LG AS-W096EBH1 Service Manual Download

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Room Air Conditioner

SERVICE MANUAL

MODELS: AS-W096ERH1

AS-W096EBH1
AS-W096EVH1
AS-W126ERH1
AS-W126EBH1
AS-W126EVH1

CAUTION

website http://www.lgservice.com

• BEFORE SERVICING THE UNIT, READ THE SAFETY

PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

Summary of Contents for AS-W096EBH1

Page 1: ...MANUAL LG MODELS AS W096ERH1 AS W096EBH1 AS W096EVH1 AS W126ERH1 AS W126EBH1 AS W126EVH1 CAUTION website http www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Page 2: ...2 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 Replacement Parts List 72 ...

Page 3: ...5V 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 F A changeove A clean Low A G Nano Plasma F A chan...

Page 4: ...vision 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 Basic 4Way B Plasma Filter C Plasma Filter 4 W...

Page 5: ...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 There is risk of electric shock Install the panel and ...

Page 6: ... 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 dealer or an authorized ser vice center Do not insta...

Page 7: ...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 is risk of fire failure of the product or electri...

Page 8: ...ion 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 shock or fire There is risk of fire electric shoc...

Page 9: ... 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 could cause personal injury Operation Wax Safety Pre...

Page 10: ... 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: ... Manual 11 W L2 L3 L1 D H L4 L5 Gas side 3 way valve Liquid side 2 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 ...

Page 12: ...hbors 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 10cm More than 50cm More than 2 3m More than 50cm Capacity is based on standard length and maxi mum allowance length is on the basis of reliability Oil tr...

Page 13: ... 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 Grille How to Fix Installation Plate Drill a Hole in the...

Page 14: ...ng 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 completed burr removal not possible to put t...

Page 15: ... 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 on the installa tion plate by moving i...

Page 16: ...t 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 unit and the installation plate and se...

Page 17: ...e 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 push the bottom of tubing holder to be engaged at th...

Page 18: ...ning 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 kg m Ø6 35 1 4 1 8 Ø9 52 3 8 4 2 Ø12 7 1 2 5 5 Ø15 88 5 8 6 6 Ø19 05 3 4 6 6 Outside diameter Torque Outdoor unit Gas side piping Bigger diameter Liquid side piping Sma...

Page 19: ...y 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 The power connecting cable connecting the indoor an...

Page 20: ... 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 of the rated voltage marked on the name plate 6...

Page 21: ...ped 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 connecting cable from down to up Secure the taped pip...

Page 22: ...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 manifold valve with pressure gauges and dry nitrogen ...

Page 23: ...are 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 service port cap from the 3 way valve 3 To open t...

Page 24: ...te 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 is as below Cooling Bolt Tubing connection Dis...

Page 25: ...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 indication Lamps LCD Cooling Mode Operation Healty de...

Page 26: ...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 any operation mode with selecting the function ...

Page 27: ...xcept 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 Cooling Mode of outdoor temp When the temp of power mod...

Page 28: ...ppliance 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 compressor operates without pause while in cooling cyc...

Page 29: ...ep 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 W096ERH1 EBH0 EVH1 25 35 40 52 56 74 82 AS W126ERH1 EBH0 EVH1 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 mode operation When the dehumidification operation i...

Page 30: ...cy 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 W096ERH1 EBH0 EVH1 35 40 48 56 65 90 94 AS W126ERH1 EBH0 EVH1 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 operation the Jet Cool key cannot be input When ...

Page 31: ... 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 position 8 deg 16 deg 32 deg Basic pattern 1 Basic pa...

Page 32: ...r 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 Heating OFF temp Setting temp 3 0 C 1 2 Sleep time hr 1 0 C down 1 0 C down When the sleep time is reached after 1 2 3 4 5 6 7hr is input...

Page 33: ...e 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 main body for 3 seconds in order to operate in the tr...

Page 34: ...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 voltage below DC 140V occurs 5 times within 1 hou...

Page 35: ... 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 on 2 T D Pipe Temp COMP Freq Free Free Fh min OFF...

Page 36: ...f 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 Step 5 Option _ 13 Min Option _ 12 off 15sec Min ...

Page 37: ... 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 prevent frosting of evaporator and keep cooling op...

Page 38: ...rns 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 flickers and existing additional heat Logic is toggl...

Page 39: ...ompressor 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 for 2min Indoor fan lock detection BLDC Tact S W ...

Page 40: ...TO 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 14 HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON O...

Page 41: ...e Grille from the Chassis Set the up and down air discharge louver to 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 ...

Page 42: ...rom 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: ... 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 aligning bearing Bearing Cross flow fan Motor cove...

Page 44: ...OMPRESSOR 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: ...ise 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 Service port Service port cap To outdoor unit Flare...

Page 46: ...t 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 especially check for gas leakage from the 2 way and ...

Page 47: ...e 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 cating 3 to 5kg cm2 g 8 Disconnect the charge set ...

Page 48: ...ch 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 the open position Be sure to use a hexagonal wren...

Page 49: ...rge 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 refrigerant gradually if it is dis charged too su...

Page 50: ...ward 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 Open Open Vacuum pump 3 Way valve Outdoor unit L...

Page 51: ... 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 has been charged with liquid refrigerant while ope...

Page 52: ...ir 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 attaching the thermometer to the low pressure tubing a...

Page 53: ... 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 Outdoor fan lock error D Pipe TH is short or open...

Page 54: ...sis 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 conditioner Off condition Display the error code...

Page 55: ...wer 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 power mod ule 4 IC04D 7805 5 IC01A KIA7036 Specificat...

Page 56: ...d 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 point Check the connecting circuit between MICO...

Page 57: ...istance 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 Error code Error code Cause of error Outdoor TH is co...

Page 58: ...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 flow Description Cause of error Error code ...

Page 59: ...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 pcb Is right YES No Check IC01K IC02K D01K D03K ZD0...

Page 60: ...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 D03Z C08Z 10Z 12Z 16Z Assembling state of R01P R...

Page 61: ...ally 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 marking on pcb and component Spec of R01N 1kΩ R02N 1 65...

Page 62: ...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 outdoor unit remove obstacles in outdoor unit N...

Page 63: ...f 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 error Error code ...

Page 64: ...64 Room Air Conditioner Wiring Diagram Schematic Diagram Indoor Unit Models AS W096ERH1 BH1 VH1 AS W126ERH1 BH1 VH1 Schematic Diagram ...

Page 65: ...Service Manual 65 Schematic Diagram Outdoor Unit Models AS W096ERH1 BH1 VH1 AS W126ERH1 BH1 VH1 ...

Page 66: ...66 Room Air Conditioner Schematic Diagram Components Location TOP VIEW BOTTOM VIEW Indoor Unit Models AS W096ERH1 BH1 VH1 AS W126ERH1 BH1 VH1 ...

Page 67: ... ZNR02J J28 R02J J29 J32 J31 J30 R03J C02K C03J C03K ZD03K D01K R 0 8 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 C...

Page 68: ...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: ...gerant 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 2 520 3 510 2 170 3 020 8 600 12 000 3 700 4 040 3 180 3 470 12 620 13800 900 900 770 770 3 070 3 070 3 400 4 57...

Page 70: ...ploded View 263230 2 264110 359011 152302 135314 135312 263040 131410 733010 352150 159901 146811 1 146811 2 135516 146811 1 263230 1 668713 1 668713 3 668713 2 159830 35211B 268714 135311 354210 249951 342800 266090 346810 267110 Indoor Unit ...

Page 71: ... AS W126ERH1 BH1 VH1 AS W096ERH1 BH1 VH1 UL Chassis 554031 437212 437211 2 437211 1 435511 554160 55211G 550140 552203 1 552203 2 430410 447910 658740 263230 4 668711 649950 552102 437210 263230 3 435301 559010 549610 546810 561410 552202 552116 561411 ...

Page 72: ...5A20495U 4995A20495U 4995A20495U 263230 1 THERMISTOR ASSEMBLY 6323A20042A 6323A20042A 6323A20042A 263230 2 THERMISTOR ASSEMBLY 6323A30002F 6323A30002F 6323A30002F 264110 POWER CORD 6411A20013E 6411A20013E 6411A20013E 266090 HVPS DC DC 6609A10003Z 6609A10003Z 6609A10003Z 267110 REMOTE CONTROLLER ASSEMBLY 6711A20083X 6711A20083X 6711A20083X 263040 DISPLAY ELEMENT UNCLASSIFIED 6306A90009A 6306A90009A...

Page 73: ...20495V 263230 1 THERMISTOR ASSEMBLY 6323A20042A 6323A20042A 6323A20042A 263230 2 THERMISTOR ASSEMBLY 6323A30002F 6323A30002F 6323A30002F 264110 POWER CORD 6411A20013E 6411A20013E 6411A20013E 266090 HVPS DC DC 6609A10003Z 6609A10003Z 6609A10003Z 267110 REMOTE CONTROLLER ASSEMBLY 6711A20083X 6711A20083X 6711A20083X 263040 DISPLAY ELEMENT UNCLASSIFIED 6306A90009A 6306A90009A 6306A90009A 268714 PCB AS...

Page 74: ... 546810 MOTOR UNCLASSIFIED 4681A20122A 4681A20122A 549610 BRACKET ASSEMBLY MOTOR OUTDOOR 4961A10015B 4961A10015B 550140 DAMPER COMPRESSOR 4H00982E 4H00982E 55211G TUBE ASSEMBLY EXPANSION 5211A22520A 5211A22520A 552116 TUBE ASSEMBLY REVERSE 5211A24134A 5211A24134A 552200 VALVE EXPANSION BODY 5220A90001F 5220A90001F 552202 VALVE REVERSE 5220AR3228D 5220AR3228D 552203 1 VALVE SERVICE 5220A20005B 5220...

Page 75: ...P No MFL33984901 August 2006 Printed in Korea ...

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