LG AS-W096EBH0 Svc Manual Download Page 1

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Universal Air Conditioner

SVC MANUAL(Exploded View)

MODEL : AS-W096ERH0

AS-W096EBH0
AS-W096EVH0
AS-W126ERH0
AS-W126EBH0
AS-W126EVH0

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

Summary of Contents for AS-W096EBH0

Page 1: ... View MODEL AS W096ERH0 AS W096EBH0 AS W096EVH0 AS W126ERH0 AS W126EBH0 AS W126EVH0 CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Page 2: ...del Name 3 Safety Precautions 5 Dimensions 10 Installation 12 Flaring work and connection of piping 14 Connecting the cable between indoor unit and outdoor unit 19 Checking the drainage and forming the pipings 21 Air purging 22 Test running 24 Functions 25 Operation 28 Disassembly 41 Troubleshooting Guide 44 Schematic Diagram 64 Product Specifications 69 Exploded View 70 ...

Page 3: ...0V 50Hz D 440 460 60Hz 3Phase 6 220 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 0 9 LG Model De ARTCOOL COLOR velopment Serial No Basic A Basic 4Way B Plasma Filter C Plasma Filter 4 Way D Tele LCD E Tele LCD Nano plasma 4Way F Nano Plasma ...

Page 4: ... 50 60Hz F 200V CHASSIS Look D K L G M N D P Division Panel Type Deluxe Fighting Look LG1 LG2 SEMI PANEL OEM1 OEM2 Panel Type Deluxe LG3 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 0 9 LG Model De ARTCOOL COLOR velopment Serial No R Mirror B Blue V Silver S4 S5 S6 SQ SR ST SE Basic A...

Page 5: ...mbols used in this manual are as shown below This symbol indicates the possibility of death or serious injury This symbol indicates the possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Do not use damaged power cords plugs or a loose socket Always use the power plug and socket with the ground terminal There is risk of fire of electric shock Ther...

Page 6: ...t failure and personal injury Sharp edges could cause injury Be especially care ful of the case edges and the fins on the condenser and evaporator There is risk of fire electric shock explosion or injury Be cautious when unpacking and installing the product For installation always contact the dealer or an Authorized service center For re installation of the installed product always contact a deale...

Page 7: ...k There is risk of fire or electrical shock Grasp the plug to remove the cord from the outlet Do not touch it with wet hands Do not place a heater or other appliances near the power cable There is risk of fire or electrical shock There is risk of fire and electric shock Do not allow water to run into electrical parts Do not store or use flammable gas or com bustibles near the air conditioner There...

Page 8: ...vels may cause failure of product A bad connection may cause water leakage Keep level even when installing the product Use two or more people to lift and transport the air conditioner To avoid vibration or water leakage Avoid personal injury Installation 90 Unplug the unit if strange sounds odors or smoke comes from it Be cautious that water could not enter the product There is risk of electric sh...

Page 9: ...They are very sharp There is risk of fire electric shock or damage to the plastic parts of the product There is risk of personal injury Do not step on or put anyting on the product outdoor units Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There is risk of personal injury and failure of product There are sharp and moving parts that co...

Page 10: ...imensions Dimensions Installation plate D H W W mm 915 H mm 282 D mm 165 Model Dimension 9k 12k Btu Series Indoor Unit This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual ...

Page 11: ...way valve MODEL DIM unit W mm 770 H mm 540 D mm 245 L1 mm 285 L2 mm 65 L3 mm 518 L4 mm 10 L5 mm 100 Dimensions Outdoor Unit 9k 12k Btu Series 11 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 12: ...se from the air conditioner do not disturb neighbors Rooftop Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding rooftop mounting More than 20cm More than 10cm More than 1 5m More than 10cm Capacity is based on standard length and maxi mum allowan...

Page 13: ...e drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Open the Front Grille Pass Telephone Control Cord Wire through the hole which the power cord goes through Connect Telephone Control Cord Wire to the phone jack of telephone PCB of Control Box Fix Telephone Control Cord Wire inside Control box so as not to disconnect Close the Front Gril...

Page 14: ... original position Optional Carry out flaring work using flaring tool as shown below Burr removal Completely remove all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe in a downward direc tion as you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having c...

Page 15: ...ose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Indoor unit installation Hook the indoor unit onto the upper portion of the installa tion plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure that the hooks are properly seated...

Page 16: ... required piping hole position Insert the piping drain hose and the connect ing cable into the piping hole Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy connection later Indoor unit installation Hang the indoor unit from the hooks at the top of the instal lation plate Insert the spacer etc between the indoor un...

Page 17: ...s engage into their slots clicking sound Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Reroute the pipings and the drain hose across the back of the chassis Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and pu...

Page 18: ... until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Bad case Following bending type from right to left could cause problem of pipe damage Connection of the pipes Outdoor mm inch kgf m Ø6 35 1 4 1 8 2 5 Ø9 52 3 8 3 4 4 2 Ø12 7 1 2 5 5 6 6 Ø15 88 5 8 6 3 8 2 Ø19 05 3 4 9 9 12 1 Outside diameter Torque Outdoor u...

Page 19: ...l front of the indoor unit Connect the wires firmly so that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram If a power plug is not used provide a circuit breaker between power source and the unit as shown by The power cord connected to the A unit should be selected according to the following specifications Type B approved by HAR or SAA T...

Page 20: ...of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent ...

Page 21: ...nd connecting cable from down to up Secure the tapped piping along the exterior wall using sad dle or equivalent To check the drainage Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the piping and con...

Page 22: ...ation Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been complet ed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage Leak test Connect the manifo...

Page 23: ...net on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 1 Remove the caps from the 2 way and 3 way valves 2 Remove the...

Page 24: ...eat 4 times Evaluation of the performance Operate unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake temperature and the discharge is more than 8 C 46 F Cooling or Heating 4 For reference the gas side pressure of optimum condition...

Page 25: ...ts up in operation Lights up in Sleep Mode Lights up in Timer Mode Lights up in Preheat Mode for Heating Model Lights up in Plasma Air Clean Mode Lights up in during Energy Saving Cooling Mode Operation Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting the Current Control Time Delay Safety Control Indoor Fan Speed Control Operation ind...

Page 26: ...ing low Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed The louver can be set at the desired position or swing up and down automatically Sleep Mode Auto Control Natural Air Control by CHAOS Logic Airflow Direction Control The function will be operated while in ...

Page 27: ...t is only operated in the heating operation mode except defrosting operation High speed Although fan motor speed is middle it will change high speed in case of below AC193V over 45 C of outdoor temp and over fc fh of comp Freq Middle speed Nomal mode Low speed Although fan motor speed is middle it will change Low speed in case of over AC 270V over 21 C Heating Mode of outdoor temp below 24 C Cooli...

Page 28: ... ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Defrost Indicator OFF except when hot start during heating mode operation or while in defrost control If the indoor pipe temperaure is below 0 C in 7 min after the compres...

Page 29: ... over 2 5 C Step 7 2 0 2 49 C Step 6 1 5 1 99 C Step 5 1 0 1 49 C Step 4 0 5 0 99 C Step 3 0 0 0 49 C Step 2 0 5 0 C Step 1 The operating freq step of comp The targeting operating freq of comp each model Model AS W096ERH0 EBH0 EVH0 25 35 40 52 66 74 82 AS W126ERH0 EBH0 EVH0 25 35 40 52 66 74 82 Comp Operating frequency Step 1 Step 2 Step 3 Step 4 Step 5 Fc Step 6 Step 7 Healthy Dehumidification mo...

Page 30: ...5 2 99 C 2 0 2 49 C 2 0 C Comp Operating frequency Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 The operating freq step of comp The targeting operating freq of comp each model Heating mode operation Model AS W096ERH0 EBH0 EVH0 35 40 48 56 80 90 94 AS W126ERH0 EBH0 EVH0 35 40 48 56 80 90 94 Comp Operating frequency Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 While in heating mode or Fuzzy ...

Page 31: ...ring operation of product Move the vane up or down in interval of 16 C from the initial vane position Vane speed is different every sector but speed and movement of the vane depends on following graph Jet heat mode operation New Chaos swing mode 6ms 12ms 6ms 12ms 6ms Vane operation on short change of flow Vane operation on middle change of flow Basic Patten 1 Up Down vane degree 16 deg Initial pos...

Page 32: ...60 min later since the start of the sleep timer the setting temperature decrease by 1 C After another 60min elapse it decreases by 1 C again Setting temp C 1 0 C up 1 0 C up Cooling ON temp Setting temp 0 5 C Cooling OFF temp Setting temp 0 5 C 0 5 1 Sleep time hr Setting temp C Heating ON temp Setting temp 2 C Heating OFF temp Setting temp 4 C 1 2 Sleep time hr 1 0 C down 1 0 C down When the slee...

Page 33: ...rate the appliance by force in case that the remote control is lost the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions The operation condition is set according to the outdoor temp and intake air temperature as follows The unit select before operating mode in 3 hours Press the Tact Switch for compulsory operation of the mai...

Page 34: ...mpressor cut off cf I1 is set the lowest level between intial value and in case dectection of dc paeak current Control table DC Peak Current Error by a fault signal of IPM If the operating current of IPM reaches 35A 3A the compressor stop instantly If DC PEAK occurs 5 times within 1 hour the appliance turns off and display ERROR CODE 6 DC Peak Current Error by the compressor lock If the DC LINK vo...

Page 35: ...0 C or below 30 C the compressor stop instantly It will be limited the compressor operating frequency according to the compressor dome TH Refer to below Fig Temperature range by COMP SPEC varies by 10 C Portection from overheating of power module Portection from overheating of compressor T off C T2 C Heat Sink Temp T1 C T on C COMP Freq Free OFF Free Fc 1 Fc 1 Fc 2 Fc 2 T T off T on T1 T on T T2 T...

Page 36: ...rol Setting Freq Operating Freq Of Comp Comp off Inapplicable 4 Way Indoor FAN Indoor FAN Pre Heat LED 5sec 5sec Minimum Time Of Heating Main Deice time 30sec 10sec 1min ON OFF Hi Speed ON Setting Speed Hot Start OFF Super low speed low speed ON OFF OFF Deice STEP 0 1 2 3 4 5 6 EEV Open step The Degree of Superheat Control Starting Step off Min Option _ 12 Step 3 Option _ 15 300 Option _ 14 off St...

Page 37: ...Fan 60 Sec 120 Sec Fan The air conditioner changes the operation mode automatically to keep indoor tempera ture When room temperature vary over 2 C with respect to setting temperature air condition er keeps the room temperature in 2 C with respect to setting temperature by auto change mode If outdoor temperature drops below certain temperature liquid back is prevented by reducing fan speed It can ...

Page 38: ...essor is more than 15 C where the compressor turns off Release preheat operation if meeting one or more of conditions where outdoor temperature is more than 5 C where diacharge temperature of the compressor is more than 25 C where the compressor turns on Preheat 1 The buzzer sounds 3 times if pressing the tact switch for 10seconds If turning off the tack switch in this case the operation LED flick...

Page 39: ... lock of the indoor fan immediately turn off the compressor and stop the indoor appliances Error is displayed through the indoor error display LED in this time Periodically flickers 8 times The indoor unit detects the fan lock error status even if re operating the unit during 2min delay of Comp Off in spite of release of the fan lock Normal operation is done if re operating the unit after Comp Off...

Page 40: ... to cancel the timer operation 10 SLEEP MODE AUTO BUTTON Used to set sleep mode auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating ENERGY SAVING COOLING MODE BUTTON OPTIONAL For inverter type models 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 PLASMA BUTTON OPTIONAL Used to start or stop the plasma purification function 1...

Page 41: ...o open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the other end Earth Conductor 41 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes L...

Page 42: ...move securing screws Pull the control box out from the chassis carefully 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA Screw When repair do not damage the Caution label ...

Page 43: ...b is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self ...

Page 44: ...CHANGE EVAPORATOR HEAT EXCHANGE CONDENSER EER COMPRESSOR ACCUMU LATOR GAS SIDE 3 WAY VALVE LIQUID SIDE 3 WAY VALVE COOLING HEATING REVERSING VALVE INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR ACCUMU LATOR GAS SIDE 3 WAY VALVE LIQUID SIDE 3 WAY VALVE COOLING HEATING REVERSING VALVE 1 Cooling Only Models Refrigeration Cycle Diagram 2 Cooling Heating Models ...

Page 45: ...with cap Closed Open Open clockwise counter clockwise connected manifold gauge Open Open Open with charging cylinder Open Open Open with charging cylinder Open Open Open Open Works Shipping Air purging Installation Operation Pumping down Transfering Evacuation Servicing Gas charging Servicing Pressure check Servicing Gas releasing Servicing 1 2 3 4 5 6 Valve cap Open position Closed position Pin S...

Page 46: ...move the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 6 Set the 3 way valve to the back seat 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time espec...

Page 47: ...e push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi ...

Page 48: ...3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm2 g 6 Disconnect the charge set and the gas cylin der and set the Liquid side and Gas side valves to th...

Page 49: ...e service port 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indi cates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G discharge the refrig erant until the gauge indicates 0 5 to 1 kg cm2 G if this is the case it will not be neces sary to apply a evacuatin Discharge the...

Page 50: ...hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo O...

Page 51: ... of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be dis charged If the system ...

Page 52: ...ween 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 1 The suction pressure is usually 8 5 9 5kg cm2 G Cooling at normal condition 2 The temperature can be measured by attachi...

Page 53: ...play Indoor Outdoor Indoor Operation O O O O O O O O O O O O O O O O Indoor Temp sensor error Sensor open or short Heat Sink sensor error Sensor open or short Heat Sink temp is over 95 Communication error Outdoor Temp sensor error Sensor open or short DC Peak error Over current error CT2 ON ON ON OFF SHUT DOWN SHUT DOWN 9times 9times 3 sec 10times 10times 3 sec 3 sec 3 sec 3 sec 3 sec 2times 10 ON...

Page 54: ...of operation indicator refer to the self diagnosis function Check the self diagnosis table Check the condition of connectors The condition of P C B pattern Check the condition of connectors The condition of P C B pattern The electronic components Indoor Outdoor 1 Error indicator of air conditioner 1 Indoor Operating LED Outdoor LED01M Red on the outdoor PCB 2 2 more errors occur at same time Air c...

Page 55: ...SP1 CN DISP2 of indoor PCB Check the voltage of power AC220V AC240V 50Hz The voltage of main power The voltage applied to the unit The connecting method of Indoor Outdoor connecting cable each color The P C B Ass y Fuse Noise Filter Power Module Bridge Diode etc Trouble 1 NO YES The operation check of the Indoor P C B Ass y Procedure 1 The input voltage of power mod ule 2 The output voltage of pow...

Page 56: ...d 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 as force Caused by the remote controller Caused by other parts except the remote controller When the mark is displayed in LCD screen replace battery Check the contact of CN DISP 1 2 connector Check DISP P C B Ass y Voltage between CN DISP1 DC 5V Check ...

Page 57: ...indoor pcb is right No Check Indoor TH Measure resistance of TH air about 10k Ω at 25 C pipe about 5k Ω at 25 C YES No Check soldering state of R01H R04H C01H C02H Check flow 2 Outdoor TH sensor is short or open Outdoor TH sensor is not connected to the outdoorpcb assembly Damage or defect on the sensing circuit of outdoorpcb assembly R03H R06H C02H C03H Outdoor TH is short or open Description Err...

Page 58: ...nsing circuit of outdoorpcb assembly R01H R02H C01H Heat sink Temp is over 95 C Heat sink TH is open or short Heat sink TH in INV IC is Right Sensing circuit of outdoor pcb is right YES No Check heat sink TH Measure resistance of TH about 10k Ω at 25 C Heat sink TH is connected to outdoor PCB assembly YES No Connect to CN TH2 in outdoor PCB assembly No Check soldering state of R01H R02H C01H Check...

Page 59: ...ing connection Is right Is the voltage of T Block in outdoor about AC 220 240V YES No Indoor Outdoor 1 BR 1 BR 2 BL 2 BL 3 GN YL 3 GN YL 4 RD 4 RD No Check power connector Is not connected to the T Block in indoor unit Check flow Is the voltage of GND DC5V in Outdoor pcb about DC 5V YES No Check FUSE NF01 02J PTC Power Module BD 01S in Outdoor pcb assembly Communication circuit of indoor outdoor p...

Page 60: ...D V BL W YL Check flow Refrigerant pressure is right YES No Check refrigerant pressure and adjust Is the compressor right YES No Check resistance Between U V V W U W port Short Open circuit Comp motor coil error normal 1 2 Ω Between U V W and Body normal over10M Ω Inverter components in outdoor pcb assembly are right YES No 9 K 12K Model Check Short of SPM3 pins GND P U V W pin Direction of D01Z D...

Page 61: ...bout AC 220 240V Does indoor outdoor fan work normally YES No Check power source No Check indoor outdoor fan and adjust Check flow Refrigerant pressure is right YES No Check refrigerant pressure and adjust Current sensing circuit is right YES No Check current sensing circuit check CT is damaged in outdoor pcb output wire is disconnected to pin or not BD01N is inserted in right position refer marki...

Page 62: ...n driving circuit is right YES No Check DC Fan Driving circuit Soldering state Direction R01F R09F C01F C03F IC01F IC03F Q01F Q02F ZD01F 9 Outdoor fan is locked by an obstacle ex branch of tree bar etc Fan connector is not connected to outdoor pcb assembly Defective in DC fan driving circuit Outdoor fan is locked BLDC fan model only Outdoor fan is rotating 1 Outdoor fan is rotating 2 YES No Check ...

Page 63: ...assembly Damage or defect on the sensing circuit of outdoor pcb assembly D Pipe TH is short or open D_PIPE TH is connected to Outdoor pcb assembly D_PIPE TH is right YES No Connect to CN D_PIPE in outdoor pcb assembly Sensing circuit of outdoor pcb is right No Check D_PIPE TH Measure resistance of TH about 200kΩ at 25 C YES No Check soldering state of R07H R08H C04H Check flow Description Cause of...

Page 64: ... 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Wiring Diagram Schematic Diagram Indoor Unit Models AS W096ERH0 BH0 VH0 AS W126ERH0 BH0 VH0 Schematic Diagram ...

Page 65: ... 65 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Outdoor Unit Models AS W096ERH0 BH0 VH0 AS W126ERH0 BH0 VH0 ...

Page 66: ...7 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Components Location TOP VIEW BOTTOM VIEW Indoor Unit Models AS W096ERH0 BH0 VH0 AS W126ERH0 BH0 VH0 ...

Page 67: ... K ZNR01J R09K 1 CN_S VALVE1 R02K R04K IC01K R01K IC02K IC01M R10K J23 D02K ZD02K J25 J27 J26 J24 R01M ZD01K 16 LED01M C04K R03B POWER MODULE R04C R06S R23P R22P R24P R13Z CN D A EEPROM C02Y R03N C02B C02N C10S C01C C01L R01L C18Z C01F R01F R04Y R02B C09B 80 R02L C05H IC01D C03D C02D R07H R03H R01H R05H C04D C01H C05D C04P C03P C02P R21P R19P R20P R06P R03P C01P R18P R07P R04P R16P C05P R17Z R02P ...

Page 68: ...EMBLY SUB LCD MODULE 6871A00087B 6306A90009A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CN_LIMIT2 CN_RECEIVER_1 CN_FORCE CN_STEPPING MOTOR F G ASSM 6871A00087 CN_TH1_1 CN_SUB CN_TH1_2 PWB 6870A90720A COMPONENT SIDE 6871A00088A 1 1 1 1 1 1 1 1 1 ASSM 6871A00088 PWB 6870A90719A CN_RECEIVER RECEIVER C01R R01L COMPONENT SIDE 1 6871A20259D 9 1 White wire ...

Page 69: ...dB A 3 Pressure 1m Low dB A 3 Outdoor Max dB A 3 Refrigerant R410A Charge Power Cord AWG P mm2 Connecting Cable AWG P mm2 Connecting Tube Liquid Side mm in Ø Socket Flare Gas Side mm in Length std m in Drain Hose O D I D mm in Indoor mm Dimension inch W H D Outdoor mm inch Net Weight Indoor kg lbs Outdoor kg lbs 900 900 770 770 3 070 3 070 2 630 3 510 2 260 3 020 9 000 12 000 3 700 4 040 3 180 3 4...

Page 70: ...purposes LGE Internal Use Only Exploded View Exploded View 263230B 264110 359011 152302 137211 135800 135080 135316 263040 131410 733010 352150 147581 146811B 135516 146811A 263230A 268711D 268711H 268711G 159830 35211B 268711C 135311 354210 249951 342800 266090 346810 267110 Indoor Unit ...

Page 71: ...es LGE Internal Use Only Exploded View Outdoor Unit Model AS W126ERH0 BH0 VH0 AS W096ERH0 BH0 VH0 UL Chassis 554031 437212 349480 435511 554160 55211G 550140 552203A 552203B 430410 447910 261704 263230D 268711F 649950 552200 437211 263230C 435301 559010 349600 546810 561410 552202 552116 661400 ...

Page 72: ...P No 3828A20462X JAN 2008 ...

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