Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LS-Q096ABM, LS-Q096BBG, LS-Q096ACG Cycle Troubleshooting Guide, Trouble analysis

Models: LS-Q096AEL LS-Q076ABL LS-Q096ADL LS-Q096BBG LS-Q096ADG LS-Q096ABM LS-Q076ABG LS-Q096ABL LS-Q096ACG LS-Q096ABG LS-Q076BBG LS-Q076BEL LS-Q096BEL

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Cycle Troubleshooting Guide

Trouble analysis

1. Check temperature difference between intake and discharge air and operating current.

Temp. Difference

Operating Current

		Temp. difference	:	approx. 0°C
		Current	: less than 80% of
		Current	: less than 80% of
				rated current



		Temp. difference	:	approx. 8°C
		Temp. difference	:	approx. 8°C
		Current	: less than 80% of
		Current	: less than 80% of
				rated current



		Temp. difference	:	less than 8°C
		Temp. difference	:	less than 8°C
		Current	:	over the reated
		Current	:	over the reated
				current


		Temp. difference	:	over 8°C
		Temp. difference	:	over 8°C

•All amount of refrigerant leaked out. Check refrigeration cycle.

•Refrigerant leakege

Clog of refrigeration cycle Defective compressor

•Excessive amount of refrigerant

•Normal

Notice :

Temperature difference between intake and discharge air depends on room air humidity. When the room air humidity is relativery higher, temperature difference is smaller. When the room air humidity is relatively lower tem- perature difference is larger.

2. Check temperature and pressure of refrigeration cycle.

Suction pressure	Temperature
(Compared with	(Compared with	Cause of Trouble	Description
the normal value)	the normal valve)

	High	Defective compressor	Current is low.
	High	Defective 4-way reverse valve
		Defective 4-way reverse valve
Higher
Higher		Excessive amount of	High pressure does not quickly
		Excessive amount of	High pressure does not quickly
	Normal	refrigerant	rise at the beginning of
			operation.

		Insufficient amount of	Current is low.
Lower	Higher	refrigerant (Leakage)
		Clogging	Current is low.

Notice :

1.The suction pressure is usually 4.5~6.0 kg/cm2G(Cooling) at normal condition.

2.The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty.

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LG Electronics LS-Q096ABM, LS-Q096BBG, LS-Q096ACG, LS-Q076ABL, LS-Q096BEL Cycle Troubleshooting Guide, Trouble analysis

Contents

Room Air Conditioner Contents Details of LG Model Name2002 Code Type Code of Model Meaning Details of LG Model Name2003~ Meaning Functions Indoor Unit Remote Control PLASMAOptional Setting the Time or Timer Timer Selection Room, Temperature CheckingAirflow Direction Control Air Circulation Model Name Product ReferencesUnit 1Ø, 220V, 60Hz Dimensions All Models Outdoor Unit 9k Heat Pump Refrigeration Cycle Diagram Cooling Only Models Wiring Diagram LS-Q096ABL, LS-Q096AEL LS-H096QNA0, LS-H096QNA0 Healthy Dehumidification Mode Cooling Mode OperationOperation Details Heating Mode Operation Defrost Control Fuzzy Operation H/P Model Fuzzy Operation C/O ModelFuzzy Operation for Cooling Fuzzy Operation for Dehumidification On-Timer OperationAirflow Speed Selection Fuzzy Operation for Heating Sleep Timer Operation Off-Timer OperationOff-Timer ↔ On-Timer Operation Chaos Swing Mode Air Cleaner Operation Jet Cool Mode Operation C/O ModelJet Cool Mode Operation H/P Model Forced Operation Protection of the evaporator pipe from frosting Remote Control Operation ModeBuzzer Sounding Operation Heating Model Display FunctionSelf-diagnosis Function Cooling Model Selection of the best location InstallationPiping length and elevation How to fix installation plate Drill a hole in the wall Flaring work Connection of piping Indoor Indoor unit installationFor right rear piping Wrap the insulation material around the connecting portion Tighten the flare nut with a wrench Insert the connecting cable into the indoor unit Tape the drain hose and the connecting cable Align the center of the pipings and sufficiently Connection of the pipes-OutdoorTighten the flare nut by hand Connecting The Cable Between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unit Connect the cable to the outdoor unit To remove the front panel from the indoor unit Checking the drainageForm the piping To check the drainage Settlement of outdoor unit Prepare remote controlPump Down Procedure Evaluation of the performance Name and Function-Remote Control Operation ON/OFF Timer Buttons Disassembly of the parts Indoor unit To remove the Grille from the Chassis To remove the Discharge Grille When repair, do not damage the Caution labelTo remove the Control Box To remove the Evaporator To remove the Motor Cover To remove the Cross-Flow Fan Way, 3-way Valve Way Valve Liquid Side Check for gas leakage ProcedurePurge the air from the system Air purging of the charge hose Set the 2-way valve to the closed position Re-air purging Balance refrigerant of the 2-way, 3-way valves Gas leakage Evacuation All amount of refrigerant leaked Connect the charge hose to the charging cylinder After EvacuationPurge the air from the charge hose Cycle Troubleshooting Guide Trouble analysis Electronic Parts Troubleshooting Guide Product is not operate with the remote control Compressor/Outdoor Fan are unable to drive When indoor Fan does not operate When Vertical Louver does not operate When Heating does not operate Way RelayPage Electronic Control Device Main P.W.B Assembly DC Part TOP View Bottom View TOP View 6871A30009 TOP View 6871A20194 TOP View6871A20227 TOP View 6871A20390 TOP View 6871A20391 TOP View Schematic Diagram LED Type HVB Typeplasma Heat Pump Model LED Type Heat Pump Model HVB Type Exploded View and Replacement Parts List Parts ListIndoor LS-Q076ABL LS-Q076BBG LS-Q076BEL LS-Q096ABL LS-Q096BBG CABLE, Flat CABLE, Falt Cover ASSEMBLY,MOTOR LS-Q082AAL LS-C082QMA0 LS-C082QNA0 LS-C096QGL0 LS-C096QLA0 LS-C096QNA0 LS-H096QGL1 W0CZZ Parts ListOutdoor 552202 567502 561410 554160 447910 550140 430410 552203-2 TUBE,CAPILLARY Bend Compressor Base ASSEMBLY,OUTDOOR Tube ASSY,CAPILLARY LS-C082QMA0 LS-C082QNAO LS-C096QGL0 3041AR2415K April