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5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM

—27—

MOTOR ASSY

CAPACITOR

COMPRESSOR

OVERLOAD PROTECTOR

DC PCB ASSEMBLY

AC PCB ASSEMBLY

THERMISTOR

PLASMA FILTER ASSY

THERMOSTAT

ROTARY SWITCH

LOCATION

NO.

DESCRIPTION

RE-

MARKS

Q'TY

PER SET

MOTOR

COMP.

CAPACITOR

DC PCB

ASSEMBLY

THERMISTOR

AIR FILTER
ASSEMBLY

AC PCB

ASSEMBLY

WIRING DIAGRAM

3854AR3563N

SWITCH

H.V.

ASSEMBLY

CN-MOTOR

CN-PWR

DC12V

ZNR01J

CN-12V

CN-HVB

RY-COMP

FUSE

250V/T2A

(115V/T2A)

-LO

-MED

-HI

CN-AC/DC

POWER

TRANS

CN-AC/DC

CN-TH1

BL
RD

OLP

YL
OR

(

)

(

Ribbed

)

(

)

(

Plain

)

GN/YL

(

)

GN/YL

(

)

(

)

COMP.

MOTOR

WH(BL)

POWER INPUT

(Plain)

GN(GN/YL)

BK(BR)

(Ribbed)

WIRING DIAGRAM

3854AR3563A

ROTARY SWITCH

OR(BR)

THERMOSTAT

CAPACITOR

P.T.C

BR(YL)

OLP

S: Service Parts
N: Non Service Parts

MODEL: WM-8031, WM-1031, WM-1231,

HBLG8003R, HBLG1003R,
L1204R, R1200E

MODEL: WR-8030, WR-1230, WR-1030,

R1200M

Содержание WM-1231

Страница 1: ...VICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE MODEL WR 8030 WM 8031 WM 1031 WR 1230 WM 1231 WR 1030 HBLG8003R HBLG1003R R1200M L1204R R1200E WEBSITE http biz LGservice com E MAIL http www LGEservice com techsup html ...

Страница 2: ... LOCATION FOR DISPLAY P C B ASM 29 6 EXPLODED VIEW 30 7 REPLACEMENT PARTS LIST 31 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc This room air conditioner was manufactured and assembled under a strict quality control system The refrigerant is charged at the factory Be sure to read the safety precautions prior to servicing the un...

Страница 3: ...ECTOR 3 WIRE WITH GROUDING ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN PIPE OR SPLASHED BY FAN SLINGER 62 28 203 32 x 1329 32 x 193 8 510 x 354 x 490 POWER SUPPLY COOLING CAPACITY Btu h INPUT W RUNNING CURRENT A E E R BTU W h OPERATING INDOOR C CONDITION OUTDOOR C REFRIGERANT R 22 CHARGE EVAPORATOR CONDENSER FAN INDOOR FAN OUTDOOR FAN SPEEDS FAN COOLING FAN MOTOR OPERATION CONTROL ROOM TEMP CONTROL ...

Страница 4: ...ff MED FAN Permits the medium fan speed operation without cooling LOW FAN Permits the low fan speed operation without cooling HIGH COOL Permits cooling with the high fan speed operation MED COOL Permits cooling with the medium fan speed operation LOW COOL Permits cooling with the low fan speed operation Built in adjustable Thermistor Washable one touch filter Compact size Reliable and efficient ro...

Страница 5: ...the sleep mode button to set the time you want the unit to turn off automatically Every time you push this button the remaining time will be set as follows 1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 0Hour 1Hour 2Hours The temperature setting will be raised by 2 F in 30 minutes and by 4 F in 1 hour to prevent overcooling during sleep 5 6 6 7 7 8 8 Precaution The Remote Control unit will not fu...

Страница 6: ...ve the housing which connects PCB and motor wire in the control box 7 Disconnect the housing which connects Plazma Air Purifier Optional 8 Remove the screw at left cover of filter case and open the cover to remove inner screw Optional 9 Remove the nut which fastens the terminal cover 10 Remove the terminal cover 11 Remove all the leads from the overload protector 12 Discharge the capacitor by plac...

Страница 7: ... pushing the tabs and remove it See Figure 6 11 Remove the clamp with a hand plier which secures the turbo fan 12 Remove the turbo fan 13 Remove the 2 screws which fasten the air guide from the base pan 14 Move the air guide backward and pull out from the base pan Move the air giude lower carefully 15 Re install the components by referring to the removal procedure above 2 2 2 FAN 1 Remove the cabi...

Страница 8: ...moval procedure above 2 3 2 COMPRESSOR 1 Remove the cabinet Refer to section 2 1 2 2 Discharge the refrigerant system using a FreonTM Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the FreonTM Leave the valve in place after servicing the system 3 Remove the overload protector Refer to section 2 3 1 4 After purging the unit complete...

Страница 9: ... Figure 12 4 Disconnect two leads from the capacitor and relay 5 Pull out the power cord 6 Re install the component by referring to the above removal procedure above Use only one ground marked hole for ground connection 7 If the supply cord of this appliance is damaged it must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord...

Страница 10: ...g tube at the condenser connections 5 Remove the condenser 6 Re install the components by referring to notes See Figure 14 2 4 2 EVAPORATOR 1 Remove the control box Refer to section 2 1 3 2 Remove the air guide upper Refer to section 2 2 1 3 Remove the 2 screws which fasten the evaporator 4 Move the evaporator sideways carefully Refer to section 2 2 1 5 After discharging the refrigerant completely...

Страница 11: ...the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in figure 16B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow the proper charge to enter the system Valve B is still closed 4 If more charg...

Страница 12: ...r proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve A COMPOUND GAUGE EVAPORATOR LOW PRESSURE SIDE COMPRESSOR CAPILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS BELOW MANIFOLD GAUGE B Figure 16A Pulling Vacuum Figure 16B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Страница 13: ...ed items are especially important checking points when the installation is finished 1 Grounding wire Green or Green and Yellow is provided in the power cord The green wire must be grounded 2 Connect to a single outlet 15A circuit or 20A circuit for Electric Heater Model 3 To avoid vibration or noise make sure the air conditioner is installed securely 4 Avoid placing furniture or draperies in front...

Страница 14: ...PURYFIER AUTO RESTART FAN FAN DRY A B D E F C H J 2 3 4 2 1 G A RIGHT SIDE HORIZONTAL LINE B 1 WINDOW WIDTH A HEIGHT B 2 GASKET 3 WALL 4 DETAILS 5 1 x 30 ROUND HEAD WOOD SCREWS A B C D E F H J K 535mm 366mm 250mm 30mm 0 25mm OVER 420mm 32 5 10mm 0 5mm 211 2 147 16 10 11 16 0 1 OVER 1617 32 11 4 3 16 3 8 0 3 16 1 2 3 4 8 9 11 7 6 5 10 13 12 NO NAME OF PARTS Q TY 1 FRAME CURTAIN 2 2 SILL SUPPORT 2 3...

Страница 15: ...NET INSTALLATION 1 Open the window Mark a line on center of the window stool or desired air conditioner location Carefully place the cabinet on the window stool and align the center mark on the front angle with the center line marked in the window stool 2 Pull the bottom window sash down behind the upper guide until it meets NOTE Do not pull the window sash down so tightly that the movement of Fra...

Страница 16: ...Attach the sill support to the cabinet track hole in relation to the selected position using 2 Type A screws in each support See Figure 23 6 The cabinet should be installed with a very slight tilt about 1 2 downward toward the outside See Figure 24 Adjust the bolt and the nut of Sill Support for balancing the cabinet 7 Attach the cabinet to the window stool by driving the screws Type B Length sixt...

Страница 17: ...DE 4 1 OUTSIDE DIMENSIONS unit mm inch 10 Slide the unit into the cabinet See Fig 26 CAUTION For security purpose reinstall screws Type A at the cabinet s sides 11 Cut the Foam Strip to the proper length and insert between the upper and lower window sash See Fig 27 12 Attach the window Locking Bracket with a type C screw See Fig 28 13 Attach the front grille to the cabinet by inserting the tabs on...

Страница 18: ... OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LINE COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LIQUID PRESSURE DROP ROOM AIR HEAT LOAD VAPOR INLET HOT DISCHARGED AIR LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID REFRIGERANT LOW PRESSURE VAPOR ROOM AIR CONITIONER EVAPORATOR COILS CONDENSER COILS CYCLE OF REFRIGERATION CAPILLARY TUBE...

Страница 19: ... gas leakage Repair gas leak Replacement of unit if the unit is beyond repair Satisfactory operation with temperature difference of inlet outlet air 44 50 F 7 10 C Check heat load increase Clean condenser Not on separate circuit Check inside gas pressure Adjusting of refrigerant charged Malfunction of compressor Replacement of compressor Check cold air circulation for smooth flow Dirty indoor coil...

Страница 20: ...tion Replacement of fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermostat setting Loose terminal connection Improper wiring Irregular motor resistance Irregular motor insulation Replacement of compressor Motor damaged Drop of power voltage Capacitor check Replacement Compressor only fails to start Defect of compressor capacitor Check of power sou...

Страница 21: ...ss y Is the connection between AC and DC all right Is the reset circuit all right The No 14 of Micom is 5V Check the Fuse Check the wiring diagram Check the Main PCB pattern Exchange the Trans Exchange D02D D05D Exchange IC01D Exchange IC02D Exchange IC01A C02A Connect connector exactly Check the PCB pattern NO NO NO NO NO NO NO YES YES YES YES YES YES YES NO YES ELECTRICAL PARTS TROUBLESHOOTING G...

Страница 22: ...oltage No 10 of IC01M 0V Exchange IC01M Select the setting Temp to lower Number Wait 3 Minutes Is the Unit for 3 minutes delay Exchange MAIN PCB Ass y Is the voltage N0 9 of IC01M DC 12V Check the RY COMP Check the wiring Diagram NO NO NO YES YES YES YES Is the wire connection of RY COMP all right Check the RY COMP Connect LEAD Wire to RY COMP again NO YES NO ...

Страница 23: ...ed or RY Lo Check the wiring diagram NO NO YES YES Check the PCB pattern Is the voltage of Battery about over 2 3V Exchange Receiver Ass y Is the connection of CN AC DC all right Is the voltage No 10 of CN AC DC on DC PCB Ass y DC 5V Exchange the battery Check the PCB pattern Connect connector to CN AC DC exactly NO NO NO YES YES YES Possible Trouble 5 Remote controller does not operate ...

Страница 24: ... NO YES YES YES Is the IC01G all right Is the connection of CN AC DC all right Exchange the DC PCB Ass y Exchange IC01G Exchange IC03G Q01G Q04G for Delux Model Connect connector to CN AC DC exactly Does the IC03G Q01G Q04G for Delux Model operate normally on DC PCB Ass y ...

Страница 25: ... If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor If cracked out of balance or partially missing replace it If cracked out of balance or partially missing replace it Tighten it If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace mot...

Страница 26: ...ns or brush Clean the interior base before reassembling If condenser fins are closed over a large area on the coil surface head pressures will increase causing the compressor to overload Straighten the fins or replace the coil Test capacitor Check the terminals If loose repair or replace Check the system for a restriction If restricted clean of replace Close if open Determine if the unit is proper...

Страница 27: ...CN MOTOR CN PWR DC12V ZNR01J CN 12V CN HVB RY COMP 3 4 FUSE 250V T2A 115V T2A RY LOW RY MED RY HI CN AC DC POWER TRANS CN AC DC CN TH1 BL RD RD BK BL R S C OLP YL OR YL F C H WH BL Ribbed BK BR Plain GN YL GN GN YL GN BK RD OR BR 1 5 7 6 8 4 2 3 COMP MOTOR WH BL POWER INPUT Plain GN GN YL BK BR Ribbed WIRING DIAGRAM 3854AR3563A BL BL RD BK R C S YL YL RD BK BL RD ROTARY SWITCH BK BL L 7 1 8 6 4 2 ...

Страница 28: ...cc R01L 5 4 12V 5V 10V 220 C02L ULN2004A 16 15 14 3 6 680pF C01L R01P 20K 50V 3 Digit0 5 10 a f a b Digit1 a 3 9 b 8 c d f d e d c 7 e 4 f 1 g e 6 g g COOL DEFROST DRY HEAT TIMER FAN E SAVER R02G R03G R04G R01G 680 680 680 680 R05G R06G R07G 12V 680 680 680 IC01G 15 14 13 4 3 2 16 1 12 11 10 7 6 5 9 8 ULN2004A 10K 5V 5V R12F R01E 1K 5V C06D BZ01E PKM13EPY 4002 C05D 50V 10V 220 0 01 10 12V 11 12 CN...

Страница 29: ...D IC01D HEAT SINK QIC02DT J5 Q01T CN TELE CN TH2 CN PWR CN MOTOR ZNR01J CN 4WAY C01J R01J E03J E04J POWER TRANS FUSE 250V T2A RY COMP E05J E02J J8 E01J J6 J2 J3 RY HI PCB 6870A90068A ASSEMBLY 6871A20167 RY MED RY LOW RY 4WAY J7 J4 J1 D01T C02T Q02T CN CON CN 12V CN AC DC 5 4 COMPONENTS LOCATION FOR DC P C B ASM MODEL WM 8031 WM 1031 WM 1231 HBLG8003R HBLG1003R L1204R R1200E ...

Страница 30: ...352390 1 W0CZZ 135500 147581 147582 559011 349480 352113 352113 W48602 148000 354210 152312 152302 264110 249950 149410 266003 269310 130410 550140 35211A 554160 567502 135312 135313 554030 352115 552111 268714 W0CZZ 135500 249950 263230 268712 238310 264110 237200 731373 ...

Страница 31: ...0167C 6871A20167C R 346811 MOTOR ASSEMBLY SINGLE 4681A20069M 4681A20069G 4681A20069H 4681A20069P 4681A20069J R 349001 DAMPER VENTILATION 4900A20003A 4900A20003A 4900A20003A 4900A20002A 4900A20002A R 349480 ORIFICE 4948A10014A 4948A10014A 4948A10014A 4948A10015A 4948A10015A R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A20708B 5211A20708B 5211A10074J 5211A10074K 5211A10074K R 352115 TUBE ASSEMBLY EVA...

Страница 32: ...0324A 6871A20324A 6871A20167C R 346811 MOTOR ASSEMBLY SINGLE 4681A20069G 4681A20069H 4681A20069N 4681A20069J R 349001 DAMPER VENTILATION 4900A20003A 4900A20003A 4900A20003A 4900A20002A R 349480 ORIFICE 4948A10014A 4948A10014A 4948A10014A 4948A10015A R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A20708B 5211A10074J 5211A10074J 5211A10074K R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A20559K 5211A20470F 5...

Страница 33: ...MEMO 33 ...

Страница 34: ...MEMO 34 ...

Страница 35: ...P No 3828A20306A June 2004 Printed in Korea ...

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