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Service Manual - Appliance Factory Parts

1. BOF ter Ro 1 11 1 6 DISP1 gt 10 JWO2 C JWO8 e 1 5 Jwo4 lt u C22L JWO3 DIGIT SW1 Jwog PWB ASSY 6871A20118 W JW10 RO1F Li Ll LL De A O C e 2 gt I z I gt 0 Vv 0 N 0 Cran SPEED TEMP DOW TEMP UP AUTO SWING ON OFF Ke PWB P No 6870A90004D e MODEL LWN2120BHG BHP QHG LWN2123BHG o PWB ASM UN C22L N TIMER O J02 106 gt 2 E 17 COOL LED2 LEDI Zs u o o 2 oe JW ES sees DS 820 LED4 5 y DEFROST DRY ETETE IWH eee lt e o oo o o FAN SPEED DOIF TEMP TEMP UP AUTO SWING SW1 DOWN SW7 SW8 SW6 C PWB M0 6870 90070C SS 93 5 EXPLODED VIEW COOLING MODEL AAA 1 6 34 HEATING MODEL 6 REPLACEMENT PARTS LIST en PART NO NO DESCRIPTION LWN1860 LWM1860 LWM1860 LWM1830 LWM1860 LWN2123 REMARK BCG BCL BCG BCL BCP BCG BCL BAG BCG 130410 BASE ASSEMBLY SINGLE 3041A30001B 3041A30002F 30
2. 1 5 2 HEAT PUMP MODEL CAUTION When the air conditioner has been performing its cooling operation and is turned off or set to the fan position wait at least 3 minutes before resetting to the cooling operation again Thermostat Operation Auto Swing O Win VI Heater Wait Three Minutes Before Restarting THERMOSTAT OPERATION Turn the thermostat control to the desired setting The OFF O Turns the air conditioner off control position is a normal setting for average LOW FAN Permits the low fan speed conditions You can change this setting if necessary in operation without cooling heating accordance with your temperature PES LOW COOL Permits cooling with the low fan The thermostat automatically controls cooling or speed operation heating but the fan runs continuously whenever the air HIGH COOL 3 Permits cooling with the high fan conditioner is in operation If the room is too warm turn the thermostat control clockwise If the room is too cool turn the thermostat control counterclockwise speed operation LOW HEAT x Permits heating with the low fan speed operation HIGH HEAT 3 Permits heating with the high fan speed operation HEATER LAMP When the unit sets heating operation condition the green lamp is lighted When the frost settles on the heat exchanger of the outside defrosting is made automatically and the green l
3. EXTERNAL VACUUM PUMP Sen CHARGING S 2 7 CYLINDER Figure 18A Pulling Vacuum Figure 18B Charging 17 3 TROUBLESHOOTING GUIDE 3 1 OUTSIDE DIMENSIONS 675 770 660 428 3 2 PIPING SYSTEM CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR BLOWER EVAPORATOR COIL REFRIGERANT FLOW Following is a brief description of the important components and their functions in the refrigeration system Refer to Fig 19 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS SUCTION LIME VAPOR INLET COMPLETE LIQUID BOIL POINT COOL LOW PRESSURE VAPOR HOT DISCHARGED COOLED AH gt z 7 2 ROOM AIR HEAT LOAD m OUTSIDE COOLING FOR REFRIGERANT MOTOR PASS THROUGH 6 9 COMPRESSOR 7 oL LIQUID PRESSURE LIQUID OUTLET DROP EZZA HIGH PRESSURE VAPOR CAPILLARY TUBE a PEFRiGERANT 21 Low PRESSURE VAPOR Figure 19 LIQUID REFRIGE
4. Fails to Start Check of power source Check of control switch setting Only compressor fails to start Drop of power voltage Defect of compressor capacitor Check capacitor Replacement r Check of circuit breaker and fuse Gas of feeler bulb of thermostat Check of control switch Y Only fan fails to start Y Improper wiring Improper thermostat setting Y Defect of fan motor lt Loose terminal connection capacitor Improper wiring Irregular motor resistance Q Irregular motor insulation Q Y Replacement of fan motor Irregular motor resistance Q Y Irregular motor insulation 0 Replacement of compressor Motor damaged 20 Regular but fails to start Replacement of compressor locking of rotor metal Possible Trouble 1 5 the Trans output power M8 The unit does not operate Electrical Parts Troubleshooting Guide Micom Models AC 220V pes 5 the Trans output power about AC 14V NO Is shorted the Trans output Check the Fuse Check the wiring dia
5. BTU h 24 000 INPUT W 2 560 HEATING RUNNING CURRENT A 12 3 E E R BTU W h 9 4 COOLING INDOOR C 27 DB 19 WB OPERATING OUTDOOR C 35 DB 24 WB TEMPERA HEATING INDOOR C 20 DB 15 WB OUTDOOR 7 DB 6 WB REFRIGERANT R 22 CHARGE 1200g 42 3 Oz EVAPORATOR 3ROW 15STACKS LOUVERED FIN TYPE CONDENSER 2ROW 16STACKS LOUVERED FIN TYPE FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING HEATING 1 2 2 2 2 2 1 2 2 FAN MOTOR 6 POLES OPERATION CONTROL ROTARY SWITCH WIRELESS REMOCON ROTARY SWITCH ROOM TEMP CONTROL THERMOSTAT THERMISTOR THERMOSTAT AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT 8 LEFT HORIZONTAL LOUVER UP 8 DOWN dry bulb WB wet bulb CONSTRUCTION SLIDE IN OUT CHASSIS PROTECTOR COMPRESSOR OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 1 8m 7 3 WIRE WITH GROUDING ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PAN OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 147 7 67 OUTSIDE DIMENSION inch 23 x 162732 x 305 6 W X HX D mm 660 x 428 x 770 1 4 FEATURES Designed for cooling only Powerful and guiet cooling Slide in and slide out chassis for the simple installation and service Reversible inlet grille 1 5 CONTROL LOCATIONS 1 5 1 COOLING ONLY MODEL VENTILATION The ven
6. 5231AR6159D 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20005D 4995A20005V Y 4995A20057Q 4995A20005P 4995200570 4995A20088G R 264110 POWER CORD ASSEMBLY 3H01307C 3H03555B 3H01307D 2H00677Q 3H01307D 3H01307C R 266002 SWITCH ROCKER 2H01316C 27013160 2H01316C 20018160 2HO1316C R 266003 SWITCH ROTARY 2H00598E 2H00598E 2H00598E 2H00598E 2H00598E 2H00598E R 269310 THERMOSTAT ASSEMBLY 2 01109 2H01109M 2HO1109M 2HOt100L 2HO1109M 2 01109 R 346811 MOTOR ASSEMBLY SINGLE 4681AR6033A 4681AR6033H 4681AR6033H 4681AR6033B 4681AR6033H 4681AR6033F R 349001 DAMPER VENTILATION 4900AR7256A 4900AR7256A 4900AR7256A 4900AR7256A 4900AR7256A 4900AR7265A R 349480 ORIFICE 4948AR7241A 4948AR7241A 4948AR7241A 4948 7241 4948AR7241A 4948AR7241A R 349600 MOTOR MOUNT 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A R 352111 TUBE ASSEMBLY CONNECTION 5211AR7050C 5211AR7059A 5211AR7059W 5211AR7050E 5211AR7059A 5211AR7059C R 352113 TUBE ASSEMBLY DISCHARGE 5211A30003A 5211A30066B 5211A30066B 5211A30066A 52114300668 5211A30131A R 35211A TUBE ASSEMBLY SUCTION 5211A30002A 5211A30154A 5211A30154A 5211A30065A 5211A30154A 5211A301304 R 352390 AIR GUIDE ASSEMBLY 5239A20001A 5239A20001A 5239A20001A 5239A20001D 5239A20001A 5239A20001A R 354210 EVAPORATOR ASSEMBLY 5421A20009A 5421200094 54214200093 5421A20017B 5421A
7. 13 2 3 5 THERMOSTAT a id 13 2 3 6 ROTARY SWITCH aa 14 2 3 7 SYNCHRONOUS 14 2 4 REFRIGERATION 15 2 4 1 CONDENSFER des ted 15 2 4 2 EVAPORATOR da 15 2 4 3 CAPILLARY TUBE aaa 15 3 TROUBLESHOOTING GUIDE 3 1 OUTSIDE 18 3 2 PIPING SYSTEM visas 18 3 3 TROUBLESHOOTING QUIDE 19 4 SCHEMATIC DIAGRAM 4 1 CIRCUIT DIAGRAM een 29 4 2 ELECTROING CONTROL DEVICE 31 4 3 COMPONENTS LOCATION OF MAIN P C B 32 4 4 COMPONENTS LOCATION FOR DISPLAY P C B 4510 33 5 EXPLODED VI VV 34 6 REPLACEMENT PARTS LIST 36 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 unit 1 1 SAFETY PRECAUTIONS 1 When servicing the unit set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord 2 Observe the original lead dress If a short circuit is found replace all parts which have been overheated or damaged by the short circuit 3 After servicing the unit make an insulation resistance test to protec
8. Fan motor runs intermittently Revolves on overload Check voltage See limits on this page If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely 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 Fan motor noise Grommets Check grommets if worn or missing replace them Fan If cracked out of balance or partially missing replace it Blower If cracked out of balance or partially missing replace it Loose set screw Tighten it Worn bearings If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace motor COMPLAINT CAUSE REMEDY Compressor will not run but fan motor runs Voltage Check voltage See the limits on the preceding page If not within limits call an electrician Wiring Check the wire connections if loose repair or replace the terminal If wires are off refer to wiring diagram for identification and replace Check wire locations If not per wiring diagram correct Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if circuit is open Thermostat Check the position of knob If not at the coldest setting advance the knob to this setting and re
9. POWER INPUT des THERMISTOR o ROTARY SWITCH ROTARY SW Plain X Ribbed L RD 25 GN YL 0 O H BK y BK M BL BK 2 ONE E MOTOR OR BR ay YL OR BR S ry 2 SYNC M i BK 1 OO BKIRD BKIRD ore M Gua 1 11 1 THERMOSTAT YL REVERSING COIL 2 3 3854 2206 900060 3854A90019A pa s 5 DEICER ASSY K BR 29 MODEL LWM1860GCG GCL LWN1860GCG GCL LWN2260GCG GCL LWM1820GCG GCL LWM1821GCG GCL LWN2120GCG GCL LWM1830GCG GCL LWN2130GCG GCL POWER INPUT Plain GN GN YL eN THERMISTOR DISPLAY P W B ASM MAIN P W B ASM WIRING DIAGRAM 3854AR2206Z MODEL LWM1860QAG MODEL LWN2120QHG POWER INPUT ge B BR WEBI Ag A BR Ribbed Plain Ribbed Plain GN YL GN N GN YL BL THERMISTOR THERMISTOR MOTOR OR BR
10. Q14G Possible Trouble 8 The function of Auto Restart does not operate Is the Knob of SW1 NO set to left position pes Is the voltage No 1 of NO Set the Knob of SW1 to left position CN DISP1 of Main PCB Ass y DC 5V YES Reference to OWNER S MANUAL 25 Check the SW1 Check the pattern of Main 8 Display PCB COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if none Power supply cord Check voltage to rotary switch If none check power supply cord Replace cord if circuit is open Rotary switch Check switch continuity Refer to wiring diagram for terminal identification Replace switch if defective Wire disconnected or connection loose Connect wire Refer to wiring diagram for terminal identification Repair or replace loose terminal Capacitor Discharge capacitor before testing Test capacitor Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud or blower wheel hitting scroll Realign assembly Units using slinger ring condenser fans must have 1 4 to 5 16 inch clearance to the base If it is hitting the base shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor
11. X OR BR YL DISPLAY P W B ASSY WYL GN CAPACITOR CAPACITOR 9 lt 2 DISPLAY P W B ASM MAIN P W B ASSY OR BR CN SYNC CN DISP2 CN DISP1 RY SYNC TRANS gt ZNR RY SYNC RY COMP 4 3 jn MAIN P W B ASM 2500 115V T2A ON AWAY ZNR RY COMP Mid 4 FORMER 3 FUSE 250V T2A REVERSING COIL WIRING DIAGRAM 3854A20003J WIRING DIAGRAM 3854AR2330W 30 4 2 CONTROL DEVICE MODEL Models icom 9 SNVUL 04 dWO2 AM 63 43MOd ASZ ASZ Asc 00X 89 15 VZL AST1 VZ1 A0SZ gy 4 IS 28 18 81 as 93m a i 2 I 90 0 4 100 q R JA 14510 018084 912184 C od MM
12. 1 2 2 Remove the cover control and disconnect a wire housing in control box Refer to section 2 1 3 3 Remove the blower Refer to section 2 2 2 Remove the fan Refer to section 2 2 3 5 Remove the 4 screws which fasten the motor See Fig 9 Remove the motor 7 Re install the components by referring to the removal procedure above gt C Figure 9 2 3 2 COMPRESSOR 1 Remove the cabinet Refer to section 2 1 2 2 Discharge the refrigerant system using Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system 3 Disconnect the 3 leads from the compressor 4 After purging the unit completely unbrace the suction and discharge tubes at the compressor connections 5 Remove the 3 nuts and the 3 washers which fasten the compressor Figure 10 6 Remove the compressor See Fig 10 7 Re instill the components by referring to the removal procedure above 12 2 3 3 CAPACITOR 1 2 3 Remove the screw and knobs which fasten the Remove a screw and unfold the control box Remove the screw and the clamp which fastens Disconnect all the leads of capacitor terminals Re install the components by referring to the Remove the control box Refer to section 2 1 3 display panel Disconnect the 2 leads from the rocker switch and re
13. 130910 CABINET ASSEMBLY 3061AR6056B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6056B R 135303 GRILLE INLET 3530AR1604A R 135312 GRILLE ASSEMBLY FRONT 3531A20005L R 135500 COVER CONTROL BOX 3550AR7245A 3550AR7245A 3550AR7245A 355072454 3550AR7245A 135510 COVER ASSEMBLY CONTROL 3551A30015A R 137215 PANEL ASSEMBLY CONTROL 3721A20002A 3721A20002E 3721A20002B 3721A20002A R 146812 MOTOR ASSEMBLY SYNC 2 01102 2 1102 2 01102 2H01102A 201102 R 147581 1 LOUVER HORIZONTAL 4758A7264A 4758A7264A 4758A7264A 4758A7264A 4758A7264A R 147581 2 LOUVER HORIZONTAL 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A R 147582 LOUVER VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R 148000 BRACE 4800AR7271A 4800AR7272A 4800AR7272A 4800AR7271A R 149410 KNOB ASSEMBLY 4941 30001 R 149980 SHROUD 4998AR1597A 4998 1597 4998AR1597A 4998AR1597A 4998AR1597A R 152302 FILTER ASSEMBLY A C 5231AR6150A 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20005B C 4995200050 4995200056 4995200050 4995A20065J R 264110 POWER CORD ASSEMBLY 3H01307C 3H01307C 3H01307C 2H00677Q 2H00677Q R 266002 SWITCH ROCKER 2H01316C 2H01316C 2H01316C 2H01316C 2 01316 R 266003 SWITCH ROTARY 2H00598E 2 00598 2 00598 2 00598 2 005
14. 152302 FILTER ASSEMBLY A C 5231AR6159A 5231AR6159A 5231AR6159A R 237200 PANEL CONTROL 3720AR6163A 8 238310 ESCUTCHEON 3831A10002H 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20100A 4995A20088K 4995A20088M R 261704 TRANSFORMER POWER 6170A20006A R 263230 THERMISTOR ASSEMBLY 6323A20003D R 264110 POWER CORD ASSEMBLY 3H01307C 2H00677Q 2H00677Q R 266002 SWITCH ROCKER 2H01316C R 266003 SWITCH ROTARY 2H00598E 2H00598E R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20034N 268712 PWB PCB ASSEMBLY DISPLAY 6871A20118C R 268714 PWB PCB ASSEMBLY MAIN 6871A10013A 269310 THERMOSTAT ASSEMBLY 2H01109L 2H01109L R 346811 MOTOR ASSEMBLY SINGLE 4681AR6033H 4681AR6033U 4681AR6033U R 349001 DAMPER VENTILATION 4900AR7265A 4900AR7265A 4900AR7265A R 349480 ORIFICE 4948AR7241A 4948AR7241A 4948AR7241A R 349600 MOUNT MOTOR 4960AR1596A 4960AR1596A 4960AR1596A R 352111 TUBE ASSEMBLY CONNECTOR 5211AR7059A 5211AR7059C 5211AR7059C R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A30066B 5211A30066L 5211A30066L R W52106 1 TUBE EVAPORATOR 5210A30009G 5210A30144J 5210A30144J R W52106 2 TUBE EVAPORATOR 5210A30009H 5210A30144K 5210A30144K R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A30154A 5211A30292D 5211A30292D R 352390 AIR GUIDE ASSEMBLY 5239A20001A 5239A20001C 5239A20001J R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20009A 5421A20017G 5421A20017G R 359012 FAN ASSEMBLY BLOWER 5834AR1599A 5834AR1599B 583
15. 51 15 59 jo yun aul 914108 S310N 1 31 4 9 COMPONENTS LOCATION MAIN P C B ASM MODEL LWM1860GCG GCL GAG LWN1860GCG GCL LWN22600CG QCL LWM1820GCG GCL LWM1821GCG GCL LWN2120GCG GCL LWM1830GCG GCL LWN2130QCG QCL 056018 D 10 PWB ASS Y 6871410013 RY SYNC PWB 6870A90041A SETA BUZZER CN DISP2 o CN SYNC CN WORK POWER TRANS coza 1 01 eye Har 1 T O ER C 9 PWB 6870A90069A Coty Ho gt 9 9 CN DISP PWB ASS Y 0070 419 JM e 10020 920 17 PWB 55 8 0050 0030 Of rrry IL II POWER TRANS 32 4 4 COMPONENTS LOCATION FOR DISPLAY P C B ASM MODEL LWM1860QCG QCL QAG LWM1860GCG GCL LWN2260QCG QCL LWM1820QCG QCL LWM1821QCG QCL LWN2120QCG QCL LWM1830QCG QCL LWN2130QCG QCL
16. NO 2 or 3 NO of ICO1M DC 5V Is the voltage NO 14 or 15 NO e Exchange ICO1M of ICO1M OV YES Check the or RY Lo Check the wiring diagram Possible Trouble 5 Auto Swing does not operate e Exchange ICO1M 5 the voltage NO 6 NO of ICO1M DC 5V pes 5 the voltage NO 11 NO Exchange Micom of ICO1M OV pes Check the RY SYNC Check the connectionn of CN SYNC Check the PCB pattern 23 Exchange ICO1M Possible Trouble 6 Remote controller does not operate 5 the voltage of Battery NO Exchange the battery about over 2 3V 5 the voltage No 10 NO Check the PCB pattern of CN DISP2 on Main PCB Ass y DC 5V NO Is the connection of Connect connector to CN DISP2 all right Exchange Receiver Ass y Possible Trouble 7 It displays abnormally on display PCB Ass y CN DISP2 exactly Exchange IC01G Connect connector NO Is the ICO1G all right 15 the connection of NO CN DISP2 all right pe Does the Q12G NO to CN DISP2 exactly Exchange Q12G Q13G Q14G operate normally on main PCB Ass y Exchange the display PCB Ass Q13G
17. RING FAN SPEEDS FAN COOLING 2 3 FAN MOTOR 6 POLES OPERATION CONTROL ROTARY SWITCH ROOM TEMP CONTROL THERMOSTAT VERTICAL LOUVER RIGHT 8 LEFT AIR DIRECTION CONTROL HORIZONTAL LOUVER UP 8 DOWN CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR INTERNAL OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 1 6m 3 WIRE WITH GROUNDING POWER CORD CORD CONNECTED TYPE ATTACHMENT PLUG OPTION DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 132 60 143 65 148 67 121 55 148 67 121 55 143 65 OUTSIDE DIMENSION inch 26107 904 281 ats 26x 10713 26x 162x285 210218 WxHxD mm 660x428x675 660 x 428 x 77 660 x 428 x 675 660 x 428 x 770 660 x 428 x 675 660 x 428 x 70 1 3 2 FOR LWM1860QCG QCL QAG LWN1860QCG QCL LWN2260QCG QCL LWM1820QCG QCL LWM1821QCG QCL LWN2120QCG QCL LWM1830QCG QCL LWN2130QCG QCL MODELS LWN1860 LWN2260 LWM1820 1 LWN2120 LWM1830 LWN2130 REMARK ITEMS 61 QAG QCG QCL GCG GCL GCG GCL 000 001 GCG GCL GCG GCL POWER SUPPLY 10 220 240V 50Hz 10 220V 60Hz COOLING CAPACITY 17 500 18 000 21 000 22 000 0 21 000 18 000 21 000 INPUT W 2 035 2 100 2 190 2 250 2 810 2 890 0 2 440 2 000 2 470 RUNNING CURRENT A 9 3 8 6 10 610 1 8 9 8 9 0 15 9 0 1
18. as previous setting operation when power returns AUTO SWING BUTTON Control the horizontal air direcion by air swing system 9 SIGNAL RECEIVER REMOTE CONTROL an Cool 0 0 Defrost Heat 0 0 O Fan Speed Precaution The Remote Control unit will not function properly if strong light strikes the sensor window the air conditioner it there are obstacles between the Remote Control unit and the air conditioner POWER BUTTON Operation starts when this button is pressed and stops when you press the button again 4 OPERATION MODE SELECTION BUTTON Select Cooling Heating Fan or Dehumidification Dry mode with this button ON OFF TIMER BUTTON Set the time of starting and stopping operation The timer is set by 1 hour FAN SPEED SELECTOR Select the fan speed Cooling Model High F3 gt Low F1 gt Med F2 gt High F3 Heating Model High F2 gt Low F1 gt High F2 5 ROOM TEMPERATURE SETTING BUTTON O Control the room temperature within a range of 16 C to 30 C The unit takes an average of 30 minutes to adjust the room temperature by 1 C 1 8 Temperature increases only by 2 C and no longer increase thereafter AUTO SWING The vertical louver swings horizontally by the automatic system and stops when you press the button again SIGNAL RECEIVER 2 DISASSEMBLY INSTRUCTIONS Before t
19. 0A30144E 5210A30144E 5210A30144E R W52106 2 TUBE EVAPORATOR 5210A30144F 5210 30144 5210A30144F 5210A30144F R 352390 AIR GUIDE ASSEMBLY 5239A20001B 5239A20001B 5239A20001B 8 R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20017E 5421A20017E 5421A20017E 5421A20017E R 359012 FAN ASSEMBLY BLOWER 5834AR1599B 5834AR1599B 5834AR1599B 5834AR1599B R 550140 ISOLATOR COMP 4H01765A 4H01765A 4H01765A 4H01765A R 552101 TUBE CAPILLARY 3H03750H 3H03750H 3H03750H 3H03750H R 554031 CONDENSER ASSEMBLY BENT 5403 20013 5403 20013 5403 20013 5403A20013R 554160 COMPRESSOR ASSEMBLY 1H00404D 1H00404D 1H00404D 1H00404D R 559010 FAN ASSEMBLY AXIAL 5900AR1330A 5900AR1330A 5900AR1330A 5900AR1330A R WOCZZ CAPACITOR DRAWING 6120AR2194F 6120AR2194F 6120AR2194F 6120AR2194F R W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C 3H02932C R 552116 TUBE ASSY REVERSING 5211 30180 5211A30180A 5211A30180A 5211A30180A R 552202 VALVE REVERSING 3A02027A 02027 02027 3A02027A R 553000 HEATER SUMP 2A00093L 2A00093L 2A00093L 2A00093L R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Z 3A02028Z 3A02028Z 3A02028Z R 40 41 42 LG Electronics Inc October 2006 P No 3828A30001N Printed in Korea
20. 0AR1598A 5900AR1330A 5900AR1330A 5900AR1508A 5900AR1330A R WOCZZ CAPACITOR 6120AR2194L 6120AR2194P 6120AR2194F 6120AR2194D 6120 2194 R W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C R W52106 1 TUBE EVAPORATOR 5210A30144B 5210A30009 5210A30144B 5210A30009D 5210 301448 R W52106 2 TUBE EVAPORATOR 5210A30144A 5210A30009K 5210A30144A 5210A30009C 5210A30144A 37 LOCATION NO DESCRIPTION LWN1860 LWN2260 LWM1860 LWM1820 1 LWN2120 LWM1830 LWN2130 REMARK QCG QCL GCG OCL QCG QCL ACG ACL ACG ACL ACG ACL ACGIACL 135312 FRONT GRILLE ASS Y 3531A20005A 3531AR2632D R 135313 INLET GRILLE 3530AR1604A 5236AR1329A R 152302 AIR FILTER ASSY 5231AR6159A 5230AR1327A R 147581 1 LOUVER HORIZONTAL 4758AR7264A R 147581 2 LOUVER HORIZONTAL 4758AR7278A R 554160 COMPRESSOR ASS Y 5417AR2767F 5417AR2767G 5417AR6146E 5417AR2652B 2HO1277W 5417AR2652A 2H02564H 130910 CABINET ASS Y 3091AR60568 3091AR60578 30914R60568 R 147582 LOUVER VERTICAL 4758AR6157A R 349001 DAMPER 4900AR7265A R 349600 MOTOR MOUNT 4960AR1596A 4960AR2895A 4960AR4596A R 346811 MOTOR ASS Y 4681AR6033A 4681A20011A 4681AR6033H 4681AR6033C 4681
21. 2 REFRIGERANT R 22 CHARGE g 690 610 600 630 700 740 1 090 OPERATING INDOOR C 27 DB 19 WB 26 55 DB 19 35 WB TEMPERATURE OUTDOOR C 35 DB 24 WB 34 85 DB 23 75 WB EVAPORATOR 2 ROW 15 STACKS 3 ROW 15 STACKS 2ROW 16 STACKS CONDENSER 2 ROW 19 STACKS L BENDED TYPE LBENDNG TYPE FAN INDOOR BLOWER FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 20 MOTOR 6 POLES OPERATION CONTROL WIRELESS REMOCON ROOM TEMP CONTROL THERMISTOR VERTICAL LOUVER RIGHT amp LEFT AIR DIRECTION CONTROL HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR INTERNAL OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 1 6m 3 WIRE WITH GROUNDING POWER CORD CORD CONNECTED TYPE ATTACHMENT PLUG OPTION DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 132 60 143 65 148 67 121 55 148 67 121 55 143 65 OUTSIDE DIMENSION inch 26 X 1627 X 30516 26 X 167 X 20116 26 X 162 X 30516 26 x 162122 X 2696 26 x 162732 X 30s WxHxD mm 600 428 x 675 660 x 428 x 770 660 x 428 x 675 660 x 428 x 770 660 x 428 x 675 660 x 428 x 770 1 3 3 FOR 1 2120 LWN2123BHG MODELS ITEMS LWN2120BHG BHP LWN2120GHG LWN2123BHG POWER SUPPLY 19 220V 60Hz CAPACITY BTU H 24 000 INPUT W 2 560 COOLING RUNNING CURRENT A 12 3 E E R BTU W h
22. 20009A 5421A20017A R 359012 FAN ASSEMBLY BLOWER 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1509A 5834AR1599B 550140 ISOLATOR COMP E 4022U LO05A 4022U L005A 4 01765 R 552101 TUBE CAPILLARY 5425AR3147A 3H03750L 3H03750S 5425AR3147X R 552102 TUBE CAPILLARY BEND 5211A200200 5211420020 554031 CONDENSER ASSEMBLY BENT 5403A20004B 5403A20004F 5403A20004F 5403A20004F 5403A20004K 5403A20004M R 554160 COMPRESSOR 5416AR1411D 5416AR1581C 5416AR1581C 5417AR2256E 5416AR1581C 1 004040 R 559010 ASSEMBLY AXIAL 5900AR1598A 5900AR1330A 5900AR1330A 5900AR1380A 5900AR1330A 5900AR1330A R WOCZZ CAPACITOR 6120AR2194F 6120AR2194F 6120AR2194F 6120AR2194D 6120AR2194F 6120AR2194F R W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C W52106 1 TUBE EVAPORATOR 5210A30009B 5210A30009G 5210A30009G 5210A30009D 5210A30009G 5210A30144A R W52106 2 TUBE EVAPORATOR 5210A30009A 5210A30009H 5210A30009H 5210A30009C 5210A30009H 5210A30144B R 36 LOCATION PARTNO NO DESCRIPTION LWN2260 LWM1820 1 LWN2120 LWN2130 LWN2131 REMARK BCG BCL BCG BCL BCG BCL BCG BCL BAG 130410 BASE ASSEMBLY SINGLE 3041A30002D 3041A30002B 3041A30001K 3041A30001H 3041A30001H R
23. 41A30002F 3041A30002B 3041A30002F 3041A30001K R 130910 CABINET ASSEMBLY 3061AR6056B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6057B 3091AR6056B R 135303 GRILLE INLET S530AR1604A 3530AR1604D 135312 GRILLE ASSEMBLY FRONT SINGLE 0101054851000 3531A20005K 3531A20005L 3531A20005V 135313 GRILLE INLET 3531A20005A 135500 COVER CONTROL BOX 3550AR7245A 3550AR7245A 8550AR7245A R 185510 COVER ASSEMBLY CONTROL 3551 30015 9551300154 R 137215 PANEL ASSEMBLY CONTROL 3721A20002A 3721A20002A 3721A20002A 3721A20002B 3721A20002A 3721A20035G R 146812 MOTOR ASSEMBLY SYNC 2H01102A 2 01102 2HO1102A 201102 200110 2H01102A R 147581 1 LOUVER HORIZONTAL 4758A7264A 4758A7264A 4758A7264A 4758A7264A 4758A7264A 4756AR7264F 147581 2 LOUVER HORIZONTAL 4758AR7278A 475807278 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278F R 147582 LOUVER VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R 148000 4800AR7271A 4800AR7272A 4800AR7272A 4800AR7271A 4800AR7272A 4800 7271 R 149410 KNOB ASSEMBLY 4941 30001 4941 4941A30001K 149980 SHROUD 4998 1597 4998AR1597A 4998AR1597A 4998 1597 4908AR1597A 4998AR1597A R 152302 FILTER ASSEMBLY A C
24. 448L 3H03750L 5425AR3147T 5425AR3147X 380708 5424AR3411P 6711A20018M 267110 REMOTE CONTROLLER ASSEMBLY 6711AR2700B 6711A20018M 671 1AR2700L R 6711AR2700B 130410 BASE ASSEMBLY SINGLE 3041A30001B 3041A30001D 3041A30002F 30414300028 3041A30001K 30414300028 3041A30001H R 38 PART DESCRIPTION REMARK NO LWM1860QAG LWM2130AAG LWM2130BAG 130410 BASE ASSEMBLY SINGLE 3041A30002F 3041A30002B 3041A30002B R 190910 CABINET ASSEMBLY SINGLE 3091AR6057B 3091AR6057B 3091AR6057B R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20005L 3531A20005L 3531A20005L R 135313 GRILLE INLET 3530AR1604A 3530AR1604A 3530AR1604A R 135500 COVER 3550 30048 3550 30048 135510 COVER ASSEMBLY CONTROL SINGLE 3551 30015 3551A30015A 3551A30015A R 137215 PANEL ASSEMBLY CONTROL 3721A20035Y 3721A20002A R 146812 MOTOR ASSEMBLY SYNC 2H01102A 2 01102 147581 1 LOUVER HORIZONTAL 4758AR7264A 4758AR7264A 4758AR7264A R 147581 2 LOUVER HORIZONTAL 4758AR7278A 4758AR7278A 4758AR7278A R 147582 LOUVER VERTICAL 4758AR6157A 4758AR6157A R 148000 4800AR7272A 4800AR7272A 4800AR7272A R 149410 KNOB ASSEMBLY 4940AR7022A 4941A30001A 4941A30001A R 149980 SHROUD 4998AR1597A 4998AR1597A 4998AR1597A R
25. 4AR1599B R 550140 ISOLATOR COMP 5040 30017 5040 30017 552102 TUBE CAPILARY BEND 5211A20020C 5211A20020T 5211A20020T R 554030 CONDENSER ASSEMBLY FIRST 5403A20004Y 5403A20004Y R 554031 CONDENSER ASSEMBLY BENT 5403A20004K 554160 COMPRESSOR 5416AR1581C 5416A20013E 5416A20013E R 559010 FAN ASSEMBLY AXIAL 5900AR1330A 5900AR1330A 5900AR1330A R WOCZZ CAPACITOR DRAWING 6120AR2194F 6120AR2194K W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C R 39 DESCRIPTION REMARK NO LWN2120BHG LWN2120BHP LWN2120QHG LWN2123BHG 130410 BASE ASSEMBLY SINGLE 3041A30001K 3041A30001K 3041A30001K 3041A30001K R 130910 CABINET ASSEMBLY SINGLE 3091AR6056B 3091AR6056B 3091AR6056B 3091AR6056B R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20005X 3531A20005U 3531A20005F 3531A20005V R 135313 GRILLE INLET 3530AR1604A 3530A10005B 3530AR1604A 3530AR1604D R 135510 COVER ASSEMBLY CONTROL SINGLE 3551A30015A 3551 30015 3551 30015 3551A30015A R 137215 PANEL ASSEMBLY CONTROL 3721 200020 3721A20035H z 3721A20035H R 146812 MOTOR ASSEMBLY SYNC 2H01102A 2H01102A 2H01102A 2H01102A R 147581 1 LOUVER HORIZONTAL 4758 7264 4758AR7264F 4758AR7264A 4758AR7264F R 147581 2 LOUVER HORIZONTA
26. 98 269310 THERMOSTAT ASSEMBLY 20011091 2H01109L 2H01109M 2HO1109L 2HO1109L R 346811 MOTOR ASSEMBLY SINGLE 4681A20011A 4681AR6033C 468160337 4681AR6033G 4681AR6033M R 349001 DAMPER VENTILATION 4900AR7256A 4900AR7256A 4900AR7256A 4900AR7256A 4900AR7256A R 349480 ORIFICE 4948AR7241A 4948AR7241A 4948AR7241A 4948AR7241A 4948AR7241A R 349600 MOTOR MOUNT 4960AR2895A 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A R 352111 TUBE ASSEMBLY CONNECTION 5211AR7059C 5211AR7059C 5211AR7059C 5211AR7059E 5211AR7059H 352113 TUBE ASSEMBLY DISCHARGE 5211A30003A 5211A30066A 5211A30131A 5211 30137 5211 30293 R 35211A TUBE ASSEMBLY SUCTION 5211A30064A 5211A30088B 5211A30130A 5211A30136A 5211A30292A R 352390 AIR GUIDE ASSEMBLY 5239A20001A 5239 20001 5239A20001A 5239A20001A 5239 20001 R 354210 EVAPORATOR ASSEMBLY 5421A20017A 5421A20017A 5421A20017A 5421A20017B 359012 FAN ASSEMBLY BLOWER 5834 1599 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1599A 550140 ISOLATOR COMP R 552101 TUBE CAPILLARY 5424AR3448L 5425AR3147T 5425AR3147X 5424AR3411P 552102 TUBE CAPILLARY BEND 5211A30296A R 554031 CONDENSER ASSEMBLY BENT 5403A20004B 5403A20004F 5403A20004B 5403A20013D 5403A20004T R 554160 COMPRESSOR 5416AR1411E 5417822566 5416AR1422A 2H01564J 5416A20013E R 559010 FAN ASSEMBLY AXIAL 590
27. AR6033F 4681AR6033B 4681060000 R 359012 BLOWER 5834AR1599A R 352390 AIR GUIDE ASS Y 5239A20001A 5239A20001D 5239 20001 R W48602 CLAMP 3H02932C R 349480 ORIFICE 4948AR7241A R 354210 EVAPORATOR ASS Y 5421 A20009A 5421A20017A 5421A20009A 5421 A20017A 5421 A20017B R 149980 SHROUD 4998AR1597A R 559011 FAN 5900AR1598A 5900AR1330A 5900AR1508A 5900AR1330A R 554031 CONDENSER ASS Y 5403A20004B 5403A20004F 5403A20004B 5403A20004F 5403A20013D R 148000 BRACE 4800AR7271A 4800AR7272A 4800AR7271A 4800AR7272A 4800AR7271A 249950 CONTROL BOX ASSY 4995A20045A 4995A20045B 4995A20045L 49954200456 268712 DISPLAY PWB ASM 6871A30005A R 268714 MAIN PWB ASM 6871A20037H 6871A20037K R WOCZZ CAPACITOR 6120AR2194F 6120AR2194D 6120AR2194F 6120AR2194P 6120AR2194F 6120AR2194D R 264110 POWER CORD ASS Y 3H01307C 3H03555B 3H01307C 2H00677Q R 263230 THERMISTOR ASSY 6323AQ2333K R 237200 CONTROL PANEL 3720AR6163A R 238310 ESCUTCHEON 38414100024 3831A10002B R 146812 SYNCHRONOUS MOTOR 2H01102A R 135500 COVER CONTROL BOX 3550AR7245A R 261704 TRANSFORMER ASS Y 6171AQ2258F R 35211A TUBE SUCTION ASS Y 5211 A30002A 5211A30064A 5211A30154A 5211A30088B 521130130A 5211430065 5211A30136A 352113 TUBE DISCHARGE ASSY 5211A30003A 52114300668 5211A30066A 5211A30131A 5211A30066A 5211A30137A 352111 TUBE CONNECTION ASS Y 5211AR7059C 5211AR7059A 5211AR70590 5211AR7059E 552101 TUBE CAPILLARY 5425AR3147A 5424AR3
28. L 4758AR7278A 4758AR7278F 4758AR7278A 4758AR7278F R 147582 LOUVER VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R 148000 BRACE 4800AR7271A 4800AR7271A 4800AR7271A 4800AR7271A R 149410 KNOB ASSEMBLY 4941A30001A 4941A30001L 4941A30001K R 149980 SHROUD 4998AR1597A 4998AR1597A 4998AR1597A 4998AR1597A R 152302 FILTER ASSY A C 5231AR6159A 5231AR6159D 5231706159 5231AR6159D R 237200 PANEL CONTROL 3720AR6163A R 238310 ESCUTCHEON gt 2 3831A20032C 2 249950 CONTROL BOX ASSEMBLY SINGLE 4995200320 4995A20032R 4995 20101 4995A20032Q R 261704 TRANSFORMER POWER 6170A20006A R 263230 THERMISTOR ASSEMBLY 3035015N 3035015N 6323A20003E 3035015 264110 POWER CORD ASSEMBLY 3H01307C 3H01307C 3H01307D 3H01307C R 266002 SWITCH ROCKER 2H01316C 2H01316C 2H01316C R 266003 SWITCH ROTARY 2H00598F 2H00598F 2H00598F R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20018B R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20195G R 268714 PWB PCB ASSEMBLY MAIN 6871A20188W 269310 THERMOSTAT ASSEMBLY 2H01127D 2H01127D 2 011270 346811 MOTOR ASSEMBLY SINGLE 4681AR6033F 4681AR6033F 4681AR6033F 4681AR6033F R 349001 DAMPER VENTILATION 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A R 349480 ORIFICE 4948AR7241B 4948AR7241B 4948AR7241B 4948AR7241B R 349600 MOUNT MOTOR 4960AR1596A 4960 1596 4960AR1596A 4960AR1596A R W52106 1 TUBE EVAPORATOR 5210A30144E 521
29. O 0705 01001 CAS 2 u u C 759606511 Pts as O WA XVHEOU EACTH Gozrsanro 9 mo ASZ 4 44089 9 1109 zzu 9 T X8 M9 1 MI wo 2109 Pra 5 22 PPAv LC HZOYO ssav PPA 0 td 49050 6L V 00990L apr dte 0 113 pee M5M00 V L5 CS 1999 91 810050 ES SZ m T1 2 ox 82 1 1538 5 100 OL 001 z 2 9 l oms au PTT KTS Lase duco CL M Gs y 5 LE ous 8 may 72 1o 2 o u S g 985950615 sedi guoos zubia 6 05433 seo zuoos iubi 8 8 E 90 sezzng Z 5 oro a X ozv g V3X 9 bn y 022 90 Xs se t lu js Sel 935 2 onan mL 0209064 81 id 1 020445 EZ r3 T osu A O0ZZIVLA 9210 ANY e ozz 9z0u SL 4 TERI 4 T 8 93N 1808 Gd u jn si wol T K avroosegu C 5 S 4100 00 9102 9213 01I 0 jo Z 12082 2608 ZG 9 1 wyo m
30. RANT 3 21 18 3 3 TROUBLESHOOTING GUIDE In general possible trouble is classified in two causes The one is called Starting Failure which is caused from an electrical defect and the other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application Unit runs but poor cooling Ineffective Cooling Check of cold air circulation for smooth flow Dirty indoor Heat exchanger y Malfunction of fan Clogged of air filter Obstruction at air outlet Stop of auto air swing Correct above trouble Check clogging in refrigeration circuit Repair clogging in refrigeration circuit Y Check of outdoor coil heat exchanger amp the fan Check heat load increase operation Check gas leakage Unexpected residue Repair gas leak Overloaded Circuit Replacement of unit if the unit is beyond repair Check of inside gas Y pressure Adjusting of refrigerant charge Malfunction of compressor Replacement of compressor Satisfactory operation with temperature difference of inlet amp outlet air 7 10 19
31. amp is turned off The unit may give a hiss and the fan motor stops for 1 to 10 minutes This should not be regarded as a problem After defrosting the heating operation begins again AUTO SWING ON Airswing is operated while OPERATION knob is set to the COOL or HEAT position OFF 1 Stops the operation of air swing 1 5 3 COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH TYPE O 2 O DISPLAY REMOTE CONTROL 200000 v HD Fon Speed Temp Power Auto Encendido Deflector Precaution The Remote Control unit will not function properly if strong light strikes the sensor window of the air w conditioner or if there are obstacles between the Remote Control unit and the air conditioner POWER BUTTON Operation starts when this button is pressed and stops when you press the button again OPERATION MODE SELECTION BUTTON Select Cooling or Fan or Dehumid mode with button Dehumid mode is not to all models ON OFF TIMER BUTTON Set the time of starting and stopping operation The timer is set by 1 hour FAN SPEED SELECTOR Everytime you push this button it is set as follows High F3 Low F1 Med F2 gt High F3 ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of 16 C to 30 C AUTO RESTART SWITCH NOT TO ALL MODELS In failure of electric power if the switch is set to ON the unit runs
32. apacitor Test capacitor Wiring Check the terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heating Air filter If restricted clean of replace Exhaust damper door Close if open Unit undersized Determine if the unit is properly sized for the area to be cooled Excessive noise Blower or fan Check the set screw or clamp If loose or missing correct If the blower or fan is hitting air guide rearrange the air handling parts Copper tubing Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and barrier Auto air swing fails Rotary switch Set the knob to HIGH COOL or LOW COOL while rocker switch is ON Wiring Synchronous motor Check terminals If loose repair or replace Check the synchronous motor for open circuit 28 4 SCHEMATIC DIAGRAM 4 1 CIRCUIT DIAGRAM MODEL LWN1860BCG BCL BAG LWN2260BCG BCL LWM1860BCG BCL LWM1820BCG BCL LWM1821BCG BCL LWN2120BCG BCL LWM1830BCG BCL LWN2130BCG BCL LWN2131BAG LWM2130AAG BAG POWER INPUT ROTARY SWITCH BK I I THERMOSTAT I WHER BK BR I 3854AR2206H a WIRING DIACRAM ROCKER SWITCH MODEL LWN2123BCG MODEL LWN2120BHG BHP LWN2123BHG WIRING DIAGRAM Beene nd WIRING DIAGRAM Plan L 2 Ribbed
33. e components by referring to the above removal procedure above 2 3 7 SYNCHRONOUS MOTOR 1 2 3 4 Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Remove the crankshaft Disconnect all the leads of the synchronous motor Remove the 2 screws which fasten the synchronous motor See Fig 15 Re install the components by referring to the removal procedure above 14 Figure 14 Figure 15 2 4 REFRIGERATION CYCLE X Discharge the refrigerant system using Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Leave the valve in place after servicing the system 2 4 1 CONDENSER 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace and the shroud cover Refer to section 2 2 1 3 Remove 6 screws which fasten the condenser 4 After discharging the refrigerant completely unbraze the interconnecting tube at the condenser connections 5 Remove the condenser 6 Re install the components by referring to notes See Fig 16 2 4 2 EVAPORATOR 1 Remove the cabinet Refer to section 2 1 2 2 Remove the top cover and the brace Refer to section 2 2 1 Figure 16 3 Discharge the refrigerant completely 4 Remove the 3 screws which fasten the evaporator at the left side and the top side 5 Move the evapora
34. e system If high vacuum equipment is used just crack valves A and B for a few minutes then open slowly with the two full turns counterclockwise This will keep oil from foaming and being drawn into the vacuum pump 3 Operate the vacuum pump for 20 to 30 minutes until 600 microns of vacuum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pressure would indicate a possible leak or moisture remaining in the system With valves A and B closed stop the vacuum pump 4 Remove the hose from the vacuum pump and place it on the charging cylinder See Fig 19B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 16 6 Recharge as follows 1 Refrigeration cycle systems are charged from 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 Fig 18B 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 charge is required the high side will not take it Close valve A 5 With the unit running open valve B and add the balance of the charge a Do not add the liquid refrigerant to the Low side b Watch the Low side gauge allow pressure
35. gram Check the Main PCB pattern gt Exchange the Trans Is output Voltage of ICO1D DC 12V NO Is output Voltage of ICO2D Exchange 0020 0050 e Exchange ICO1D DC 5V pes 15 the reset circuit all right NO Exchange ICO2D The No 16 of Micom is 5V Is the connection between NO Exchange coza Main and Display all right ves NO Connect connector exactly Is the voltage No 20 of Micom Exchange Main PCB 21 Check the PCB pattern Possible Trouble 2 The compressor does not operate Is setting Temp set lower than Room Temp 0 5 C Is the voltage No 10 of ICO1M 0 Check the RY COMP Check the wiring Diagram NO Select the setting Temp to lower Number 5 the voltage 7 of ICO1M DC 5V Exchange ICO1M 15 the Unit for 3 minutes delay Possible Trouble 3 The compressor always operate 15 the wire connection of RY COMP all right Wait 3 Minutes Exchange MAIN PCB Check the RY COMP 22 Connect LEAD Wire to RY COMP again Possible Trouble 4 FAN does operate 5 the voltage
36. he following disassembly POWER SWITCH is set to OFF and disconnected the power cord 2 1 MECHANICAL PARTS 2 1 1 FRONT GRILLE 1 Open the inlet grille upward or downward 2 Remove the screw which fastens the front grille 3 Pull the front grille from the right side 4 Remove the front grille See Fig 1 5 Re install the component by referring to the removal procedure NOTE Mark of inlet grille means opening direction Figure 1 2 1 2 CABINET 1 After disassembling the FRONT GRILLE remove the screws which fasten the cabinet at both sides 2 Remove the two screws which fasten the cabinet at back See Fig 2 3 Pull the base pan forward 2 1 3 CONTROL BOX eee AX 1 Remove the front grille Refer to section 2 1 1 2 Pull the base pan forward so that you can remove the 2 screws which fasten the cover control at the right side See Fig 3 3 Remove the 3 screws which fasten the control box See Fig 3 4 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 5 Disconnect two wire housings in the control box Pull the control box forward completely 7 Re install the components by referring to the removal procedure See Fig 3 Refer to the circuit diagram found on page 19 in this manual and on the control box Figure 3 O 10 2 2 AIR HANDLING PARTS 2 2 1 COVER AT THE TOP 1 Remove the front grille Refer to section 2 1 1 2 Re
37. move the cabinet Refer to section 2 1 2 3 Remove 11 screws which fasten the brace and covers 4 Remove the covers and the brace See Fig 4 5 Re install the components by referring to the removal procedure above 2 2 2 BLOWER 1 Remove the cover Refer to section 2 2 1 2 Remove the 3 screws which fasten the evaporator at the left side and the top side 3 Move the evaporator sideward carefully 4 Remove the orifice from the air guide carefully Remove the clamp which secures the blower with plier See Fig 5 6 Remove the blower with plier or your hand without touching blades See Fig 6 7 Re install the components by referring to the removal procedure above al 2 2 3 FAN 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace and shroud cover Refer to section 2 2 1 3 Remove the 5 screws which fasten the condenser 4 Move the condenser sideways carefully 5 Remove the clamp which secures the fan 6 Remove the fan See Fig 7 7 Re install the components by referring to the removal procedure above 11 Figure 4 Figure 6 Figure 7 2 2 4 SHROUD 1 Remove the fan Refer to section 2 2 3 2 Remove the 2 screws which fasten the shroud 3 Remove the shroud See Fig 8 4 Re install the component by referring to the removal procedure above Figure 8 2 3 ELECTRICAL PARTS 2 3 1 MOTOR 1 Remove the cabinet Refer to section 2
38. move the panel See Fig 11 the capacitor See Fig 11 removal procedure above Figure 11 2 3 4 POWER CORD 1 2 3 2 3 5 THERMOSTAT 1 2 3 4 5 6 If the supply cord of this appliance is damaged it Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Disconnect the grounding screw from the control box Disconnect 2 receptacles Remove a screw which fastens the clip cord Pull the power cord See Fig 12 Re install the component by referring to the removal procedure above Use only one ground marked hole for ground connection must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord Figure 12 fitted to the unit Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Remove the 2 screws which fasten the thermostat Disconnect all the leads of thermostat terminals Remove the thermostat See Fig 13 Re install the components by referring to the removal procedure above Figure 13 13 2 3 6 ROTARY SWITCH 1 2 3 4 Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Remove 2 screws which fasten the rotary switch Disconnect all the leads of the rotary switch terminals Remove the rotary switch See Fig 14 Re install th
39. start unit Check continuity of the thermostat Replace thermostat if circuit is open Capacitor Discharge capacitor before servicing Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged Compressor Check the compressor for open circuit or ground If open or grounded replace the compressor Overload Check the compressor overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool it and retest Compressor cycles on overload Voltage Check the voltage See the limits on the preced ing page If not within limits call an electrician Overload Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Fan motor If not running determine the cause Replace if required Condenser air flow restriction Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vacuum cleaner do not damage fins or brush Clean the interior base before reassembling Condenser fins damaged If condenser fins are closed over a large area on the coil surface head pressures will increase causing the compressor to cycle Straighten the fins or replace the coil 27 COMPLAINT CAUSE REMEDY Compressor cycles on overload C
40. t the customer from being exposed to shock hazards 1 2 INSULATION RESISTANCE TEST 1 Unplug the power cord and connect a jumper between 2 pins black and white 2 The grounding conductor green or green amp yellow is to be open 3 Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions except OFF or O of the ROTARY SWITCH 4 The value should be over 1MQ 2 1 9 SPECIFICATIONS 1 3 1 FOR LWM1860BCG BCL LWN1860BCG BCL LWN2260BCG BCL LWM1820BCG BCL LWM1821BCG BCL LWN2120BCG BCL LWM1830BCG BCL LWN2130BCG BCL LWN2123BCG BAG LWM2130AAG BAG Ee ITEMS BAG BCP BCL BCL BCL BCL BAG BCL LWNZIZIBAG POWER SUPPLY 10 220 240V 50Hz 10 220V 60Hz 10 208 230V 60Hz COOLING CAPACITY 17 500 18 000 1502200 18 000 21 000 24000 22000 18000 21 000 INPUT W 203512 100 2 1902250 2810 2890 2090 2000 2440 2470 200 2470 RUNNING CURRENT A 9386 106101 135 128 9890 115 108 90 12 REFRIGERANT R 22 CHARGE g 690 610 700 no 1090 OPERATING INDOOR 27 08 1918 26 55 08 19 35 WB TEMPERATURE OUTDOOR 3508 24 WB 34 85 08 23 75 WB EVAPORATOR 2ROW 15 STACKS 3 ROW 15 STACKS CONDENSER 2 ROW 19 STACKS L BENDED TYPE ret FAN INDOOR BLOWER FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER
41. tilation lever must be in the CLOSE position in order to maintain the best cooling conditions When a fresh air is necessary in the room set the ventilation lever to the OPEN position The damper is opened and room air is exhausted NOTE Before using the ventilation feature make the lever as shown First pull down part amp to horizontal line with part B THERMOSTAT Thermostat will automatically control the temperature of the room Select the higher number for the lower temperature of the room The temperature is selected by positioning the knob to the desired position The 5 or 6 position is a normal setting for average conditions OPERATION O 0 Turns the air conditioner off MED FAN Permits the medium fan speed operation without cooling LOWFAN Permits the low fan speed operation without cooling HIGH COOL 3K cooling with the high fan speed operation MED COOL x Permits cooling with the medium fan speed operation LOW COOL Permits cooling with the low fan speed operation AUTO SWING ON Air swing is operated while OPERATION knob is set to the COOL position OFF 1 Stops the operation of air swing Side air intake side cooled air discharge Built in adjustable THERMOSTAT Washable one touch filter Compact size CLOSE VENT OPEN Thermostat Operation Auto Swing Off Ek 0 Low Cool
42. to rise to 30 165 c Turn off valve B and allow pressure to drop d Repeat steps B and C until the balance of the charge is in the system 6 When satisfied the unit is operating correctly use the pinch off tool with the unit still running and clamp on to the pinch off tube Using a tube cutter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos solder and solder pinch off tube closed Turn off the unit allow it to set for a while and then test the leakage of the pinch off connection Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pinch off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve CONDENSER COMPOUND MES MANIFOLD Q GAUGE B A CAPILLARY TUBE SEE INSETS BELOW COMPRESSOR
43. tor sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 6 Remove the evaporator 7 Re install the components by referring to notes See Fig 17 2 4 3 CAPILLARY TUBE 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace Refer to section 2 2 1 3 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube 4 Remove the capillary tube 5 Re install the components by referring to notes Figure 17 15 Replacement of the refrigeration cycle 1 When replacing the refrigeration cycle be sure to discharge the refrigerant system using a Freon recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system 2 After discharging the unit completely remove the desired component and unbrace the pinch off tubes 3 Solder service valves into the pinch off tube ports leaving the valves open 4 Solder the pinch off tubes with Service valves 5 Evacuate as follows 1 Connect the vacuum pump as illustrated Fig 18A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed The vacuum pump is now pulling through valves A and B up to valve C by means of the manifold and entir
44. website http biz LGservice com e mail http www LGEservice com techsup html Room Air Conditioner SERVICE MANUAL MODELS LWM1860BCG BCL QCG QCL QAG BAG LWN1860BCG BCL QCG QCL LWN2260BCG BCL QCG QCL LWM1820BCG BCL QCG QCL LWM1821BCG BCL QCG QCL LWN2120BCG BCL QCG QCL LWN2123BCG LWM1830BCG BCL QCG QCL LWN2130BCG BCL QCG QCL BXN LWN2131BAG LWM2130AAG BAG LWM1860BCP LWN2120BHG BHP QHG LWN2123BHG CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE CONTENTS 1 PREFACE 1 1 SAFETY PRECAUTIONS a 2 1 2 INSULATION RESISTANCE 2 1 3 SPECIFICATIONS orae rH D 3 X 6 1 5 CONTROL 6 1 5 1 COOLING ONLY MODEL 6 1 5 2 HEAT PUMP 7 1 5 3 COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH 8 2 DISASSEMBLY INSTRUCTIONS 2 1 MECHANICAL 10 2 1 1 FRONT GRILLE ata 10 10 2 1 3 CONTROL 10 2 2 AIR HANDLING 11 2 2 1 COVER AT THE 11 11 int 11 2 2 4 SHROUD 19 2 3 ELECTRICAL PARTS 19 28 MOTOR A Ca 12 2 3 2 COMPRESSOR eodein 12 2 3 3 CAPACITOR ia 13 1 PREFACE 2 3 4 POWER CORDJ

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