Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics AS-W096URH0/UBH0/UWH0/UMH0 service manual Display ASSEMBLYAS-W096/126U0,1 Series

Models: AS-W096URH1/UBH1/UWH1/UMH1 AS-W126URH1/UBH1/UWH1/UMH1 AS-W096URH0/UBH0/UWH0/UMH0 AS-W126URH0/UBH0/UWH0/UMH0/UCH0

1 84

Download 84 pages 60.42 Kb

Page 55

Schematic Diagram

DISPLAY ASSEMBLY(AS-W096/126U_0,1 Series)

TOP VIEW

CN-DISP

LED MODULE

RECEIVER

PWB: 6870A90178A

PWB ASM: 6871A20463

C01G

BOTTOM VIEW

Data1

Data2

Data3

Data4

Data5

Scan1

Scan2

Scan3

Scan4

Scan5

Vcc

Vo

GND

R06G

LED MODULE

R05G

R04G

R03G

R01G

Service Manual 55

Image 55

LG Electronics AS-W096URH0/UBH0/UWH0/UMH0, AS-W126URH1/UBH1/UWH1/UMH1 service manual Display ASSEMBLYAS-W096/126U0,1 Series

Contents

LG Room Air Conditioner Table of Contents 2002 LG Model NameCode Type Code of Model Meaning Meaning 2003~2005 Installation Safety Precautions There is risk of fire, electric shock, explosion, or injury Thinner Operation Be cautious that water could not enter the product Keep level even when installing the product Operation 9k, 12k Btu Series DimensionsSymbols Used in this Manual Indoor Unit Outdoor Unit AS-W096U0 AS-W126U0 AS-W096U1 AS-W126U1 Product Specifications Outdoor unit InstallationSelect the best Location Indoor unit Oil trap should be installed every 5~7 meters Fixing Installation PlatePiping Length and Elevation Flaring Work Drill a Hole in the Wall Foamed polyethylene or equivalent is recom- mended Connecting the PipingCheck Indoor Wrap the insulation material around the connecting portion For left rear piping Indoor unit installation Bad case For left piping. Follow the instruction below Good case Outdoor unit Outdoor Connecting the Cables Circuit Grade Breaker To check the drainage Checking the DrainageDrain piping Forming the Piping Air purging Air PurgingAir purging with vacuum pump Evacuation Soap water methodFinishing the job Evaluation of the performance Prepare remote controllerTest Running Settlement of outdoor unit Pump Down Pump Down Procedure Functions Stand by control at low temp Power relay controlActive power filter controlPSC Overheatng. ProtectionPower module Cooling Down to 18C Heating Down to 16C Up to 30C Cancel Sleep Mode, Timer on or Timer OFF3, 4, 5, 6 Off Timer High39C Low11C LED display of indoor unit OperationLG Brand/OEM Brand Control method Protection of the evaporator pipe from frosting Model Comp. Operating frequency Cooling mode operation Intake air Temp Setting Temp Healthy Dehumidification mode operation Operating freq. step of comp Heating mode operationTemp. differences Comp. Operating frequency At beginning Fuzzy mode operationOptionalsIntake air temp Setting temp Fan speed Fuzzy operation for cooling Fuzzy operation for dehumidification Fuzzy operation for Heating Chaos swing mode Jet cool mode operationJet heat mode operation Swing mode Sleep timer operation for cooling cycle Sleep timer operationSleep timer operation for heating cycle Trial Operation Indoor temp Operating Mode Setting tempAuto restarting operation Forced operation Protection from DC Peak Current Protection from total current control Portection from overheating of compressor Portection from overheating of power module AS-W096/126U0 Series Defrosting controlAS-W096/126U1 Series Auto ChangeoverOptional Auto CleaningLow Ambient To remove the Grille from the Chassis Disassembly To remove the Discharge Grille To remove the Control BoxTo remove the Evaporator To remove the Cross-Flow Fan To remove the Motor Cover Electric Control Device Schematic DiagramIndoorAS-W096U 0, AS-W126U 0 Series OutdoorAS-W096Series, AS-W126Series Indoor Unit AS-W096/126U0,1 Series Wiring Diagram AS-W126U0 Series Outdoor Unit AS-W096U0 Series Components Location Indoor Main P.W.B Assembly DC Part Display ASSEMBLYAS-W096/126U0,1 Series Outdoor Main P.W.B Assembly AS-W096/126U0 Series Model Adopted Electrion Expansion Valve Troubleshooting GuideRefrigeration Cycle Diagram Model Capillary Tube Pipe Length and the Elevation Oil trap should be installed per 5~7 metersOutdoor unit Indoor unit Way Valve Liquid Side Way, 3-way Valve Purge the air from the system ProcedureAir purging Check for gas leakage Air purging of the charge hose Pumping DownSet the 2-way valve to the closed position Air purging Re-installationMount the valve stem nuts and the service port nut Re-air Purging Gas leakage Balance Refrigerant of the 3-way Valve All amount of refrigerant leaked Evacuation Purge the air from the charge hose Gas ChargingAfter Evacuation Connect the charge hose to the charging cylinder Trouble analysis Cycle Parts Self-diagnosis function Diagnosis Procedure Precaution in Service or Check Electronic Parts Procedure Specification Remedy Product doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are unable to drive When indoor Fan does not operate Trouble 5 When the horizontal louver does not operate Heater does not operate at all Indoor Outdoor Outdoor Unit does not operate at all DC Peak ErrorError Code ➅ Trouble 8-1When compressor does not operate normally Communication error between Indoor and Outdoor Error Code ➄ Trouble 8-2When compressor does not oprate normally CT Error Error Code ➆ Trouble 8-3When compressor does not oprate normally CN-T/Block Problem of missing the connector Indoor Main PCB AssyProblem of missing the connector Outdoor Main PCB Assy Connectors Condition Problem error mode Indoor Unit Exploded View Outdoor Unit Description Replacement Parts List Panel ASSY, Front SUB No A20061Z October