LG Electronics LSN090CE, LSN090HE, LSN120CE, LSN120HE, LSN180CE, LSN240CE, LSN240HE, LSU090CE, LSU090HE, LSU120CE, LSU180CE, LSU180HE, LSU240CE, TRUE Service Manual 79, Parts List (Indoor)

Service Manual 79

Replacement Parts List

Parts List (Indoor)

NOTE) *Please ensure GCSC since these parts may be changed depending upon the buyer's request.

(GCSC WEBSITE http://biz.LGservice.com)

PART No.

LSN180CE LSN240CE LSN180HE LSN240HE

131410 CHASSIS ASSEMBLY 3141A20020G 3141A20020G 3141A20020G 3141A20020G R

135311

GRILLE ASSEMBLY, DISCHARGE(INDOOR)

3531A20252Y 3531A20252Y AEB30240201 AEB30240201 R

135312 GRILLE ASSEMBLY, FRONT(INDOOR) 3531A23005R 3531A23005R 3531A23005R 3531A23005R R

135516 COVER ASSEMBLY, MOTOR 3551A20154A 3551A20154A 3551A20154A 3551A20154A R

146811 MOTOR ASSEMBLY, STEP 4681A20055A 4681A20055A 4681A20055A 4681A20055A R

152302 FILTER(MESH), A/C 5230A20052B 5230A20052B 5230A20052B 5230A20052B R

152312 FILTER ASSEMBLY 5231A20040B 5231A20040B 5231A20040B 5231A20040B R

159901 VANE, HORIZONTAL 5990A20071A 5990A20071A 5990A20071A 5990A20071A R

249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10205B 4995A10205E 4995A10205E 4995A10205E R

263230 THERMISTOR ASSEMBLY 6323A20004N 6323A20004N 6323A20004N 6323A20004N R

267110 REMOTE CONTROLLER ASSEMBLY 6711A20128A 6711A20128A 6711A20128C 6711A20128C R

268712 PWB(PCB) ASSEMBLY, DISPLAY 6871A20681F 6871A20681F 6871A20681D 6871A20681D R

268714 PWB(PCB) ASSEMBLY, MAIN 6871A20771A 6871A20771D 6871A20771D 6871A20771D R

342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A R

346810 MOTOR ASSEMBLY, INDOOR 4681AR2295M 4681AR2295M 4681AR2295M 4681AR2295M R

35211B TUBE ASSEMBLY, TUBING 5211A21378C 5211A21378D 5211A21378D 5211A21378D R

354210 EVAPORATOR ASSEMBLY, FIRST 5421A20220A 5421A20220A 5421A20220A 5421A20220A R

359011 FAN ASSEMBLY, CROSS FLOW 5901A92441E 5901A92441E 5901A92441E 5901A92441E R

668713 PWB(PCB) ASSEMBLY, SUB 6871A20990G 6871A20990E 6871A20990D 6871A20990D R

733010 PLATE ASSEMBLY, INSTALL 3301A20020B 3301A20020B 3301A20020B 3301A20020B R

DESCRIPTION

REMARKS

LOCATION

No.

Contents

Main LG Room Air Conditioner SERVICE MANUAL LG Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions Installation Operation Page Installation Operation Disuse Dimensions Symbols Used in this Manual NOTICE Indoor Unit Page Service Manual 11 Dimensions Outdoor Unit 1. 9k, 12k 12 Room Air Conditioner Dimensions 2. 18k, 24k Introduction Symbols Used In This Manual Features 14 Room Air Conditioner Installation Installation Read carefully, and then follow step by step. Installation Parts Installation Tools Installation Map NOTICE 16 Room Air Conditioner THIS PRODUCT CONTAINS R-410A REFRIGERANT Confirm The Refrigerant Outdoor unit Rooftop Installations Indoor unit Select The Best Location Piping Length And Elevation How To Mount Installation Plate Drill a Hole In The Wall Flaring Work Cut the pipes and the cable. Burrs removal Putting nut on Flaring work Connecting The Piping For left rear piping 22 Room Air Conditioner Wrap the insulation material around the connecting portion. For right rear piping Route the indoor tubing and the drain hose to the required piping hole position. Connecting the pipings to the indoor unit and drain hose to drain pipe. Service Manual 23 Insert the connecting cable into the indoor unit. Tape the drain hose and the connecting cable. Connecting the pipings to the indoor unit and the drain hose to drain pipe. Indoor unit installation 24 Room Air Conditioner Reroute the pipings and the drain hose across the back of the chassis. Page 26 Room Air Conditioner Finally, tighten the flare nut with torque wrench until the wrench clicks. Outdoor unit Connection Of The Drain Hose Connection Of Piping -Outdoor Connection Of The Cable Page Service Manual 29 Checking The Drainage Drain piping The drain hose should point downward for easy drain flow. Avoid these situations. Forming The Piping Air Purging Air purging With Vacuum Pump Preparation Leak test Evacuation Finishing the job Service Manual 33 Charging Important: Test Running 34 Room Air Conditioner Settlement of outdoor unit Prepare remote control Evaluation of the performance Operation DISPLAY Cooling Mode Operation Healthy Dehumidification Mode 36 Room Air Conditioner Operation Heating Mode Operation Defrost Control Page Page Self-diagnosis Function Service Manual 39 Operation Display Function 1. Heating Model 2. Cooling Model Remote Control Operations Operation Mode Service Manual 41 Disassembly Disassembly Indoor Unit Page Service Manual 43 Disassembly 5.To remove the Motor Cover 6.To remove the Cross-Flow Fan Troubleshooting Guide (1) Cooling Only Models (2) Cooling & Heating Models INDOOR UNIT OUTDOOR UNIT Refrigeration Cycle Diagram 2-way, 3-way Valve Pumping Down Balance Refrigerant of the 3-way Valve 48 Room Air Conditioner Troubleshooting Guide Vacuum pump Evacuation Procedure Gas Charging 50 Room Air Conditioner Troubleshooting Guide (According to Indoor & Outdoor Temperature) Additional gas charging Operating Suction Pressure (For R410A) Service Manual 51 Troubleshooting Guide Trouble analysis Cycle Parts 1.Check temperature difference between intake and discharge air and operating current. 52 Room Air Conditioner Troubleshooting Guide Electronic Parts (9k model) Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.) Service Manual 53 Troubleshooting Guide Electronic Parts (18k model) Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.) The product is not operate with the remote controller. Compressor/Outdoor Fan are unable to drive.(9k Model) Compressor/Outdoor Fan are unable to drive.(18k Model) When indoor Fan does not operate. When Vertical Louver does not operate. When a comunication error occurs. 60 Room Air Conditioner Troubleshooting Guide The phenomena in case of connecting error INDOOR UNIT Service Manual 61 OUTDOOR UNIT Page Page Page Page Page Page Page Page Page Page 72 Room Air Conditioner Product Specifications Product Specifications Cooling Only * Design and specifications subject to change without prior notice for product improvement. Service Manual 73 Product Specifications Cooling & Heating Exploded View Indoor Unit Outdoor Unit: 9k, 12k Btu/h Seriess Outdoor Unit: 18k(C/O) Seriess Outdoor Unit: 18k(H/P), 24k Seriess 78 Room Air Conditioner Replacement Parts List Parts List (Indoor) Service Manual 79 Parts List (Indoor)