LG Electronics M8004RY4, L8004RY4, HB8004RA4, HB8004RB4 Do not clean the air conditioner with water

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Safety Precautions

If water enters the product, turn off the the power switch of the main body of appliance. Contact ser- vice center after taking the power-plug out from the socket.

• It will cause electric shock or failure of machine.

Do not clean the air conditioner with water.

Water may enter the unit and degrade the insula- tion. It may cause an electric shock.

CAUTION

Never touch the metal parts of the unit when removing the filter.

• They are sharp and may cause injury.

Ensure that the outer case is not damaged by age or wear.

If the outer case is damaged, it must be repaired or replaced immediately.

Leaving it damaged could result in the air condi- tioner falling out of the window, creating a safety hazard.

Do not block the inlet or outlet.

It may cause failure of appliance or performance deteriorate.

Be cautious not to touch the sharp edges when installing.

• It may cause injury.

Sharp edges

Service Manual 5

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Contents LG Room Air Conditioner Table of Contents Do not disassemble or modify products Safety PrecautionsDo not place the power cord near a heater Use the air conditioner on a single outlet circuit Plug in the power plug properlyDo not modify power cord length Be cautious not to touch the sharp edges when installing Do not clean the air conditioner with waterEnsure that the outer case is not damaged by age or wear Do not block the inlet or outletOutside Dimensions DimensionsSymbols Used in this Manual Items Models Product SpecificationsHBLG8004RA4/B4 CL8000ER HBLG1004RInstallation Check InstallationHow to Secure the Drain Pipe Select the Best LocationWindow Requirements How to InstallOutside Locating Unit in WindowAttach L Bracket Secure the Guide Panels Install the Sash Seal and Sash LockFunction of Controls Precaution The Remote Control unit will notOperation Mechanical Parts DisassemblyFront Grille CabinetAir Guide and Turbo Fan Air Handling PartsFAN ShroudOverload Protector Electrical PartsCompressor CapacitorMotor Power CordCapillary Tube Refrigerating CycleEvaporator Disassembly Pulling Vacuum Electronic Control SchematicDescription QTY Remarks Wiring DiagramComponents Location Main P.C.B AssemblyPiping System Troubleshooting GuideIneffective Cooling Troubleshooting GuideUnit runs but poor 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 Description Remark Replacement Parts ListCL8000ER L1004R M1004RM8004RY4 L8004RY4 NO3828A20472A February