Samsung AW078AA Service Manual
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Samsung AW078AA Service Manual

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SERVICE
AIR CONDITIONER

ROOM AIR CONDITIONER

AW078AA
AW069AB
AW088AA
AW089AB
AW108AA
AW109AB
AW128AA
AW129AB
Manual
CONTENTS

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  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER AW078AA AW069AB AW088AA AW089AB AW108AA AW109AB AW128AA AW129AB SERVICE Manual AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Installation and Operating Instructions 4. Disassembly and Reassembly 5. Troubleshooting 6. Exploded Views and Parts List 7. Block Diagram...

  • Page 2: Precautions

    Relocate the unit if necessary. 9. Keep children away from the unit while it is being repaired. 10. Be sure to clean the unit and its surrounding area. Fig. 1-3 No Kids Nearby! Fig. 1-4 Clean the Unit Samsung Electronics...
  • Page 3 Notice : The symbol of model name Type Model Name AW078AA AW069AB AW088AA AW089AB AW109AB AW128AA AW129AB AW108AA Samsung Electronics...

  • Page 4: Product Specifications

    2. Product Specifications 2-1 Table Item Unit of Measure AW069AB AW078AA AW088AA AW089AB Type WINDOW Dimensions: 520×345× 485 (Width×Height× Depth) Packing size: 571×454× 546 (Width×Height× Depth) Voltage Volt Phase Single Frequency Operating Current Power Consumption Refrigerant Type FREON Refrigerant Charge...
  • Page 5 44B098HU2EF 44B098HU2EF 44B124HX1EL 44B124HX1EL Overload Protect MRA12132-12007 MRA12132-12007 MRA98693-12007 MRA98693-12007 Compressor Capacitor F/VAC 45/370 45/370 50/370 50/370 Fan Motor Capacitor F/VAC 15/250 8/250 15/250 15/250 Fan speed 1020/970/900 880/800/740 880/780/710 880/780/710 Thermo Control THERMISTOR Air Swing Model M2CK59ZT79-H Samsung Electronics...
  • Page 6 (Unit : mm) Type Front view Side view 2-2-2 Remote Control Timer setting button Temperature adjustment Sleep timer setting button buttons Operating mode Fan speed selection buttons adjustment buttons Energy Saver button Air flow blade swing button ON/OFF button Samsung Electronics...
  • Page 7 MEMO Samsung Electronics...

  • Page 8: Installation And Operating Instructions

    (obtain a clearance of at least one meter). Caution: Do not use the air conditioner in the following environments : greasy areas (including areas near machines), or marine areas. Contact your local dealer for advice. Samsung Electronics...

  • Page 9: Function Description

    2) Fan motor control in compressor off : After compressor off, the fan motor is operated breeze for 2 minutes and then it turn off. 3) After the fan motor off, the compressor and fan motor is operated normally when the compressor on. Samsung Electronics...
  • Page 10 ERROR OPERATION LED DISPLAY ROOM THERMISTOR E1 displayed (OPEN or SHORT) 1) Set operation in case of error occurrence. • Malfunction of each temperature sensor (open, short) - Error mode display, warning sound. - The operation status is off. Samsung Electronics...
  • Page 11 * Not SLEEP operation is FAN mode Energy Saver Power save mode on and off * Once ON=Power save mode on, Another ON=Power save mode off * Continuous operation is not available. * If operation is OFF, it is considered as an invalid key. Samsung Electronics...
  • Page 12 NO. (3) 7–SEG LED DISPLAY indicates time unit(H) of the tens digit → NO. (4) 7–SEG LED DISPLAY indicates time unit(r) of the units digit → First, 7–SEG LED DISPLAY SLEEP while 15 second, " " Second, 7-SEG LED DISPLAY " " (1) (2) (3) (4) Samsung Electronics...
  • Page 13 10) In case of pressing ”TIMER” key, the convenient reserve TIMER time increase by 1 Hr (1Hr ~ 24Hr). 11) In case of pressing ”SLEEP” key, SLEEP operates. 12) In case of power off, all keys except POWER key are considered as an invalid key. Samsung Electronics...
  • Page 14 4.300 19.480 4.444 20.290 4.594 21.150 4.749 22.050 4.912 22.990 5.080 23.900 5.256 25.030 5.439 26.130 5.630 27.280 5.828 28.470 6.033 29.720 6.246 31.040 6.468 32.430 6.699 33.890 6.941 35.430 7.192 37.050 7.455 38.760 7.729 40.560 8.015 8.313 Samsung Electronics...
  • Page 15 MEMO Samsung Electronics...

  • Page 16: Disassembly And Reassembly

    Perform soldering function Problem? Fill system with nitrogen gas Check for leakage Leakage? Corrective action Check refrigerant oil level Release nitrogen gas? Low oil level? Evacuate system Add oil as necessary Recharge system Pinch and braze filling tube Samsung Electronics...

  • Page 17: Checking The Oil

    4. When the refrigerant is replaced ..add 30cc oil. 5. After vacuum is completed, the oil is filled through the high pressure side. 6. In the event of a refrigerant leak, generally it is not necessary to add oil. (Unless the oil has leaked significantly.) Samsung Electronics...
  • Page 18 Ass'y Cabinet 1. Remove the two screws both side cabinet. 2. Pull the front both side, and remove the unit from the cabinet. Ass'y COVER EVAP 1. Remove 6 screws on the COVER EVAP. 2. Remove the COVER EVAP. Samsung Electronics...
  • Page 19 1. Remove 2 screws on the rear side (Base & pan), and 7 screws on the case cond. Propeller Fan 2. Pull up the CONDENSER from the Base pan. 3. Remove the nut, and remove the propeller fan. 4. Remove the nut, and remove the BLOWER. Samsung Electronics...
  • Page 20 1. Remove 4 screws on the MOTOR, and & remove the motor. the others parts 2. Remove 4 screws on the mounter motor, and remove the mounter motor. 3. Remove the CASE BLOWER. 4. Remove 4 screws on the PARTITION. Samsung Electronics...
  • Page 21 2. Pull the handle on the front side of the bottom, and remove the unit from the cabinet. COVER-EVAP 1. Remove the 8 screws on the COVER EVAP. 2. Remove the COVER EVAP. Samsung Electronics...
  • Page 22 1. Remove 2 screws on the rear side (Base & pan), and 7 screws on the case cond. Propeller Fan 2. Pull up the CONDENSER from the Base pan. 3. Remove the Nut, and remove the propeller fan. 4. Remove the Nut, and remove the BLOWER. Samsung Electronics...
  • Page 23 1. Remove 4 screws on the MOTOR, & and remove the motor. the others parts 2. Remove 4 bolts on the mounter motor, and remove the mounter motor. 3. Remove the CASE EVAP. 4. Remove 4 screws on the partition. Samsung Electronics...

  • Page 24: Troubleshooting

    • Check whether the unit is in "FAN" mode. setting (In "FAN" mode, only the current temperature is displayed, and the desired temperature is not set.) Checking and Display of Fault Area ERROR OPERATION ERROR OPERATION ROOM THERMISTOR (OPEN OR SHORT) E1 displayed Samsung Electronics...
  • Page 25 • Check and replace the C101~104. the C103 electrolytic condenser? • Check the IC01, and IC02 for cold Are the IC01(KA7812) and IC02(KA7805) normal? soldering and a short. • Replace the IC01, and IC02. Replace the assembly main PCB. Samsung Electronics...
  • Page 26 Q905 for a short, KEY PAD. Q901 ~ Q905 square wave? and replace it. Check the IC07 Is the voltage of the for a short, and IC07 No. 10~16 a square value? replace it. Replace the MEMBRANE KEY PAD Samsung Electronics...
  • Page 27 • Replace relevant components. • Check the R415 components. Is the input voltage of the micom(IC04) No. 15 • Check the assembly main PCB micom(IC04). pin of the assembly main PCB a aquare wave? Replace the assembly main PCB. Samsung Electronics...
  • Page 28 - When the compressor is ON, the RY71 should operate. • Replace the relay. • Check the operation of the O.L.P, and replace it if necessary. Is the compressor normal? • Check the compressor resistance.(0Ω : short, ∞Ω : open) Replace the compressor. Samsung Electronics...
  • Page 29 - When the air-swing motor is operated, the (Normal: About 400Ω) RY75 should be operated. • Replace the relay. • Check the air-swing motor resistance. Is the air-swing motor normal? (0Ω : short, ∞Ω : open) Replace the air-swing motor. Samsung Electronics...
  • Page 30 - When the fan motor is Low, RY76 should operate. • Check the fan motor resistance. (0Ω : short, ∞Ω : open) Is the fan motor normal? • Check the fan motor thermal fuse? (130˚C) Replace the fan motor. Samsung Electronics...
  • Page 31 MEMO Samsung Electronics...

  • Page 32: Exploded Views And Parts List

    6. Exploded View and Parts List 6-1 Main unit ( Type "A" And "C" ) You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.kr Samsung Electronics...
  • Page 33 Exploded View and Parts List Part List ( Type “A” And "C") Q'TY DESCRIPTION CODE NO SPECIFICATION AW069AB AW078AA AW088AA AW089AB AW108AA GRILLE AIR-INLET DB64-10158A HIPS ASSY PANEL FRONT DB92-00042E SC94445R 2-1 GUARD AIR-FILTER DB63-30158A HIPS 2-2 PANEL FRONT DB64-70093A...
  • Page 34 Exploded View and Parts List Part List ( Type “A” And "C" ) Q'TY DESCRIPTION CODE NO SPECIFICATION AW069AB AW078AA AW088AA AW089AB AW108AA 23 TUBE CAPILARY DB96-01018A ID1.3*1100 DB96-00992A ID1.3*900 DB96-00993A ID1.42*1200 DB62-00872A 2-ID1.2*1200 24 NUT WASHER DB60-30018A M5 SM20C...
  • Page 35 6-2 Main unit (Type “B”) You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.kr Samsung Electronics...
  • Page 36 COVER TERMINAL DB63-10026A NORYL,SEI-701 MRA12132-12007 DB47-20001U MRA98693-12007 GASKET DB63-20002A EPDM T0.8 NUT WASHER DB60-30028A HEX 2C M8 ZPC GROMMET ISOLATER DB73-00070A NR 3 ASSY CABINET DB90-00364B D-PJT ASSY CONTROL DB93-00674B DB93-00674A TRAY DRAIN DB63-00276A 30FO-PS,T10 ASSY REMOCON DB93-00284K ARC-709 Samsung Electronics...
  • Page 37 Exploded View and Parts List Part List (Type “B”) Samsung Electronics...
  • Page 38 6-3 Ass’y Control Part List ( Type “A” And "C" ) Q'TY DESCRIPTION CODE NO SPECIFICATION AW088AA AW069AB AW078AA AW108AA AW089AB ASSY CONTROL DB93-00465B DB93-00465F DB93-00465A DB93-00465E SWITCH MEMBRANE DB34-00013B 99*134.5,PC PANEL CONTROL DB64-00259B HIPS,T2.0,V5 ASSY PCB MAIN DB93-00407A COOLING...

  • Page 39: Samsung Electronics

    1 0 K / 2 5 1 0 3 A T W I N D O W R E M O C O N D B 6 4 - 0 0 3 2 1 A M T N - G 2 Samsung Electronics...

  • Page 40: Block Diagram

    Fan speed (med) • Buzzer control Swing motor Fan speed (low) • Temperature control Power circuit (DC 5V) • Fan motor control Powercircuit (DC 12V) Cool Energy saver Down Trans (AC15V) Reset Circuit Temp.setting(↑) Oscillation Circuit Temp.setting(↓) Power input (AC230V) Samsung Electronics...
  • Page 41 P2.2 P3.6 REMOCON SENSOR THERMISTOR(103AT) P2.3 P3.5 EEPROM CS OPTION P2.4 P3.4 LOW FAN OPTION P2.5 P3.3 COMPERSSOR OPTION P2.6 P3.2 MIDDLE FAN OPTION P2.7 P3.1 HIGH FAN SAVE OPTION P4.5 P3.0 4-WAY VALVE SWING MOTOR AVref AVss Samsung Electronics...
  • Page 42 MEMO Samsung Electronics...
  • Page 43 8. PCB Diagram 8-1 ASS’Y Main PCB • DB93-00407B Samsung Electronics...
  • Page 44 C408, C409, C902 TRANSISTOR KRA226S Q901~Q905 TRANSISTOR KRC246S Q906 DIODE-SWITCHING(SMALL) 1N4148 D901~D905 DB09-00091A IC-MCU KS88C4716 IC04 3501-001058 RELAY-POWER ID 1U RY71 2802-000103 CERAMIC RESONATOR 10MHz X501 DB07-00010A LED DISPLAY ELF-316GWB 3501-000399 RELAY JQ1A 12V RY72, 73, 75, 76 Samsung Electronics...
  • Page 45 MEMO Samsung Electronics...

  • Page 46: Wiring Diagram

    9. Wiring Diagram CN73 DIAGRAM - ELECTRIC DB68-02015A Samsung Electronics...
  • Page 47 10. Schematic Diagrams 10-1 Main PCB OPTION Resistor Temp. Unit 10K-J ˚C R411 4.7K-J ˚F 10-1 Samsung Electronics Samsung Electronics 10-2...

  • Page 48: Remote Control

    K37 : TIMER K39 : SLEEP K41 : AIR SWING K49 : TEMP. (↓) K50 : TEMP. (↑) K53 : LOW FAN K54 : MID FAN K55 : HIGH FAN K57 : FAN K60 : COOL K63 : ON/OFF 10-3 Samsung Electronics...
  • Page 49 Itself Solution Integrated technology supporting electronic library http://itself.sec.samsung.co.kr Copyright © 2002 By Samsung Electronics Co., Ltd. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable from without prior written permission of Samsung Electronics Co., Ltd.

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