LG Electronics LS-Q076BEL, LS-Q096BBG, LS-Q096ACG Electronic Parts Troubleshooting Guide

Page 47

Electronic Parts Troubleshooting Guide

1.Product does not operate at all.

(* Refer to Electronic Control Device drawing and Schematic diagram.)

Turn off Main Power

(After 10 seconds)

Turn on Main Power

Does "beeping" sound is made from the Indoor Unit?

NO

Check the voltage of power(About AC 220V, 60Hz) (About AC 220/240V, 50Hz)

•Main power's voltage

•Voltage applied to the unit

•Connecting method of Indoor/Outdoor connecting cable

•Check PWB Assembly

-Fuse

-Pattern damage

-Varistor(ZNR01J)

Check the connection housing for contacting

•Connector related to CN-TAB1, RY-COMP NO.3

•Connector related to CN-MOTOR

•Connector contacting of Outdoor Fan/Compressor

•Display PWB Assembly Check

YES

Primarily, the operating condition of Micom is OK.

Check each load(Indoor/Outdoor Fan Motor, Com- pressor, Stepping Motor) and contacting condition of related connector

Main PCB Board Operation Check

 

 

 

 

 

 

 

 

 

 

 

 

Items

 

 

 

Content

 

 

Remedy

 

 

 

 

 

 

 

 

 

 

 

 

 

• SMPS Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Indoor unit)

 

 

 

 

 

 

 

 

 

- Input Voltage

 

- About AC220V/240V±10% - Check the power voltage

 

 

• Replace Trans

 

- Output Voltage(ZD02D)

 

- About DC12V

 

 

 

 

 

• IC04D(7805) Output

 

• DC +5V

 

 

• Replace IC04D

 

(Indoor/Outdoor unit)

 

 

 

 

 

 

 

 

 

• IC01A(KIA7036, Reset IC)

 

• Voltage of Micom No. 2,

 

 

• Replace faulty parts

 

X01(8MHz)

 

(DC +4.5V over) and Soldering condition.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Page 46 Page 48
Contents Room Air Conditioner Contents Code Type Code of Model Meaning Details of LG Model Name2002Meaning Details of LG Model Name2003~Indoor Unit FunctionsRemote Control Airflow Direction Control Air Circulation Room, Temperature CheckingPLASMAOptional Setting the Time or Timer Timer Selection Unit Product ReferencesModel Name 1Ø, 220V, 60Hz All Models DimensionsOutdoor Unit 9k Heat Pump Cooling Only Models Refrigeration Cycle DiagramLS-Q096ABL, LS-Q096AEL LS-H096QNA0, LS-H096QNA0 Wiring DiagramOperation Details Cooling Mode OperationHealthy Dehumidification Mode Defrost Control Heating Mode OperationFuzzy Operation for Cooling Fuzzy Operation C/O ModelFuzzy Operation H/P Model Fuzzy Operation for Heating On-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationChaos Swing Mode Off-Timer OperationOff-Timer ↔ On-Timer Operation Sleep Timer OperationForced Operation Jet Cool Mode Operation C/O ModelJet Cool Mode Operation H/P Model Air Cleaner OperationBuzzer Sounding Operation Remote Control Operation ModeProtection of the evaporator pipe from frosting Cooling Model Display FunctionSelf-diagnosis Function Heating ModelPiping length and elevation InstallationSelection of the best location Drill a hole in the wall How to fix installation plateFlaring work For right rear piping Indoor unit installationConnection of piping Indoor Tighten the flare nut with a wrench Wrap the insulation material around the connecting portionTape the drain hose and the connecting cable Insert the connecting cable into the indoor unitTighten the flare nut by hand Connection of the pipes-OutdoorAlign the center of the pipings and sufficiently Connect the cable to the Indoor unit Connecting The Cable Between Indoor Unit and Outdoor UnitConnect the cable to the outdoor unit To check the drainage Checking the drainageForm the piping To remove the front panel from the indoor unitEvaluation of the performance Prepare remote controlPump Down Procedure Settlement of outdoor unitOperation Name and Function-Remote ControlON/OFF Timer Buttons To remove the Grille from the Chassis Disassembly of the parts Indoor unitTo remove the Evaporator When repair, do not damage the Caution labelTo remove the Control Box To remove the Discharge GrilleTo remove the Cross-Flow Fan To remove the Motor CoverWay Valve Liquid Side Way, 3-way ValvePurge the air from the system ProcedureCheck for gas leakage Set the 2-way valve to the closed position Air purging of the charge hoseRe-air purging Gas leakage Balance refrigerant of the 2-way, 3-way valves All amount of refrigerant leaked EvacuationPurge the air from the charge hose After EvacuationConnect the charge hose to the charging cylinder Trouble analysis Cycle Troubleshooting GuideElectronic 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 Way Relay When Heating does not operatePage Electronic Control Device Main P.W.B Assembly DC Part TOP View Bottom View TOP View 6871A20227 TOP View 6871A20194 TOP View6871A30009 TOP View 6871A20391 TOP View 6871A20390 TOP ViewSchematic Diagram LED Type HVB Typeplasma Heat Pump Model LED Type Heat Pump Model HVB Type Exploded View and Replacement Parts List LS-Q076ABL LS-Q076BBG LS-Q076BEL Parts ListIndoorLS-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
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