Service Manual
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website http://www.lgservice.com LG LG Room Air Conditioner SERVICE MANUAL MODEL: LWHD8000R,LWHD8000RY5,LWHD1000R,LWHD8000RY6 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 MODEL: LWHD8000R,LWHD8000RY5,LWHD1000R,LWHD8000RY6 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 ...6 Outside Dimensions ...6 Product Specifications ...7 Installation ...8 Select the Best Location ...8 Installation Check ...8 How to Secure the Drain Pipe ...8 How to Install...9 Operation ...12 Function of Controls ...12 Disassembly ...13 Mechanical Parts...13 Air handling Parts...14 Electrical Parts ...15 Refrigerating Cycle...17 Schematic Diagram...20...
Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions...3 Dimensions ...6 Outside Dimensions ...6 Product Specifications ...7 Installation ...8 Select the Best Location ...8 Installation Check ...8 How to Secure the Drain Pipe ...8 How to Install...9 Operation ...12 Function of Controls ...12 Disassembly ...13 Mechanical Parts...13 Air handling Parts...14 Electrical Parts ...15 Refrigerating Cycle...17 Schematic Diagram...20...
Service Manual
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...• Otherwise, it is loose or damaged. Do not use an unspecified power cord. • It will cause electric shock or fire. Use the air conditioner on a single outlet circuit. Do not operate with other appliances. • It will cause electric shock or fire. ON Do not modify power cord ... • It will cause electric shock or fire. Always plug into a grounded outlet. • No grounding may cause explosion, fire, and burn. 4 Room Air Conditioner shock. ON Do not damage or use the socket if it will cause electric shock or fire. Ventilate before operating...
...• Otherwise, it is loose or damaged. Do not use an unspecified power cord. • It will cause electric shock or fire. Use the air conditioner on a single outlet circuit. Do not operate with other appliances. • It will cause electric shock or fire. ON Do not modify power cord ... • It will cause electric shock or fire. Always plug into a grounded outlet. • No grounding may cause explosion, fire, and burn. 4 Room Air Conditioner shock. ON Do not damage or use the socket if it will cause electric shock or fire. Ventilate before operating...
Service Manual
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... replaced immediately. Safety Precautions If water enters the product, turn off the the power switch of the main body of machine. Do not clean the air conditioner with water. • Water may cause injury. Ensure that the outer case is not damaged by age or wear. • If the outer case is...
... replaced immediately. Safety Precautions If water enters the product, turn off the the power switch of the main body of machine. Do not clean the air conditioner with water. • Water may cause injury. Ensure that the outer case is not damaged by age or wear. • If the outer case is...
Service Manual
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... Saver F1 LOW 'F F2 MED F3 HIGH Fan Dry Timer TEMP MODE TIMER FAN SPEED POWER 315 (12 3/8") 6 Room Air Conditioner NOTICE This symbol indicates special notes. This symbol alerts you to the air conditioner. Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the...
... Saver F1 LOW 'F F2 MED F3 HIGH Fan Dry Timer TEMP MODE TIMER FAN SPEED POWER 315 (12 3/8") 6 Room Air Conditioner NOTICE This symbol indicates special notes. This symbol alerts you to the air conditioner. Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the...
Service Manual
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... about 1/4"). Connect to the outside of the cabinet must remain exposed on the unit. To prevent vibration and noise, make sure the air conditioner is provided in front of the air conditioner. The outside . 5. Restriction of the condenser. Grounding wire (Green or Green and Yellow) is installed securely. 4 Avoid placing furniture or draperies in...
... about 1/4"). Connect to the outside of the cabinet must remain exposed on the unit. To prevent vibration and noise, make sure the air conditioner is provided in front of the air conditioner. The outside . 5. Restriction of the condenser. Grounding wire (Green or Green and Yellow) is installed securely. 4 Avoid placing furniture or draperies in...
Service Manual
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...Figure 6 INNER SILL ROOM SIDE CENTER LINE Figure 7 INNER SILL OUTER SILL TYPE A INSIDE CENTER LINE 3. IMPORTANT : When the air conditioner drops into the guides of the bottom window. (Figure. 6) NOW START INSTALLATION 1. Personal injury or property damage may result if unit...9 WINDOW FRAME UPPER GUIDE C enter Line SEAL BOTTOM GUIDE ABOUT 1/4" 10 Room Air Conditioner Figure 10 L BRACKET INSTALL THE AIR CONDITIONER IN THE WINDOW a. ATTACH L BRACKET a. b. While steadying the air conditioner, carefully bring the window sash down behind the inner window sill, with screws ...
...Figure 6 INNER SILL ROOM SIDE CENTER LINE Figure 7 INNER SILL OUTER SILL TYPE A INSIDE CENTER LINE 3. IMPORTANT : When the air conditioner drops into the guides of the bottom window. (Figure. 6) NOW START INSTALLATION 1. Personal injury or property damage may result if unit...9 WINDOW FRAME UPPER GUIDE C enter Line SEAL BOTTOM GUIDE ABOUT 1/4" 10 Room Air Conditioner Figure 10 L BRACKET INSTALL THE AIR CONDITIONER IN THE WINDOW a. ATTACH L BRACKET a. b. While steadying the air conditioner, carefully bring the window sash down behind the inner window sill, with screws ...
Service Manual
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...to secure them, as shown in Figure. 11. 5. keeping a firm grip on the air conditioner, raise the sash, and carefully tilt the air conditioner backward, draining any condensate water. NOTICE REMOVAL FROM WINDOW Trun the air conditioner off, disconnect the power cord, remove the L bracket and the screws installed through the... top and bottom of room air conditioner is now completed. See ELECTRICAL DATA for reinstallation later. SECURE THE GUIDE PANELS Extend the guide panels (TYPE F) to fill the window ...
...to secure them, as shown in Figure. 11. 5. keeping a firm grip on the air conditioner, raise the sash, and carefully tilt the air conditioner backward, draining any condensate water. NOTICE REMOVAL FROM WINDOW Trun the air conditioner off, disconnect the power cord, remove the L bracket and the screws installed through the... top and bottom of room air conditioner is now completed. See ELECTRICAL DATA for reinstallation later. SECURE THE GUIDE PANELS Extend the guide panels (TYPE F) to fill the window ...
Service Manual
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...Energy Save mode is selected, the fan stops when the compressor stops cooling.a Approximately every 3 minutes the fan will start. POWER BUTTON To turn the air conditioner OFF, push the button again. If the unit is needed. Starting operation (1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours... this button controls the time it will turn off ➔ 1Hour ➔ 2Hours ➔ ... ) REMOCON SIGNAL RECEIVER 12 Room Air Conditioner FAN SPEED SELECTOR Every time you push this button controls the time it will be set the time when the unit will not function ...
...Energy Save mode is selected, the fan stops when the compressor stops cooling.a Approximately every 3 minutes the fan will start. POWER BUTTON To turn the air conditioner OFF, push the button again. If the unit is needed. Starting operation (1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours... this button controls the time it will turn off ➔ 1Hour ➔ 2Hours ➔ ... ) REMOCON SIGNAL RECEIVER 12 Room Air Conditioner FAN SPEED SELECTOR Every time you push this button controls the time it will be set the time when the unit will not function ...
Service Manual
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... Move the evaporator forward and pulling it . (See Figure 16) 11. Remove the cabinet. (Refer to section 2) 3. Remove the clamp that fasten the air guide upper. 7. Re-install by referring to the removal procedure. 6. Re-install the components by referring to the removal procedure, above . 5. Remove the ... the shroud. (See Figure 18) 3. Remove the turbo fan. 13. Remove the clamp with hand pliers which fasten the condenser. 4. Air Guide and Turbo Fan 1. Remove the brace (Refer to the removal procedure, above . 14 Room Air Conditioner Figure 15 Figure 16 Figure 17 Figure 18
... Move the evaporator forward and pulling it . (See Figure 16) 11. Remove the cabinet. (Refer to section 2) 3. Remove the clamp that fasten the air guide upper. 7. Re-install by referring to the removal procedure. 6. Re-install the components by referring to the removal procedure, above . 5. Remove the ... the shroud. (See Figure 18) 3. Remove the turbo fan. 13. Remove the clamp with hand pliers which fasten the condenser. 4. Air Guide and Turbo Fan 1. Remove the brace (Refer to the removal procedure, above . 14 Room Air Conditioner Figure 15 Figure 16 Figure 17 Figure 18
Service Manual
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... from the control box. (Refer to the above removal procedure, above .(See Figure 23) 16 Room Air Conditioner Figure 22 Figure 23 Pull out the power cord. 6. Remove the motor. 6. Open the top cover from the air guide. (See Figure 23) 5. Power Cord 1. If the supply cord of this appliance is damaged, it...
... from the control box. (Refer to the above removal procedure, above .(See Figure 23) 16 Room Air Conditioner Figure 22 Figure 23 Pull out the power cord. 6. Remove the motor. 6. Open the top cover from the air guide. (See Figure 23) 5. Power Cord 1. If the supply cord of this appliance is damaged, it...
Service Manual
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... entire system. Leave the valve in the system. After discharging the unit completely, remove the desired component, and unbraze the pinch-off connection. 18 Room Air Conditioner Evacuate as follows. 1) Connect the vacuum pump, as shown in the system. 6) When satisfied the unit is used, just crack valves A and B for 20 to...
... entire system. Leave the valve in the system. After discharging the unit completely, remove the desired component, and unbraze the pinch-off connection. 18 Room Air Conditioner Evacuate as follows. 1) Connect the vacuum pump, as shown in the system. 6) When satisfied the unit is used, just crack valves A and B for 20 to...
Service Manual
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Schematic Diagram Schematic Diagram Electronic Control Device 20 Room Air Conditioner CN-TELE SMW200-03 (RD) 33 22 11 5V C01T 0.1 50V PIPE-TH CN-TH2 SMW250-02 11 22 C02T 0.001 D01T 1N4148 Q04T A104M ... 5V C05D + C06D 220 0.01 10V 50V 11 12V 12 CN-AC/DC 5V 51581-12(YEONHO) 52044-1245(MOLEX) ANGLE RY-COMP G4A-1A-E-LG ZNR01J SVC271D-14A SVC271D-14A FUSE 250VT3.15A POWER TRANS 1 7 D02D D05D 2 D03D 4 D04D + C01D D02D~D05D 1000 1N4004 35V 12V IC01D O I 7812 + C02D C03D...
Schematic Diagram Schematic Diagram Electronic Control Device 20 Room Air Conditioner CN-TELE SMW200-03 (RD) 33 22 11 5V C01T 0.1 50V PIPE-TH CN-TH2 SMW250-02 11 22 C02T 0.001 D01T 1N4148 Q04T A104M ... 5V C05D + C06D 220 0.01 10V 50V 11 12V 12 CN-AC/DC 5V 51581-12(YEONHO) 52044-1245(MOLEX) ANGLE RY-COMP G4A-1A-E-LG ZNR01J SVC271D-14A SVC271D-14A FUSE 250VT3.15A POWER TRANS 1 7 D02D D05D 2 D03D 4 D04D + C01D D02D~D05D 1000 1N4004 35V 12V IC01D O I 7812 + C02D C03D...
Service Manual
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ASSEMBLY PCB:6870A90067C ASSEMBLY:6871A20418A 22 Room Air Conditioner Schematic Diagram Components Location 1. MAIN P.C.B ASSEMBLY CN-CON J1 CN-AC/DC CN-12V D02D D03D D04D D05D IC01D J5 CN-HVB C03T J4 Q02T R01T Q01T J6 D01T C02T J7 CN-TELE CN-TH2 Q03T Q04T J3 RY-HI QIC02DT J2 HEAT SINK RY-MED RY-LOW C02D C04D C05D C01D PCB:6870A90068D CN-MOTOR CN-PWR ZNR01J R01J CN-4WAY C01J E03J E02J E01J J8 RY-4WAY RY-COMP ASSEMBLY:6871A20417C POWER TRANS FUSE 250V/T3.15A E04J E05J 2. DISPLAY P.C.B.
ASSEMBLY PCB:6870A90067C ASSEMBLY:6871A20418A 22 Room Air Conditioner Schematic Diagram Components Location 1. MAIN P.C.B ASSEMBLY CN-CON J1 CN-AC/DC CN-12V D02D D03D D04D D05D IC01D J5 CN-HVB C03T J4 Q02T R01T Q01T J6 D01T C02T J7 CN-TELE CN-TH2 Q03T Q04T J3 RY-HI QIC02DT J2 HEAT SINK RY-MED RY-LOW C02D C04D C05D C01D PCB:6870A90068D CN-MOTOR CN-PWR ZNR01J R01J CN-4WAY C01J E03J E02J E01J J8 RY-4WAY RY-COMP ASSEMBLY:6871A20417C POWER TRANS FUSE 250V/T3.15A E04J E05J 2. DISPLAY P.C.B.
Service Manual
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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 refrigeration circuit. Repair gas leak. Clean condenser. Check inside gas pressure. Check gas ...Guide In general, possible trouble is classified in refrigeration circuit. 24 Room Air Conditioner Satisfactory operation with temperature difference of inlet & outlet air ; 44~50°F(7~10°C) Replacement of compressor. Ineffective Cooling Check cold air circulation for smooth flow. Dirty indoor coil (Heat exchanger) Malfunction of fan...
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 refrigeration circuit. Repair gas leak. Clean condenser. Check inside gas pressure. Check gas ...Guide In general, possible trouble is classified in refrigeration circuit. 24 Room Air Conditioner Satisfactory operation with temperature difference of inlet & outlet air ; 44~50°F(7~10°C) Replacement of compressor. Ineffective Cooling Check cold air circulation for smooth flow. Dirty indoor coil (Heat exchanger) Malfunction of fan...
Service Manual
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... Is the connection between NO AC and DC OK? Is shorted the Trans. YES Replace AC PCB Ass'y. • Check the PCB pattern. 26 Room Air Conditioner YES ••CChheecckktthheeFFuussee.. ••CChheecckkththeewwiriirninggddiaiaggraramm. . NO Is the voltage No.18 of IC02D NO DC 5V? YES Is output Voltage of Micom DC...
... Is the connection between NO AC and DC OK? Is shorted the Trans. YES Replace AC PCB Ass'y. • Check the PCB pattern. 26 Room Air Conditioner YES ••CChheecckktthheeFFuussee.. ••CChheecckkththeewwiriirninggddiaiaggraramm. . NO Is the voltage No.18 of IC02D NO DC 5V? YES Is output Voltage of Micom DC...
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YES Is the voltage NO.16 or 15 or 13 NO of AC & DC PCB. 28 Room Air Conditioner YES • Reference to OWNER'S MANUAL. • Set the mode key to Energy Saver mode. • Check the Energy Saver mode key. • Check the ...
YES Is the voltage NO.16 or 15 or 13 NO of AC & DC PCB. 28 Room Air Conditioner YES • Reference to OWNER'S MANUAL. • Set the mode key to Energy Saver mode. • Check the Energy Saver mode key. • Check the ...
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... OK? NO • Check the AC PCB pattern. Is the reset circuit OK? YES Replace AC PCB Ass'y. • Check the PCB pattern. 30 Room Air Conditioner YES Is the Trans output power NO about AC 14V? YES • Replace IC01A, C01A. • Connect connector exactly. Is the NO Trans input power...
... OK? NO • Check the AC PCB pattern. Is the reset circuit OK? YES Replace AC PCB Ass'y. • Check the PCB pattern. 30 Room Air Conditioner YES Is the Trans output power NO about AC 14V? YES • Replace IC01A, C01A. • Connect connector exactly. Is the NO Trans input power...
Service Manual
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... Ass'y. • Replace IC01M. • Replace IC01M. • Replace the battery. ••CChheecckk tthheePPCCBBpaptatettrenr.n. • Connect connector to CN-AC/DC exactly. 32 Room Air Conditioner YES Is the voltage No.10 NO of IC01M DC 5V? YES • Check the RY-Hi or RY-Med or RY-Lo. • Check...
... Ass'y. • Replace IC01M. • Replace IC01M. • Replace the battery. ••CChheecckk tthheePPCCBBpaptatettrenr.n. • Connect connector to CN-AC/DC exactly. 32 Room Air Conditioner YES Is the voltage No.10 NO of IC01M DC 5V? YES • Check the RY-Hi or RY-Med or RY-Lo. • Check...
Service Manual
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... hits the base, shim up the bottom of manufacturer's rating. If not within limits, call an electrician. If not per wiring diagram, correct. 34 Room Air Conditioner If none, check power supply cord. Replace cord if circuit is open , or damaged. Test capacitor. if motor shaft will not run , but fan motor...
... hits the base, shim up the bottom of manufacturer's rating. If not within limits, call an electrician. If not per wiring diagram, correct. 34 Room Air Conditioner If none, check power supply cord. Replace cord if circuit is open , or damaged. Test capacitor. if motor shaft will not run , but fan motor...