LG LWN2260BCG Service Manual
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LG LWN2260BCG Service Manual

LG LWN2260BCG Service Manual

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LG LWN2260BCG
Owner's Manual
Shop genuine replacement parts for LG LWN2260BCG
Find Your LG Air Conditioner Parts - Select From 2328 Models
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  • Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. LG LWN2260BCG Owner's Manual Shop genuine replacement parts for LG LWN2260BCG Find Your LG Air Conditioner Parts - Select From 2328 Models -------- Manual continues below --------...
  • Page 2 Room Air Conditioner SERVICE MANUAL MODELS: LWM1860BCG/BCL/QCG/QCL/QAG/BAG LWN1860BCG/BCL/QCG/QCL LWN2260BCG/BCL/QCG/QCL LWM1820BCG/BCL/QCG/QCL LWM1821BCG/BCL/QCG/QCL LWN2120BCG/BCL/QCG/QCL LWN2123BCG LWM1830BCG/BCL/QCG/QCL LWN2130BCG/BCL/QCG/QCL,BXN LWN2131BAG LWM2130AAG/BAG LWM1860BCP LWN2120BHG/BHP/QHG LWN2123BHG CAUTION - BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE.

  • Page 3: Table Of Contents

    CONTENTS 1. PREFACE 2.3.4 POWER CORD ........13 1.1 SAFETY PRECAUTIONS .......2 2.3.5 THERMOSTAT ........13 1.2 INSULATION RESISTANCE TEST....2 2.3.6 ROTARY SWITCH .......14 1.3 SPECIFICATIONS ..........3 2.3.7 SYNCHRONOUS MOTOR ....14 1.4 FEATURES .............6 1.5 CONTROL LOCATIONS .........6 2.4 REFRIGERATION CYCLE.........15 1.5.1 COOLING ONLY MODEL ......6 2.4.1 CONDENSER ........15 1.5.2 HEAT PUMP MODEL ......7 2.4.2 EVAPORATOR ........15...

  • Page 4: Specifications

    1.3 SPECIFICATIONS 1.3.1 FOR LWM1860BCG(BCL)/LWN1860BCG(BCL)/LWN2260BCG(BCL)/LWM1820BCG(BCL)LWM1821BCG(BCL) LWN2120BCG(BCL)/LWM1830BCG(BCL)/LWN2130BCG(BCL)/LWN2123BCG/BAG / LWM2130AAG/BAG LWM1860 LWN1860 LWN2260 LWN1820/1 LWN2120 LWM2130 LWN1830 LWN2130 MODELS LWN2123 REMARK BCG(BCL) AAG/ BCG(BCL) ITEMS BAG/BCP (BCL) (BCL) (BCL) (BCL) (BCL) LWN2131BAG 1Ø, 220-240V, 50Hz 1Ø, 220V, 60Hz 1Ø, 208-230V, 60Hz POWER SUPPLY...
  • Page 5 1.3.2 FOR LWM1860QCG(QCL, QAG)/LWN1860QCG(QCL)/LWN2260QCG(QCL)/LWM1820QCG(QCL) LWM1821QCG(QCL)/LWN2120QCG(QCL)/LWM1830QCG(QCL)/LWN2130QCG(QCL) LWM1860 MODELS LWN1860 LWN2260 LWM1820/1 LWN2120 LWM1830 LWN2130 REMARK QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) (QCL, QAG) ITEMS 1Ø, 220-240V, 50Hz 1Ø, 220V, 60Hz POWER SUPPLY 17,500/18,000 21,500/22,000 18,000 21,000 18,000 21,000 COOLING CAPACITY 2,035/2,100 2,190/2,250 2,810/2,890 2,090/2,000 2,440 2,000 2,470...
  • Page 6 1.3.3 FOR LWN2120BHG/BHP/QHG, LWN2123BHG MODELS LWN2120BHG/BHP LWN2120QHG LWN2123BHG ITEMS POWER SUPPLY 1ø, 220V, 60Hz CAPACITY (BTU/H) 24,000 INPUT 2,560 COOLING RUNNING CURRENT (A) 12.3 E.E.R (BTU/W.h) CAPACITY (BTU/h) 24,000 INPUT 2,560 HEATING RUNNING CURRENT (A) 12.3 E.E.R (BTU/W.h) COOLING INDOOR (°C) 27 (DB)* 19 (WB)** OPERATING...

  • Page 7: Features

    1.4 FEATURES • Designed for cooling only. • Side air-intake, side cooled-air discharge. • Powerful and quiet cooling. • Built in adjustable THERMOSTAT. • Slide-in and slide-out chassis for the simple • Washable one-touch filter. installation and service. • Compact size. •...

  • Page 8: Heat Pump Model

    1.5.2 HEAT PUMP MODEL • CAUTION When the air conditioner has been performing its cooling operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation again. • THERMOSTAT •...

  • Page 9: Cooling Only Model With Remote Control And Touch Type

    1.5.3 COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH TYPE DISPLAY REMOTE CONTROL Mode Sleep Auto Restart Cool Fan Speed Temp Auto Swing Power Auto Modo Apagado Ventilacion Frio Encendido Re-inicio Automatico Deshumedad Velocidad Temp Auto Encendido Deflector 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.
  • Page 10 DISPLAY REMOTE CONTROL Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or it there are obstacles between the Remote Control unit and the air conditioner. POWER BUTTON Operation starts, when this button is pressed and stops when you press the button again. OPERATION MODE SELECTION BUTTON Select Cooling, Heating, Fan or Dehumidification(Dry) mode with this button.

  • Page 11: Disassembly Instructions

    2. DISASSEMBLY INSTRUCTIONS — Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the inlet grille upward or downward. 2. Remove the screw which fastens the front grille. 3.

  • Page 12: Air Handling Parts

    2.2 AIR HANDLING PARTS 2.2.1 COVER (AT THE TOP) 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove 11 screws which fasten the brace and covers. 4. Remove the covers and the brace. (See Fig. 4) 5.

  • Page 13: Shroud

    2.2.4 SHROUD 1. Remove the fan. (Refer to section 2.2.3) 2. Remove the 2 screws which fasten the shroud. 3. Remove the shroud. (See Fig. 8) 4. Re-install the component by referring to the removal procedure, above. Figure 8 2.3 ELECTRICAL PARTS 2.3.1 MOTOR 1.

  • Page 14: Capacitor

    2.3.3 CAPACITOR 1. Remove the control box. (Refer to section 2.1.3) 2. Remove the screw and knobs which fasten the display panel. 3. Disconnect the 2 leads from the rocker switch and remove the panel. 4. Remove a screw and unfold the control box. (See Fig.

  • Page 15: Rotary Switch

    2.3.6 ROTARY SWITCH 1. Remove the control box. (Refer to section 2.1.3) 2. Unfold the control box. (Refer to section 2.3.3) 3. Remove 2 screws which fasten the rotary switch. 4. Disconnect all the leads of the rotary switch terminals. 5.

  • Page 16: Refrigeration Cycle

    2.4 REFRIGERATION CYCLE CAUTION Discharge the refrigerant system using Freon Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon . Leave the valve in place after servicing the system. 2.4.1 CONDENSER 1.
  • Page 17 NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to 6. Recharge as follows : discharge the refrigerant system using a Freon 1) Refrigeration cycle systems are charged from the recovery System. High-side. If the total charge cannot be put If there is no valve to attach the recovery system, in the High-side, the balance will be put in the install one (such as a WATCO A-1) before venting...
  • Page 18 Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 18A-Pulling Vacuum Figure 18B-Charging —17—...

  • Page 19: Outside Dimensions

    3. TROUBLESHOOTING GUIDE 3.1 OUTSIDE DIMENSIONS 675 (770) 3.2 PIPING SYSTEM CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR BLOWER EVAPORATOR COIL Following is a brief description of the important components and their functions in the refrigeration system. Refer to Fig. 19 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS...

  • Page 20: Troubleshooting Guide

    3.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two causes. 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 Ineffective Cooling Check of cold air circulation...
  • Page 21 Fails to Start Check of power source. Check of circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Only compressor fails to Only fan fails to start. start. Improper wiring. Drop of power voltage.
  • Page 22 Electrical Parts Troubleshooting Guide : Micom Models Possible Trouble 1 The unit does not operate. • Check the Fuse. • Check the Fuse. Is the Trans output power • Check the wiring diagram. • Check the wiring diagram. AC 220V? •...
  • Page 23 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 N0.7 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 5V? delay? •...
  • Page 24 Possible Trouble 4 FAN does not operate. Is the voltage NO.2 or 3 • Exchange IC01M. of IC01M DC 5V? Is the voltage NO.14 or 15 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Lo. • Check the wiring diagram. Possible Trouble 5 Auto Swing does not operate.
  • Page 25 Possible Trouble 6 Remote controller does not operate. Is the voltage of Battery • Exchange the battery. about over 2.3V? Is the voltage No.10 • Check the PCB pattern. of CN-DISP2 on Main PCB • Check the PCB pattern. Ass'y DC 5V? •...
  • Page 26 Possible Trouble 8 The function of Auto Restart does not operate. • Set the Knob of SW1 Is the Knob of SW1 to left position. set to left position? • Check the SW1. Is the voltage No.1 of • Check the pattern of CN-DISP1 of Main PCB Main &...
  • Page 27 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 28 COMPLAINT CAUSE REMEDY Compressor will not run, Voltage Check voltage. See the limits on the preceding. but fan motor runs. page. If not within limits, call an electrician. Wiring Check the wire connections, if loose, repair or replace the terminal. If wires are off, refer to wiring diagram for identification, and replace.
  • Page 29 REMEDY COMPLAINT CAUSE Capacitor Compressor cycles Test capacitor. on overload. Wiring Check the terminals. If loose, repair or replace. Refrigerating system Check the system for a restriction. Air filter If restricted, clean of replace. Insufficient cooling or Exhaust damper door Close if open.

  • Page 30: Schematic Diagram

    4. SCHEMATIC DIAGRAM 4.1 CIRCUIT DIAGRAM • MODEL : LWN1860BCG(BCL, BCP, BAG)/LWN2260BCG(BCL)/LWM1860BCG(BCL)/LWM1820BCG(BCL) LWM1821BCG(BCL)/LWN2120BCG(BCL)/LWM1830BCG(BCL)/LWN2130BCG(BCL) LWN2131BAG/LWM2130AAG/BAG POWER INPUT BK(BR) WH(BL) (Plain) (Ribbed) SYNC. M. WIRING DIACRAM ROCKER SWITCH • MODEL : LWN2123BCG • MODEL : LWN2120BHG/BHP LWN2123BHG WIRING DIAGRAM WIRING DIAGRAM POWER INPUT...
  • Page 31 • MODEL : LWM1860QCG(QCL)/LWN1860QCG(QCL)/LWN2260QCG(QCL)/LWM1820QCG(QCL) LWM1821QCG(QCL)/LWN2120QCG(QCL)/LWM1830QCG(QCL)/LWN2130QCG(QCL) SYNC CN-TRANS 1 CN-TRANS 2 FUSE 250V T2A WIRING DIAGRAM 3854AR2206Z • MODEL : LWM1860QAG • MODEL : LWN2120QHG POWER INPUT WH(BL) BK(BR) (Ribbed) (Plain) GN/YL(GN) THERMISTOR CN-TH MOTOR OR(BR) OR(BR) GN/YL CAPACITOR (GN) SYNC. MOTOR OR(BR) RY-SYNC...

  • Page 32: Electroing Control Device

    4.2 ELECTROINC CONTROL DEVICE • MODEL: Micom Models —31—...

  • Page 33: Components Location (Of Main P.c.b Asm)

    4.3 COMPONENTS LOCATION (OF MAIN P.C.B ASM) • MODEL: LWM1860QCG/QCL/QAG, LWN1860QCG/QCL, LWN2260QCG/QCL LWM1820QCG/QCL, LWM1821QCG/QCL, LWN2120QCG/QCL LWM1830QCG/QCL, LWN2130QCG/QCL • MODEL: LWN2120BHG/BHP/QHG, LWN2123BHG —32—...

  • Page 34: Components Location (For Display P.c.b Asm)

    4.4 COMPONENTS LOCATION (FOR DISPLAY P.C.B ASM) • MODEL: LWM1860QCG/QCL/QAG, LWM1860QCG/QCL, LWN2260QCG/QCL LWM1820QCG/QCL, LWM1821QCG/QCL, LWN2120QCG/QCL LWM1830QCG/QCL, LWN2130QCG/QCL JW09 6871A20118 JW10 • MODEL: LWN2120BHG/BHP/QHG, LWN2123BHG —33—...

  • Page 35: Exploded View

    5. EXPLODED VIEW • COOLING MODEL 130910 554031 148000 352390 W48602 559010 149980 346811 130410 359012 349480 354210 349600 349001 147582 W48602 249950 269310 W0CZZ 554160 267110 137215 135312 266002 550140 146812 149410 152302 135303 264110 135500 135313 266003 135510 W52106-2 W52106-1 249950...
  • Page 36 • HEATING MODEL 152302 135313 135312 149410 135500 W0CZZ 237200 269310 266003 264110 147581-2 147581-1 268712 268714 130910 237200 135500 238310 263230 264110 148000 559011 149980 W48602 554030 130410 359012 346811 349480 W48602 567502 352390 349600 354210 554160 550140 552111 W52106-1 352111 552116...

  • Page 37: Replacement Parts List

    6. REPLACEMENT PARTS LIST PART NO. LOCATION REMARK DESCRIPTION LWN1860 LWM1860 LWM1860 LWM1830 LWM1860 LWN2123 BCG(BCL) BCG(BCL) BCG(BCL) 130410 BASE ASSEMBLY, SINGLE 3041A30001B 3041A30002F 3041A30002F 3041A30002B 3041A30002F 3041A30001K 130910 CABINET ASSEMBLY 3061AR6056B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6056B 135303 GRILLE, INLET 3530AR1604A(5236AR1329A) 3530AR1604A(5236AR1329A) 3530AR1604A(5236AR1329A) 3530AR1604A 3530AR1604D 135312...
  • Page 38 PART NO. LOCATION REMARK DESCRIPTION LWN2260 LWM1820/1 LWN2120 LWN2130 LWN2131 BCG(BCL) BCG(BCL) BCG(BCL) BCG(BCL) 130410 BASE ASSEMBLY, SINGLE 3041A30002D 3041A30002B 3041A30001K 3041A30001H 3041A30001H 130910 CABINET ASSEMBLY 3061AR6056B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6056B 135303 GRILLE, INLET 3530AR1604A(5236AR1329A) 3530AR1604A(5236AR1329A) 3530AR1604A(5236AR1329A) 3530AR1604A(5236AR1329A) 3530AR1604A 135312 GRILLE ASSEMBLY, FRONT 3531A20005A(3531AR2632D) 3531A20005A(3531AR2632D) 3531A20005A(3531AR2632D) 3531A20005A(3531AR2632D) 3531A20005L 135500...
  • Page 39 PART NO. LOCATION REMARK DESCRIPTION LWN1860 LWN2260 LWM1860 LWM1820/1 LWN2120 LWM1830 LWN2130 QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) QCG(QCL) 135312 FRONT GRILLE ASS'Y 3531A20005A (3531AR2632D) 135313 INLET GRILLE 3530AR1604A (5236AR1329A) 152302 AIR FILTER ASS'Y 5231AR6159A (5230AR1327A) 147581-1 LOUVER HORIZONTAL 4758AR7264A(-) 147581-2 LOUVER HORIZONTAL 4758AR7278A(-) 554160 COMPRESSOR ASS'Y...
  • Page 40 PART NO. LOCATION DESCRIPTION REMARK LWM1860QAG LWM2130AAG LWM2130BAG 130410 BASE ASSEMBLY, SINGLE 3041A30002F 3041A30002B 3041A30002B 130910 CABINET ASSEMBLY, SINGLE 3091AR6057B 3091AR6057B 3091AR6057B 135312 GRILLE ASSEMBLY, FRONT(SINGLE) 3531A20005L 3531A20005L 3531A20005L 135313 GRILLE, INLET 3530AR1604A 3530AR1604A 3530AR1604A 135500 COVER 3550A30048C 3550A30048C 135510 COVER ASSEMBLY, CONTROL(SINGLE) 3551A30015A 3551A30015A...
  • Page 41 PART NO. LOCATION DESCRIPTION REMARK LWN2120BHG LWN2120BHP LWN2120QHG LWN2123BHG 130410 BASE ASSEMBLY,SINGLE 3041A30001K 3041A30001K 3041A30001K 3041A30001K 130910 CABINET ASSEMBLY,SINGLE 3091AR6056B 3091AR6056B 3091AR6056B 3091AR6056B 135312 GRILLE ASSEMBLY,FRONT(SINGLE) 3531A20005X 3531A20005U 3531A20005F 3531A20005V 135313 GRILLE,INLET 3530AR1604A 3530A10005B 3530AR1604A 3530AR1604D 135510 COVER ASSEMBLY,CONTROL(SINGLE) 3551A30015A 3551A30015A 3551A30015A 3551A30015A...
  • Page 42 MEMO —41—...
  • Page 43 MEMO —42—...
  • Page 44 October, 2006 P/No.: 3828A30001N Printed in Korea...

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