LG ABNH366KSB0 Service Manual Download Page 24

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LGE Internal Use Only

Model : LB-M7280BL

1. Indoor (LBNM7281BL)

2. Outdoor (LBUM7280BL)

OUTDOOR UNIT WIRING DIAGRAM

P/NO.:3854A20021V

TNS

NO NC

C TH

WH F2

GN/YL

1(L)

2(N)

Tmo

INDOOR UNIT

BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE

F1,2,3

49C

FMo

49FMo

D.P

C TH

20SV

52C

52F1

TMo

63H1

63H2

3.P.D

HIGH PRESSURE SWITCH

HIGH PRESSURE SWITCH FOR HEATING

3 PHASE DETECTOR

MAGNETIC CONTACTOR

RELAY FOR FMo

MAIN TERMINAL BLOCK

TERMINAL BLOCK FOR CONNECTING

RUN CAPACITOR FOR FMo

DEICER PCB

THETMISTOR FOR PIPE TEMP.(OUTDOOR)

4-WAY VALVE COIL

FUSE(250V,10A)

INTERNAL O.L.P FOR COMP.

OUTDOOR FAN MOTOR

INTERNAL T.P FOR FMo

RD : RED
WH : WHITE
YL : YELLOW
GN/YL : GREEN/YELLOW

20SV

NOTE

GN/YL

FMo

49FMo

FMo

49FMo

COMP

49C

T1 T3 T2

POWER SUPPLY
3Ø,380-415,50Hz
TERMINAL(4P)

R S T N

63H1

63H2

52C

52F1

3.P.D

D.P

INDOOR WIRING DIAGRAM

INDOOR

MOTOR

DRAIN

PUMP

GN/YL

COMP

4 WAY

FUSE

250V10A

ROOM.

THERMISTOR

PIPE

THERMISTOR

RF REMOTE

CONTROL

FLOAT S/W

REMOTE

CONTROL

ZONE

CONTROL

OPTIONAL
EXTRA

TERMINAL

BLOCK

TO OUTDOOR UNIT

3854A20172T

3(L)

4(N)

TELE

CONTROL

GN/YL

Summary of Contents for ABNH366KSB0

Page 1: ...nly http biz lgservice com MODEL LBNS3061BL LBNS3062BL LBNS3063BL LBNS3064BL LBNK3661BL ABNH366KSB0 LBNK4261BL LBNK4262BL LBNK4263BL LBNK4881BL LBNK4882BL LBNK4883BL LBNH608RSS1 LBNH608RSS3 LBNM7280BL LBNM7281BL LBNM9080BL LBNM9081BL LBNM1081BL LBUS3061BL LBUS3062BL LBUS3064BL LBUK3660BL ABUH366KSB0 LBUK4260BL LBUK4262BL LBUK4880BL LBUK4882BL LBUH608RSS3 LBUM7280BL LBUM9080BL LBU1081BL ...

Page 2: ... Diagram 15 Operation Details 26 Installation of Indoor Outdoor Unit 29 Cycle 43 Cycle Troubleshooting Guide 46 Electronic Parts Troubleshooting Guide 47 Electronic Control Device 50 Exploded View 51 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 3: ...idually or totally by central control function Group Control Optional Wiring Radio Frequency Control Optional Each controller can control 16 units and 8 controllers can connect It operates maximum 16 units by only one wired remote con troller and each unit starts random to prevent overcurrent Room temperature sensor Thermistor Maintains the room temperature in accordance with the Setting Temp Indo...

Page 4: ... Timer Weekly Program Cooling model only Heating model only Low Med High Cooling Operation Mode Heating Operation Mode Auto Operation Mode Soft Dry Operation Mode Fan Operation Mode Fan Auto Function HI MED LO Program Holiday SET CLR Min Hour Week Timer Cancel Timer Cancel Used to control the indoor air flow when the comp is off Fan operates without cooling heating AUTO High 39 C LOW 11 C Cooling ...

Page 5: ...BNK4881BL LBUK4880BL 1 220 240 50 1 220 240 50 1 220 240 50 3 380 415 50 7 307 29 000 9 072 36 000 10 548 42 000 12 096 48 000 8500 10551 12309 14067 3200 3600 5100 4900 8 064 32 000 9 072 36 000 11 314 45 500 12 096 48 000 9378 10551 13190 14067 3000 3400 4700 4400 14 16 22 5 8 13 5 14 21 7 3 30 26 22 35 32 28 46 38 32 49 47 44 30 26 23 35 32 28 46 38 32 49 47 44 2020 2240 3600 3351 22 6 22 6 22 ...

Page 6: ...oor mm Outdoor W x H x D Net Indoor Kg Weight Outdoor Model LBNS3062BL LBUS3062BL LBNK4262BL LBUK4262BL LBNK4882BL LBUK4882BL 1 220 240 50 1 220 240 50 3 380 415 50 7 060 28 000 10 600 42 000 11 800 47 000 8200 12300 13800 3300 5100 5100 7 180 28 500 11 340 45 000 12 100 48 000 8350 13190 14100 2700 4700 4300 15 22 5 8 5 12 5 21 7 3 32 28 23 46 38 32 51 49 46 32 28 23 46 38 32 51 49 46 2020 3300 3...

Page 7: ...1 220 240 50 1 220 240 50 3 380 415 50 7 060 28 000 8 512 33 780 10 600 42 000 11 800 47 000 8200 9900 12300 13800 3300 TBA 5100 5100 7 180 28 500 8 770 34 800 11 340 45 000 12 100 48 000 8350 10200 13190 14100 2700 TBA 4700 4300 15 TBA 22 5 8 5 12 5 TBA 21 7 3 32 28 23 35 32 28 46 38 32 51 49 46 32 28 23 35 32 28 46 38 32 51 49 46 2020 R 22 TBA 3300 R 22 3350 R 22 22 6 22 6 22 6 22 6 3 3 5 3 5 5 ...

Page 8: ...art Fan Auto Network Function LGAP Zone Control Optional Central Control Optional Group Control Optional wiring Radio Frequency Control Optional Weekly Programming Thermistor Drain Pump Optional Auto changeover Auto Operation CL Stand by Consumption 0 Connecting Pipe Liquid Inch Gas mm Dimension Indoor mm Outdoor W x H x D Net Indoor Kg Weight Outdoor Model LBNS3064BL LBUS3064BL 1 220 240 50 6 920...

Page 9: ...50 3 380 415 50 3 380 415 50 3 380 415 50 14 364 57 000 18 143 72 000 21 924 87 000 25 200 100 000 16705 21101 25497 29307 6800 7000 8800 10500 14 364 57 000 18 143 72 000 21 924 87 000 26 208 104 000 16705 21101 25497 30497 5400 6800 7400 8700 12 13 14 5 17 10 13 12 7 14 7 55 50 46 73 68 62 84 76 65 84 76 65 55 50 46 73 68 62 84 76 65 84 76 65 3800 6931 8100 8000 22 6 22 6 22 6 22 6 4 5 5 4 5 5 4...

Page 10: ... 50 3 380 415 50 3 380 415 50 3 380 415 50 14 364 57 000 18 143 72 000 21 924 87 000 25 200 100 000 16705 21101 25497 29307 6800 7000 8800 10500 14 364 57 000 18 143 72 000 21 924 87 000 26 208 104 000 16705 21101 25497 30497 5400 6800 7400 8700 12 13 14 5 17 10 13 12 7 14 7 55 50 46 73 68 62 84 76 65 84 76 65 55 50 46 73 68 62 84 76 65 84 76 65 3800 6931 8100 8000 22 6 22 6 22 6 22 6 4 5 5 4 5 5 ...

Page 11: ...05 482 712 712 712 712 282 282 282 282 327 718 868 868 868 935 168 366 131 131 171 234 234 250 250 234 210 210 239 170 170 170 170 183 163 165 161 161 165 798 934 934 934 1014 798 937 937 937 1014 548 548 548 567 40 40 40 40 67 120 120 120 120 130 22 22 22 22 22 79 79 79 79 84 79 79 79 79 84 514 514 514 514 533 A B C D E F G J K L M N P Q R S T V W X Y MODEL NO LBNM7280BL LBNM7281BL LBNM9080BL LBN...

Page 12: ...l right reserved Only for training and service purposes LGE Internal Use Only A B C D E F G J K L M N P Q R S T V W X Y MODEL NO LBNH608RSS1 LBNH608RSS3 1358 400 652 294 1004 303 1093 215 276 242 172 177 1270 1281 1475 31 105 26 221 1230 590 ...

Page 13: ... B Type C b a c b a c c b a Model No a b c TYPE LBUS3061BL LBUS3062BL LBUS3064BL 870 320 800 A LBUK3660BL 870 320 800 A ABUH366KSB0 870 320 1060 B LBUK4260BL LBUK4262BL 900 370 1220 B LBUK4880BL LBUK4882BL 900 370 1220 B LBUH608RSS1 LBUH608RSS3 900 370 1220 B LBUM7280BL 1245 650 930 C LBUM9080BL 1245 650 930 C LBUM1081BL 1245 650 930 C Unit mm ...

Page 14: ... h 3 4 3 8 7 5 30 5 15 70 48k Btu h 3 4 3 8 7 5 30 5 15 70 60k Btu h 3 4 3 8 7 5 30 5 15 70 72k Btu h 1 1 2 7 5 25 5 20 70 90k Btu h 9 8 5 8 7 5 30 5 20 90 100k Btu h 9 8 5 8 7 5 30 5 20 100 Capacity Gas Liquid Elevation B m Piping Length A m Additional Refrigerant g m Pipe Size Diam eter Ø inch Standard Standard Max Max Model Name Orifice Number LBNS3061BL LBNS3062BL LBNS3063BL LBNS3064BL 63 LBNK...

Page 15: ...L LBUS3062BL LBNS3064BL LBUS3064BL 1 1 Indoor LBNS3061BL 3062BL 1 2 Indoor LBNS3063BL LBNS3064BL INDOOR WIRING DIAGRAM INDOOR MOTOR DRAIN PUMP OR OR BR BL RD BK BL WH GY BL BL BR GN YL COMP 4 WAY FUSE 250V10A ROOM THERMISTOR PIPE THERMISTOR RF REMOTE CONTROL FLOAT S W REMOTE CONTROL ZONE CONTROL OPTIONAL EXTRA TERMINAL BLOCK TO OUTDOOR UNIT 3854A20172T 3 L 4 N 5 6 7 TELE CONTROL GN YL GN YL ...

Page 16: ...IPE TEMP REVERSING COIL MAGNECTIC CONTACTOR TERMINAL BLOCK MAIN TERMINAL BLOCK RELAY FOR FMo RUN CAPACITOR FOR CM COMPRESSOR RUN CAPACITOR FOR FMo OUTDOOR FAN MOTOR FUSE 250V 5A DEICER PCB CRANK CASE HEATER FOR CM START CAPACITOR FOR CM P NO 3854A20026V 20SV WH BK RD BL BK BK WH BK BK WIRING OF FIELD CONNECTING WIRE GN YL Tmo To the indoor unit WH GN YL 2 3 L N 1 2 3 4 5 6 BK BK BK BK YL YL YL BK ...

Page 17: ...B0 ABUH366KSA0 1 1 Indoor LBNK3661BL 1 2 Indoor ABNH366KSB0 INDOOR WIRING DIAGRAM INDOOR MOTOR DRAIN PUMP OR OR BR BL RD BK BL WH GY BL BL BR GN YL COMP 4 WAY FUSE 250V10A ROOM THERMISTOR PIPE THERMISTOR RF REMOTE CONTROL FLOAT S W REMOTE CONTROL ZONE CONTROL OPTIONAL EXTRA TERMINAL BLOCK TO OUTDOOR UNIT 3854A20172T 3 L 4 N 5 6 7 TELE CONTROL GN YL GN YL ...

Page 18: ...TACTOR TERMINAL BLOCK MAIN TERMINAL BLOCK RELAY FOR FMo RUN CAPACITOR FOR CM COMPRESSOR RUN CAPACITOR FOR FMo OUTDOOR FAN MOTOR FUSE 250V 5A DEICER PCB CRANK CASE HEATER FOR CM START CAPACITOR FOR CM P NO 3854A20026W 20SV WH BK RD BL BK BK WH BK BK WIRING OF FIELD CONNECTING WIRE GN YL Tmo To the indoor unit WH GN YL 2 3 L N 1 2 3 4 5 6 BK BK BK BK YL BK YL YL BK RD WH RD RD OR R C S CM Cr Cs FMo ...

Page 19: ... 1 1 Indoor LBNK4261BL 4262BL 1 2 Indoor LBNK4263BL INDOOR WIRING DIAGRAM INDOOR MOTOR DRAIN PUMP OR OR BR BL RD BK BL WH GY BL BL BR GN YL COMP 4 WAY FUSE 250V10A ROOM THERMISTOR PIPE THERMISTOR RF REMOTE CONTROL FLOAT S W REMOTE CONTROL ZONE CONTROL OPTIONAL EXTRA TERMINAL BLOCK TO OUTDOOR UNIT 3854A20172T 3 L 4 N 5 6 7 TELE CONTROL GN YL GN YL ...

Page 20: ...MAIN TERMINAL BLOCK TERMINAL BLOCK FOR CONNECTING 3 PHASE DETECTOR 5 SEC DELAY TIMER D P C TH 20SV Cs 52C 52F1 S S Cr Tm Tmo 3 P D T D 2 N C COMP 49C R S C POWER SUPPLY 1Ø 230V 50Hz FMo 49FMo FMo 49FMo 20SV 20SV NOTE TO INDOOR UNIT C H F Cs A Cr A Cr B T D Tmo F2 BK BL BK NC NO C TH BK RD RD BK WH WH BK BL BLUE BK BLACK BR BROWN OR ORANGE RD RED WH WHITE YL YELLOW GN YL GREEN YELLOW BR BR BL BL BR...

Page 21: ... 1 1 Indoor LBNK4880BL 4882BL 1 2 Indoor LBNK4883BL INDOOR WIRING DIAGRAM INDOOR MOTOR DRAIN PUMP OR OR BR BL RD BK BL WH GY BL BL BR GN YL COMP 4 WAY FUSE 250V10A ROOM THERMISTOR PIPE THERMISTOR RF REMOTE CONTROL FLOAT S W REMOTE CONTROL ZONE CONTROL OPTIONAL EXTRA TERMINAL BLOCK TO OUTDOOR UNIT 3854A20172T 3 L 4 N 5 6 7 TELE CONTROL GN YL GN YL ...

Page 22: ...2 T B3 32 B A FMo 49FMo FMo 49FMo YL BK OR BK RD WH CM 1 2 3 4 5 6 7 8 YL BK OR BK BK BL BL BL BL WH WH Co Co 20SV GN YL TMo To the indoor unit 1 2 3 4 5 6 BK WH WH YL RD F1 BK 63H2 C TH 49FMo 20SV CM HIGH PRESSURE SWITCH FOR HEATING THERMISTOR FOR PIPE TEMP INTERNAL T P FOR FMo REVERSING COIL COMPRESSOR 52C TM 52F1 D P 3 D P MAGNECTIC CONTACTOR MAIN TERMINAL BLOCK RELAY FOR FMo DEICER PCB 3 PHASE...

Page 23: ... 23 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Model LB H608RSS1 608RSS3 1 1 Indoor LBNH608RSS1 1 2 Indoor LBNH608RSS3 ...

Page 24: ...FOR FMo MAIN TERMINAL BLOCK TERMINAL BLOCK FOR CONNECTING RUN CAPACITOR FOR FMo DEICER PCB THETMISTOR FOR PIPETEMP OUTDOOR 4 WAY VALVE COIL FUSE 250V 10A INTERNAL O L P FOR COMP OUTDOOR FAN MOTOR INTERNAL T P FOR FMo RD RED WH WHITE YL YELLOW GN YL GREEN YELLOW 20SV NOTE YL BR OR BK YL BR OR BK YL BR OR BK YL BR OR BK RD 1 3 5 21 2 4 6 22 A1 A2 RD BK WH GN YL F3 Tm Co FMo 49FMo FMo 49FMo COMP 49C ...

Page 25: ...0V 10A INTERNAL O L P FOR COMP OUTDOOR FAN MOTOR INTERNAL T P FOR FMo 52C 52F1 TM TMo MAGNETIC CONTACTOR RELAY FOR FMo MAIN TERMINAL BLOCK TERMINAL BLOCK FOR CONNECTING 63H1 63H2 3 P D T D HIGH PRESSURE SWITCH HIGH PRESSURE SWITCH FOR HEATING 3 PHASE DETECTOR 5 SEC DELAY TIMER Co D P C TH 20SV RUN CAPACITOR FOR FMo DEICER PCB THERMISTOR FOR PIPE TEMP OUTDOOR REVERSING COIL FMo 49FMo A COMP 49C B C...

Page 26: ...hile compress is off While compressor is running it takes 3 5 seconds to switch 2 Soft Dry Operation The indoor fan speed is automatically set to the low so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by Micom Control 3 Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting...

Page 27: ...emperature is higher than 42 C fan operates at seleted fan speed when it becomes lower than 39 C the fan operates at low speed 4 Heating Mode Operation Except Cooling Model The unit will operate according to the setting by the remote controller and the operation diagram is shown as following Hot Start Low Selecting Fan Speed minimum 3min Selecting fan speed minimum 10sec 1min A A minimum 10sec B 5...

Page 28: ...Self diagnosis Function CHECK will flash in the remote controller display when a problem occurs Then please contact your dealer Correct the accident point as shown in the table below before restarting operation During the normal operation CHECK won t be displayed in the remote controller Remote controller LCD Accident Point C H 0 1 Indoor room temperature thermistor error CH 02 Indoor piping therm...

Page 29: ...any heat source or steam near the unit 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles 3 Piping length and the e...

Page 30: ...il steam and flour adhere to the fan the fin of the heat exchanger resulting in heat exchange reduction spraying dis persing of water drops etc In these cases take the following actions Make sure that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner Make enough distance...

Page 31: ...erant piping and the drain piping To protect the remote controller cord from electrical noise place the cord at least 5cm away from other power cables audio equipment television set etc If the remote controller cord is secured to the wall provide a trap at the top of the cord to prevent water droplets from running Remote control box body Cord clamp accessory Lever carefully the box open using a sc...

Page 32: ...t the and directions are correct Be sure that both batteries are new Re attach the cover Slide it back into position Do not use rechargeable batteries such batteries differ from standard dry cells in shape dimensions and performance Romove the batteries from the remote controller if the air condi tioner is not going to be used for some long time REMOTE CONTROL PREPARATION OPTIONAL HOW TO MOUNT ONT...

Page 33: ...ailible from the manufacturer of its service agent The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA CAUTION 20mm GN YL NORMAL CROSS SECTIONAL AREA 1 25mm2 20mm GN YL NORMAL CROSS SECTIONAL AREA Capacity 36K BTU h 30K BTU h 42K BTU h 48K BTU h 72K BTU h 60K BTU h 1 Phase 5 5mm 3 5...

Page 34: ... a power source that is capable of supply ing the current required by the air conditioner Use a recognized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted Capacity of circuit breaker INDOOR UNIT Remove the control box cover for elec trical connection between the indoor and outdoor unit Use the cord clamper to fix...

Page 35: ...ring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again Copper tube 90 Slanted Uneven Rough Pipe Reamer Point down Flare nut Copper tube Bar Copper pipe Clamp handle Red ...

Page 36: ...g the piping connection be sure to check if there is gas leakage in indoor and outdoor connection After completing the piping connection execute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the ser vice ports of both the liquid and gas side valves Use two wrenches and tighten with regular torque Outdoor unit Liquid side Flare connection Fl...

Page 37: ...00mm HP CP model only Front of view Always lay the drain with downward inclination 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe 1 Install declination of the indoor unit is very important for the drain of the duct type air conditioner 2 Minimum thickness of the insulation for the connecting pipe...

Page 38: ...late and tape both the gas piping and liquid piping THERMAL INSULATION 5 7mm Indoor Outdoor WALL Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Local supply Hose crip for thermal insulator Local supply Union for liquid pipe Orifice Refrigerant pipe and thermal insulator Local suppl...

Page 39: ...ically The test run is started by pressing the room temperature checking button and down timer button for 3 sec onds at the same time To cancel the test run press any button After completing work be sure to measure and record trial run properties and store measured data etc Measuring items are room temperature outside temperature suction temperature blow out temperature wind velocity wind volume v...

Page 40: ...ical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be c...

Page 41: ...emperature is controlled by lower temperature between the temperature of main body and of remote controller sensor 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally TH R14H SW TH REMO MAIN 2TH OP7 R18H R17H OP6 LO STAND SW HIGH HI R03S C070 R04S R02S R01S OP3 OP2 OP1 R19H R11H R13H R12H OP5R16H OP4 R15H CO1H REMO Room Temp sensor 2TH MAIN Position 2 Posi...

Page 42: ... 4 Humidify JET AUTO AUTO SWING OPERATION FAN SPEED Program set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Indoor Unit 1 Terminal Local Supply Block Terminal Local Supply Block Terminal Local Supply Block Main PCB 1 Main PCB 2 Main PCB 16 Wired Remote Controller Slide Switch OP7 Remote Controlle...

Page 43: ...n checking the service valve of main service port must be closed this test is only for checking whether pipe connection is ok or not 5 If there is no leakage discharge R22 in piping completely into tank for retrieving Complete discharge is needed for vacuuming If leakage is found please fasten the joint more tightly 6 After closing the valve of charging hose disconnect the tank and connect the vac...

Page 44: ...such as retrieving tank opening the valve of charging hose gas side slightly and then close it tightly 3 Operate the air conditioner for 10 15 min until cycle is stabilized 4 Close the spindle of service port liquid side high pressure and wait till pressure of gas side low pressure drops below 0kgf cm2 5 After the needle of gage indicates below 0 kgf cm2 close the valve of gas side quickly and tur...

Page 45: ... 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 sufficient wait approximately 1 minute and then repeat the procedure 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be discharged If the system has been charged wi...

Page 46: ...ature difference between 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 temperature difference is larger 2 Check temperature and pressure of refrigeration cycle Notice 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be ...

Page 47: ...uide The unit does not operate Possible Trouble 1 YES NO YES Is the input voltage of transformer AC230V Check the FUSE and the wiring diagram Is the PIN 49 58 of MICOM DC5V Exchange MICOM YES NO Check the main P C B pattern NO YES Is the output voltage of IC03D DC5V NO Exchange IC03D Is the input voltage of IC03D about AC12V Check the 5V P C B pattern ...

Page 48: ...normally Check the fan motor and connector CN MOTOR YES Is the each Relay any problem YES NO YES It is normal operation Exchange IC01M Exchange Relay YES YES NO YES Is it Heating Mode Does the temperature set all right Change IC01M NO NO Adjust operation mode Adjust set temperature Is IC01M operated normally YES Check the connector CN OUT Check RY 4Way NO Is 4way valve operated Possible Trouble 3 ...

Page 49: ...ble 4 Wired remote controller does not operate NO YES YES YES Is the LCD operated normally Is the terminal of wired Remocon T2 DC12V Is the pin 39 40 of Micom DC 5V Change the wired Remocon Check the wired Remocon PCB and DC 12V pattern NO NO Check the parts of communication Connector CN Remo and terminals of wired Remocon exactly ...

Page 51: ...training and service purposes LGE Internal Use Only Exploded View and Replacement Parts List 1 Indoor Unit Model LBNS3061BL 237203 330870 W3001 137211A 237204D 268714 249941B 249941A 237201 237204B 137211B 237200 237204A 267110 354212 237204C W3300 359012 W6640 346810 ...

Page 52: ...eserved Only for training and service purposes LGE Internal Use Only Model LBNS3062BL LBNK3661BL 237203 330870 W3001A 137211A 137211B 237204D 268714 249941B 249941A 237201 237204A 237204B W3001B 237200 2671101 354212 237204C W3300 359012 W6640 346810 ...

Page 53: ...66KSB0 53 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 237203 330870 W3001 137211A 137211B 237204C 268714 249941B 249941A 237204A 237201 237200 267110 354212 359012 W6640 W3300 237204B 346810 ...

Page 54: ...rved Only for training and service purposes LGE Internal Use Only LBNS3064BL 237203 330870 W3001 137211A 137211B 237204C 268711 249941B 249941A 237204A 237201 237200 267110 354212 359012 W6640 W3300 237204B 346810 268711A 567480A Inlet air 567480B Eva in ...

Page 55: ...nd service purposes LGE Internal Use Only Model LBNK4261BL LBNK4262BL LBNK4263BL LBNK4881BL LBNK4882BL LBNK4883BL LBNM7281BL 237203 330870 W3001A 137211 237204D 268714 249941A 237201 237204A 237204B W3001B 237200 267110 354212 237204C 263230B W3300 249941B 359012 W6640 263230A ...

Page 56: ...ed Only for training and service purposes LGE Internal Use Only Model LBNH608RSS1 LBNH608RSS3 346810 137214 147901 W3001 137213A 137213B 437213A 437213B 359012 354210 552111 352118 330870 W0CZZ 268714A 268714B 249951 336610B 267110 263230B 263230A 336610A ...

Page 57: ...t reserved Only for training and service purposes LGE Internal Use Only Model LBNM9080BL LBNM9081BL LBNM1081BL 237203 330870 W3001A 137211 237204D 268714 249941A 237201 237204A 237204B W3001B 237200 267110 354212 237204C W3300 249941B 359012 W6640 ...

Page 58: ...ses LGE Internal Use Only Model LBUS3061 3062BL LBUK3660BL 437210 435301 435512 546810 552201 554031 263230 349600 435511 649950 554160 552203A 552203B 435300 137213A 430411 C S R 552202 561410 137213B W0CZZB 268711 W6640B W6920 W6640A 566001B W0CZZC 559010 349480 658740 668713 W0CZZA 566001A ...

Page 59: ...ce purposes LGE Internal Use Only Model LBUS3064BL 437210 435301 435512 546810 554031 349600 435511 649950 554160 552203A 552203B 435300 137213B 430411 C S R 552202 561410 552113 552112 137213A W0CZZC 268711A 567480 W6640B W6920 W6640A 566000 W0CZZB 559010 349480 268711B W0CZZA 447910 ...

Page 60: ...urposes LGE Internal Use Only 2 Outdoor Unit Model LBUK4260BL LBUK4262BL 435512 546810 559010 430410 135301 437210 237204 435511 554160 554160 549610 554031 649950 552201 437212 552203B 552203A W6640E 668713 268711 W6640B W6640D W6640A W6640C W6920 269140 W0CZZA W0CZZB 669200 561410 552202 ...

Page 61: ...d service purposes LGE Internal Use Only 2 Outdoor Unit Model LBUK4880BL LBUK4882BL LBUH608RSS1 C S R 435512 546810 649950 566001 W6920 430410 437212 552203A 552203B 552201 435301 559010 137213 566000 561410 554030A 554030B 552202 435511 437210 554160 W6640B 668713 W6640A 268711 ...

Page 62: ...C S R 349490 W3546 549610 435301 435511 145200 430411 W0CZZ W6640A W6640C W6640B W6920 552115D 559010 346811 W49810C 552115B 552115C 552115A W49810A W49810B 552203A W49810E 437210B 237200A 237200B W49810F 552203B 566000B 552116 566000A W4810 552201 561410 649950 566001 263230 268711 668713 548490 554160 437210A 554031A 554031C 554031D W49810D 554031B ...

Page 63: ...0 435301 435511 145200 430411 W0CZZ W6920B 268711 552114 548490B W6920A W6640C 552115D 559010 346811 W49810A 552115B 552115C 552115A W4810 W49810C 437210B 237200A 237200B W49810D 649950 437210A 554031A 554031C 554031D W49810B 554031B W6640A W6640B 668713 566001 552111 552112 55211E 561410 552116 552113 554160A W49810E 552203B 548490A 55211G 552117 552203A W52107A W52107B 554160B ...

Page 64: ...P NO MFL36016001 JANUARY 2008 ...

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