LG Electronics LSC183VMA service manual Product is not operate with the remote controller

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3. The product is not operate with the remote controller.

Turn on Main Power

While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped.

When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller. (When operated in the Sleeping Mode, the wind speed is set to the low speed by force.)

Cause by the remote controller

When the mark( ) is displayed in LCD screen, replace battery.

When the detect switch(double key) inside the remote controller door is fault, it is impossible to operate temperature regulating(/) and wind speed selecting.

Check the connecting circuit between the remote controller MICOM (No. ) - R17(2) - IR LED - Q1 - R16(2.2K).

Caused by other parts except the remote controller

Check the contact of CN-D1/D2 connector.

Check DISP PWB Ass'y

- Voltage between CN-D2 - : DC +5V

Check point

Check the connecting circuit between PIN- R75(1K) - C71(1000PF) - MICOM PIN

Check Receiver Ass'y

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Contents Room Air Conditioner Contents Details of 2003 LG Model Name Code Type Code of Model MeaningFunctions Indoor UnitOperation ON/OFF Operation Mode Selection Room, Temperature CheckingTemperature Setting Setting the Time or Timer Timer SelectionProduct References LSC183VMAIndoor Unit DimensionsIndoor Unit Outdoor Unit 18K Gas sideRefrigeration Cycle Diagram Cooling Only ModelsWiring Diagram 18K Cooling Only ModelsOperation Details Cooling Mode OperationHealthy Dehumidification Mode Heating Mode Operation Defrost ControlFuzzy Operation for Cooling Fuzzy Operation C/O ModelFuzzy Operation H/P Model On-Timer Operation Airflow Speed SelectionFuzzy Operation for Dehumidification Fuzzy Operation for HeatingOff-Timer Operation Off-Timer ↔ On-Timer OperationSleep Timer Operation Chaos Swing ModeJet Cool Mode Operation H/P Model Remote Control Operation ModeForced Operation Test operationCompressor on Indicator Display FunctionSelf-diagnosis Function Heating ModelInstallation Installation of indoor, Outdoor unitSelect the best location Piping length and elevationPreparing work for Installation Open panel frontCover pipe and cover side remove Drain hose junctionHow to fix installation plate Connection of piping Indoor Flaring Work and Connection of PipingFlaring work Indoor unit installation Wrap the insulation material around the connecting portionInstallation Information For right piping Good case Bad caseConnection of the pipes-Outdoor For right piping. Follow the instruction belowConnecting The Cable Between Indoor Unit and Outdoor Unit Connection of the cableConnection method of the connecting cableExample For strand wiringChecking the Drainage and forming the pipings Checking the drainageForm the piping To check the drainageCircuit Breaker Use a circuit breaker or time delay fuse Connect the cable to the indoor unitAir Purging Air purgingAir purging with vacuum pump PreparationEvacuation Finishing the jobPanel Front Assembly Drive three screwsPrepare remote control Pump Down ProcedureTest Running Settlement of outdoor unitName and Function-Remote Control OperationTo remove the Grille from the Chassis To remove the Control BoxTo remove the Motor To remove the EvaporatorBefore removing the Turbo Fan Way, 3-way Valve Way Valve Liquid SideProcedure Air purgingCheck for gas leakage Purge the air from the systemSet the 2-way valve to the closed position Pumping downAir purging of the charge hose Re-air purging Balance refrigerant of the 2-way, 3-way valves Gas leakageEvacuation All amount of refrigerant leakedGas Charging After EvacuationConnect the charge hose to the charging cylinder Purge the air from the charge hoseCycle Troubleshooting Guide Trouble analysisYES Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive When Indoor Fan does not operate Check connecting condition of the CN-MOTOR ConnectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit Indoor Fan Speed Voltage of Connectors according toNo. of pins Electronic Control Device Main PWB ASSYIndoor UnitMain PWB ASSYOutdoor Unit ModelDisplay PWB Assembly Indoor Unit SUB PCB ASMOutdoor Unit MicomExploded View and Replacement Parts List Parts Listindoor Location Description Remarks LSC183VMAOutdoor unit18K W0CZZParts Listoutdoor Location Description QTY Remarks LSC183VMAMemo Memo August