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LG WR-8030 Service Manual
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LG WR-8030 Service Manual

LG WR-8030 Service Manual

Room air conditioner
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Room Air Conditioner

SERVICE MANUAL

CAUTION
- BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
- ONLY FOR AUTHORIZED SERVICE.
MODEL: WR-8030
WM-1031
WM-1231
HBLG8003R
R1200M
R1200E
WEBSITE http://biz.LGservice.com
E-MAIL
http://www.LGEservice.com/techsup.html
WM-8031
WR-1230
WR-1030
HBLG1003R
L1204R

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Summary of Contents for LG WR-8030

  • Page 1: Room Air Conditioner

    WEBSITE http://biz.LGservice.com E-MAIL http://www.LGEservice.com/techsup.html Room Air Conditioner SERVICE MANUAL CAUTION - BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE. MODEL: WR-8030 WM-8031 WM-1031 WR-1230 WM-1231 WR-1030 HBLG8003R HBLG1003R R1200M L1204R R1200E...

  • Page 2: Table Of Contents

    CONTENTS 1. PREFACE 3. INSTALLATION 1.1 SAFETY PRECAUTIONS........2 3.1 SELECT THE BEST LOCATION....13 1.2 INSULATION RESISTANCE TEST ....2 3.2 CHECK OF INSTALLATION......13 1.3 SPECIFICATIONS...........3 3.3 HOW TO DRAIN..........13 1.4 FEATURES............4 3.4 HOW TO INSTALL ........14 1.5 CONTROL LOCATIONS .........4 3.4.1 WHEN USING GASKET.......14 3.4.2 WHEN USING INSTALLATION KITS...14 2.

  • Page 3: Specifications

    1.3 SPECIFICATIONS 1.3.1 FOR WR-8030, WM-8031, WM-1031, WR-1230, WM-1231, HBLG8003R, HBLG1003R, WR-1030, R1200M, L1204R, R1200E WM-1231 MODELS WM-8031 WM-1031 WR-1230 WR-8030 L1204R WR1030 ITEMS HBLG8003R HBLG1003R R-1200M R1200E POWER SUPPLY 1ø, 115, 60Hz COOLING CAPACITY (Btu/h) 8,000 10,000 12,000 10,000...

  • Page 4: Features

    1.4 FEATURES • Built-in adjustable Thermistor • Designed for COOLING ONLY. • Washable one-touch filter • Powerful and whispering cooling. • Compact size • Slide-in and slide-out chassis for the simple • Reliable and efficient rotary compressor is equipped. installation and service. •...
  • Page 5 Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner. POWER BUTTON To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again. This button takes priority over any other buttons.

  • Page 6: Disassembly Instructions

    2. DISASSEMBLY INSTRUCTIONS — Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the lnlet grille downward and remove the air filter. 2. Remove the screw which fastens the front W ER grille.(See Figure 1) TI ME...

  • Page 7: Air Handling Parts

    2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE AND TURBO FAN 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove the control box. (Refer to section 2.1.3) 4. Remove the 4 screws which fasten the brace. 5.

  • Page 8: Shroud

    2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the shroud. (See Figure 8) 3. Re-install the components by referring to the removal procedure, above. Figure 8 2.3 ELECTRICAL PARTS 2.3.1 OVERLOAD PROTECTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2.

  • Page 9: Capacitor

    2.3.3 CAPACITOR 1. Remove the control box. (Refer to section 2.1.3) 2. Open the top cover from the control box. (See Figure 11) 3. Pull out the capacitor from the control box. 4. Disconnect all the leads of capacitor terminals. 5.

  • Page 10: Motor

    2.3.5 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the turbo fan. (Refer to section 2.2.1) 3. Remove the fan. (Refer to section 2.2.2) 4. Remove the 4 screws which fasten the motor from the air guide. (See Figure 13) 5.

  • Page 11: Capillary Tube

    2.4.3 CAPILLARY TUBE 3. Remove the capillary tube. 1. Remove the cabinet. (Refer to section 2.1.2) 4. Re-install the components by referring to notes. 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above) NOTES —...
  • Page 12 Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 16B-Charging Figure 16A-Pulling Vacuum —12—...

  • Page 13: Installation

    3. INSTALLATION 3.1 SELECT THE BEST LOCATION 1.To prevent vibration and noise, make sure the unit is installed securely and firmly. 2.Install the unit where the sunlight does not shine FENCE directly on the unit. AWNING 3.The outside of the cabinet must extend outward for COOLED AIR at least 12"...

  • Page 14: How To Install

    3.4 HOW TO INSTALL 3.4.1 WHEN USING GASKET COOL HEAT DEFROST COOL HEAT DEFROST ENERGY ENERGY SAVER SAVER INDOOR DESIRED INDOOR DESIRED PURYFIER AUTO PURYFIER RESTART AUTO RESTART RIGHT SIDE HORIZONTAL LINE 1. WINDOW (WIDTH-A, HEIGHT-B) 4. DETAILS 5.1 x 30 ROUND HEAD WOOD SCREWS 2.

  • Page 15: Suggested Tool Requirements

    SUGGESTED TOOL REQUIREMENTS SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL PREPARATION OF CHASSIS 1. Remove the screws which fasten the cabinet at Shipping Screws both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet.
  • Page 16 3. Loosely assemble the sill support using the parts INDOOR OUTDOOR Figure Sill Support Bolt Figure 22 4. Select the position that will place the sill support near the outer most point on sill (See Figure Frame Guide Screw(Type A) NOTE: Be careful when you install the cabinet (Frame Guides are broken easily).

  • Page 17: Outside Dimensions

    10. Slide the unit into the cabinet.(See Fig. 26) CAUTION: For security purpose, reinstall screws (Type A) at the cabinet's sides. Power cord Screw(Type A) Screw(Type A) Figure 26 11. Cut the Foam-Strip to the proper length and insert between the upper and lower window sash. Foam-Strip (See Fig.

  • Page 18: Piping System

    4.2 PIPING SYSTEM CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COIL Figure 32 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS...

  • Page 19: Troubleshooting Guide

    4.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling.
  • Page 20 Fails to Start Check of power source. Check circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Compressor only fails to Fan only fails to start. start. Improper wiring. Drop of power voltage.
  • Page 21 I ELECTRICAL PARTS TROUBLESHOOTING GUIDE: WM-8031, WM-1031 Possible Trouble 1 The unit does not operate. • Check the Fuse. • Check the Fuse. Is the Trans input power • Check the wiring diagram. • Check the wiring diagram. AC 115V? •...
  • Page 22 Possible Trouble 2 The compressor does not operate. Is setting • Select the setting Temp. to lower Number. Temp. set lower than Room Temp.-0.5°C? Is the voltage No.10 Is the voltage N0.9 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 12V? delay? •...
  • Page 23 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 • Exchange IC01M. of IC01M DC 12V? Is the voltage NO.16 or 15 or 13 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Lo.
  • Page 24 Possible Trouble 6 It displays abnormally on DC PCB Ass’y. • Exchange IC01G. Is the IC01G all right? • Connect connector Is the connection of to CN-AC/DC exactly. CN-AC/DC all right? Does the IC03G • Exchange IC03G (Q01G~Q04G for Delux Model) (Q01G~Q04G for operate normally on DC Delux Model).
  • Page 25 COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Rotary switch Check switch continuity. Refer to wiring diagram for terminal identification.
  • Page 26 COMPLAINT CAUSE REMEDY Compressor will not run, Thermostat Check the position of knob If not at the coldest but fan motor runs. setting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace thermostat if circuit is open. Capacitor (Discharge Check the capacitor.

  • Page 27: Schematic Diagram

    5. SCHEMATIC DIAGRAM 5.1 CIRCUIT DIAGRAM MODEL: WM-8031, WM-1031, WM-1231, MODEL: WR-8030, WR-1230, WR-1030, HBLG8003R, HBLG1003R, R1200M L1204R, R1200E POWER INPUT CN-AC/DC CN-AC/DC CN-MOTOR BK(BR) WH(BL) (Plain) (Ribbed) GN/YL ROTARY SWITCH GN(GN/YL) MOTOR DC PCB ASSEMBLY CAPACITOR CN-TH1 MOTOR OR(BR)

  • Page 28: Electronic Control Device

    5.2 ELECTRONIC CONTROL DEVICE MODEL : WM-8031, WM-1031, WM-1231,HBLG8003R, HBLG1003R, L1204R, R1200E —28—...

  • Page 29: Components Location(For Main P.c.b Asm)

    5.3 COMPONENTS LOCATION(FOR AC P.C.B ASM) MODEL : WM-8031, WM-1031, WM-1231, HBLG8003R, HBLG1003R, L1204R, R1200E R01T Q01T CN-MOTOR CN-HVB CN-TELE CN-TH2 Q03T C03T CN-PWR Q04T QIC02DT CN-4WAY ZNR01J C01J R01J C02D C04D C05D E03J E02J E01J C01D E04J E05J POWER TRANS RY-COMP FUSE...

  • Page 30: Exploded View

    6. EXPLODED VIEW 731373 554030 149980 148000 130910 W48602 346811 559011 359012 W48602 352390-2 354210 249950 263230 152312 352390-1 268714 268712 135500 W0CZZ 238310 349001 567502 349480 130410 264110 237200 554160 135312 147582 249950 550140 147581 552111 266003 352113 269310 352115 135500 W0CZZ...

  • Page 31: Replacement Parts List

    7. REPLACEMENT PARTS LIST R: Service Parts N: Non Service Parts PART NO. LOCATION DESCRIPTION REMARK WR-1230 WM-1231 WR-8030 WM-0831 WM-1031 R1200M L1204R 130410 BASE ASSEMBLY,SINGLE 3041A20021V 3041A20021V 3041A20021N 3041A20020L 3041A20020L 130910 CABINET ASSEMBLY,SINGLE 3091AR2317K 3091AR2317K 3091AR2317K 3091A10032M 3091A10032M 135312...
  • Page 32 R: Service Parts N: Non Service Parts PART NO. LOCATION DESCRIPTION REMARK HBLG8003R HBLG1003R WR-1030 R1200E 130410 BASE ASSEMBLY,SINGLE 3041A20021V 3041A20021N 3041A20021N 3041A20020L 130910 CABINET ASSEMBLY,SINGLE 3091AR2317K 3091AR2317K 3091AR2317K 3091A10032M 135312 GRILLE ASSEMBLY,FRONT(SINGLE) 3531A20160A 3531A20160A 3531A20097A 3531A20161B 135303 GRILLE,INLET 3530A20075A 3530A20075A 3530A20038A 3530A20076A...
  • Page 33 MEMO —33—...
  • Page 34 MEMO —34—...
  • Page 35 June, 2004 Printed in Korea P/No : 3828A20306A...

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Wm-8031Wm-1031Wr-1230Wm-1231Wr-1030Hblg8003r ... Show all

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