................................................................................................................................................ 4

3. CIRCUIT DIAGRAM .................................................................................................................................................................5-6

4. SPECIFICATIONS ....................................................................................................................................................................7-9

5. MICOM FUNCTION ..............................................................................................................................................................10-11

6. TROUBLE SHOOTING.........................................................................................................................................................12-24

7. TROUBLE SHOOTING WITH ERROR DISPLAY ................................................................................................................25-43

8. HOW TO DISASSEMBLE AND ASSEMBLE

1. Door ........................................................................................................................................................................................44

2. Knock-on ..........................................................................................................................................................................45-46

3. Top Cover .............................................................................................................................................................................. 47

4. Door Switch / SDS PCB / Temperature sensor .................................................................................................................. 48

5. Machine Room Cover ........................................................................................................................................................... 49

6. Machine Room Cycle.......................................................................................................................................................50-53

7. Wi-Fi .......................................................................................................................................................................................54

8. Power Cord ............................................................................................................................................................................ 55

9. Main PCB ..........................................................................................................................................................................56-57

10. Control Panel ......................................................................................................................................................................58

11. Shelf .....................................................................................................................................................................................59

12. Slide Rail .............................................................................................................................................................................60

13. Holder Rail .......................................................................................................................................................................... 61

14. Top Duct ............................................................................................................................................................................... 62

15. Grille Fan .............................................................................................................................................................................63

16. Multi Duct ............................................................................................................................................................................64

17. Defrost Sensor ................................................................................................................................................................... 65

18. Barrier ..................................................................................................................................................................................66

9. SEALED SYSTEM REPAIR METHOD OF REFRIGERATOR WITH R600A REFRIGERANT ...........................................67-73

10. EXPLODED VIEW .............................................................................................................................................................74-81

- 2 -

1. SAFETY PRECAUTIONS

Please read the following instructions before servicing your refrigerator.

1. Unplug the powr before handing any electrical componets.

2. Check the rated current, voltage, and capacity.

3. Take caution not to get water near any electrical components.

4. Use exact replacement parts.

5. Remove any objects from the top prior to tilting the product.

- 3 -

2. PRODUCT STANDARDS

Model Name

Effective inner capacity 274L (9.7 Cu.ft) 385L (13.6 Cu.ft)

Outer dimension (W x D x H)

Rated voltage and frequency 115V / 60Hz 115V / 60Hz

Product weight (kg) 139kg (306lb) 162kg (357lb)

Cooling method Fan Cooling Fan Cooling

Defrost system Natural Defrost system Natural Defrost system

Lay-out

Temperature

control

Model Name

Room 2 (1 Barrier) 3 (2 Barrier)

Shelf 9 (Upper:4EA, Lower:5EA) 8 (Upper:4EA, Mid:2EA, Lower:2EA)

Upper-Room Micom Control Micom Control

Middle-Room - Micom Control

Lower-Room Micom Control Micom Control

Compressor driving method

Evaporator Rollbond Type Rollbond Type

Condenser Micro Channel Condenser (Al) Micro Channel Condenser (Al)

SKSCW181RP SKSCW241RP

"445 × 607× 2121 mm

(17 1/2 x 23 7/8 x 83 1/2 inch)"

Linear Linear

"603 × 607× 2121 mm

(23 3/4 x 23 7/8 x 83 1/2 inch)"

Cycle

"Electrical parts

standard"

Compressor Oil Mineral / Freol Alpha 3G (3cst) (120cc) Mineral / Freol Alpha 3G (3cst) (120cc)

Type of refrigerant R 600a (42g) R 600a (44g)

Capillary tube 0.75 0.75

Dryer (Capillary Tube) Molecular-sieves XH-9 Molecular-sieves XH-9

Valve 3Way Valve 4Way Valve

Heater AC 115V / 33W * 2EA AC 115V / 33W * 3EA

Overload protective device 4MPS41F9-01 4MPS41F9-01

Cold Fan motor DC 12V DC 12V

Fan motor for cooling

condenser

Inside lamp

Main Fuse 125V / 10A 125V / 10A

Valve DC 12V DC 12V

DC 12V DC 12V

15.4W 28.2W

- 4 -

3. CIRCUIT DIAGRAM

24” : W1(Upper)/W2(Middle)/W3(Lower) 18” : W1(Upper)/W2(Lower)

POWER

CORD

ICE MAKER MOTOR

ICE MAKER SENSOR

ICE MAKER MOTOR ON-OFF SWITCH

ICE MAKER MOTOR TEST SWITCH

DISPENSER SWITCH

DEW HEATER

WATER PIPE HEATER

W1 DEFROSTING SENSOR

W2 DEFROSTING SENSOR

W3 DEFROSTING SENSOR

3WAY/4WAY VALVE

W1 SENSOR

W2 SENSOR

W3 SENSOR

W1 LED LIGHT

W2 LED LIGHT

W3 LED LIGHT

FUSE-M

CIRCUIT DIAGRAM

1

BK

3

SB

FUSE

HALL IC

1 2 5 6

3.4

W2

DEFROSTING

HEATER

FUSE-M

W3

DEFROSTING

FUSE-M

HEATER

W1

DEFROSTING

FUSE-M

HEATER

W2 DEFROSTING HEATER

W3 DEFROSTING HEATER

W1 DEFROSTING HEATER

GROUNDING

VCC GND VCC GND VCC GND

COM

A B AB-

5

OVERLOAD

DEVICE

7

9 11 13 15 17 19 21 23 25 27 29 31 33

2

4

6

8 10 12 14 16 18 20 22 24 26 28 30 32 34

1

2

3

4

5

6

7

1

3

5

7

9 11 13 15 17 19 21 23 25 26

2

4

6

8 10 12 14 16 18 20 22 24

WH

BK

CON1/ CON1_1

2 4 6

8 10 12 14 16 18 20 22 21

1

3

5

7

9 11 13 15 17 19

WH

1

WH

3

BO/BL

5

BO/BL

7

BK

9

BK

11

RD

13

RD

15

BO

17

BO

19

BL

21

BL

23

2

4

6

8 10 12

SB

14

GY/RD

16

YL

18

WH/BK

20

PK

22 24

D-N※ D-N : Defrosting Heater- N

1 2 3 4 5 6 7

PK

1 2 3 4

BN

5 6

WH

7 8

BK

9

10

GR/YL

11

PROTECTION

BL/WH BL/WH

RD

GY/WH

BL BO

WH/RD

BN BN

PK

BO/WH

PR

BL

RD

BK

YL GY BO RD PK

RD/YL

BL

YL/BL WH/BN PR/WH

BK BN

WH/RD

WH

BL/RD

PR SB/BK BO/WH BO/BL YL/BK WH/BK BL/WH

5V

H_SENSOR

GND

A A-

STEPPING

B-

MOTOR DAMPER

B

12V GND RX TX 5V

5V

GND

SIG

5V

GND

SIG A A-

STEPPING

B-

MOTOR DAMPER

B

COMPRESSOR

SMART BUZZER

H_SENSOR

DOOR 1 SWITCH

DOOR 2 SWITCH

DOOR 3 SWITCH

DAMPER HEATER

OUTDOOR SENSOR

1

YL

2

BK

3

RD

1

YL

2

BK

3

RD

LINEAR

COMPRESSOR

GROUNDING

W1 FAN

W1 LED PWM LIGHT

HYGIENE FAN MOTOR

MACHINE ROOM FAN

HYGIENE LED LIGHT

W2 FAN

W2 LED PWM LIGHT W3 LED PWM LIGHT

W3 FAN

5V TX RX

GND

KNOCK ON SENSOR 1

KNOCK ON SENSOR 2

OVERLOAD

PROTECTION

DEVICE

MBM6633

5905

9.0 SEC

8.0 SEC

10.0 SEC

11.0 SEC

- 5 -

3. CIRCUIT DIAGRAM

SCHÉMA DE CIRCUIT

MBM66335905

24” : W1(supérieur)/W2(Moyen)/W3(*OG¨SJFVS) 18” : W1(supérieur)/W2(*OG¨SJFVS)

FICHE

SECTEUR

NEUTRE

CIRCUIT INTÉGRÉ EFFET HALL

MOTEUR DE L’APPAREIL À GLAÇONS

CAPTEUR DE L’APPAREIL À GLAÇONS

INTERRUPTEUR MARCHE/ARRÊT MOTEUR DE L’APPAREIL À GLAÇONS

INTERRUPTEUR DE TEST MOTEUR DE L’APPAREIL À GLAÇONS

INTERRUPTEUR DU DISTRIBUTEUR

CHAUFFAGE DE LA ROSÉE

CHAUFFAGE DE LA CONDUITE D’EAU

CAPTEUR W1

CAPTEUR DE DÉGIVRAGE W1

CAPTEUR W2

CAPTEUR DE DÉGIVRAGE W2

CAPTEUR W3

CAPTEUR DE DÉGIVRAGE W3

ÉCLAIRAGE LED W1

ÉCLAIRAGE LED W2

ÉCLAIRAGE LED W3

SOUPAPE 3 VOIES/4 VOIES

※ D-N : CHAUFFAGE DE DÉGIVRAGE- N

CHAUFFAGE DE

FUSIBLE-M

DÉGIVRAGE W2

CHAUFFAGE DE

FUSIBLE-M

DÉGIVRAGE W3

FUSIBLE-M

RÉACTEUR

SOUS

FUSIBLE

TENSION

VCC GND VCC GND VCC GND

FUSIBLE-M

COM

A B AB-

1 2 5 6

3.4

CHAUFFAGE DE DÉGIVRAGE W1

CHAUFFAGE DE DÉGIVRAGE W2

CHAUFFAGE DE DÉGIVRAGE W3

CHAUFFAGE DE DÉGIVRAGE W1

MISE À TERRE

D-N

WH

BK

CON1/ CON1_1

2 4 6

8 10 12 14 16 18 20 22 21

1

3

5

7

9 11 13 15 17 19

1

3

BO/BL

5

BO/BL

7

9 11 13 15 17 19 21 23

2

4

6

8 10 12 14

GY/RD

16 18

WH/BK

20 22 24

1 2 3 4 5 6 7

1 2 3 4 5 6 7 8 9

10

GR/YL

11

1

BK

3

SB

BL/WH BL/WH

RD

GY/WH

BL BO

WH/RD

BN BN PK

BO/WH

PR

BL

RD

BK

YL GY BO RD PK

RD/YL

BL

YL/BL WH/BN PR/WH

BK BN

WH/RD

WH

BL/RD

PR SB/BK BO/WH BO/BL YL/BK WH/BK BL/WH

5V

Capteur d’humidité

GND

A ABB

12V GND RX TX 5V

A ABB

5

7

9 11 13 15 17 19 21 23 25 27 29 31 33

2

4

6

8 10 12 14 16 18 20 22 24 26 28 30

PROTECTION CONTRE LES SURCHARGES

32 34

1

2

3

4

5

6

7

1

3

5

7

9 11 13 15 17 19 21 23 25 26

2

4

6

8 10 12 14 16 18 20 22 24

WH WH

BK

BK RD RD BO BO

BL

SB

YL

PK

BN

WH

BK

DISPOSITIF DE

ALARME INTELLIGENTE

CAPTEUR D’HUMIDITÉ

INTERRUPTEUR PORTE 1

INTERRUPTEUR PORTE 2

INTERRUPTEUR PORTE 3

CHAUFFAGE DU REGISTRE

REGISTRE DU MOTEUR PAS À PAS

AFFICHER

CAPTEUR EXTÉRIEUR

5V

1

YL

GND

2

BK

SIG

3

RD

5V

1

YL

GND

2

BK

SIG

3

RD

REGISTRE DU MOTEUR PAS À PAS

COMPRESSEUR

LINÉAIRE

BASES DU

COMPRESSEUR

VENTILATEUR W1

LAMPE LED PWM W1

MOTEUR VENTILATEUR HYGIÈNE

VENTILATEUR LOCAL TECHNIQUE

LAMPE LED HYGIÈNE

VENTILATEUR W2

LAMPE LED PWM W2 LAMPE LED PWM W3

VENTILATEUR W3

5V TX RX

GND

TAPER SUR LE CAPTEUR 1

TAPER SUR LE CAPTEUR 2

DISPOSITIF DE

PROTECTION CONTRE LES SURCHARGES

9.0 SEC

8.0 SEC

10.0 SEC

11.0 SEC

- 6 -

4. SPECIFICATIONS

FRONT VIEW

SIDE VIEW

TOP VIEWS

● SPECIFICATIONS

ITEMS SPECIFICATIONS

DOOR DESIGN Side Rounded

DIMENSIONS

NET WEIGHT

18W

24W

18W 139kg (306lb)

24W 162kg (357lb)

17 1/2 x 23 7/8 x 83 1/2 (W X D X H)

23 4/3 x 23 7/8 x 83 1/2 (W X D X H)

COOLING SYSTE M Fan Cooling

TEMPERATURE CONTROL Micom Control

DEFROSTING SYSTEM

Natural Defrost System

DOOR FINISH GI

HANDLE TYPE Bar

INNER CASE Aluminum

INSULATION Polyurethane Foam

● DIMENSIONS

(A)

(B)

(C)

(D)

ITEMS SPECIFICATIONS

COMPRESSOR Linear

EVAPORATOR Rollbond Type

CONDENSER Micro channel Condenser (Al)

REFRIGERANT

LUBRICATING OIL

18W R 600a (42g)

24W R 600a (44g)

Mineral / Freol Alpha 3G (3cst)

(120cc)

LAMP LED Module

(A)

(F)

DOOR OPEN 115˚

(G)

min.

(H)

max.

(A)

(G)

min.

(H)

max.

(E)

DOOR OPEN 90˚

Description SKSCW181RP SKSCW241RP

Width Width (A) 17 1/2"(445mm) 23 3/4"(603mm)

Depth with 3/4"(19mm) Door panel (B) 24 3/4"(629mm) 24 3/4"(629mm)

Depth with door (No panel) ( C ) 23 7/8"(607mm) 23 7/8"(607mm)

Depth

Cabinet depth without Door (D) 22"(558mm) 22"(558mm)

Door Open 90º (E) 21 7/8"(556m) 28 1/8"(713mm)

Door Open 115º (F) 20 1/2"(520mm) 26 1/2"(659mm)

Height

Min (G) 83 1/2"(2121mm) 83 1/2"(2121mm)

Max (H) 84 1/2"(2146mm) 84 1/2"(2146mm)

- 7 -

● Parts

MODEL : SKSCW181RP

Control Panel

LED Interior

Lighting

Storage Rack

Zone Divider

LED Interior

Lighting

- 8 -

● Parts

MODEL : SKSCW241RP

Control Panel

LED Interior

Lighting

Zone Divider

LED Interior

Lighting

Storage Rack

Zone Divider

LED Interior

Lighting

- 9 -

5. MICOM FUNCTION

● Operating panel drawing (Applied display is different for each model)

- MODEL : SKSCW181RP

NOTCH

Upper/

Lower

Set

Temper

ature

- MODEL : SKSCW241RP

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9

55˚F 54˚F 53˚F 52˚F 51˚F 50˚F 49˚F 48˚F 47˚F 46˚F 45˚F 44˚F 43˚F 42˚F 41˚F 64˚F 63˚F 62˚F 61˚F 60˚F 59˚F 58˚F 57˚F 56˚F

NOTCH

Upper/ Middle Lower/

Set

Temper

ature

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9

55˚F 54˚F 53˚F 52˚F 51˚F 50˚F 49˚F 48˚F 47˚F 46˚F 45˚F 44˚F 43˚F 42˚F 41˚F 64˚F 63˚F 62˚F 61˚F 60˚F 59˚F 58˚F 57˚F 56˚F

- 10 -

● Description of Function

- MODEL : SKSCW181RP



- Model : SKSCW241RP













Temperature setting



Humidity









Light

Wi-Fi

Power

: The FAN motor for humidity in the refrigerator will be activated or deactivated whenever pressing the button.

: Inner LED turns on/off whenever pressing the button

: The Wi-Fi Icon is blinked when press and hold the button for 3 sec. And then,

- Wi-Fi Connecting : Wi-Fi Icon turns on.

- Wi-Fi Disconnecting : Wi-Fi Icon turns off after 3 min.

: The Power Icon always on. If the power button is pressed and hold for 3 sec., it turns off.



: Indicates the set temperature of the Refrigerator compartment in Celsius or Fahrenheit.

- 11 -



6. TROUBLE SHOOTING

Open the PCBA Cover

1. COMP Bad Operation

Open the PCBA Cover

Check the LED blinking times (Refer to the next chapter for LED blinking and actions.)

If the Comp is normal, the LED does not blink.

- 12 -

2. Simple Check Flow Chart

- Not Cooling (LED Blinking)

LED 8 Blinks

LED 7 Blinks

LED 1 Blinks

LED 4 Blinks

LED 5 Blinks

LED 2 Blinks

LED 3 Blinks LED 3 Blinks

Replace PCB

N

Reset

PCBA

Output

> 60V?

Y

Check C

omp.

Test Mode

1 Input

Test Mode

1 Input

Test Mode

1 Input

Test Mode

1 Input

Test Mode

1 Input

Test Mode

1 Input

Test Mode

1 Input

N

About 5min

Harness

wiring?

Y

Repair Harness

LED 8 Blinks

LED 7 Blinks

LED 1 Blinks

LED 4 Blinks

LED 5 Blinks

LED 2 Blinks

N

Action?

Cycle leakage

Comp.

Y

Cycle

Replace PCBReset

Replace PCB

Comp.

Action?

Y

Check Comp.

Cycle leakage

N

Check

LED6 Blinks

LED Trip Information

1 Current/Voltage Sensing Error 2 Over Stroke 3 Comp Connection Error 4 Over Voltage Error 5 Comp Lock Error

6 Over Current Error

7 IPM Error 8 Communication Error

- Not Cooling (LED No Blinking)

Test Mode

1 Input

Reset

About 5min

Test Mode

1 Input

Replace PCB

N

Y

Check Comp.

Comp.

Action?

About 5min

PCBA

Output

> 60V

N

LED 6 Blinks

N

Comp.

Action?

Y

Check

Cycle leakage

PCBA

Output

> 60V

N

Replace PCB

- 13 -

3. What to do per LED Blinking and Trip protection logic

(1) FCT0 Trip and LED Blinking 1 time (FCT0 Fault)

Blink BlinkOFF OFF

→ Purpose : To detect the compressor voltage and current sensing error.

→ Restart every 30 seconds after compressor off.

LED 1 Blinks

Test Mode

1 Input

About 5minReset

LED 1 Blinks

Replace PCB

- 14 -

3. What to do per LED Blinking and Trip protection logic

(2) Stroke Trip and LED Blinking 2 times (Stroke Trip)

Blink Blink Blink BlinkOFF OFF

→ Purpose : Protection piston crash by abnormally large Stroke.

→ Case 1. Do not operate Comp.

: Harness connection failure between the PCB, Comp, Capacitor.

→ Case 2. Do operate Comp. intermittently

: Condenser Fan or Freezer Fan Error. System Error like water-clogging, capillary-clogging, refrigerant-leakage

→ Logic: After the Comp. Off every 1 minute restart Comp.

Check

the Protection Logic

Check the

leakage and cycle

Recheck

Check Stroke or

LED Blinking 2 times

(Stroke Trip)

Do not operate

Comp.?

N

Y

N

Stroke Trip

occur?

Repair Harness

N

Y

Check

Harness connection

Compressor is operate

intermittently

Reset

Y

Check Comp.

Y

N

- 15 -

Replace

Compressor

3. What to do per LED Blinking and Trip protection logic

Check

Compressor

(3) No Connect Trip and LED Blinking 3 times (No Connection Trip)

Blink Blink Blink BlinkBlinkBlink OFF OFF

→ Purpose : Prevention Over-Voltage and Over-Current by detecting connection error check.

→ Harness connection failure between PCB, Comp, Capacitor.

Comp. insulation breakdown.

→ Logic : After the Comp. Off every 40 seconds restart Comp.

Check

the Protection Logic

Replace PCB

Recheck

No Connect or

LED blinking 3 times

(No Connect Trip)

Do not operate

Comp.?

N

Y

N

No Connect Trip

occur?

Y

Repair Harness

N

Check

Harness connection

Y

Reset

Check Comp.

Y

N

- 16 -

Replace

3. What to do per LED Blinking and Trip protection logic

(4) Over Voltage Trip and LED Blinking 4 times (Over Voltage Trip)

Blink Blink Blink Blink BlinkBlinkBlink Blink OFF OFF

→ Purpose : Protection the PCB by Over Voltage

→ Cause : Applying the Over Voltage to DC Link(450VDC or higher)

→ Logic: Restart every 90 seconds after compressor off.

LED 4 Blinks

Test Mode

1 Input

About 5minReset

LED 4 Blinks

Replace PCB

- 17 -

3. What to do per LED Blinking and Trip protection logic

(5) L/Piston Trip and LED Blinking 5 times (Locked Piston)

Blink Blink BlinkBlink Blink OFF

→ Purpose : Detect locked piston.

→ Cause : Oil shortage of the cylinder, Cylinder or Piston damage, clogging the discharge,

Comp. internal debris.

→ Logic : After the Comp. Off every 2 min 30 seconds restart Comp.

Check

the Protection Logic

Check the L/Piston or

LED blinking 5 times

(Locked Piston Trip)

Do not operate

Comp.?

Reset

Do not operate

Comp.?

N

Replace

Compressor

N

Y

Clogging the Cycle?

Y

Recheck

- 18 -

Repair

Sealed system

3. What to do per LED Blinking and Trip protection logic

(6) Current Trip and LED Blinking 6 times (Current Trip)

Blink Blink Blink BlinkBlinkBlink OFF

→ Purpose : Protection Over-Current(Over-Load)

→ Cause : Abnormally ambient temperature(Over 43°C), Abnormally conditions like

Shield machine room etc. Condenser Fan failure, Comp. failure, PCB failure (IPM breakdown) Oil shortage of the cylinder, Cylinder or Piston damage, clogging the discharge, Comp. internal debris.

→ Logic : After the Comp. Off every 6 minutes restart Comp.

Check

the Protection Logic

Recheck

Check the

leakage and cycle

Check the Current or

LED blinking 6 times

(Current Trip)

Replace PCB

Replace

Compressor

N

Current trip

occur?

Y

N

Do not operate

Comp.?

N

Compressor is operate

intermittently

N

Check the

PCB output

Reset

Y

Clogging the Cycle?

Y

Check the

Compressor failure

Y

Repair

Sealed system

- 19 -

N

Y

Replace

Compressor

3. What to do per LED Blinking and Trip protection logic

(7) IPM Fault Trip and LED Blinking 7 times (IPM Fault)

Blink Blink Blink

→ Purpose : Protection Over-Current by failure IPM(IPM short)

→ Cause : IPM Short and failure

→ Logic : After the Comp. Off every 20 seconds restart Comp.

LED 7 Blinks

BlinkBlink OFF

Blink Blink

Test Mode

1 Input

About 5minReset

LED 7 Blinks

Replace PCB

- 20 -

3. What to do per LED Blinking and Trip protection logic

(8) Comp Tx Error Trip and LED Blinking 8 times (Communication Error)

Blink Blink Blink

→ Purpose : Detection communication error with the Micom of the refrigerator control.

→ Cause : Communication Error

→ Logic : Only LED blinking without the Comp. Off

(Comp. is operate command before communication error)

LED 8 Blinks

BlinkBlink OFF

Blink Blink Blink

Test Mode

1 Input

About 5min

LED 8 Blinks

Replace PCBReset

- 21 -

4. Check the PCB Output

②

→ Check output voltage from PCB to Compressor.

IPM Output check

②

①

Multi

Tester

SAMPLE

→ To judge whether there is any issue with the PCB operation, check the PCB output voltage.

Normal: Voltage 80[V] or higher output at (COMMON,POWER) or (COMMOM,SAVE)

- 22 -

5. Check the Compressor & Harness

(1) Check the Harness connection → Step 1. Power off.

(2) Check the Compressor Step 2. Check the Resistance(point A)

Step 3. Check the Harness(INF ohm).

Step 4. Check the Resistance(point B)

Step 5. Check the Resistance(point D)

Power

off

Check

the Resistance

(point B)

Y

A~B

Connection error

Y

N

Check the

Resistance

(point A)

N

Check

the Resistance

(point D)

Y

B~D

Connection error

Y

N

Replace

Compressor

Check

the Harness

N

Y

Harness Connection

OK

Check

Comp.

terminal

Y

Harness

failure

- 23 -

5. Check the Compressor & Harness

→ Comp Terminal resistance measurement (Power & Common, Save & Common)

→ Check the broken-down insulation : Comp. Save - Earth resistance measurement

Point D

Point A

②

Multi Tester

①

Point B

Sa: Save

Po: Power

Co: Common

The resistance can differ by few depending on

the surrounding temperature or operating condition.

Multi Tester

②

①

Sa

Mode Resistance

Po

Co

Multi Tester

Check insulation break-down

Multi Tester

Earth

②

- 24 -

Power(①) 14 ~17

Save(②) 20 ~23

①

FMA102NAMA

7. TROUBLE SHOOTING WITH ERROR DISPLAY

7-1. Error Code

18 Wine 24 Wine Failure Details

1

2

3

4 Abnormal Wi-Fi E Od E Od

5

6

7

Abnormal Internal Temp. Sensor

Abnormal Defrost Sensor

Abnormal Ambient Sensor

Abnormal Internal Fan

Motor

Abnormal Condenser

Fan Motor

Abnormal Communication

ES1/ES2 ES1/ES2/ES3

Ed1/Ed2 Ed1/Ed2/Ed3 Defrost Sensor Short or Open Circuit

E rt E rt

EF1/EF2 EF1/EF2/EF3

E CF E CF

E CO E CO

Internal Temp. Sensor Short or Open Circuit

Ambient Sensor Short or Open Circuit

Communication Short or Open Circuit

(Display ↔ Wi-Fi Module)

There No Signal Of BLDC Fan Motor More Then 65 Seconds In Operation Of Fan Motor (BLDC Motor Connection, Drive IC Or TR Defect)

Communication Short ior Open

Circuit (Display ↔ Main PCB)

18 Wine

24 Wine

- 25 -