LG Electronics HB1004R, L8004RY4, HB8004RA4, HB8004RB4, M1004R Troubleshooting Guide, Piping System

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Troubleshooting Guide

Troubleshooting Guide

Piping System

CONDENSER COIL

 

FAN

CAPILLARY TUBE

 

MOTOR

 

 

COMPRESSOR

 

TURBO FAN

EVAPORATOR COIL

 

Figure 26 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

 

 

 

ROOM AIR CONITIONER

 

 

 

 

 

CYCLE OF REFRIGERATION

 

 

 

EVAPORATOR COILS

 

 

 

CONDENSER COILS

 

 

 

 

SUCTION LINE

VAPOR INLET

 

 

COMPLETE LIQUID

 

HOT

 

 

COOL LOW PRESSURE VAPOR

 

 

BOIL OFF POINT

 

DISCHARGED

 

 

 

 

 

 

COOLED

 

 

 

AIR

 

AIR

ROOM AIR HEAT LOAD

 

 

 

 

 

 

 

 

 

 

 

OUTSIDE COOLING

 

 

 

 

 

 

AIR FOR REFRIGERANT

 

 

 

 

MOTOR

PASS THROUGH

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

 

 

 

 

 

 

OIL

 

 

 

 

LIQUID

 

 

 

LIQUID OUTLET

 

 

PRESSURE

 

 

 

 

 

DROP

(LIQUID REFRIGERANT)

 

 

 

 

 

 

HIGH PRESSURE VAPOR

 

 

 

 

 

 

 

 

CAPILLARY TUBE

 

LIQUID REFRIGERANT

 

 

 

 

Figure 26

 

LOW PRESSURE VAPOR

 

 

 

 

 

 

 

 

 

 

 

 

Service Manual

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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 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 wearOutside Dimensions DimensionsSymbols Used in this Manual HBLG1004R Product SpecificationsItems Models HBLG8004RA4/B4 CL8000ERSelect the Best Location InstallationInstallation Check How to Secure the Drain PipeWindow 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 Cabinet DisassemblyMechanical Parts Front GrilleShroud Air Handling PartsAir Guide and Turbo Fan FANCapacitor Electrical PartsOverload Protector CompressorMotor 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 M1004R Replacement Parts ListDescription Remark CL8000ER L1004RM8004RY4 L8004RY4 NO3828A20472A February