LG Electronics LW1804ER, HB1803R, LWP1830WAL, LWP1820PDL, LWP1820PEL, LWC182PLMM0 Possible Trouble

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Troubleshooting Guide

Possible Trouble 2

The compressor does not operate.

Is settingNO

Temp. set lower than Room • Select the setting Temp. to lower Number. Temp.-0.5°C?

YES

Is the voltage No.10

NO

Is the voltage N0.9 of

NO

Does the Unit delay for

NO

of IC01M 0V?

IC01M DC 12V?

3 minutes?

YES

YES

YES

• Check the RY-COMP.

• Replace IC01M.

• Wait 3 Minutes.

•Check the wiring Diagram.

• Replace MAIN

PCB Ass'y.

Possible Trouble 3

The compressor always operate.

Is the wire connection of	NO			• Connect LEAD Wire to
				• Connect LEAD Wire to
				RY-COMP again.


RY-COMP OK?
RY-COMP OK?

YES

• Check the RY-COMP.

32Room Air Conditioner

Image 32

Contents LG Room Air Conditioner Table of Contents Safety Precautions Be sure not to do Be sure to follow the instructionSharp edges Outside Dimensions DimensionsSymbols Used in this Manual Items Product SpecificationsModels Installation Installation CheckHow to Secure the Drain Pipe Select the Best LocationHow to Install When Using Installation KitsInstallation Kits Contents Window RequirementsPreparation of Chassis Suggested tool RequirementsSCREWDRIVER+, -, RULER, KNIFE, HAMMER, PENCIL, Level Cabinet Installation Window installation of room air conditioner is now completed Function of Controls Display Remote ControlOperation High LOW MEDRemocon Signal Receiver Auto Swing DisplayLWP1820PDL/PEL Display Remote Control Signal Receiver Auto SwingDisassembly Mechanical PartsFront Grille CabinetAir Guide and Turbo Fan FANElectrical Parts ShroudOverload Protector CompressorPower Cord CapacitorEvaporator Refrigerating CycleMotor Capillary Tube Pulling Vacuum Diagram DeviceSegment Model LWP1820PDL/LWP1820PEL LW1800ER/LWP1830WALModel LWC182PLMM0/LWC212PLMM0 LWC182PLMD1Components Location LW1500PR/LWP1830WALLWP1820PDL/LWP1820PEL HBLG1803R LWC183PLMD1Schematic Diagram Troubleshooting Guide Piping System Ineffective Cooling Troubleshooting Guide Unit runs but poor cooling Fails to Start Electrical Parts Troubleshooting Guide Possible Trouble Unit does not operatePossible Trouble Possible Trouble FAN does not operate Possible Trouble Function of Energy Saver does not operatePossible Trouble It displays abnormally on DC PCB Ass’y ElectrIc Parts Check the wiring Diagram Replace AC PCB Assy Possible Trouble Remote controller does not operate Replace IC03G Troubleshooting Guide Complaint Cause RemedyTroubleshooting Guide Exploded View Cooling ModelHeating Model Description Remark LW1800PRZ3Replacement Parts List Description Remark LWP1820PDLLW1804ER LW1800PR LW1800ER Discharge TubeLWP1820PEL LWC183PLMDI Description Remark HBLG183R No A20140E