Lg L1804R Manuale Utente Pagina 1

LG RoomAir ConditionerSERVICE MANUALLGMODELS: LWHD1500ER,LWHD1800R,L1804RCAUTIONwebsite http://www.lgappliances.com• BEFORE SERVICING THE UNIT, READ T

10 Room Air ConditionerInstallation5. Pull each Frame curtain fully to each window sashtrack, and pull the bottom window sash down behindthe Top retai

Service Manual 11Operation• Designed for COOLING ONLY.• Powerful and quiet cooling.• Slide-in and slide-out chassis for the simple instal-lation and

12 Room Air ConditionerDisassemblyDisassemblyMechanical Parts— Before the following disassembly, CONTROL BOX set to OFF and disconnect the power cord.

Service Manual 13DisassemblyFigure 16Figure 17Figure 18Figure 194. Air Guide and Turbo Fan1. Remove the front grille. (Refer to section 1)2. Remove t

14 Room Air Conditioner6. Shroud1. Remove the fan. (Refer to section 5)2. Remove the shroud. (See Figure 20)3. Re-install the components by referring

Service Manual 15Disassembly9. Capacitor1. Remove the control box. (Refer to section 3)2. Open the top cover from the control box.(See Figure 23)3. P

16 Room Air ConditionerDisassembly11. Motor1. Remove the cabinet. (Refer to section 2)2. Remove the turbo fan. (Refer to section 4)3. Remove the fan.

Service Manual 17Disassembly— Replacement of the refrigeration cycle.1. When replacing the refrigeration cycle, be sure toDischarge the refrigerant s

18 Room Air ConditionerDisassemblyEquipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capableof making

Service Manual 19Schematic Diagram4WAYMAIN POWERCAPACITORMOTORFAN35V24D02D~D05D1N4004SVC271D-14ACN-PWRFUSE125V/T2AZNR01J0.1/275VC01JCN-MOTOR120 1/2WR

2 Room Air ConditionerAir Conditioner Service ManualTABLE OF CONTENTSSafety Precautions...

20 Room Air ConditionerSchematic DiagramWiring Diagram15768423MOTORCOMP.CAPACITORDC PCBASSEMBLYTHERMISTORAIR FILTERASSEMBLYAC PCBASSEMBLYWIRING DIAGRA

Service Manual 21Schematic DiagramComponents Location1. MAIN P.C.B ASSEMBLYR01TCN-HVBC03TQ03TQ04TC04DC05DC01DC02DD02DD03DD04DD05DIC01DHEAT SINKQIC02D

22 Room Air ConditionerTroubleshooting Guide Troubleshooting GuidePiping SystemFigure 29 is a brief description of the important components and their

Service Manual 23Troubleshooting Guide Troubleshooting GuideIn general, possible trouble is classified in two kinds.The one is called Starting Failur

24 Room Air ConditionerTroubleshooting Guide Fails to StartCheck circuit breakerand fuse.Gas leakage of feeler bulbof thermostatCheck of control switc

Service Manual 25Troubleshooting Guide • Check the Fuse.• Check the wiring diagram.Is the Trans input power AC 115V?(208/230V for LWL1230WAL)Is the T

26 Room Air ConditionerTroubleshooting Guide Possible Trouble 2 The compressor does not operate.Possible Trouble 3 The compressor always operate.Is se

Service Manual 27Troubleshooting Guide Possible Trouble 4 FAN does not operate.Possible Trouble 5The function of Energy Saver does not operate.• Rep

28 Room Air ConditionerTroubleshooting Guide Possible Trouble 6 Remote controller does not operate.Possible Trouble 7 It displays abnormally on DC PCB

Service Manual 29Troubleshooting Guide • Check the Fuse.• Check the wiring diagram.Is the Trans input power AC 115V?(208/230V for LWL1230WAL)Is the T

Service Manual 3Safety Precautions Safety PrecautionsTo prevent injury to the user or other people and property damage, the following instructions m

30 Room Air ConditionerTroubleshooting Guide Possible Trouble 2 The compressor does not operate.Possible Trouble 3 The compressor always operate.Is de

Service Manual 31Troubleshooting Guide Possible Trouble 4 FAN does not operate.Possible Trouble 5Remote controller does not operate.• Replace IC01M.

32 Room Air ConditionerTroubleshooting Guide Possible Trouble 6 It displays abnormally on DC PCB Ass’y.NONONONOYESYESYESAre the IC01G and IC02Ggood?Is

Service Manual 33Troubleshooting Guide COMPLAINT CAUSE REMEDYCheck voltage at outlet. Correct if none.Check voltage to Control Box. If none, check po

34 Room Air ConditionerTroubleshooting Guide COMPLAINT CAUSE REMEDYCheck the TEMP control. If not at the lowest number,set TEMP control to this settin

Service Manual 35Exploded View Exploded View DEFROSTHEATCOOLINDOORDESIREDENERGYSAVERAIRPURYFIERAUTORESTARTFANFANDRY130910731273149980346811359012W486

36 R oom Air C onditionerR eplacement Parts ListR eplacement Parts L is t13041 0 BAS E ASS E M BLY, W E LD [S IN G LE ] 3041A2 0023T 3041A2 0

37R oom Air C onditionerR eplacement Parts ListR eplacement Parts L is tBAS E AS S E M BLY , W E LD [S IN G LE ] RC ABIN E T AS S E M BLY , SIN G LE30

38 Room Air ConditionerMemo

P/No.: 3828A29003AJanuary, 2006Printed in China

4 Room Air ConditionerSafety Precautions Do not modify or extend the power cord.• There is risk or fire or electric shock.Do not install, remove, or

Service Manual 5DimensionsDimensionsDWH'FTIMER POWERMODETEMPFANSPEEDF1 LOWF2 MEDF3 HIGH Dry TimerFanEnergySaverCoolW mm(inch) 660(25 31/32)H mm(

6 Room Air ConditionerSpecficationsProduct Specifications* DB : dry bulb** WB : wet bulbNote: Please refer to Label Quality on the product Since this

Service Manual 7InstallationInstallationSelect the Best LocationInstallation CheckHow to Secure the Drain Pipe1. To avoid vibration and noise, make s

8 Room Air ConditionerInstallationHow to InstallWhen Using Installation Kits1. Window RequirementsThis unit is designed for installation in standard d

Service Manual 9InstallationCabinet Installation1. Open the window. Mark a line on the center of the windowstool between the side window stop molding