Samsung AQV09FAN, AQV09FAX, AQV12FAN, AQV12FAX Service Manual

SPLIT-TYPE AIR CONDITIONER

INDOOR UNIT OUTDOOR UNIT

Basic : AQV09FAN
Model

: AQV09FAN AQV09FAX
AQV12FAN AQV12FAX
Model Code : AQV09FAN AQV09FAX

AQV12FAN AQV12FAX
AQV09FAN/XSA AQV09FAX/XSA
AQV12FAN/XSA AQV12FAX/XSA

AIR CONDITIONER THE FEATURE OF PRODUCT

■ High Energy Efficiency BLDC

Air Conditioner

■ Simple Flat Grille Design

■ Good Morning Mode

■ : Good Morning Mode can help you sleep quickly

AQV09FAN, AQV12FAN

AQV09FAN/XSA, AQV12FAN/XSA

AQV09FAX, AQV12FAX

AQV09FAX/XSA, AQV12FAX/XSA

and soundly and wake up refreshed.

■ Multi Functional Cleaning System

■ : Silver Nano Health System and Deodorizing/

Catechin Filter are adopted.

■ Silence Mode

■ : When you use the "Silence Mode", you can

experience extremely quiet operation of your
air conditioner.

For more information, Please access to our service web site(http://itself.sec.samsung.co.kr)

Contents

Operating Instructions and Installation

11. Precautions

1-1 Installing the air conditioner
1-2 Power supply and circuit breaker
1-3 During operation
1-4 Disposing of the unit
1-5 Others

12. Product Specifications

2-1 The Feature of Product
2-2 Product Specifications

2-3 The Comparative Specifications of Product

2-4 Accessory and Option Specifications

13. Alignment and Adjustments

3-1 Test Mode
3-2 Indoor Display Error and Check Method

3-3 Outdoor LED Error Display and Check Method

3-4 Setting Option Setup Method

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3-2

3-3

3-4

14. Disassembly and Reassembly

4-1 Indoor Unit
4-2 Outdoor Unit

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15. Exploded Views and Parts List

5-1 Indoor Unit
5-2 Outdoor Unit
5-3 Ass’y Control In
5-4 Ass’y Control Out

16. Electrical Parts List

17. Wiring Diagram

7-1 Indoor Unit
7-2 Outdoor Unit

18. Schematic Diagram

8-1 Indoor Unit
8-2 Outdoor Unit

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5-1

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5-3

5-5

5-7

6-1

7-1

7-1

7-2

8-1

8-1

8-2

Samsung Electronics 1

Operating Instructions and Installation

2 Samsung Electronics

Contents

19. Circuit Descriptions

9-1 PCB Circuit Descriptions

9-2 Refrigerating Cycle Diagram

10. PCB Diagram

10-1 Indoor PCB

. ...... .... ... .... ... .... ...... ...... .... ... .... ... .... ...... ...... .... ... .... ...... ...... .... ... .... ... .... ...... ...... .... ... .... ... .

10-2 Outdoor PCB

11. Operating Instructions

11-1 Name of Each Part

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11-2 Wireless Remote Control-Buttons and Display

11-3 Main Function

12. Troubleshooting

12-1 Items to be checked first

12-2 Fault Diagnosis by Symptom

12-3 PCB Inspection Method

12-4 Main Part Inspection Method

13. Block Diagram

13-1 Indoor Unit
13-2 Outdoor Unit

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9-1

9-1

9-3

10-1

10-1

10-2

11-1

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11-3

11-4

12-1

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12-2

12-20

12-22

13-1

13-1

13-3

14. Reference Sheet

14-1 Index for Model Name

14-2 Low Refrigerant Pressure Distribution

14-3 Pressure & Capacity mark

14-4 Q & A for Non-trouble

14-5 Cleaning/Filter Change

14-6 Installation

14-7 Installation Diagram of Indoor Unit and Outdoor Unit

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14-1

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14-2

14-3

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14-7

14-9

14-10

Samsung Electronics 2-1

2. Product Specifications

2-1 The Feature of Product

■ High Energy Efficiency BLDC Air Conditioner

BLDC Technique arises the efficiency of air conditioner and makes a room cool and warm with high energy saving.

■ Simple Flat Grille Design

With a Smart and fashionable style, the high impressive interior design allow this product to set place in anywhere.

■ Good Morning Mode

Good Morning Mode can help you sleep quickly and soundly and wake up refreshed.

■ Multi functional cleaning system

With Silver Nano Health System and Deodorizing/Catechin Filters makes your room more refreshed.

■ Silence Mode

When you use the “Silence Mode”, you can experience extremely quiet operation of your air conditioner.

2-2 Samsung Electronics

2-2 Product Specifications

Model
Item

Type Wall-mounted Wall-mounted

Capacity

Running Frequency

Dehumidifying ℓ/h 1.3 1.6

Performance

Power

Size

Heat Exchanger 2 Row 10 Step 1 Row 20 Step 2 Row 14 Step 1 Row 20 Step

Refrigerant Control Unit Check Valve, Capillary Check Valve, Capillary

Freezer Oil Capacity cc 320 320

Refrigerant to Change (R410A) g 750 850

Protection Device (OLP) None None

Cooling Test Condition Indoor Unit : DB27°C WB 19°C Outdoor Unit : DB35°C WB 24°C

Heating Test Condition Indoor Unit : DB20°C WB 15°C Outdoor Unit : DB7°C WB 6°C

Operation Conditon Range

Air Volume

Noise

Energy Efficiency Ratio

Power ph-V-Hz 1-220/240-50 1-220/240-50

Power Consumtion

Operating Current

Power Factor

Power Cord

Outer Dimension W x H x D mm 825 x 285 x 189 720 x 548 x 265 825 x 285 x 189 720 x 548 x 265

Weight (Net) kg 7.8 31.5 8.4 31.5

Refrigerant Pipe

Drain Hose D x L(mm) Φ18 x 550 Φ18 x 550

Compressor

Oil Type FREOLα68ES-T FREOLα68ES-T

Blower

Cooling

Heating 1.20 / 3.30 / 4.50 1.40 / 4.00 / 5.00

Cooling

Heating 25 / 64 / 90 30 / 76 / 102

Cooling

Heating 7.8/6.6/4.6 29 9.2/7.5/6.0 29

Cooling

Heating 43/25 53 43/25 53

Cooling

Heating 3.63 3.61

Cooling

Heating 300 / 910 / 1,400 330 / 1,108 / 1,550

Cooling

Heating 1.7 / 4.4 /6.6 1.9 / 5.2 / 7.1

Cooling

Heating 75 / 90 / 95 75 / 90 / 95

Length m 2 2

Number of Core Wire 3 3

Capacity A 10 10

Liquid mm x L(m) Φ6.35 x 5 Φ6.35 x 5

Gas mm x L(m) Φ9.52 x 5 Φ9.52 x 5

Type Rotary, G4C090LUBER Rotary, G4C090LUBER

Type Hermetic Hermetic

Motor

Rated Output 853W 853W

Type Cross-flow Propeller Cross-flow Propeller

Type Resin / Steel Resin / Steel Resin / Steel Resin / Steel

Motor

Rated Output W 27 50 27 50

Cooling

Heating

kW

(Low / Std / Max)

Hz

(Low / Std / Max)

㎥/min

(H/M/L)

dB

(H/L)

W/W
(Std)

W

(Low / Std / Max)

A

(Low / Std / Max)

%

(Low / Std / Max)

Indoor 16°C ~ 32°C 16°C ~ 32°C

Outdoor 10°C ~ 43°C 10°C ~ 43°C

Indoor -10°C ~ 30°C -10°C ~ 30°C

Outdoor -10°C ~ 24°C -10°C ~ 24°C

AQV09FAN AQV09FAX AQV12FAN AQV12FAX

Indoor Unit Outdoor Unit Indoor Unit Outdoor Unit

0.99 / 2.50 / 3.30 0.99 / 3.30 / 4.00

20 / 51 / 73 25 / 67 / 89

7.2/5.8/4.0 30 8.5/6.9/5.2 30

43/25 53 43/25 53

3.40 3.21

270 / 735 / 1,100 330 / 1,028 / 1,500

1.6 / 3.5 / 5.1 1.9 / 4.9 / 6.8

75 / 90 / 95 75 / 90 / 95

Samsung Electronics 2-3

2-3 The Comparative Specifications of Product

Design

Item

Development Model Comparative Model

AQV09FAN SH09BWHA

Indoor Unit

Outdoor Unit

Net Weight

Outer Dimension

(WidthxHeightxDepth)

Noise

Air Purifying System Filter

Indoor Display Three Color LED Display Three Color LED Display

Indoor Unit 7.8kg 8.4kg

Outdoor Unit 31.5kg 33.2kg

Indoor Unit 825 x 285 x 189mm 825 x 285 x 189mm

Outdoor Unit 720 x 548 x 265mm 720 x 548 x 265mm

Indoor Unit

Outdoor Unit

43dB↓ 40dB↓

53dB↓ 52dB↓

Silver Nano Evaporator

Catechin Filter

Deodorizing Filter

Silver Nano Evaporator

Catechin Filter

Deodorizing Filter

2-4 Samsung Electronics

The Comparative Specifications of Product(cont.)

Design

Item

Development Model Comparative Model

AQV12FAN SH12BWHA

Indoor Unit

Outdoor Unit

Net Weight

Outer Dimension

(WidthxHeightxDepth)

Noise

Air Purifying System Filter

Indoor Display Three Color LED Display Three Color LED Display

Indoor Unit 8.4kg 8.4kg

Outdoor Unit 31.5kg 33.2kg

Indoor Unit 825 x 285 x 189mm 825 x 285 x 189mm

Outdoor Unit 720 x 548 x 265mm 720 x 548 x 265mm

Indoor Unit

Outdoor Unit

43dB↓ 41dB↓

53dB↓ 52dB↓

Silver Nano Evaporator

Catechin Filter

Deodorizing Filter

Silver Nano Evaporator

Catechin Filter

Deodorizing Filter

Samsung Electronics 2-5

2-4 Accessory and Option Specifications

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2-4-1 Accessories

Item Descriptions Code-No. Q'TY Remark

Ass'y Plate Hanger DB97-02851B 1

Remote Control DB93-03170S 1

Batteries for Remote Control DB47-90024A 2

User’s Manual DB98-26678A 1

Indoor

Unit

Installation Manual DB98-26679A 1

DB93-01549F

(Europe)

3-wire Power Cable

DB93-02431A

(Australia)

4-wire Assembly Cable

DB39-01092B

(Only Australia)

Drain Plug DB67-20011A 1

Rubber Leg DB73-00182A 4

1

1

Outdoor

Unit

Assembly Pipe, ø6.35mm DB96-10453B 1

Accessory

Box

Assembly Pipe, ø9.52mm DB96-10453F 1

Operating Instructions and Installation

2-6 Samsung Electronics

Product Specifications

Accessories(cont.)

Item Descriptions Code-No. Q'TY Remark

PE T3 Foam Tube Insulation DB72-50165A 1

Vinyl Tape, Width 50mm DB72-00459A 1

Drain Plug DB67-20011A 1

Rubber Leg DB73-00182A 4

Pipe Clamps A DB39-20224A 3

Pipe Clamps B DB39-20224B 3

Cement Nail - 6

M4x16 Tapping Screws 6002-000215 10

Drain Hose, length 2m DB62-00487A 1

Accessory

Box

Putty 100g DB98-10568A 1

Samsung Electronics

5. Exploded Views and Parts List

1

6

1-2

1-9

1-1

2-2

5-2

3-7

1-3

1-4

1-6

9

4

7

2-1

2

5-1

5-4

5

3

8

1-7

1-8

5-3

3-4

3-6

3-8

1-5

3-1

3-2

3-5

3-3

5-1 Indoor Unit

5-1

Samsung Electronics

■ Parts List

Exploded Views and Parts List

No. SA/SNADescription Specification

Code No.

AQV09FAN AQV12FAN

1 DB94-00454B ASS’Y BACK BODY ASS’Y - 1 SA

DB94-00454D ASS’Y BACK BODY ASS’Y 1 - SA

1-1 DB61-01632A BACK BODY HIPS 1 1 SNA

1-2 DB69-00834A CUSHION BACK BODY EPS 1 1 SNA

1-3 DB96-03149A ASS’Y SUPPORT EVAP RH HIPS - 1 SA

DB96-03149B ASS’Y SUPPORT EVAP RH HIPS 1 - SA

1-4 DB31-00219A MOTOR IN 220-240V~,50/60Hz,Class E 1 1 SA

1-5 DB94-00456A ASS’Y CROSS FAN OD92xL635 1 1 SA

1-6 DB97-02075A ASS’Y BOLT SPECIAL ASS’Y 1 1 SNA

1-7 DB94-00455A ASS’Y RUBBER BEARING ASS’Y 1 1 SNA

1-8 DB94-40007A ASS’Y BEARING MOTOR BEARING 1 1 SA

1-9 DB69-00833A CUSHION EVAP UP EPS 1 - SA

2 DB96-06862A ASS’Y EVAP TOTAL ASS’Y 1 - SA

DB96-06716A ASS’Y EVAP TOTAL ASS’Y - 1 SA

2-1 DB63-00850A COVER BEARING ABS 1 - SNA

2-2 DB96-03171F ASS’Y EVAP ASS’Y 1 - SNA

DB96-06563A ASS’Y EVAP ASS’Y - 1 SNA

3 DB94-00457H ASS’Y TRAY DRAIN ASS’Y 1 1 SA

3-1 DB63-00848A TRAY DRAIN ABS 1 1 SNA

3-2 DB61-01635A BLADE-H HIPS 1 1 SA

3-3 DB61-01636A BLADE-V PP 1 1 SA

3-4 DB63-00849A TRAY STABILIZER ABS 1 1 SNA

3-5 DB69-00839A CUSHION EPS TRAY RH EPS 3 3 SA

3-6 DB73-00180A RUBBER CAP DRAIN GUM-EPM 3 3 SNA

3-7 DB95-20138A ASS’Y MOTOR STEPPING 220-240V~,50/60Hz,Class E 1 1 SA

3-8 DB94-00458B ASS’Y DRAIN HOSE ASS’Y 1 1 SA

4 DB93-04259A ASS’Y CONTROL IN ASS’Y 1 1 SA

5 DB92-00853D ASS’Y PANEL FRONT ASS’Y 1 1 SA

5-1 DB64-00989A PANEL FRONT HIPS 1 1 SA

5-2 DB92-00848D ASS’Y GRILLE AIR INLET ASS’Y 1 1 SA

5-3 DB97-02064A ASS’Y COVER DISPLAY ASS’Y 1 1 SA

5-4 DB63-01951A GUARD AIR FILTER PP 1 1 SNA

6 DB97-02851B ASS’Y PLATE HANGER ASS’Y 1 - SNA

7 DB61-01638A HOLDER PIPE PS 1 1 SNA

8 DB63-00844A COVER TERMINAL ABS 1 1 SA

9 DB93-03170S ASS’Y REMOCON ARH-463 1 1 SA

Q'TY

5-2

Samsung Electronics

5-2 Outdoor Unit

23

22

12

20

20-1

26

9

8

20-2

21

10

11

17-3

17-4

17-5

17-1

19

4

7

16

15

1

5

2

6

17-2

17

18

25

21-1

21-2

14

3

13

24

5-3

Samsung Electronics

■ Parts List

Exploded Views and Parts List

No. SA/SNADescription Specification

Code No.

AQV09FAX AQV12FAX

1 DB90-01581F ASS’Y CABI FRONT ASS’Y,SC-94445T 1 1 SA

2 DB63-00847A GUARD FAN HIPS,SC-90073R 1 1 SA

3 DB90-01330L ASS’Y BASE OUT ASS’Y,SC-94445T 1 1 SA

4 DB99-00401A ASS’Y BRACKET VALVE ASS’Y,SC-94445T 1 1 SA

5 DB67-00397A FAN-PROPELLER AS+G/F20%,ø400 1 1 SA

6 DB60-30020A NUT-HEXAGON M6 1 1 SA

7 DB31-00220B MOTOR FAN OUT AC Motor 1 1 SA

8 DB61-01644A BRACKET MOTOR SGCC-M 1 1 SA

9 DB97-02225A ASS’Y SUPPORT PLATE B/M SGCC-M 1 1 SA

10 DB94-01180A ASS’Y PARTITION ASS’Y,SGCC-M 1 1 SA

11 DB27-00041A REACTOR PPS,5mH,10A 1 1 SA

12 DB96-06562A ASS’Y COND UNIT ASS’Y 1 - SA

DB96-06562B ASS’Y COND UNIT ASS’Y - 1 SA

13 DB63-00853A COVER CONTROL PP,SC-90073R 1 1 SA

14 DB90-01546G ASS’Y CABINET SIDE RH ASS’Y,SC-94445T 1 1 SA

15 DB64-01687A CABINET SIDE LF A SECC-P,SC-94445T 1 1 SA

16 DB64-01688A CABINET SIDE LF B SECC-P,SC-94445T 1 1 SA

17 G4C090LUBER COMPRESSOR ROTARY,BLDC 1 1 SNA

17-1 DB63-00763A GROMMET ISOLATOR NR 3 3 SNA

17-2 DB60-30028A SCREW HEX M8 3 3 SNA

17-3 DB60-30018A SCREW MACHINE M5 1 1 SNA

17-4 DB63-00489A COVER TERMINAL PBT(G/F 15%) 1 1 SNA

17-5 DB63-00817A GASKET EPDM 1 1 SNA

18 DB63-01647A FELT COMP SIDE FELT+PVC Sheet 1 1 SA

19 DB63-01044A FELT COMP BASE FELT+PVC Sheet 1 1 SA

20 DB99-00848A ASS’Y VALVE 4WAY ASS’Y 1 1 SA

20-1 DB62-02286A 4WAY VALVE R410A,SANHUA 1 1 SNA

20-2 DB62-02284A VALVE SERVICE R410A,SANHUA,3/8” 1 1 SNA

21 DB99-00849A ASS’Y VALVE CHECK ASS’Y 1 - SA

DB99-00850A ASS’Y VALVE CHECK ASS’Y - 1 SA

21-1 DB62-02324B CHECK VALVE R410A,SANHUA 1 1 SNA

21-2 DB62-02283A VALVE SERVICE R410A,SANHUA,1/4” 1 1 SNA

22 DB93-04265A ASS’Y CONTROL OUT ASS’Y - 1 SA

DB93-04265B ASS’Y CONTROL OUT ASS’Y 1 - SA

23 DB61-02891C GUIDE SCREEN P.E.H 100% 1 1 SA

24 DB32-00176E THERMISTOR OUT/DIS ASS’Y 1 1 SA

25 DB32-00121B THERMISTOR COND ASS’Y 1 1 SA

26 DB93-04489A CONNECT WIRE COMP ASS’Y 1 1 SA

Q'TY

5-4

5-3 Ass'y Control In : DB93-04259A

■ Parts List

Code No.No. SA/SNADescription Specification

1 DB61-01637A CASE CONTROL-IN SS-P/J,ABS,-,-,-,BLK,SSEC 1 SA

2 DB93-04258A ASS’Y PCB MAIN-IN FORCE,ASS’Y PCB MAIN 1 SA

3 DB65-00181B TERMINAL BLOCK-ASS’Y AQV12FA,12K_In 1 SNA

4 DB93-03117A ASS’Y PCB SUB ASK(P)13WHWE,WW1,TSE,GRN/GRN/RED 1 SA

5 DB61-01639A PLATE-CONTROL IN -,SGCC-M,T1.0,-,160,-,SSEC,SS-PJT 1 SNA

6 DB61-01097A HOLDER-WIRE CLAMP -,ABS,-,-,-,BLK,V21-PJ 1 SA

7 6001-000929 SCREW-MACHINE PH,+,-,M3,L22,ZPC(WHT),SWRCH18A,UP,- 1 SNA

8 6001-001054 SCREW-MACHINE TH,+,-,M4,L10,ZPC(WHT),SM20C,-,- 3 SNA

9 DB93-04685A SCREW-SPECIAL TH, M4xL8 - SNA

10 DB93-04685A ASS’Y CONNECTOR WIRE FORTE1-PJT,UL1007 26AWG 1 SNA

11 DB93-04487A ASS’Y CONNECTOR WIRE FORTE-PJT,UL1007 28AWG 1 SNA

12 DB32-00020A THERMISTOR-WIRE ASS’Y 103AT,-,-,-20~+100,-,-,-,-,- 1 SNA

13 DB63-00851A COVER-DRAIN SS-PJT,ABS,-,-,-,-,-,NO,SSEC 1 SNA

14 DB73-00242B RUBBER-BAND

15 DB39-00514B CONNECTOR WIRE EARTH YEL/GRN - SNA

16 DB39-00148A PLATE EARTH WIRE YEL/GRN - SNA

17 DB93-01549F ASS’Y-POWER CORD MID,E,CB 1 SA

18 6001-000725 SCREW-MACHINE TH,+,-,M4,L16,ZPC(WHT),SWRCH18A,UP,- 3 SNA

WW2-P/J,SILICON RUBBER,-,-,-,BLACK,-,-,SSEC,L120xW15xT0.3

Q'TY

1 SNA

5-5

Samsung Electronics

MEMO

Samsung Electronics 5-6

Samsung Electronics

5-4 Ass'y Control Out

■ AQV09FAX : DB93-04265B

■ AQV12FAX : DB93-04265A

5-7

Samsung Electronics

■ Parts List

Exploded Views and Parts List

No. SA/SNADescription Specification

Code No.

AQV09FAX AQV12FAX

1 DB61-02249A CASE CONTROL-COVER ABS V0,BLK 1 1 SA

2 DB62-04566A SEAL-COVER CONTROL FOAM-LEX,WHT 1 1 SNA

3 6002-000536 SCREW-TAPPING M4xL8 3 3 SNA

4 DB91-00306A ASS’Y-SCREW MACHINE M3x16 5 5 SNA

5 DB93-04263A ASS’Y PCB MAIN-OUT FORTE,12K - 1 SA

DB93-04263B ASS’Y PCB MAIN-OUT FORTE,9K 1 - SA

6 DB62-03155A HEAT SINK AL 1 1 SA

7 6002-000560 SCREW-TAPPING M4,L10 1 1 SNA

8 DB93-04264A ASS’Y PCB SUB FORTE,EMI 1 1 SA

9 DB61-02250A CASE CONTROL-BASE ABS V0,BLK 1 1 SA

10 DB70-00547A PLATE-CASE CONTROL SGCC-M,-,T0.6 1 1 SNA

11 DB62-02332P SEAL-CASE CONTROL FOAM-PU(30),BLACK 1 1 SNA

12 2301-001377 C-FILM,LEAD-OTHER 1200nF,450V 1 1 SA

13 DB91-00309A ASS’Y-SCREW TAPPING M3xL20 1 1 SNA

14 DB65-00181B TERMINAL BLOCK-ASS’Y DAF-3P 1 1 SNA

15 DB61-00250A HOLDER-WIRE CLAMP ABS,BLK 1 1 SNA

16 6002-000527 SCREW-TAPPING M4xL10 2 2 SNA

17 DB81-00547B INSULATOR-KFR MICA 1 1 SNA

18 6009-001001 SCREW-SPECIAL M4xL8 1 1 SNA

19 6001-001054 SCREW-MACHINE M4xL10 1 1 SNA

20 DB65-10088D CABLE-TIE NY-66 1 1 SNA

21 6002-000560 SCREW TAPPING M4xL10 1 1 SNA

Q'TY

5-8

8. Schematic Diagram

8-1 Indoor Unit

This Document can not be used without Samsung’s authorization.

8-1Samsung Electronics

8-2 Outdoor Unit

This Document can not be used without Samsung’s authorization.

Samsung Electronics 8-2

Samsung Electronics 4-1

4. Disassembly and Reassembly

■ Necessary Tools

Item Remark

+SCREW DRIVER

MONKEY SPANNER

Samsung Electronics

4-1 Indoor Unit

No Parts Procedure Remark

1 Front Grille 1) Stop the air conditioner operation and

shut off the main power.

2) Open the Front Grille by pulling right and
left sides of the hook.

3) Loosen 1 of the right screw(CCW) and detach
the Terminal Cover. (Use +Screw Driver.)

4) Detach the thermistor from the Front Grille.

5) Loosen 2 fixing screws(CCW) of Front Grille.

6) Unlock 3 hooks to fix Panel Front and Tray
Drain. (Use +Screw Driver.)

4-2

Samsung Electronics

No Parts Procedure Remark

7) Unlock 3 hooks to fix Panel Front and
Back-Body.

Disassembly and Reassembly

2 Control-In

(Main PCB)

3 Tray Drain 1) Pull Tray Drain out from the Back Body.

1) Take all the connector of PCB upper side out.
(Inclusion Power Cord)

2) Detach the outdoor unit connection wire from
the Terminal Block.

3) Loosen 4 fixing screws(CCW) of Ass'y
Control-In. (Use +Screw Driver.)

You can disassembly Ass'y Control In

without evaporator disassembled.

4-3

Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

4

Heat Exchanger

1) Loosen 2 fixing earth screws(CCW) of right
side. (Use +Screw Driver.)

2) Detach the Connection Pipe.

3) Detach the Holder Pipe at the rear side.

4) Loosen the 4 fixing screws(CCW) of right and
left side. (Use +Screw Driver.)

5) Lifting the Heat Exchanger up a little to push
the up side for separation from the indoor
unit.

First, check Comp. Down and then disconnect

the connection pipes before you disassemble
the Evaporator from indoor unit.

5

Fan Motor

&

Cross Fan

1) Loosen the fixing screw(CCW).
(Use +Screw Driver.)

2) Detach the Fan Motor from the Fan.

3) Detach the Fan From the left Holder Bearing.

4-4

Samsung Electronics

4-2 Outdoor Unit

No Parts Procedure Remark

1 Common Work 1) Loosen 1 fixing screw(CCW) of the Cover-Side.

(Use +Screw Driver.)

2) Loosen each 4 screws(CCW) on both right and
left Cabinet Side edges and a fixing screw on
the Cabinet Front lower to detach the Cabinet
Front. (Use +Screw Driver.)

3) Detach the Cabinet Front like the picture on
the right side.

4) Loosen 1 screw(CCW) fixed to assemble
Plate Control Out with Cabinet-Side RH.
(Use +Screw Driver.)

4-5

4-6 Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

5) Loosen 2 fixing screws(CCW) on the rear side
of Cabinet-Side RH. (Use +Screw Driver.)

6) Loosen 3 screws(CCW) fixed to assemble
Bracket Valve with Cabinet-Side RH.
(Use +Screw Driver.)

7) Loosen 2 fixing screws(CCW) of Cabinet
Side LF. (Use +Screw Driver.)

Samsung Electronics 4-7

No Parts Procedure Remark

2 Ass'y Control Out 1) Detach the Motor Wire from the PCB of

Ass'y Control Out.

2) Detach several connectors from the PCB of
Ass'y Control Out.

Disassembly and Reassembly

3) Detach 2 Connect Wires from Reactor.

4) Loosen 1 screw(CCW) fixed to assemble
Ass'y Control Out with Partition.
(Use +Screw Driver.)

Disassembly and Reassembly

No Parts Procedure Remark

3 Fan

&

Motor

4 Heat Exchanger 1) Loosen 2 fixing screws(CCW) on both sides.

5 Ass'y Valve 4-Way

&

Ass'y Valve EEV

1) Release the refrigerant at first.

2) Loosen fixing screw(CW).

(Use Monkey Spanner.)

3) Disassemble the pipes in both inlet and outlet

with welding torch.

4) Detach the Heat Exchanger.

(Use +Screw Driver.)

2) Disassemble the pipes in both inlet and outlet
with welding torch.

3) Detach the Heat Exchanger.

Before you disassemble the pipes and

Condenser, be sure that there should be
no refrigerant remained in the unit.

1) Loosen 4 bolts(CCW) fixed to assemble Valve
Service with Bracket Valve like the picture on
the right side. (Use Monkey Spanner.)

2) Disassemble the pipes assembled the suction
and discharge sides of the Compressor with
welding torch.

6 Compressor 1) Loosen the Nut(CCW) of Terminal Cover.

(Use Monkey Spanner.)

2) Detach the Terminal Cover and detach
the Connect Comp Wire from Compressor.

3) Disassemble the Felt Comp Sound.

4) Loosen the 3 bolts(CCW) at the bottom of
Compressor like the picture on the right side.
(Use Monkey Spanner.)

4-8 Samsung Electronics

MEMO

Samsung Electronics 4-9

Samsung Electronics

12. Troubleshooting

12-1 Items to be checked first

1. The input voltage should be rating voltage ±10% range.
The air conditioner may not operate properly if the voltage is out of this range.

2. Is the link cable linking the indoor unit and the outdoor unit linked properly?
The indoor unit and the outdoor unit shall be linked by 5 cables.
Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
Otherwise the air conditioner may not operate properly.

3. When a problem occurs due to the contents illustrated in the table below it is a symptom not related to the malfunction of the
air conditioner.

No Operation of air conditioner Explanation

1 The OPERATION indication LED(BLUE) blinks when a power

plug of the indoor unit is plugged in for the first time.

2 In a COOL operation mode, the compressor does not

operate at a room temperature higher than the setting
temperature that the INDOOR FAN should operate.

[In case of heat pump model]

In a HEAT operation mode, the compressor does not
operate at a room temperature lower than the setting
temperature that indoor fan should operate.

3

Fan speed setting is not allowed in DRY( ) mode.

4

Compressor stops operation intermittently in DRY( )
mode.

5 Timer LED(ORANGE) of the indoor unit lights up and the

air conditioner does not operate.

6 The compressor stops intermittently in a COOL mode or

DRY mode, and fan speed of the indoor unit decreases.

7 [In case of heat pump model]

Compressor of the outdoor unit is operating although it is
turned off in a HEAT mode.

It indicates power is on. The LED stops blinking if the operation
ON/OFF button on the remote control unit is pushed.

In happens after a delay of 3 minutes when the compressor is
reoperated. The same phenomenon occurs when a power is on.
As a phenomenon that the compressor is reoperated after a
delay of 3 minutes, the indoor fan is adjusted automatically with
reference to a temperature of the air blew.

The speed of the indoor fan is set to LL in DRY mode.
Fan speed is selected automatically in AUTO mode.

Compressor operation is controlled automatically in DRY mode
depending on the room temperature and humidity.

Timer is being activated and the unit is in ready mode.
The unit operates normally if the timer operation is cancelled.

The compressor stops intermittently or the fan speed of the
indoor unit decreases to prevent inside/outside air frozen
depending on the inside/outside air temperature.

When the unit is turned off while de-ice is activated, the
compressor continues operation for up to 9 minutes(maximum)
until the deice is completed.

8 [In case of heat pump model]

The compressor and indoor fan stop intermittently in HEAT
mode.

9 [In case of heat pump model]

Indoor fan and outdoor fan stop operation intermittently
in a HEAT mode.

12-1

The compressor and indoor fan stop intermittently if room
temperature exceeds a setting temperature in order to protect
the compressor from overheated air in a HEAT mode.

The compressor operates in a reverse cycle to remove
exterior ice in a HEAT mode, and indoor fan and outdoor
fan do not operate intermittently for within 20% of the total
heater operation

Samsung Electronics

12-2 Fault Diagnosis by Symptom

12-2-1 No Power (completely dead)-Initial diagnosis

1. Checklist :

1) Is input voltage normal?

2) Is AC power linked correctly?

3) Is input voltage of DC regulator IC KA7805 (IC02) normal? (11VDC-12.5VDC)

4) Is output voltage of DC regulator IC KA7805 (IC02) normal? (4.5VDC-5.5VDC)

2. Troubleshooting procedure

Unplug the power cord and

plug it after 30 seconds

Press the

Power Button on the

remote control unit to operate the

the fuse on the control board is normal.

air conditioner

does not operate

◆

Check the indoor unit

control board

Yes

Check whether

2 wires of power cord are

connected correctly to the

terminal block and

control board.

Yes

Check whether

FUSE(F701) : T3.15[A]/250[V]

Yes

operate

No

No

◆

Check the display board

Reconnect wires correctly

Replace fuse

Check the output of

SMPS on the control board.

Input power: AC230±15%[V]

IC02 Input: DC12[V]
IC02 output: DC5[V]

Yes

◆

Check the setting temperature

No

PCB should be replaced

12-2