LG Electronics HB8004RB4, L8004RY4, HB8004RA4, M1004R, M8004RY4, HB1004R Compressor does not operate

Page 27

Troubleshooting Guide

Possible Trouble 2

The compressor does not operate.

Is setting

NO

• Select the setting Temp. to lower Number.

Temp. set lower than Room

Temp.-0.5°C?

YES

Is the voltage No.10

NO

Is the voltage N0.9 of

NO

Does the Unit delay

NO

of IC01M 0V?

IC01M DC 12V?

for 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
Is the wire connection of
RY-COMP OK?

YES

• Check the RY-COMP.

•Connect LEAD Wire to RY-COMP again.

Service Manual 27

Image 27

Contents LG Room Air Conditioner Table of Contents Safety Precautions Do not place the power cord near a heaterDo not disassemble or modify products Plug in the power plug properly Do not modify power cord lengthUse the air conditioner on a single outlet circuit Do not block the inlet or outlet Do not clean the air conditioner with waterBe cautious not to touch the sharp edges when installing Ensure that the outer case is not damaged by age or wearDimensions Symbols Used in this ManualOutside Dimensions HBLG1004R Product SpecificationsItems Models HBLG8004RA4/B4 CL8000ERSelect the Best Location InstallationInstallation Check How to Secure the Drain PipeWindow Requirements How to InstallLocating Unit in Window Attach L BracketOutside Secure the Guide Panels Install the Sash Seal and Sash LockPrecaution The Remote Control unit will not OperationFunction of Controls Cabinet DisassemblyMechanical Parts Front GrilleShroud Air Handling PartsAir Guide and Turbo Fan FANCapacitor Electrical PartsOverload Protector CompressorMotor Power CordRefrigerating Cycle EvaporatorCapillary Tube Disassembly Pulling Vacuum Electronic Control SchematicDescription QTY Remarks Wiring DiagramComponents Location Main P.C.B AssemblyPiping System Troubleshooting GuideTroubleshooting Guide Unit runs but poor coolingIneffective Cooling Fails to Start Possible Trouble Electrical Parts Troubleshooting GuideCompressor does not operate Possible Trouble Function of Energy Saver does not operate Possible Trouble FAN does not operatePossible Trouble Remote controller does not operate Is the reset circuit OK? Select the desired Temp. to lower Number CN-AC/DC OK? YES Connect connector Complaint Cause Remedy Troubleshooting Guide Exploded View Replacement Parts List M1004R Replacement Parts ListDescription Remark CL8000ER L1004RM8004RY4 L8004RY4 NO3828A20472A February