Service Manual
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website http://www.lgservice.com LG LG Room Air Conditioner SERVICE MANUAL MODELS: LW1800PR LW1800ER LW1800ERZ3 LW1500PR LW1500PRY3 LWP1830WAL LWP1820PDL LWP1820PEL LWC182PLMM0 LWC183PLMD1 LWC212PLMM0 LW1804ER LW1800PRZ3 HBLG1803R CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
website http://www.lgservice.com LG LG Room Air Conditioner SERVICE MANUAL MODELS: LW1800PR LW1800ER LW1800ERZ3 LW1500PR LW1500PRY3 LWP1830WAL LWP1820PDL LWP1820PEL LWC182PLMM0 LWC183PLMD1 LWC212PLMM0 LW1804ER LW1800PRZ3 HBLG1803R CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Service Manual
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Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions...3 Dimensions ...5 Outside dimensions...5 Product Specifications ...6 Installation ...7 Select the Best Location ...7 Installation Check ...7 How to Secure the Drain Pipe ...7 How to ...
Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions...3 Dimensions ...5 Outside dimensions...5 Product Specifications ...6 Installation ...7 Select the Best Location ...7 Installation Check ...7 How to Secure the Drain Pipe ...7 How to ...
Service Manual
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... socket with the ground terminal. • There is risk of fire or electric shock. • There is classified by the following instructions must be followed. Service Manual 3 CAUTION This symbol indicates the possibility of electric shock. s Meanings of death or serious injury. s Incorrect operation due to properties only. The seriousness is risk...
... socket with the ground terminal. • There is risk of fire or electric shock. • There is classified by the following instructions must be followed. Service Manual 3 CAUTION This symbol indicates the possibility of electric shock. s Meanings of death or serious injury. s Incorrect operation due to properties only. The seriousness is risk...
Service Manual
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Dimensions Outside Dimensions D W Cool Energy Saver F1 LOW 'F F2 MED F3 HIGH Fan Dry Timer TEMP MODE TIMER FAN SPEED POWER H Dimension W H D Model mm(inch) mm(inch) mm(inch) ALL MODELS 660(25 31/32) 428(16 27/32) 680(26 27/32) Service Manual 5 NOTICE This symbol indicates special notes. Dimensions Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the risk of electric shock. This symbol alerts you to the air conditioner.
Dimensions Outside Dimensions D W Cool Energy Saver F1 LOW 'F F2 MED F3 HIGH Fan Dry Timer TEMP MODE TIMER FAN SPEED POWER H Dimension W H D Model mm(inch) mm(inch) mm(inch) ALL MODELS 660(25 31/32) 428(16 27/32) 680(26 27/32) Service Manual 5 NOTICE This symbol indicates special notes. Dimensions Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the risk of electric shock. This symbol alerts you to the air conditioner.
Service Manual
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... shade the cabinet. 3. Install the unit where the sunlight does not shine directly on the unit. Connect to leak the condensed water into the room. 8. Service Manual 7 Plastic hose or equivalent may cause the BASE PAN to avoid injury. The following figures Fig. 3 Fig. 4 (by pushing down and away from the fins...
... shade the cabinet. 3. Install the unit where the sunlight does not shine directly on the unit. Connect to leak the condensed water into the room. 8. Service Manual 7 Plastic hose or equivalent may cause the BASE PAN to avoid injury. The following figures Fig. 3 Fig. 4 (by pushing down and away from the fins...
Service Manual
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... base pan handle and pulling forward while bracing the cabinet. Top retainer bar Top retainer bar Foam-PE Screw (Type A) Frame guide Figure 5 Screw (Type A) Service Manual 9 Suggested tool Requirements SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL Preparation of the cabinet.
... base pan handle and pulling forward while bracing the cabinet. Top retainer bar Top retainer bar Foam-PE Screw (Type A) Frame guide Figure 5 Screw (Type A) Service Manual 9 Suggested tool Requirements SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL Preparation of the cabinet.
Service Manual
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... Top retainer bar until it meets. 6. Figure 14 Installation Screw(Type C) Power Cord Screw (Type A) Foam-Strip Window locking bracket TEMP TIME SPFAENED MODE POWER Service Manual 11 Slide the unit into the tabs on the front of room air conditioner is now completed. Attach the Window locking bracket with a screw (Type...
... Top retainer bar until it meets. 6. Figure 14 Installation Screw(Type C) Power Cord Screw (Type A) Foam-Strip Window locking bracket TEMP TIME SPFAENED MODE POWER Service Manual 11 Slide the unit into the tabs on the front of room air conditioner is now completed. Attach the Window locking bracket with a screw (Type...
Service Manual
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... can select the fan speed in three steps high, low or medium. You can select the fan speed in three steps high, low or medium. Service Manual 13
... can select the fan speed in three steps high, low or medium. You can select the fan speed in three steps high, low or medium. Service Manual 13
Service Manual
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Service Manual 15 ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of starting and stopping operation. FAN SPEED SELECTOR Select the fan speed. The room ...
Service Manual 15 ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of starting and stopping operation. FAN SPEED SELECTOR Select the fan speed. The room ...
Service Manual
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... 20) 11. Remove the turbo fan. 13. FAN 1. Remove the brace. 6. Move the condenser to section 4) 3. Disassembly Figure 18 Figure 19 Figure 20 Figure 21 Service Manual 17 Remove the control box. (Refer to section 2) 3. Remove the clamp with a hand plier that secures the fan. 6. Remove the 2 screws that fasten the air...
... 20) 11. Remove the turbo fan. 13. FAN 1. Remove the brace. 6. Move the condenser to section 4) 3. Disassembly Figure 18 Figure 19 Figure 20 Figure 21 Service Manual 17 Remove the control box. (Refer to section 2) 3. Remove the clamp with a hand plier that secures the fan. 6. Remove the 2 screws that fasten the air...
Service Manual
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... attached at the unit.) TEMP MODE CoolCOOL FAN Ene DRY SFavrgery INDOOR FAN HEAT DEFROST Drayn Timer DESIRED PRFEFUFS3EN2A1RASHAEMULYVITIRGOETRFAEDOWHGIRREYTR TIMER SPFAENED ˚C POWER Figure 26 Service Manual 19 9. TEMP MODE CoolCOOL FAN Ene DRY SFavrgery INDOOR FAN HEAT DEFROST Drayn Timer DESIRED PRFEFFUS3E2NA1RAHSAMEULYVITIGOERTRFAEDWHOGIRREYTR TIMER SPFAENED ˚C POWER Disassembly Figure 5 10. Disconnect the...
... attached at the unit.) TEMP MODE CoolCOOL FAN Ene DRY SFavrgery INDOOR FAN HEAT DEFROST Drayn Timer DESIRED PRFEFUFS3EN2A1RASHAEMULYVITIRGOETRFAEDOWHGIRREYTR TIMER SPFAENED ˚C POWER Figure 26 Service Manual 19 9. TEMP MODE CoolCOOL FAN Ene DRY SFavrgery INDOOR FAN HEAT DEFROST Drayn Timer DESIRED PRFEFFUS3E2NA1RAHSAMEULYVITIGOERTRFAEDWHOGIRREYTR TIMER SPFAENED ˚C POWER Disassembly Figure 5 10. Disconnect the...
Service Manual
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... This will not take it on to 30 lbs. Close valves A and B, and observe vacuum gauge for a few minutes, then open . 4. a. Service Manual 21 NOTICE - CAUTION: If high vacuum equipment is now pulling through the access valve which you installed as the system was opened. 2) Connect the charging...charge to drop. Turn off valve B and allow pressure to rise to the pinch-off tool with the two full turns counterclockwise. Braze service valves into the vacuum pump. 3) Operate the vacuum pump vaccum for a few minutes. Braze the pinch-off tool. Do not add the...
... This will not take it on to 30 lbs. Close valves A and B, and observe vacuum gauge for a few minutes, then open . 4. a. Service Manual 21 NOTICE - CAUTION: If high vacuum equipment is now pulling through the access valve which you installed as the system was opened. 2) Connect the charging...charge to drop. Turn off valve B and allow pressure to rise to the pinch-off tool with the two full turns counterclockwise. Braze service valves into the vacuum pump. 3) Operate the vacuum pump vaccum for a few minutes. Braze the pinch-off tool. Do not add the...
Service Manual
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... 1 MOTOR ASSY 2 CAPACITOR 3 COMPRESSOR 4 OVERLOAD PROTECTOR 5 DC PCB ASSEMBLY 6 AC PCB ASSEMBLY 7 THERMISTOR 8 PLASMA FILTER ASSY Schematic Diagram s MODEL : LW1800ERZ3/LW1800PR, HBLG1803R LW1800ER/LWP1830WAL 1 BK CN-MOTOR GN/YL BL (GN) MOTOR RD YL OR CN-AC/DC CN-AC/DC 5 DC PCB ASSEMBLY RY-LOW RY...PCB ASSEMBLY OLP 4 WIRING DIAGRAM 3854AR3563N AIR FILTER ASSEMBLY 8 s MODEL : LW1500PRY3/LW1500PR LW1800PRZ3/LW1804ER LWC182PLMD1 1 5 7 2 6 3 4 8 Q'TY PER SET 1 1 1 1 1 1 1 1 S: Service Parts N: Non Service Parts REMARKS S S S S S S S S Service Manual 25
... 1 MOTOR ASSY 2 CAPACITOR 3 COMPRESSOR 4 OVERLOAD PROTECTOR 5 DC PCB ASSEMBLY 6 AC PCB ASSEMBLY 7 THERMISTOR 8 PLASMA FILTER ASSY Schematic Diagram s MODEL : LW1800ERZ3/LW1800PR, HBLG1803R LW1800ER/LWP1830WAL 1 BK CN-MOTOR GN/YL BL (GN) MOTOR RD YL OR CN-AC/DC CN-AC/DC 5 DC PCB ASSEMBLY RY-LOW RY...PCB ASSEMBLY OLP 4 WIRING DIAGRAM 3854AR3563N AIR FILTER ASSEMBLY 8 s MODEL : LW1500PRY3/LW1500PR LW1800PRZ3/LW1804ER LWC182PLMD1 1 5 7 2 6 3 4 8 Q'TY PER SET 1 1 1 1 1 1 1 1 S: Service Parts N: Non Service Parts REMARKS S S S S S S S S Service Manual 25
Service Manual
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Check gas leakage. Clean condenser. Malfunction of unit if the unit is beyond repair. Service Manual 29 The one is called Starting Failure which is caused from an electrical defect, and the other is classified in two kinds. Unit runs but ...
Check gas leakage. Clean condenser. Malfunction of unit if the unit is beyond repair. Service Manual 29 The one is called Starting Failure which is caused from an electrical defect, and the other is classified in two kinds. Unit runs but ...
Service Manual
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... • Check the Main PCB pattern. YES • Replace IC01A, C02A. • Connect connector exactly. YES Is shorted the Trans. YES • Replace the Trans. Service Manual 31 Is output Voltage of Micom is 5V.) YES Is the connection between NO AC and DC OK? Is the reset circuit OK? YES •...
... • Check the Main PCB pattern. YES • Replace IC01A, C02A. • Connect connector exactly. YES Is shorted the Trans. YES • Replace the Trans. Service Manual 31 Is output Voltage of Micom is 5V.) YES Is the connection between NO AC and DC OK? Is the reset circuit OK? YES •...
Service Manual
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... No.3 of NO CN-AC/DC of Energy Saver does not operate. Troubleshooting Guide • Replace IC01M. • Replace IC01M. YES • Reference to OWNER'S MANUAL. • Set the mode key to Energy Saver mode. • Check the Energy Saver mode key. • Check the pattern of IC01M 0V? YES Is... 15 or 13 NO of AC & DC PCB. YES • Check the RY-Hi or RY-Med or RY-Lo. • Check the wiring diagram. Service Manual 33 Is the mode NO key pushed once more from cool mode? Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 NO...
... No.3 of NO CN-AC/DC of Energy Saver does not operate. Troubleshooting Guide • Replace IC01M. • Replace IC01M. YES • Reference to OWNER'S MANUAL. • Set the mode key to Energy Saver mode. • Check the Energy Saver mode key. • Check the pattern of IC01M 0V? YES Is... 15 or 13 NO of AC & DC PCB. YES • Check the RY-Hi or RY-Med or RY-Lo. • Check the wiring diagram. Service Manual 33 Is the mode NO key pushed once more from cool mode? Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 NO...
Service Manual
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... Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? output shorted? YES • Replace IC01A, C01A. • Connect connector exactly. Service Manual 35
... Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? output shorted? YES • Replace IC01A, C01A. • Connect connector exactly. Service Manual 35
Service Manual
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...; Connect connector to CN-AC/DC exactly. Possible Trouble 4 FAN does not operate. YES Is the voltage No.10 NO of Battery NO over 2.3V? Service Manual 37 Possible Trouble 5 Remote controller does not operate. Is the voltage of CN-AC/DC on AC PCB Ass'y DC 5V? YES Is the voltage...
...; Connect connector to CN-AC/DC exactly. Possible Trouble 4 FAN does not operate. YES Is the voltage No.10 NO of Battery NO over 2.3V? Service Manual 37 Possible Trouble 5 Remote controller does not operate. Is the voltage of CN-AC/DC on AC PCB Ass'y DC 5V? YES Is the voltage...
Service Manual
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... to the base. If not, replace fan motor. Replace cord if circuit is open , or damaged. Check voltage. If not within limits, call an electrician. Service Manual 39 Connect wire. Replace if shorted, open . If cracked, out of balance, or partially missing, replace it . If cracked, out of balance, or partially missing...
... to the base. If not, replace fan motor. Replace cord if circuit is open , or damaged. Check voltage. If not within limits, call an electrician. Service Manual 39 Connect wire. Replace if shorted, open . If cracked, out of balance, or partially missing, replace it . If cracked, out of balance, or partially missing...
Service Manual
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... 6711A20052A 6871A20323A 6871A20271B 4900A20004A 4948A30008A 4960AR2895B 5211A30066N 5211A20441A 5239A20002A 5239A20003A 5421A20091A 5901A20009A 4H00982C 5211A30275R 5403A20062B 5901A20010A 6750U-L016A 6120AR2194F 3H02932C 5210A21099E 5210A21099F 2520UMKK2AA 4681A20011M REMARK Service Manual 43
... 6711A20052A 6871A20323A 6871A20271B 4900A20004A 4948A30008A 4960AR2895B 5211A30066N 5211A20441A 5239A20002A 5239A20003A 5421A20091A 5901A20009A 4H00982C 5211A30275R 5403A20062B 5901A20010A 6750U-L016A 6120AR2194F 3H02932C 5210A21099E 5210A21099F 2520UMKK2AA 4681A20011M REMARK Service Manual 43