Home

LG Room Air Conditioner - ApplianceAssistant.com

1. Toe Tos T Tos wo 100 0001 10 2504 aroo Sacco azoo oro T I LL 7 9082 9009 9 4 02001 dior 0900 C doo SNYHL SAM Od riouNz Wt ozr 1N3WO3S 88 yet IND 93V5 3 089 2208 711 AV 0966 ial Ne 55 11 HMd NO T 099 5909 EG 2 EEUU Ei 3 EZ 19 1000 089 5009 E1 si 2 089 5108 in MOTAH sis ele 4 SEN HOLOW NO ora prz 10 m 55 ag NS E BES gt osoa pza Duo ades T SL o o x o ung WH gt oz bios LI T XI XI 2 ma INO a ie for lae 9 x m zHLNO Zor ave Te Te je O 5 2935 sinoqa 3958 x wioconn 88 535 E wool IMS m t 17 100595 0I6I0 ele 10505 asw 5 1 gt lt CAE nino usan D gt lt t euros 7 T gt weve gt Tyueos VIVI0 7 MOTAU gt lt 1M
2. CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET COMPLETE LIQUID COOL LOW PRESSURE VAPOR HOT BOIL OFF POINT DISCHARGED 2 AIR esa Sa SELES i lt ROOM AIR HEAT LOAD gt OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH LIQUID PRESSURE LIQUID OUTLET DROP 22 PRESSURE VAPOR CAPILLARY TUBE a REFRIGERANT LOW PRESSURE VAPOR Figure 26 Service Manual 23 Troubleshooting Guide In general possible trouble is classified in two kinds 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 Ineffective Cooling Check cold air circulation Check outdoor coil for smooth flow heat exchanger amp the fan operation Dirty indoor coil Check gas leakage Heat exchanger Unit runs but poor cooling Check heat load increase Not on separate circuit Malfunction of fan Repair gas leak Clogged of air filter Obstruction at air outlet Check inside gas Replacement of unit if the pressure unit is beyond repair Adjusting of refrigerant charged Correct above trouble Malfunction of compressor Check clog
3. 22 23 PISO V56 S m LO NOR LR 23 Troubleshooting cs 24 Electrical Parts Troubleshooting Guide enit rte etna tre pagas 26 30 Exploded ee lati 36 Replacement Parts List 37 2 Room Air Conditioner Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed 8 Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is Classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury This symbol indicates the possibility of injury or damage to property only E Meanings of symbols used in this manual are as shown below Be sure not to Be sure to follow the instruction AWARNING Always install the expansion panel s Do not place the power cord near a heater Improper assembly or installation may cause It may cause fire and electric shock incorrect operation including injury fire and electric shock h
4. N Is the voltage NO 9 of DC 12V Is the Unit for 3 minutes Replace ICO1M Wait 3 Minutes Replace AC PCB Possible Trouble 3 The compressor always operate gt NO Connect LEAD Wire to 2 gt RY COMP again RY COMP OK pes Check the RY COMP Service Manual 31 Troubleshooting Guide Possible Trouble 4 FAN does not operate Is the voltage NO 1 or 2 or 4 NO of IC01M DC 5V ves ls the voltage NO 16 or 15 or 13 Y Replace IC01M Y of IC01M 0V Check the RY Hi or RY Med or RY Lo Check the wiring diagram Possible Trouble 5 Remote controller does not operate Is the voltage of Battery NO Replace ICO1M over 2 3V ves s the voltage No 10 NO Replace the battery Y of CN AC DC on AC PCB Ass y DC 5V NO Is the connection of Check the PCB pattern Connect connector to Y CN AC DC OK e Replace Receiver Ass y 32 Hoom Air Conditioner CN AC DC exactly Possible Trouble 6 It displays abnormally on DC PCB Ass y Are IC01G and IC02G OK ves NO Is the connection of CN AC DC OK yes Does the IC03G operate normally on AC PCB Ass y yes Replace the DC PCB Ass y NO Tr
5. J O o 107 Jos 0 lt gt 0 a 0 LED1 g8 SEGMENT 9155 5086 apama RECEIUER E 22 y yg 9669 II I II I V p V i LEDS isn AZSHING g O PCB 6870A90067C EA VI J05 0 SRU S ASSEMBLY 6871A20418A 5 0898 V lt y J06 13 LED4 LED 5 8558 i T 4 A A PURIEIERY Pine 54035 _ DEFROST AIR PURIFRERT TRE DO N gt UD 5 4 _ C lt gt 0 6 9 6 8 6 C028 LED3 Ag 5 x RE TIMER N N N DRY HEAT o G e d n Yo E 5 8201C M Y lt 35 80045 N THO o Se g NA une FAN ON OFF 77 125 22 Room Air Conditioner Troubleshooting Guide Troubleshooting Guide CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COIL Figure 26 is a brief description of the important components and their function in what is called the refrigeration system This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONITIONER
6. Replace 01 Replace 01 Is the voltage NO 1 or 2 or 4 of IC01M DC 12V Is the voltage NO 16 or 15 or 13 NO gt of IC01M 0V ves Check the RY Hi or RY Med or RY Lo Check the wiring diagram Possible Trouble 5 The function of Energy Saver does not operate Is the mode NO key pushed once more from cool mode Is the voltage No 3 of CN AC DC of AC PCB Ass y DC 5V YES Reference to OWNER S MANUAL 28 Room Air Conditioner Set the mode key to Energy Saver mode Check the Energy Saver mode key Check the pattern of AC amp DC PCB Troubleshooting Guide Replace the battery Possible Trouble 6 Remote controller does not operate Is the voltage of Battery NO over 2 3V ves s the voltage No 10 NO of CN AC DC on DC PCB Ass y DC 5V Is the connection of NO Check the PCB pattern Connect connector to CN AC DC OK Replace Receiver Ass y Possible Trouble 7 It displays abnormally on DC PCB Ass CN AC DC exactly Replace IC01G Connect connector NO Is 1 good ves NO Is the connection of NO CN AC DC OK yes Does the IC03G 6016 0020 0030 for Delux Model NO to CN AC DC exactly
7. TYPE A 11EA SHORT SCREW TYPE B 5EA WOOD SCREW TYPE D 1EA SEAL STRIP TYPE E 1EA SASH SEAL Adhesive backed Not adhesive backed INNER SILL y OUTER SILL INDOORS OUTDOORS Figure 3 WOOD STRIP MOUNTED 1 MAX am N OF INNER SILL gt CLEARANCE STORM WINDOW INNER FRAME SIEL WOOD STRIP FOR L BRACKET y OUTER SILL INDOORS OUTDOORS Figure 4 TYPE C 3EA L BACKET DRAIN PIPE F 2EA GUIDE PANEL TYPE G 1EA SUPPORT BACKET Service Manual 9 Installation BEFORE INSTALLATION 1 Insert the guide panels into the guides of the air conditioner Fasten the curtains to the unit with screws TYPE A as shown Figure 5 2 Cut the adhesive backed seal strip TYPE D to the window width Remove the backing from the seal strip and attach the seal strip to the underside of the bottom window Figure 6 NOW START INSTALLATION 1 LOCATING UNIT IN WINDOW Open the window and mark center line on the center of the inner sill as shown in Figure 6 2 ATTACH L BRACKET a Install the L brackets behind the inner window sill with the short side of bracket as shown Use the 2 screws TYPE A provided b The bracket helps to hold unit securely in place Be sure to place bracket edge flush against back of inner sill See Figure 7 CAUTION During the following step hold unit firmly until window sash is lowered to top cha
8. website http www lgservice co LG LG Room Air Conditioner _ MODEL LWHD8000R LWHD8000RY5 LWHD1000R LWHD8000RY6 NIT READ THE SAFETY ANUAL D SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions u u 3 Di AM v 6 lt lt _ ________ __ __ _ _ 6 L I V ped ge 7 lUi eT E HO 8 Select the Best Location _ ___ __ __ _ _ __ _ _ __ 8 8 _ __ _ _ __ _________ __ __ _ _ _ _ _ _ _ _ 8 RT 9 12 F neti n of Controls 12 Disassembly uuu X T 13 Mechanical E DES 13 Air handling Parts 14 Electrical PariS or 15 _ _ _ ______ _ 17 Schematic Diag L V M 5 uya 20 Electronic Control S 20 21 Compo ente LOCI cel mu
9. M 2 5 ZMS Ts 7 12 XV gt 2155 z su gt lt p TEP Te Te Te Te pe z i E es RE E 8 2 9026 E SAH NO wet 05 OND E Hl 3dld I nA CC LL I w Suzou T z l 1 EI oF w m i T zai 18 d woud sus mi veo I a I 4 viol ul arzi 12 gt 4 x o HLWOOH va z z xi viu 1109 vou 2 m a Electronic Con 20 Room Air Conditioner Schematic Diagram Wiring Diag DC PCB ASSEMBLY N THERMISTOR SWITCH BK BR gt Plain CN HVB Ai WIRING DIAGRAM ASSEMBLY S Service Parts N Non Service Parts Ero DESCRIPTION Em REMARKS 1 MOTOR ASSY 1 S 2 CAPACITOR 1 S 3 COMPRESSOR 1 S 4 OVERLOAD PROTECTOR 1 S 5 DC PCB ASSEMBLY 1 S 6 AC PCB ASSEMBLY 1 S 7 THERMISTOR 1 S 8 PLASMA FILTER ASSY 1 S Service Manual 21 Schematic Diagram CN MOTOR HEAT SINK ZNRO1J 9 e COW PCB 6870A90068D E02J o RCO ASSEMBLY 6871A20417C 250VIT3 15A 2 DISPLAY P C B ASSEMBLY
10. gt REMOCON SIGNAL RECEIVER IS 12 Room Air Conditioner Disassembly Disassembly Before the following disassembly set the CONTROL BOX to OFF and disconnect the power cord 1 Front Grille 1 Open the Inlet grille downward and remove the air filter 2 Remove the screw that fastens the front grille See Figure 12 3 Pull the front grille from the right side Remove the front grille There are 4 hooks 5 Re install the components by referring to the removal procedure above 2 Cabinet 1 After disassembling the FRONT GRILLE remove the 6 screws that fasten the cabinet at both sides Remove the 2 screws that fasten the cabinet at back Lift the cabinet from the unit Remove the cabinet Re install the components by referring to the removal procedure above AR Figure 12 3 Control Box Remove the front grille Refer to section 1 Remove the cabinet Refer to section 2 Remove the 1 screw which fasten the power cord Disconnect the grounding screw from the evaporator channel Remove the 2 screws that fastens the control box cover Remove the housing that connects PCB and motor wire in the control box Remove the nut that fastens the terminal cover Remove the terminal cover Remove all the leads from the overload protector 0 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 11 Raise the cont
11. removal procedure above 9 Capacitor 1 Remove the control box Refer to section 3 2 Open the top cover from the control box See Figure 21 3 Pull out the capacitor from the control box 4 Disconnect all the leads of capacitor terminals 5 Re install the components by referring to the removal procedure above TTL 2 N Z 770772 LRAT INS 207 Figure 19 Figure 20 Figure 21 Service Manual 15 Disassembly 10 1 2 11 16 Power Cord Remove the control box Refer to section 3 Open the top cover from the control box Refer to section 9 Disconnect the front panel from the control box See Figure 22 Disconnect two leads from the capacitor and relay Pull out the power cord Re install the component by referring to the above removal procedure above Use only one ground marked hole for ground connection 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 attached at the unit Motor 1 Remove the cabinet Refer to section 2 2 Remove the turbo fan Refer to section 4 3 Remove the fan Refer to section 5 4 Remove the 4 screws that fasten the motor from the air guide See Figure 23 Remove the motor 6 Re install the components by referr
12. Replace the Trans Is output Voltage of IC01D NO DC 12V Replace D02D D05D Replace ICO1D NO Is output Voltage of ICO2D DC 5V Replace ICO2D Is the reset circuit good The No 14 of Replace 2 Micom is 5V Is the connection between AC and DC NO Connect connector exactly OK YES Is the voltage No 18 of Micom Check the PCB pattern DC 5V ves Replace AC PCB Ass y 26 Room Air Conditioner Possible Trouble 2 Is setting Temp set lower than Room NO Troubleshooting Guide The compressor does not operate Temp 0 5 C Is the voltage No 10 of ICO1M OV Is the voltage NO 9 of gt Select the setting Temp to lower Number NO Does the Unit delay for 3 minutes ICO1M DC 12V Check the RY COMP Check the wiring Replace 01 Wait 3 Minutes Diagram Possible Trouble 3 Is the wire connection of NO Replace MAIN PCB Ass The compressor always operate RY COMP OK Check the RY COMP Connect LEAD Wire to RY COMP again Service Manual 27 Troubleshooting Guide Possible Trouble 4 FAN does not operate NO
13. carefully and rearrange tubing not to contact cabinet compressor shroud and barri er Service Manual 35 l Replacement Parts List Replacement Parts List LOCATION PART NO NO DESCRIPTION LWHDso00R L V HD8000RY5 LWHD1000R REMARK LWHD8000RY6 130410 BASE ASSEMBLY WELD SINGLE 30414100410 3041A10041Q 3041A10041H R 130910 CABINET ASSEMBLY SINGLE 3091A10056C 3091A10056C 3091A10056A R 135312 GRILLE ASSEMBLY FRONT SINGLE 35314240178 3531A24017B 3531A24020A R 135313 GRILLE INLET 3530A10239B 3530A10239B 3530A10236A R 135500 COVER 3550A30226A 3550A30226A 3550 30226 R 147581 LOUVER HORIZONTAL 4758A20064A 4758A20064A 4758A20069A R 147582 1 LOUVER VERTICAL 4758A20040C 4758A20040C 4758A20040C R 147582 2 LOUVER VERTICAL 4758A20040D 4758A20040D 4758A20040D R 148000 BRACE 4800A30002C 4800A30002C 4800 30002 R 159980 SHROUD 4998A10036A 4998A10036A 4998 10036 R 152302 FILTER ASSEMBLY AIR CLEANER 5231A20023A 5231A20023A 5231A20023A R 237200 PANEL CONTROL 3720A10111C 3720A10111C 3720 10111 R 249950 CONTROLBOXASSEMBLY SINGLE 4995A10113L 4995A10113L 4995A10113J R 268712 PWB PCB ASSEMBLY MAIN AC 6871A20417C 6871A20417C 6871A20417C R 238310 ESCUTCHEON 3831A10021E 3831A20021E 3831A10046A R 268714 PWB PCB ASSEMBLY MAIN DC 6871A20418A 6871A20418
14. the capillary tube 4 Re install the components by referring to notes Service Manual 17 Disassembly NOTICE 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 WATCO 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 unbraze 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 figure 25A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclock wise and leave the valves open The vacuum pump is now pulling through valves A and B up to valve C by means of the manifold and entire system CAUTION If high vacuum equip ment 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 vaccum for 20 to 30 minutes until 600 microns of vaccum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pres sure would indicate a possible leak
15. A 6871A20418A R 263230 THERMISTOR ASSEMBLY 6323A20004P 6323A20004P 6323 20004 R 264110 POWER CORD ASSEMBLY 6411A20048R 6411A20048R 6411A20037C R 346811 MOTOR ASSEMBLY SINGLE 4681A20140A 4681A20140A 4681A20140A R 349001 1 DAMPER VENTILATION 4900A20020A 4900A20020A 4900 20020 R 349001 2 DAMPER VENTILATION 4900A20020B 4900A20020B 4900 20020 R 349480 ORIFICE 4948A20030A 4948A20030A 4948 20030 R 352115 TUBE ASSEMBLY EVAPORATORIN 5211 25020 5211A25020A 5211A25020A R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A22017B 5211A22017A 5211A22017A R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A21237A 5211A21237A 5211A21237A R 552111 TUBE ASSEMBLY CONDENSER OUT 5211 22016 5211A22016A 5211A22016A R 552102 TUBE ASSEMBLY CAPILLARY 5210A30646A 5424AR3411N 5211A23020A R 352390 AIR GUIDE ASSEMBLY 5239A20019A 5239A20019A 5239A20019A R 354212 EVAPORATOR ASSEMBLY FIRST 5421A10043A 5421A10043A 5421A10043A R 554030 CONDENSER ASSEMBLY FIRST 5403A20180A 5403A20180A 5403 20180 R 550140 ANTI VIBRATION BUSH 5040AR4195A 5040AR4195A 5040AR4195A R 554160 COMPRESSOR SET 2520UCBA002 5416A20014B 5416 90007 R 559010 FAN AXIAL 5900A20015A 5900 20015 5900200154 R 359012 FAN TURBO 5900A20020A 5900A20020A 5900 20020 R 267110 REMOTE CONTROLLER ASSEMBLY _ 6711A20034G 6711A20034G 6711 20034 R W48602 CLAMP SPRING 3H02932B 3H02932B gt 3H02932B R WOCZZ CAPACITOR DRAWING 0CZZ
16. A20005B 0CZZA20005B 0 22 20005 R Service Manual 37 January 2005 P NO 3828A29003C Printed in China
17. Conditioner Product Specifications Specfications meus 90089 MM MEL POWER SUPPLY 1 115V 60Hz CAPACITY BTU h 8 000 8 000 10 000 INPUT W 820 820 1 020 TI RUNNING CURRENT A 7 3 7 3 9 4 E E R BTU W h 9 8 9 8 9 8 OPERATING INDOOR 26 7 DB 19 4 WB CONDITION OUTDOOR 35 DB 23 9 WB REFRIGERANT R 22 CHARGE 370g 13 1 02 4209 14 8 oz 4809 16 9 oz EVAPORATOR 2 ROW 11 STACKS LOUVER FIN TYPE CONDENSER 2 ROW 15 STACKS STRAGHT TYPE FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING HEATING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL REMOTE CONTROLLER ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION TOP DOWN CHASSIS COMPRESSOR OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUDING POWER CORD ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 62 28 62 28 71 32 OUTSIDE DIMENSION inch 19 6X 12 3 5 x19 36 W x H x D mm 497 x 315 x 492 DB dry bulb WB wet bulb Service Manual 7 Installation Installation Select the B 1 To prevent vibration and noise make sure the unit is installed securely and firmly 2 Instal
18. ETTING BUTTON This button can automatically control the temperature of the room The temperature can be set within a range of 60 F to 86 F by 1 F 16 C to 30 C by 1 C Select the lower number for lower temperature of the room 3 OPERATION MODE SELECTION BUTTON Every time you push this button it will shift among COOL ENERGY SAVER FAN and DRY Energy Saver If Energy Save mode is selected the fan stops when the compressor stops cooling a Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed 4 FAN SPEED SELECTOR Every time you push this button it is set as follows Hi F3 gt Low F1 gt Med F2 gt Hi F3 gt Low F1 gt ON OFF TIMER BUTTON You can set the time when the unit will turn on or turn off automatically by pressing the timer button If the unit is operating this button controls the time it will be turned off If the unit is off state this button controls the time it will start Every time you push this button the remaining time will be set as follows Stopping operation 1Hour gt 2Hours gt 3Hours gt 4Hours gt 5Hours gt 6Hours gt 7Hours gt 8Hours gt 9Hours gt 10Hours gt 11Hours gt 12Hours gt OHour gt 1Hour gt 2Hours gt Starting operation 1Hour gt 2Hours gt 3Hours gt 4Hours gt 5Hours gt 6Hours gt 7Hours gt 8Hours gt 9 gt 10 gt 11Hours gt 12Hours gt off gt 1Hour gt 2Hours
19. NDOW Trun the air conditioner off disconnect the power cord remove the L bracket and the screws installed through the top and bottom of the guide panels and save for reinstalla tion later Close the guide panels keeping a firm grip on the air conditioner raise the sash and carefully tilt the air conditioner backward draining any condensate water Lift the air conditioner from the window ad remove the sash seal from between the win dows Installation L Bracket Sash Seal Type F Figure 11 Service Manual 11 Operation Operation Designed for COOLING ONLY Built in adjustable Thermistor Powerful and quiet cooling Washable one touch filter Top down chassis for the simple instal Compact size lation and service Equipped with reliable and efficient rotary Low air intake top cooled air discharge compressor Function of Coi DISPLAY REMOTE CONTROL Cool FI LOW F2 MED Energy F3 HIGH Saver move e PRECAUTION The Remote Control unit will not A function properly if strong light strikes the sensor window J of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner POWER BUTTON To turn the air conditioner ON push the button To turn the air conditioner OFF push the button again This button takes priority over any other buttons 2 ROOM TEMPERATURE S
20. Replace IC03G Q01G Q02G Q03G operate normally on DC PCB Assy Replace the DC PCB Ass y for Delux Model Service Manual 29 Troubleshooting Guide Electrical Pat Possible Trouble 1 The unit does not operate Is the Trans input power AC 115V NO Check the Fuse Check the wiring diagram TES Is the Trans output power about AC 14V Is shorted the Trans output Check the AC PCB pattern Replace the Trans Is output Voltage of IC01D NO DC 12V Replace D02D D05D Replace ICO1D NO Is output Voltage of ICO2D DC 5V Replace ICO2D Is the reset circuit OK The No 14 of Replace IC01A Micom is 5V Is the connection between AC and DC NO Connect connector exactly OK YES Is the voltage No 40 of Micom Check the PCB pattern DC 5V ves Replace AC PCB Ass y 30 Room Air Conditioner Possible Trouble 2 Is desired Temp set lower than Room Select the desired Temp to lower Number Temp 0 5 C Is the voltage No 10 of ICO1M OV Check the RY COMP Check the wiring Diagram Troubleshooting Guide The compressor does not operate NO
21. azards Do not use the power cord near flammable Do not disassemble or modify products gas or combustibles such as gasoline benzene thinner etc may cause P dd or fire It may cause electric shock and failure Service Manual 3 Safety Precautions Plug in the power plug properly Otherwise it will cause electric shock or fire Do not operate or stop the unit by inserting or pulling out the power plug It will cause electric shock or fire Do not modify power cord length It will cause electric shock or fire Use the air conditioner on a single outlet circuit Do not share the outlet with other appliances It will cause electric shock or fire Do not damage or use an unspecified power cord It will cause electric shock or fire TET SAPE 55 G 9 Po RRN Nu Always plug into a grounded outlet No grounding may cause electric shock Do not use the socket if it is loose or damaged It may cause fire and electric shock Do not operate with wet hands or in damp environment It may cause electric shock Ventilate before operating air conditioner when gas goes out t may cause explosion fire and burn 4 Hoom Air Conditioner Safety Precautions If water enters the product turn off the the power Do not clean the air conditioner with water switch of the main body of appliance Contact ser vice
22. center after taking the power plug out from the socket It will cause electric shock or failure of machine Water may enter the unit and degrade the insula tion It may cause an electric shock ACAUTION Never touch the metal parts of the unit when Do not block the inlet or outlet removing the filter They are sharp and may cause injury It may cause failure of appliance or performance deteriorate Ensure that the outer case is not damaged by Be cautious not to touch the sharp edges age or wear when installing f the outer case is damaged it must be repaired It may cause injury or replaced immediately Leaving it damaged could result in the air condi tioner falling out of the window creating a safety hazard Service Manual 5 Dimensions Dimensions A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the A air conditioner This symbol indicates special notes 3 492 19 3 8 42 1 21 32 _ 497 19 orte 42 1 21 32 _ 100 3 3 1546 27 5 1 3 32 e I 347 13 2432 315 12 497 19 9 16 gt 315 12 3 8 6 Hoom Air
23. ging in refrigera Replacement of tion circuit compressor Satisfactory operation with Repair clogging in refrigera temperature difference of tion circuit inlet amp outlet air 44 50 F 7 10 C 24 Room Air Conditioner Troubleshooting Guide Fails to Start Check circuit breaker and fuse Check of power source Check of control switch Gas leakage of feeler bulb setting of thermostat Check of control switch Fan only fails to start Improper wiring Compressor only fails to start Drop of power voltage lt Improper thermostat setting Defect of fan motor Defect of compressor capacitor capacitor Loose terminal connection Irregular motor resistance Q Irregular motor insulation Q Capacitor check lt Improper wiring Replacement lt Irregular motor resistance Replacement of fan motor Regular but fails to start Irregular motor insulation O Replacement of compressor locking of rotor metal Replacement of compressor Motor damaged Service Manual 25 Troubleshooting Guide Possible Trouble 1 The unit does not operate Is the Trans input power AC 115V Check the Fuse Check the wiring diagram pss Is the Trans output power about AC 14V Is shorted the Trans output Check the Main PCB pattern
24. ing to the removal procedure above See Figure 23 Room Air Conditioner Figure 22 12 Condenser CAUTION 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 1 Remove the cabinet Refer to section 2 2 Remove the 4 screws that fasten the brace Refer to section 4 3 Remove the 5 screws that fasten the condenser and shroud 4 After discharging the refrigerant completely unbraze the interconnecting tube at the con denser connections 5 Remove the condenser 6 Re install the components by referring to notes See Figure 23 13 Evaporator 1 Remove the control box Refer to section 3 2 Remove the air guide upper Refer to section 4 3 Remove the 2 screws that fasten the evapora tor 4 Move the evaporator sideways carefully Refer to section 4 5 After discharging the refrigerant completely unbraze the interconnecting tube at the evapo rator connections 6 Remove the evaporator 7 Re install the components by referring to notes See Figure 24 14 Capillary Tube 1 Remove the cabinet Refer to section s2 2 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube See caution above Disassembly Figure 24 3 Remove
25. ked out of balance or partially missing replace it Turbo If cracked out of balance or partially missing replace it Loose clamper 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 Compressor will not run but fan motor runs Voltage Check voltage 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 34 Hoom Air Conditioner Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor will not run but fan motor runs Thermistor Check the TEMP control If not at the lowest number set TEMP control to this setting and restart the unit Check the continuity of the thermistor Replace the thermistor if the 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 mount ed Replace if open If the compressor temperature is high remove the over
26. l the unit where th does not shine directly on the unit where the sun doe ine directly INSIDE OUTSIDE 3 The outside of the cabinet must extend outward for at least AWNING 12 and there should be no obstacles such as a fence or ibo wall within 20 from the back of the cabinet because it will COOLED AIR HEAT prevent heat radiation of the condenser RADIATION Restriction of outside air will greatly reduce the cooling effi ciency of the air conditioner FENCE T ABOUT remain exposed on the outdside of the structure Over 20 30 60 A CAUTION All side louvers of the cabinet must 4 Install the unit slanted slightly so the back is slightly lower than the front about 7 4 This will force condensed water to the outside 5 Install the unit with the bottom about 30 60 above the floor level Figure 1 The setting conditions must be checked prior to initial starting The following 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 of the air inlet and outlet How to Se eli In humid weather excess water may cause the Base Pan
27. load cool it and retest Compressor cycles on Voltage Check the voltage overload 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 Compressor cycles on Fan motor If not running determine the cause Replace if overload required Condenser air flow restric tion Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vac uum 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 overload Straighten the fins or replace the coil Compressor cycles on overload Capacitor Test capacitor Wiring Check the terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heat ing 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 Turbo or fan Check the set screw or clamp If loose or missing correct If the turbo or fan is hitting air guide rearrange the air handling parts Copper tubing Remove the cabinet
28. nnel behind side panel frames Personal injury or property damage may result if unit falls from window 3 INSTALL THE AIR CONDITIONER IN THE WINDOW a Carefully lift the air conditioner and slide it into the open window Make sure the bottom guide of the air condition er drops into the notches of the L bracket See Figure 8 IMPORTANT When the air conditioner drops into the L bracket the air con ditioner will be centered in window opening as shown in Figure 9 b While steadying the air conditioner carefully bring the window sash down behind the upper guide of the air con ditioner as shown in Figure 10 10 Room Air Conditioner Figure 5 Figure 6 Figure 8 Figure 9 WINDOW FRAME UPPER GUIDE BOTTOM GUIDE Figure 10 ABOUT 1 4 L BRACKET 4 SECURE THE GUIDE PANELS Extend the guide panels TYPE F to fill the window opening using 4 screws TYPE to secure them as shown in Figure 11 5 INSTALL THE SASH SEAL AND SASH LOCK a Cut the sash seal TYPE E to the window width Stuff the sash seal between the glass and the window to prevent air and insects from getting into the room as shown in Figure 11 b Fasten the L bracket using a TYPE A screw as shown in Figure 11 6 Window installation of room air conditioner is now completed See ELECTRICAL DATA for attaching power cord to electrical outlet REMOVAL FROM WI
29. 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 figure 25B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 18 Hoom Air Conditioner 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 figure 25B 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 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 braze and braze pinch off tube clo
30. oubleshooting Guide Replace IC01G IC02G NO Connect connector to CN AC DC exactly e Replace IC03G Service Manual 33 Troubleshooting Guide COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if none Power supply cord Check voltage to Control Box If none check power supply cord Replace cord if circuit is open nection loose Wire disconnected or con 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 for condenser fan must have 1 4 to 5 16 inch clearance to the base If it hits 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 Fan motor runs intermittently Revolves on overload Check voltage 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 Fan If crac
31. rol box upward completely See Figure 14 12 Re install the components by referring to the removal procedure above Refer to the wiring diagram found on page 21 in this manual and on the control box Figure 14 Service Manual 13 Disassembly Air Handling P 4 Air Guide and Turbo Fan Remove the front grille Refer to section 1 Remove the cabinet Refer to section 2 Remove the control box Refer to section 3 Remove the 4 screws that fasten the brace Remove the brace Remove the 2 screws that fasten the air guide upper 7 Remove the air guide upper See Figure 15 8 Remove the 2 screws that fasten the evaporator 9 Move the evaporator forward and pulling it upward slightly See Figure 16 Figure 15 10 Pull out the hook of orifice by pushing the tabs and remove it See Figure 16 11 Remove the clamp with hand pliers which secures the turbo fan 12 Remove the turbo fan 13 Remove the 2 screws that fasten the air guide from the base pan 14 Move the air guide backward and pull out from t the base pan Move the air giude lower carefully ES 15 Re install the components by referring to the removal procedure above O OI q N se Uk Figure 16 5 FAN Remove the cabinet Refer to section 2 Remove the brace Refer to section 4 Remove
32. sed Turn off the unit allow it to set for a while and then test the leakage of the pinch off connection Disassembly Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pin off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve COMPOUND GAUGE CONDENSER HIGH PRESSURE SIDE MANIFOLD CI GAUGE B CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR LOW PRESSURE SIDE COMPRESSOR EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 25A Pulling Vacuum Figure 25B Charging Service Manual 19 Schematic Diagram Schematic Diagram
33. the 5 screws which fasten the condenser Move the condenser to the left carefully Remove the clamp that secures the fan Remove the fan See Figure 17 Re install by referring to the removal procedure NOOR WD 6 Shroud 1 Remove the fan Refer to section 2 2 2 Figure 17 2 Remove the shroud See Figure 18 3 Re install the components by referring to the removal procedure above Figure 18 14 Room Air Conditioner Disassembly 7 Overload Protector Remove the cabinet Refer to section 2 Remove the nut that fastens the terminal cover Remove the terminal cover See Figure 19 Remove all the leads from the overload protec tor Remove the overload protector Re install the components by referring to the removal procedure above 8 Compressor 1 2 Remove the cabinet Refer to section 2 Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery sys tem install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system Remove the overload protector Refer to sec tion 7 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections Remove the 3 nuts and the 3 washers which fasten the compressor Remove the compressor See Figure 20 Re install the components by referring to the
34. to overflow To drain the water remove the Drain Cap and secure the Drain Pipe to the rear hole of the Base Pan Figure 2 SS Hang Push Figure 2 8 Room Air Conditioner Installation Window Requirements All supporting parts should be secured to firm wood masonry or metal This unit is designed for installation in standard double hung windows with actual opening widths of 22 to 36 The upper and lower sash must open sufficiently to allow a clear vertical opening of 13 from the bottom of the sash to the window stool If storm window presents interference fasten a 2 wide wood strip to the inner window sill across the full width of the sill The wood strip should be thick enough to raise the height of the window sill so that the unit can be installed without interference by the storm window frame See Figure 4 Top of wood strip should be approximately 3 4 higher than the storm window frame STORM WINDOW FRAME or wood strip OUT DOORS to help condensation to drain properly to the outside Install a second wood strip approximately 6 long by 11 2 wide and same thickness as first strip in the center of the outer sill flush against the back off the inner sill This will raise the L bracket as shown Figure 4 If the distance between STORM WINDOW FRAME and WOOD STRIP MOUNTED ON TOP OF INNER SILL is more than 1 two of wood strip are not necessary Installation HARDWARE

LG Room Air Conditioner - ApplianceAssistant.com

Contents

Download Pdf Manuals

Related Search

Related Contents