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Possible Trouble 6

It displays abnormally on DC PCB Ass’y.

NO

NO

NO

NO

YES

YES

YES

Are IC01G and IC02G

OK?

Is the connection of 

CN-AC/DC OK?

• Replace the DC 

  PCB Ass'y. 

• Replace IC01G, 

  IC02G.

• Replace IC03G.

• Connect connector 

  to CN-AC/DC exactly.

Does the IC03G

operate normally on AC 

PCB Ass'y?

34 Room Air Conditioner

Troubleshooting Guide 

Содержание LW8000ER

Страница 1: ...ioner SERVICE MANUAL LG CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL MODEL HBLG8003R LB8000ER LW8000ER HBLG1003R LWHD1006R L1006R LWHD1006RY6 L1006RY6 ...

Страница 2: ...e Drain Pipe 7 How to Install 8 Operation 12 Function of Controls 12 Disassembly 14 Mechanical Parts 14 Air handling Parts 15 Electrical Parts 16 Refrigerating Cycle 18 Schematic Diagram 21 Wiring Diagram 21 Electronic Control Device 22 Components Location 23 Troubleshooting Guide 24 Pipeing System 24 Troubleshooting Guide 25 Exploded View 37 Replacement Parts List 38 Electrical Parts Troubleshoot...

Страница 3: ...ces Do not operate with wet hands or in damp environment Always plug into a grounded outlet Doing so may cause electric shock or fire due to heat generation Doing so may cause electric shock No grounding may cause electric shock See Installation Manual Do not allow water to run into electric parts Always install air leakage breaker and a dedicated switching board Unplug the unit if strange sounds ...

Страница 4: ...hock or damage Doing so can prolong the life of the product Do not place obstacles around the absorption inlet or output Ensure that an installation console of the outdoor appliance is not damaged due to extened use Always insert filters securely Clean them every two weeks Doing so may cause failure of appliance or accident If the previous air conditioner damaged the console there is a risk of the...

Страница 5: ... you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual Service Manual 5 DEFROST HEAT COOL INDOOR DESIRED ENERGY SAVER AIR PURYFIER AUTO RESTART FAN FAN DRY 354 13 29 490 19 3 8 29 1 5 32 18 23 32 126 5 4 31 32 32 510 20 3 32 unit mm inch ...

Страница 6: ... 2 ROW 16STACKS TURBO FAN PROPELLER TYPE FAN WITH SLINGER RING 3 3 6 POLES REMOTE CONTROLLER THERMISTOR VERTICAL LOUVER RIGHT LEFT HORIZONTAL LOUVER UP DOWN SLIDE IN OUT CHASSIS OVERLOAD PROTECTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUDING ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN PIPE OR SPLASHED BY FAN SLINGER 71 32 20 3 32 x 13 7 8 x 193 8 510 x 35 3 x 490 1ø 115 60Hz LW8000ER HBLG1003R MO...

Страница 7: ...r level The setting conditions must be checked prior to initial starting The undermentioned 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 ...

Страница 8: ... 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 BOLT 2 4 NUT 2 5 SCREW TYPE A 16 6 SCREW...

Страница 9: ...th 4 Type A screws at the both sides NOW START 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 Shipping Screws COOL INDOO R D...

Страница 10: ...ype A screws in each support See Figure 7 6 The cabinet should be installed with a very slight tilt about 1 2 downward toward the outside See Figure 8 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 sixteen millimeters and below through the front angle into window stool 5 8 8 Pull each Frame Curtain ...

Страница 11: ...ach the window Locking Bracket with a type C screw See Fig 12 13 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Fig 13 14 Lift the inlet grille and secure it with a type A screw through the front grille See Fig 14 Figure 10 Figure 11 Figure 12 Figure 15 Figure 14 Figure 13 Service...

Страница 12: ...oom Air Conditioner Installation Operation Designed for COOLING ONLY Powerful and quiet cooling Slide in and slide out chassis for the simple installation and service Low air intake top cooled air discharge Built in adjustable Thermistor Washable one touch filter Compact size Reliable and efficient rotary compressor is equipped Power Temp Fan Speed Timer Mode 1 2 3 4 5 F TIMER POWER MODE TEMP FAN ...

Страница 13: ...SELECTOR For increased power while cooling select a higher fan speed 3 steps High Low Med ON OFF TIMER The timer can be set to start and stop the unit in hourly increments up to 12 hours REMOTE CONTROL SENSOR 6 5 4 3 2 1 Push out the cover on the back of the remote control with your thumb Pay attention to polarity and insert two new AAA 1 5V batteries Reattach the cover Do not use rechargeable bat...

Страница 14: ...2 Remove the cabinet 3 Remove the 2 screws which fasten the power cord 4 Disconnect the grounding screw from the evaporator channel 5 Remove the 1 screw which fasten the control box cover 6 Remove 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...

Страница 15: ...ushing the tabs and remove it See Figure 21 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 5 FAN 1 Remove the cabinet 2...

Страница 16: ...l procedure above 2 COMPRESSOR 1 Remove the cabinet 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 4 After purging the unit completely unbraze the suction and discharge tubes at the comp...

Страница 17: ...front panel from the control box See Figure 27 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 spe...

Страница 18: ...ions 5 Remove the condenser 6 Re install the components by referring to notes See Figure 29 2 EVAPORATOR 1 Remove the control box 2 Remove the air guide upper 3 Remove the 2 screws which fasten the evaporator 4 Move the evaporator sideways carefully 5 After discharging the refrigerant completely unbraze the interconnecting tube at the evaporator connections 6 Remove the evaporator 7 Re install the...

Страница 19: ... 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 31B 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 st...

Страница 20: ...of making a vapor 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 31A Pulling Vacuum Figure 31B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Страница 21: ...004A 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 AC DC 51581 12 YEONHO 52044 1245 MO...

Страница 22: ...O DESCRIPTION REMARKS Q TY PER SET MOTOR COMP CAPACITOR DC PCB ASSEMBLY THERMISTOR AIR FILTER ASSEMBLY AC PCB ASSEMBLY WIRING DIAGRAM SWITCH H V ASSEMBLY BK CN MOTOR CN PWR DC12V ZNR01J CN 12V CN HVB RY COMP 3 4 FUSE 250V 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 S Serv...

Страница 23: ... D05D 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 T3 15A RY COMP E05J E02J J8 E01J J6 J2 J3 RY HI PCB 6870A90068D ASSEMBLY 6871A20417C RY MED RY LOW RY 4WAY J7 J4 J1 D01T C02T Q02T CN CON CN 12V CN AC DC 2 DISPLAY P C B ASSEMBLY PCB 6870A90067C ASSEMBLY 6871A20418A ...

Страница 24: ...RESSOR 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 CAPILLAR...

Страница 25: ...as 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 H...

Страница 26: ...n 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 source...

Страница 27: ...Replace AC PCB Ass y Is the connection between AC and DC OK Is the reset circuit good The No 14 of Micom is 5V Check the Fuse Check the wiring diagram Check the Main PCB pattern Replace the Trans Replace D02D D05D Replace IC01D Replace IC02D Replace 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 Possible Trouble 1 The unit does no...

Страница 28: ...oltage No 10 of IC01M 0V Replace IC01M Select the setting Temp to lower Number Wait 3 Minutes Does the Unit delay for 3 minutes Replace 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 OK Check the RY COMP Connect LEAD Wire to RY COMP again NO YES NO 28 Room Air Conditioner ...

Страница 29: ...01M DC 12V Is the voltage NO 16 or 15 or 13 of IC01M 0V Check the RY Hi or RY Med or RY Lo Check the wiring diagram NO NO YES YES NO NO YES YES Is the mode key pushed once more from cool mode Is the voltage No 3 of CN AC DC of AC PCB Ass y DC 5V Reference to OWNER S MANUAL Set the mode key to Energy Saver mode Check the Energy Saver mode key Check the pattern of AC DC PCB Service Manual 29 ...

Страница 30: ...ss y Replace IC01G Replace IC03G Q01G Q02G Q03G for Delux Model Connect connector to CN AC DC exactly Does the IC03G Q01G Q02G Q03G for Delux Model operate normally on DC PCB Ass y Check the PCB pattern Is the voltage of Battery over 2 3V Replace Receiver Ass y Is the connection of CN AC DC OK Is the voltage No 10 of CN AC DC on DC PCB Ass y DC 5V Replace the battery Check the PCB pattern Connect ...

Страница 31: ...AC PCB Ass y Is the connection between AC and DC OK Is the reset circuit OK The No 14 of Micom is 5V Check the Fuse Check the wiring diagram Check the AC PCB pattern Replace the Trans Replace D02D D05D Replace IC01D Replace IC02D Replace IC01A C01A Connect connector exactly Check the PCB pattern NO NO NO NO NO NO NO YES YES YES YES YES YES YES NO YES Possible Trouble 1 The unit does not operate El...

Страница 32: ...M 0V Replace IC01M Select the desired Temp to lower Number Wait 3 Minutes Is the Unit for 3 minutes delay Replace AC 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 OK Check the RY COMP Connect LEAD Wire to RY COMP again NO YES NO 32 Room Air Conditioner Troubleshooting Guide ...

Страница 33: ...13 of IC01M 0V Check the RY Hi or RY Med or RY Lo Check the wiring diagram NO NO YES YES Check the PCB pattern Is the voltage of Battery over 2 3V Replace Receiver Ass y Is the connection of CN AC DC OK Is the voltage No 10 of CN AC DC on AC PCB Ass y DC 5V Replace the battery Check the PCB pattern Connect connector to CN AC DC exactly NO NO NO YES YES YES Service Manual 33 Troubleshooting Guide ...

Страница 34: ... NO NO YES YES YES Are IC01G and IC02G OK Is the connection of CN AC DC OK Replace the DC PCB Ass y Replace IC01G IC02G Replace IC03G Connect connector to CN AC DC exactly Does the IC03G operate normally on AC PCB Ass y 34 Room Air Conditioner Troubleshooting Guide ...

Страница 35: ... 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 motor Chec...

Страница 36: ...he 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 properly sized for the ar...

Страница 37: ...249950 147581 147582 1 559011 349480 552113 352113 263230 268711 1 238310 148000 354210 152302 264110 237200 130410 550140 35211A 554160 567502 135312 135303 352115 Exploded View Exploded View Service Manual 37 267110 352390 1 352390 2 552102 731273 147582 2 554030 ...

Страница 38: ...MP CONDENSER ASSEMBLY FIRST CONDENSER ASSEMBLY BENT COMPRESSOR FAN ASSEMBLY AXIAL O L P CAPACITOR CLAMP SPRING 3041A20021N 3091AR2317N 3531A20097A 3530A20038A 3550A30114A 4758A20019A 4758A20040A 4800A30002C 4998A10012A 5231A20006A 3720A10111C 3831A10021L 4995A20278U 6170A30003C 6323A20004P 6711A20034G 6871A20418A 6871A20417C 4681A20027X 4900A20003A 4948A10014A 5211A10074D 5211A20470B 5211A20228F 5...

Страница 39: ...OLLER ASSEMBLY CLAMP SPRING CAPACITOR DRAWING 3041A20021N 3091AR2317M 3531A20160C 3530A20075B 3550A30226A 4758A20019D 4758A20040A 4758A20040B 4800A30002C 4998A10023C 5231A20006A 3720A10111C 4995A11014A 6871A20417C 3831A10021E 6871A20418A 6323A20004P 6411A20056E 4681A20069H 4900A20003A 4948A10014A 5211A20470L 5211A21786A 5211A10074J 5211A30275M 5239A20012A 5421A10026P ACG32514901 5040AR4195A 2520UC...

Страница 40: ... AC ESCUTCHEON PWB PCB ASSEMBLY MAIN DC THERMISTOR ASSEMBLY POWER CORD ASSEMBLY MOTOR ASSEMBLY SINGLE DAMPER VENTILATION DAMPER VENTILATION ORIFICE TUBE ASSEMBLY EVAPORATOR IN TUBE ASSEMBLY SUCTION SINGLE TUBE ASSEMBLY DISCHARGE SINGLE TUBE ASSEMBLY CONDENSER OUT TUBE ASSEMBLY CAPILLARY AIR GUIDE ASSEMBLY EVAPORATOR ASSEMBLY FIRST CONDENSER ASSEMBLY FIRST ANTI VIBRATION BUSH COMPRESSOR SET FAN AXI...

Страница 41: ...P NO 3828A29003C March 2007 Printed in China ...

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