LG AS-H076QGA2/QNA2 Service Manual Download Page 62

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Room Air Conditioner

Replacement Parts List

Parts List (Indoor)

LOCATION

DESCRIPTION

PART No.

REMARKS

No.

131410

CHASSIS ASSEMBLY

3141A20006A

3141A20006B

3141A20005A

135311

GRILLE ASSEMBLY,DISCHARGE(INDOOR)

3531A10232T

3531A10234P

135312

GRILLE ASSEMBLY,FRONT(INDOOR)

3531A21014C

3531A21014D

3531A21017B

135314

GRILLE,INLET

3530A00010A

3530A10090A

135516

COVER ASSEMBLY,MOTOR

3551A20050E

3551A20050H

3551A20050B

146811

MOTOR ASSEMBLY,STEP

4681A20055A

152302

FILTER(MECH),A/C

5230A10005A

5230A20014B

152313

FILTER ASSEMBLY,DEODORIZER

5231A20032E

159830

AIR CLEANER ASSEMBLY

159901

VANE,HORIZONTAL

5990A10005A

5990A20007A

249951

CONTROL BOX ASSEMBLY,INDOOR

4995A20257A

4995A90257B

4995A20258A

263230

THERMISTOR ASSEMBLY

6323A20004L

6323A20004K

264110

POWER CORD ASSEMBLY

6411A20026D

6411A20026A

266090

H.V ASSEMBLY

267110

REMOTE CONTROLLER ASSEMBLY

6711A90023B

6711A90023C

6711A90023B

268712

PWB(PCB) ASSEMBLY,DISPLAY

6871A90476C

268714-1

PWB(PCB) ASSEMBLY,MAIN(AC)

6871A20272K

6871A20272A

6871A20272B

268714-2

PWB(PCB) ASSEMBLY,MAIN(DC)

6871A20310E

6871A20310G

6871A20309E

342800

BEARING

4280A20004A

4280A20004B

346810

MOTOR ASSEMBLY,INDOOR

4681A20062L

4681A20048R

35211B

TUBE ASSEMBLY,TUBING

5211A21046H

5211A21046R

5211A21046S

352150

HOSE ASSEMBLY,DRAIN

5251AR2575F

354212

EVAPORATOR ASSEMBLY,FIRST

5421A10024A

5421A20086A

359011

FAN ASSEMBLY,CROSS FLOW

5901A20007E

5901A20007D

733010

PLATE ASSEMBLY,INSTALL

3301A10003A

1H00843A

W0CZZ

CAPACITOR,DRAWING

3H01487A

W6640

PWB(PCB) ASSEMBLY,SUB

6871A20283B

6871A20283A

6871A20283B

LS-C096QLA2

LS-H096QLA2

LS-C126RLA2

NOTE)

Please ensure GCSC since these parts may be changed depending upon the buyer's request.

(GCSC WEBSITE http://biz.LGservice.com)

Summary of Contents for AS-H076QGA2/QNA2

Page 1: ... H076QGA2 QNA2 AS H096QGA2 QNA2 AS H126RGA2 RNA2 LS C096QLA2 LS H096QLA2 LS C126RLA2 LS H126RGA2 RMA2 RLA2 CAUTION website http www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Page 2: ...18 Connection of the Pipes Outdoor 21 Connect the Cable to the Indoor Unit 22 Connect the Cable to the Outdoor Unit 23 Checking the Drainage 24 Form the Piping 24 Test Running 25 Operation 26 Function of Controls 26 Display Function 30 Self diagnosis Function 30 Remote Control Operations 31 Disassembly 32 Indoor Unit 32 Schematic Diagram 35 Electric Control Device 35 Wiring Diagram 37 Components L...

Page 3: ...r B 1 Auto Swing Plasma Filter C 2 Telephone LED Display D 3 Telephone LCD Display E 4 Auto Swing Plasma Filter Telephone LCD F 5 Low Ambient Ambient change G 6 Plasma Filter Low Ambient Ambient change H 7 Internet J 8 Auto Swing Plasma Filter Oxygen Generator K 9 Auto Swing Soft Start Z L Auto Swing Star Rating M Y Auto Swing Star Rating Plasma Filter N X Auto Swing Soft Start Star Rating P W Aut...

Page 4: ... 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 1 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...

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: ...ad 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 shock or fire There is risk of fire ele...

Page 9: ...e 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 could cause personal injury Operation Wax ...

Page 10: ... mm 260 285 D mm 155 156 Model Dimension 7K 9K Btu Series 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 7k 9k 12k Btu Series DIM unit W mm 575 H mm 525 D mm 260 L1 mm 301 L2 mm 73 L3 mm 392 L4 mm 35 L5 mm 100 Dimensions Outdoor Unit ...

Page 12: ...ting Cable Power Cord 12 Room Air Conditioner Product Specifications Product Specifications Table 1 7 000 9 000 12 000 7 300 9 300 12 500 1 1 2 1 2 1Ø 220 240V 50Hz 1Ø 220 240V 50Hz 1Ø 220 240V 50Hz 5 1 5 5 5 9 6 6 8 8 9 5 20 20 20 34 36 39 49 49 49 730 940 1 250 760 970 1 300 3 2 4 1 5 6 3 3 4 2 5 8 9 59 9 57 9 60 2 81 2 81 2 82 3 7 7 0 9 5 18 18 18 824 x 260 x 155 824 x 260 x 155 900 x 285 x 156...

Page 13: ...rant R22 g Airflow Direction Control Up Down Airflow Direction Control Left Right Chaos Wind Timer Self Diagnosis Remocon Type Service Valve Liquid inch mm Gas Sleeping Operation Drain Hose Connecting Cable Power Cord Table 2 9 000 12 000 1 2 1 5 1Ø 220 240V 50Hz 1Ø 220 240V 50Hz 5 9 6 6 8 8 9 5 20 26 36 40 49 49 900 1 260 4 5 5 6 9 57 9 6 7 9 5 18 18 824 x 260 x 155 900 x 285 x 156 575 x 525 x 26...

Page 14: ...tion Control Up Down Airflow Direction Control Left Right Chaos Wind Timer Self Diagnosis Remocon Type Service Valve Liquid inch mm Gas Sleeping Operation Drain Hose Connecting Cable Power Cord Table 3 9000 12000 9000 13000 1 2 1 5 1Ø 220 240V 50Hz 1Ø 220 240V 50Hz 5 9 6 6 8 8 9 5 20 26 36 40 48 49 950 1270 860 1230 4 2 5 8 3 8 5 6 9 5 9 45 3 07 3 1 7 5 9 5 18 25 824 x 260 x 155 900 x 285 x 156 57...

Page 15: ...e noise and vibration are mini mum Select a place so that the warm air and noise from the air conditioner do not disturb neighbors More than A More than B More than 2 3m More than B More than 10cm More than 10cm More than 60cm More than 60cm More than 70cm CAUTION Install the indoor unit on the wall where the height from the floors more than 2 3 meters CAUTION Capacity is based on standard length ...

Page 16: ...he 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 Grille Installation...

Page 17: ...ting 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 them on after flaring work Flaring work Firmly hold copper pipe in a die in the dimension shown in the table above Carry out flaring work using flaring tool as shown below Check Compare the flared work with figure below If flare is noted to be defective cut...

Page 18: ...ose with an insula tion material so that dripping from sweating condensation will not dam age furniture or floors Foamed polyethylene or equivalent is recom mended 4 Indoor unit installation Hook the indoor unit onto the upper portion of the installation 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 prop erly s...

Page 19: ...yl tape for enough to cover where they fit into the rear piping housing section For left rear piping 1 Route the indoor tubing and the drain hose to the required piping hole position 2 Insert the piping drain hose and the connecting cable into the piping hole 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 Wrench Indoor unit tubing Open ...

Page 20: ...re nut with a wrench When extending the drain hose at the indoor unit install the drain pipe 7 Wrap the insulation material around the con necting portion Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material Bind them together with vinyl tape so that there is no gap Wrap the area which accommodates the rear pip ing housing section with vinyl tape mm inch kg...

Page 21: ...ft and right Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound 1 Align the center of the pipings and sufficiently tighten the flare nut by hand 2 Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the...

Page 22: ... 7k 14k 18k 24k 28k 30k 32k 36k 38k 1 0 1 5 2 5 2 5 5 5 Unit A Indoor Indoor Indoor Outdoor Outdoor Cable Type B H05VV F H05VV F H05VV F H05RN F H05RN F NORMAL CROSS SECTIONAL AREA Grade 7k 14k 18k 24k 28k 1 0 1 5 2 5 Cable Type B H07RN F H07RN F H07RN F NORMAL CROSS SECTIONAL AREA Grade 30k 32k 36k 38k 0 75 0 75 Cable Type B H07RN F H07RN F NORMAL CROSS SECTIONAL AREA Grade mm2 mm2 mm2 CAUTION Th...

Page 23: ...o 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 Confirm that the ...

Page 24: ...ould be routed above the ground Secure the drain hose appropriately 2 In cases where the outdoor unit is installed below the indoor unit perform the following Tape the piping drain hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent 3 In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the p...

Page 25: ...ing 4 For reference the gas side pressure of optimum condition is as below Cooling If the actual pressure is higher than shown the system is most likely over charged and charge should be removed If the actual pres sure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use NOTICE NOTICE Bolt Tubing connection Discharge temper...

Page 26: ... OFF except when hot start during heating mode operation or while in defrost control Cooling Mode Operation When the intake air temperature reaches 0 5 C below the setting temp the compressor and the outdoor fan stop When it reaches 0 5 C above the setting temp they start to operate again Compressor ON Temp Setting Temp 0 5 C Compressor OFF Temp Setting Temp 0 5 C While in compressor running opera...

Page 27: ... whether to carry out defrost control or not and the time of defrost control are determined according to the following conditions 1 While in heating mode operation the maximum of the indoor pipe temperature is measured and it is com pared with the present indoor pipe temperature to get the difference of the indoor pipe temperatures the maximum temperature of indoor pipe the present temperature of ...

Page 28: ...ntrolled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Jet Cool Mode Operation H P Model While in heating mode or Fuzzy operation the Jet C...

Page 29: ...rom frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the...

Page 30: ...dicator Timer Indicator Indoor Unit on Indicator Indoor Unit on Indicator Deicer Indicator Operation Indicator Timer Indicator Compressor on Indicator OUT DOOR IN DOOR IN DOOR 3sec 3sec 3sec once Error Code 1 Error Display LED Indoor body operation LED Error contents Indoor room temperature thermistor open short Indoor pipe temperature thermistor open short Indoor Thermistor assembly check SVC che...

Page 31: ...Service Manual 31 Remote Control Operations The remote control transmits the signals to the system Operation ...

Page 32: ...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 Display P C B Conductor Step Motor Conductor Earth Conductor Motor Conductor Sensor C...

Page 33: ...ssis 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 Caution label CAUTION When repair do not damage the Caution label ...

Page 34: ...he 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 aligning bearing Motor cover ...

Page 35: ... SDA WP G 1 2 3 A0 A1 4 A2 CAT24WC01J R14H R13H R12H 20K R01P 2012 R02P 20K 2012 OJ4H 5V 8 20K R02F 7 3 4 5 2 6 1 5V Vss0 Vdd0 C04C 103 A d 1 d V NEC TERMINAL BOARD STO2D 200 SD01D TNY266P DC HIGH VOLTAGE GND D 5 4 1 IC02D DC HIGH VOLTAGE GND TLP421 V4 BL C05D 472M 3 2 104 50V C02D EN 4 S 2 BP 1 D07D UG2D 470 35V SD C03D 681 RY 4WAY 1 6W R03D 39 C04D 1 8 5V CN ACDC CN ACDC2 INT 3 6 2 7 12V SMPS 5 ...

Page 36: ...36 Room Air Conditioner Schematic Diagram HVB TYPE PLASMA ...

Page 37: ...V CN DISP DISPLAY PWB ASM P No 3854A20238H CN CONT TRIAC AC PWB ASM DC PWB ASM CN TAB RY COMP TO OUTDOOR UNIT 4 3 1 L BR BR BL BK RD GN YL 2 N 3 4 FUSE 250V T2A STEP MOTOR H V ASM S W1 S W2 AIR CLEAN PLASMA MOTOR OR RD BK BK BK BK BK BK BK BK BK POWER BR BK Plained BL WH Ribbed BK YL SH CAPA T BOARD T BLOCK CN MOTOR THERMISTOR STEP MOTOR CN ACDC1 CN ACDC2 CN TH CN U D CN L R CN HVB CN 12V CN DISP ...

Page 38: ...MOTOR GN YL RD BL CAPACITOR H C F R C S BR BL GN YL BR BL GN YL 1 L 2 N 3854AR2262F COMP C S R FAN MOTOR OLP BR BR RD BL BL GN YL BR BL GN YL BL BL RD BL YL CAPACITOR BR RD BL YL TO INDOOR UNIT OUTDOOR WIRING DIAGRAM 3854A30077J TERMINAL BLOCK H C F PTC 1 L 2 N COMP C S R FAN MOTOR BR RD BL BR BL BK RD YL GN YL BR BL BK RD GN YL BL BL REVERSING VALVE RD BL YL BL BK RD CAPACITOR RD BR RD BL YL TO I...

Page 39: ...Service Manual 39 Schematic Diagram Components Location MAIN P W B ASSEMBLY AC PART HEAT PUMP MODEL MAIN P W B ASSEMBLY DC PART TOP VIEW BOTTOM VIEW ...

Page 40: ...40 Room Air Conditioner Schematic Diagram DISPLAY ASSEMBLY 6871A20476 6871A90476 TOP VIEW BOTTOM VIEW ...

Page 41: ...GE EVAPORATOR HEAT EXCHANGE CONDENSER HEAT EXCHANGE CONDENSER COMPRESSOR COMPRESSOR ACCUMU LATOR GAS SIDE GAS SIDE 3 WAY VALVE LIQUID SIDE LIQUID SIDE 3 WAY VALVE CAPILLARY TUBE CAPILLARY TUBE CHECK VALVE Heating Model only COOLING HEATING REVERSING VALVE Heating Model Only 1 Cooling Only Models Refrigeration Cycle Diagram 2 Cooling Heating Models ...

Page 42: ... unit B In case more than 5m 7k 14k 3 8 Ø9 52 1 4 Ø6 35 4 or 7 5 7 15 20 1 2 Ø12 7 1 4 Ø6 35 4 or 7 5 7 15 20 1 2 Ø12 7 1 4 Ø6 35 4 or 7 5 15 30 20 18k 28k 5 8 Ø15 88 1 4 Ø6 35 4 or 7 5 15 30 20 5 8 Ø15 88 3 8 Ø9 52 4 or 7 5 15 30 30 30k 38k 5 8 Ø15 88 3 8 Ø9 52 7 5 15 30 30 3 4 Ø19 05 3 8 Ø9 52 7 5 15 30 50 Pipe Size Capacity Btu h GAS LIQUID Additional Refrigerant g m Max Length A m Max Elevatio...

Page 43: ...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 44: ...e 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 and mount the 2 way and 3 way valve s stem nuts and the ser vice port nut Use torque wrench to tighten the service port nut to a t...

Page 45: ...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 46: ...e 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 Liquid side Indoor unit Gas side 3 Way valve CLOS...

Page 47: ...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 operating the air conditioner turn off t...

Page 48: ...hod of using graph Find outdoor temperature Find indoor temperature onto the curve of outdoor temperature Read suction pressure at the axis of ordinates The method of using equation Calculate suction pressure after putting indoor and outdoor temperature into the equation 13 At operating the Unit for 10 minutes Suction Pressure Kg cm 2 g Outdoor Temp C Indoor Temp C 12 11 10 9 8 7 6 5 5 10 15 20 25...

Page 49: ...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 5 kg cm2 G Cooling at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and...

Page 50: ...age 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 PCB Assembly Check Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector Main PCB Board Operation Check Items SMPS Transformer Indoor unit Input Volta...

Page 51: ...CD screen replace battery Check the contact of CN DISP1 connector 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 Check Display PCB Assembly Voltage between CN DISP1 DC 5V Check the connecting circuit between the remote controlle...

Page 52: ...e not engaged Compressor Outdoor Fan is stopped Check the related circuit of RY FAN Check the indoor temperature sensor is disconnected or not About 10kΩ at 25 C Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Check the open or short of conmecting wires between indoor and outdoor Check Relay RY C...

Page 53: ...Check the related circuit of indoor Fan Motor The pin NO 63 of Micom and the part for driving TRIAC the input and output signal of IC01M PIN NO 7 10 Check the pattern Check the TRIAC TRIAC Open Indoor Fan Motor never operate TRIAC short Indoor Fan Motor always operates in case of ON or OFF When indoor Fan does not operate The voltage of PIN NO 1 orange and 3 yellow of CN MOTOR About AC 180V over A...

Page 54: ... condition on PWB of CN U D Connector If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver When Vertical Louver does not operate Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pin RED of CN U D and GND Confirm that there is a soldering short at follo...

Page 55: ...re is disconnected or not about 10KΩ at 25 C Check the indoor pipe temperature is disconnected or not about 5KΩ at 25 C Turn ON Main Power Check the DC voltage on the PWB ASSEMBLY The details of check are as followings Check point Between Micom NO 59 and GND Between IC01M NO 11 and GND Comp ON DC 5V Below DC 1V Comp OFF DC 0V About DC 12V Check point Between Micom NO 51 and GND Between IC02M NO 11...

Page 56: ...ing Guide Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor 4 way Check the open or short of connecting wires between indoor and outdoor ...

Page 57: ...ploded View Exploded View 346810 146811 354212 131410 359011 342800 159901 268712 159830 135311 135312 267110 249951 733010 152313 135314 152302 35211B 135516 352150 266090 268714 1 268714 2 W6640 263230 264110 Indoor Unit ...

Page 58: ...loded View Outdoor Unit 9K Cooling Only Model 58 Room Air Conditioner 437210 559010 437212 552102 552111 435511 546810 430410 554031 567502 554160 550140 649950 552203 1 552203 2 W0CZZ 552202 552116 561410 ...

Page 59: ...ual 59 Exploded View 554031 437212 435511 W0CZZ 552202 567502 552116 552201 554160 561410 552111 550140 552203 1 552203 2 430410 447910 649950 552102 2 552102 1 437210 435301 559010 546810 Outdoor Unit All Models ...

Page 60: ...EMBLY 6411A20026D 6411A20026D 6411A20026A R 266090 H V ASSEMBLY R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90023C 6711A90023C 6711A90023C R 268712 PWB PCB ASSEMBLY DISPLAY 6871A90476C 6871A90476C 6871A90476C R 268714 1 PWB PCB ASSEMBLY MAIN AC 6871A20272R 6871A20272A 6871A20272A R 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20310B 6871A20310G 6871A20309F R 342800 BEARING 4280A20004B 4280A20004B 4280A2000...

Page 61: ...411A20026D 6411A20026A R 266090 H V ASSEMBLY R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20030Z 6711A20030Z 6711A20030Z R 268712 PWB PCB ASSEMBLY DISPLAY 6871A90476C 6871A90476C 6871A90476C R 268714 1 PWB PCB ASSEMBLY MAIN AC 6871A20272R 6871A20272A 6871A20272A R 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20310B 6871A20310G 6871A20309F R 342800 BEARING 4280A20004B 4280A20004B 4280A20004B R 346810 MOTOR A...

Page 62: ...A20026D 6411A20026D 6411A20026A R 266090 H V ASSEMBLY R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90023B 6711A90023C 6711A90023B R 268712 PWB PCB ASSEMBLY DISPLAY 6871A90476C 6871A90476C 6871A90476C R 268714 1 PWB PCB ASSEMBLY MAIN AC 6871A20272K 6871A20272A 6871A20272B R 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20310E 6871A20310G 6871A20309E R 342800 BEARING 4280A20004A 4280A20004A 4280A20004B R 34681...

Page 63: ...Y 6411A20026A 6411A20026A 6411A20026A R 266090 H V ASSEMBLY R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90023C 6711A90023C 6711A20030S R 268712 PWB PCB ASSEMBLY DISPLAY 6871A90476C 6871A90476C 6871A90476C R 268714 1 PWB PCB ASSEMBLY MAIN AC 6871A20272A 6871A20272A 6871A20272A R 268714 2 PWB PCB ASSEMBLY MAIN DC 6871A20309F 6871A20309F 6871A20309F R 342800 BEARING 4280A20004B 4280A20004B 4280A20004B R...

Page 64: ...Y REVERSING 5211A20188T 5211A20188P 5211A20188R R 552201 VALVE CHECK 5220AR7182A R 552202 VALVE REVERSING 5220AR3228J 5220AR3228J 5220AR3228J R 552203 1 VALVE SERVICE 2H02479P 2H02479P 2H02479P R 552203 2 VALVE SERVICE 5220A20001Q 5220A20001Q 5220A20006F R 554031 CONDENSER ASSEMBLY BENT 5403A20059B 5403A20059B 5403A20045Z R 554160 COMPRESSOR SET 2520UZBP2AA 2520UGAP2HB 2520UGHP2CA R 559010 FAN ASS...

Page 65: ...E ASSEMBLY CAPILLARY 5211A20133Z 5211A21143F R 552116 TUBE ASSEMBLY REVERSING 5211A21027B R 552201 VALVE CHECK R 552202 VALVE REVERSING 5220AR3084E R 552203 1 VALVE SERVICE 2H02479P 2H02479P R 552203 2 VALVE SERVICE 5220A20040A 5220A20003B R 554031 CONDENSER ASSEMBLY BENT 5403A20059F 5403A20045X R 554160 COMPRESSOR 5416A20013L 2520UKJP2BA R 559010 FAN ASSEMBLY PROPELLER 5900AR1266C 5900AR1266C R 5...

Page 66: ...LARY BEND 5424AR3582H R 552111 TUBE ASSEMBLY CAPILLARY 5211A30275D R 552116 TUBE ASSEMBLY REVERSING R 552201 VALVE CHECK R 552202 VALVE REVERSING R 552203 1 VALVE SERVICE 2H02479F R 552203 2 VALVE SERVICE 2A00393U R 554031 CONDENSER ASSEMBLY BENT 5403AR2870M R 554160 COMPRESSOR 5416A20013L R 559010 FAN ASSEMBLY PROPELLER 5900AR1266C R 561410 COIL ASSEMBLY REVERSING VALVE R 567502 O L P 6750A30001C...

Page 67: ...16 TUBE ASSEMBLY REVERSING 5211A20188S 5211A20188S 5211A20188S R 552201 VALVE CHECK 3H01552C 3H01552C 3H01552C R 552202 VALVE REVERSING 5220AR3084E 5220AR3084E 5220AR3084E R 552203 1 VALVE SERVICE 2H02479P 2H02479P 2H02479P R 552203 2 VALVE SERVICE 5220A20003B 5220A20003B 5220A20003B R 554031 CONDENSER ASSEMBLY BENT 5403A20026B 5403A20026B 5403A20026B R 554160 COMPRESSOR 2520UMAP2LA 2520UMAP2LA 25...

Page 68: ...P No 3828A20462A Printed in Korea ...

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LG AS-H076QGA2/QNA2, Service Manual, Page: 62 / 68

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