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Samsung AQ12A5(6)MB Service Manual
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Samsung AQ12A5(6)MB Service Manual

Room air conditioner
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SERVICE
AIR CONDITIONER

ROOM AIR CONDITIONER

INDOOR UNIT
AQ12A5(6)MB
AQ12A5(6)ME
AQ09A5(6)ME
SH09ZA5(6)
AQ07A5(6)ME
SH07ZA5(6)
AQ09A7(8)ME
SH09ZA7(8)
AQ07A7(8)ME
SH07ZA7(8)
Manual
Installation
OUTDOOR UNIT
UQ12A5(6)MB
UQ12A5(6)ME
UQ09A5(6)ME
SH09ZA5(6)X
UQ07A5(6)ME
SH07ZA5(6)X
UQ09A7(8)ME
SH09ZA7(8)X
UQ07A7(8)ME
SH07ZA7(8)X
CONTENTS

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Summary of Contents for Samsung AQ12A5(6)MB

  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AQ12A5(6)MB UQ12A5(6)MB AQ12A5(6)ME UQ12A5(6)ME AQ09A5(6)ME UQ09A5(6)ME SH09ZA5(6) SH09ZA5(6)X AQ07A5(6)ME UQ07A5(6)ME SH07ZA5(6) SH07ZA5(6)X AQ09A7(8)ME UQ09A7(8)ME SH09ZA7(8) SH09ZA7(8)X AQ07A7(8)ME UQ07A7(8)ME SH07ZA7(8) SH07ZA7(8)X SERVICE Manual AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Operating Instructions and Installation 4.
  • Page 2 ELECTRONICS © Samsung Electronics Co., Ltd. Sep. 2000. Printed in Korea. Code No. DB81-00181A(2)

  • Page 3: Precautions

    Relocate the unit if neces- sary. 9. Keep children away from the unit while it is being repaired. Fig. 1-3 No Kids Nearby! 10. Be sure to clean the unit and its surround- ing area. Fig. 1-4 Clean the Unit Samsung Electronics...
  • Page 4 M E M O Samsung Electronics...

  • Page 5: Product Specifications

    2. Product Specifications 2-1 Table Model AQ12A5(6)MB AQ12A5(6)ME AQ09A5(6)ME/SH09ZA5(6) AS07A3(4)ME/SC07ZA3(4) AS12A1(2)ME/SC12ZA1(2)/SC12ZA1(2)A AQ07A5(6)ME/SH07ZA5(6) AQ09A7(8)ME/SH09ZA7(8) AQ07A7(8)ME/SH07ZA7(8) Item Indoor unit Outdoor unit Indoor unit Outdoor unit Indoor unit Indoor unit Outdoor unit Outdoor unit Indoor unit Indoor unit Outdoor unit Outdoor unit Indoor unit...

  • Page 6: Operating Instructions And

    To select the 5 way function with the remote control, press the 5 way button one or more times until the desired mode is selected.. Each time you press the 5 way button Each 5 way indicator on the indoor unit comes on in order. Samsung Electronics...
  • Page 7 De-ice end by sensing of the processing 7. FAN SPEED : Manual (3 step), Auto (4 step) time by de-ice Condition. Fan speed automatically varies depending on both the difference between setting and the room temperature. Samsung Electronics...
  • Page 8 If the one more time press the button, blades loca- tion is stop. 10. 24-Hour ON/OFF Real Setting Timer. : The air conditioner is turned ON at a specified time using Samsung Electronics...
  • Page 9 M E M O Samsung Electronics...

  • Page 10: Disassembly And Reassembly

    7) Pull the upper left and right of discharge softly for the outside cover to be pulled out. 8) Pull softly the lower part of discharge and push it up. Caution; Assemble the front panel and fix the hooks of left and right. Samsung Electronics...
  • Page 11 2) Loosen the fixing two screws and separate the motor holder. 3) Loosen the fixing screw of fan motor. (By use of M3 wrench) 4) Separate the fan motor from the fan. 5)Separate the fan from the left holder bearing. Samsung Electronics...
  • Page 12 2) Separate the connection wire from the termi- nal block. 3) Loosen 6 fixing screws and separate the upper cabinet. 4) Loosen the fixing screw of Ass'y E-part. 5) Loosen 5 fixing screws and separate the side cabinet. Samsung Electronics...
  • Page 13 1) Loosen 4 fixing screw of the Guard-Fan. 2) Remove the nut flange (Turn to the right to remove, as it is a left hand screw) 3) Separate the fan. 4) Loosen four fixing screws to separate the motor. Samsung Electronics...
  • Page 14 Upper. 4) Loosen two fixing screws of Ass'y E-part. 5) Loosen nine fixing screws and separate the cabi side. Fan and Motor 1) Do “1”, above. 2) Loosen four screws and seperaate Guard Fan from front cabinet Samsung Electronics...
  • Page 15 3) Disassemble the inlet and outlet pipe of com- pressor by welding. 4) Disassemble the inlet and outlet pipe of con- denser by welding 5) Loosen the three bolts of the lower part. 6) separate the compressor. Samsung Electronics...
  • Page 16 3) Separate the connection wire from the termi- nal block. 4) Loosen six fixing screws and separate the cabi front. 5) Loosen the one fixing screw of Ass'y E-part. 6) Loosen 12 fixing screws and separate the cabi side. Samsung Electronics...
  • Page 17 Compressor 2) Open the terminal cover of compressor and unscrew the connection terminal. 3) Disassemble the inlet and outlet pipe of com- pressor by welding. 4) Loosen the three bolts of the lower part. 5) separate the compressor. Samsung Electronics...

  • Page 18: Troubleshooting

    Indoor unit Room sensor Error (open or short) 3 STD and TIMER LED blinking (1Hz) Indoor unit heat exchanger temperature sensor Error (open or short) 4 NATURE LED blinking (1Hz) Indoor fan malfunctioning (for spead is Below 450rpm) Samsung Electronics...

  • Page 19: Fault Diagnosis By Symptom

    Check PCB pattern. Replace ICO2 10ms Replace main PCB. Is voltage output terminal of TLP180(PC02) normal? Are voltage at #48 and #49 of the micom normal? Replace resonator (X301) 250ns Replace TLP180(pc02) Is operation normal? Replace micom Samsung Electronics...
  • Page 20 Test rod location Normal voltage PCB CN72 Condition Fan operate about AC 180V pin #3 and #5 MF-C is out of order Replace MFC Fan motor Fan motor should be replaced. is out of order. Samsung Electronics...
  • Page 21 Is rating voltage ±10% range applied relay between Terminal block out of order replaced. NO(N1) and No. 1 Outdoor unit is out of order. Is the room sensor normal register? 10°C 20°C 30°C 17.96k Ω 12.09k Ω 8.3k Ω Samsung Electronics...
  • Page 22 Is the voltage between CN71 #3 and CN71 #5 rating voltage ±10% range Abnormal RY73 Abnormal 4way valve of Outdoor Unit. or connecting Cable PCB should be replaced. 4 way valve should be replaced or connecting Cable Check. Samsung Electronics...

  • Page 23: If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)

    Voltage at PIN #30 of Remocon Micom change? Voltage at collecter of Q601 or Q602 change? Q601(C4375Y) or Q602(C1623Y) is faulty. IR LED(CL-1L5EU) is faulty. Voltage at pin #26 of micom (IC04) change (INDOOR UNIT)? Receiver module is faulty. Micom (IC04) is faulty. Samsung Electronics...
  • Page 24 5-3-2 Procedure The parts should be replaced in the following procedure. Check for any faulty part. Detach the faulty part. Replace it with a new part. Check the operation of the new part. The repair is completed. Samsung Electronics...
  • Page 25 Voltage check SMPS circuit is faulty 1. check voltage of IC06 IC06 is faulty (pin#10,pin#8) Set the TURBO mode : relay on 0.7[v] : relay off 12[v] 2. Voltage at terminal block RY71 is faulty ((N1) -1) rating voltage Samsung Electronics...

  • Page 26: Fault Diagnosis Of Major Parts

    257±10% Stepping Motor ∞, O Ω … open or short (UP/DOWN swing motor) Abnormal Measure resistance between red wire and each terminal. Normal Approx. 380Ω at ambient temperature (20°C ~30°C) ∞, O Ω … open or short Abnormal Samsung Electronics...

  • Page 27: Set Up The Model Option

    Press the marked key to input the option number. example) 021E31 Result) Go to 4th step if it displays as shown in the right (The number increases from 1~9, and A, b, C, d, E, F whenever pressing the key.) 5-10 Samsung Electronics...
  • Page 28 1 - 6steps Refer to the right side if the error appears. 5-11 Samsung Electronics...
  • Page 29 <Table of the option code> MODEL OPTION CODE AQ12A5MB 017725-17021d AQ12A6MB 007725-17021d AQ12A5ME 017626-17021d AQ12A6ME 007626-17021d AQ09A5ME 016A25-1700d9 SH09ZA5 AQ09A6ME 006A25-1700d9 SH09ZA6 AQ07A5ME 014A25-1700b7 SH07ZA5 AQ07A6ME 004A25-1700b7 SH07ZA6 AQ09A7ME 016825-1700d9 SH09ZA7 AQ09A8ME 006825-1700d9 SH09ZA8 AQ07A7ME 014825-170067 SH07ZA7 AQ07A8ME 004825-170067 SH07ZA8 5-12 Samsung Electronics...
  • Page 30 M E M O 5-13 Samsung Electronics...

  • Page 31: Exploded Views And Parts List

    6. Exploded Views and Parts List 6-1 Indoor Unit 20-6 20-6-1 20-1 20-4 20-5 20-3 20-2 13-2 13-3 13-4 17 18 13-1 Samsung Electronics...
  • Page 32 Exploded Views and Parts List Parts List Q’TY Description CODE NO REMARK AQ09A5(6)ME/SH09ZA5(6) AQ07A5(6)ME/SH07ZA5(6) AQ12A5(6)MB AQ12A5(6)ME AQ09A7(8)ME/SH09ZA7(8) AQ07A7(8)ME/SH07ZA7(8) DB64-00085A GRILLE AIR INLET DB63-00064A GUARD-AIR FILTER DB74-00011A FILTER CLEANER ASS´Y DB63-00067A COVER TEMINAL DB92-00031E ASS´Y PANEL DB67-00051A SPACER EVAP LOW DB67-00032A...
  • Page 33 6-2 Outdoor Unit(UQ12A5(6)MB(E)) Samsung Electronics...
  • Page 34 DB63-20002A GASKET EPDM DB63-10165D COVER TERMINAL DB60-30018A NUT-FLANGE M5, SM20C DB96-00513A ASS´Y-CAPILLARY ASS’Y(1.7 1100) DB99-00085A ASS´Y-CHECK VALVE ASS’Y (C=1.7 1200 H=1.5 300) DB96-00509A ASS´Y COND ASS’Y(SF) DB64-00136B CABINET SIDE ASS’Y(BENDING) DB67-90025A HANDLE CABI, RH DB72-00211A CLOTH-COMP SIDE FELT Samsung Electronics...
  • Page 35 Exploded Views and Parts List Outdoor Unit • UQ07A5(6)ME • SH07ZA5(6)X • UQ09A5(6)ME • SH09ZA5(6)X Samsung Electronics...
  • Page 36 ASS´Y VALVE 4WAY VK1100B+3/8” 18-1 DB62-00118A TUBE-4WAY VALVE BRASS, 3/8INCH, T1.0, RANCO 18-2 DB62-40073B VALVE-SERVICE C3771BD, 432L/H, 3/8”, 30Kg/cm2G DB75-00029A ASS´Y COND 1.5D-FIN, COATTING 620mm DB64-60171B CABINET-SIDE SECC-P, T 0.8, A-P/J DB67-90024A HANDLE-CABI LF DB63-10443C COVER-E, PARTS ASS’Y SC-90073R Samsung Electronics...
  • Page 37 Outdoor Unit • SH07ZA7(8)X/UQ07A7(8)ME • SH09ZA7(8)X/UQ09A7(8)ME Samsung Electronics...
  • Page 38 DB93-00413A ASS’Y-LEAD WIRE 13-3 DB61-00174A HOLDER CAPACITOR 13-4 DB65-40049D TERMINAL BLOCK;4P 13-5 2301-001375 C OIL;1.5µF, 450VAC DB90-00108C ASS´Y CABI FRONT 14-1 DB63-00099A GUARD FAN WIRE 14-2 DB61-00173A GUIDE BELL MOUTH DB90-00152A ASS´Y COVER CONTROL DB94-00021A ASS´Y COVER VALVE Samsung Electronics...
  • Page 39 6-3 Remote Control & PCB Box 6-3-1 ASS’Y REMOCON : DB93-00251L Parts List Description Q’TY Remark INLAY LCD CASE TOP KEY RUBBER ASS’Y PCB REMOCON CASE LOW BATTERY COVER Samsung Electronics...
  • Page 40 BRACKET EARTH SGCC-M HOLDER WIRE CLAMP CONNECTOR WIRE EARTH AWG#16 SCREW WP, TH + M4 L8, ZPC(WHT), T.C SCREW PH, M3 SCREW TH + M4 L16, ZPC(WHT), SWRCH HOLDER CLAMP IN SEAL PANEL FRONT RH SEAL H/CONTROL FRONT 6-10 Samsung Electronics...

  • Page 41: Block Diagrams

    7. Block Diagrams 7-1 Refrigerating Cycle Block Diagram UQ12A5(6)MB use only Note Note - The check valve is applied only to UQ12A5(6)ME/SH12ZA5(6)X as below Samsung Electronics...

  • Page 42: Pcb Diagrams

    8. PCB Diagrams 8-1 ASS’Y MAIN PCB;DB93-00267A TOP PATTERN Samsung Electronics...
  • Page 43 C-FILM CR71 1.2µF 450V C-AL C105, C106, C108 SD 470µF 25V C-AL C601 47µF 50V C-AL C111 470V 16V C-ELEC C101, C102 SD 6.8V 450V C-CERAMIC C104 SDE2G222M12BL1 C-FILM XC71 100NK 275Vx 2 TR SWITCH IC01 TNY 255P Samsung Electronics...
  • Page 44 8-2 ASS’Y MAIN PCB;DB93-00267A BOTTOM PATTERN Samsung Electronics...
  • Page 45 R2012 1kΩ ± 5 R401, R403, R408, R607 R-CHIP R410 R2012 0 ± 5 R-CHIP R606 R2012 560Ω ± 5 DIODE DRIDGE RD71 DF06S PHOTO COUPLER PC02 TLP180(GB-TPL) ZENER DIODE ZD12 BZX84-C11 ZENER DIODE ZD11 BZX84-C3V6 EEPROM IC51 93LC56B-I/SN Samsung Electronics...
  • Page 46 64.5x53 LED-LAMP LD01,LD02,LD03,LD04,LD05 SO5511 LED-LAMP LD06 SY5511 MODULE REMOCON IRM01 PNA4612MOOHB DIODE SWITCHING IN4148 R-CARBON R01,R02,R03 470 1/2W 5% CONNECTOR WIRE C/W-DISPLAY SMAW200-10P TACT SWITCH SW01 KPT-1105A C-CERAMIC 104Z C-CERAMIC 102K JUMP JP-1,JP02 10mm COVER DISPLAY UP ABS(V2) Samsung Electronics...

  • Page 47: Wiring Diagrams

    9. Wiring Diagrams 9-1 Indoor Unit Samsung Electronics...
  • Page 48 9-2 Outdoor Unit • UQ A5(6) DIAGRAM-OUTDOOR C1 : MOTOR CAPACITOR DB68-01624A C2 : COMP CAPACITOR • UQ A7(8) / SH ZA7(8)X DIAGRAM-OUTDOOR C1 : MOTOR CAPACITOR DB68-01765A C2 : COMP CAPACITOR Samsung Electronics...
  • Page 49 And if you need more information, please see the service bulletin Copyright Trademarks Samsung is a registered trademark and ¨Ï 1995 by Samsung Electronics Co., Ltd. SyncMaster 17GLi/CMG7387L and MacMaster All rights reserved. Cable Adapter are trademark of Samsung This manual may not, in whole or in part, be Electronics Co., Ltd.

  • Page 50: Schematic Diagrams

    10. Schematic Diagrams 10-1 Indoor Unit 10-1 Samsung Electronics...

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