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LG AS-C0914DH0, Svc Manual

Introducing the LG AS-C0914DH0, a top-of-the-line air conditioner designed to maximize your comfort. You can easily optimize its settings with the help of the comprehensive Svc Manual. To access this essential resource, simply head over to manualshive.com and download the user manual for free.

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

Safety Precautions..........................................................................................................................................3
Dimensions......................................................................................................................................................9

Symbols Used in this Manual .....................................................................................................................9
Indoor Unit..................................................................................................................................................9
Outdoor Unit .............................................................................................................................................11

Installation .....................................................................................................................................................14

Selection of the Best Location..................................................................................................................17
Piping Length and Elevation.....................................................................................................................18
How to Fix Installation Plate .....................................................................................................................19
Drill a Hole in the Wall ..............................................................................................................................19
Drain hose junction...................................................................................................................................19

Flaring work and connection of piping .......................................................................................................20

Flaring work..............................................................................................................................................20
Connection of Piping Indoor .....................................................................................................................21
Connection of the Pipes-Outdoor .............................................................................................................26

Connecting the cable between indoor unit and outdoor unit ...................................................................27

Connect the Cable....................................................................................................................................27

Checking the drainage and forming the pipings........................................................................................29

Checking the Drainage.............................................................................................................................29
Form the Piping ........................................................................................................................................30

AIR PURGING ................................................................................................................................................31

Air purging ................................................................................................................................................31
Air purging with vacuum pump .................................................................................................................31

Test Running .................................................................................................................................................34
Operation .......................................................................................................................................................35

Function of Controls .................................................................................................................................35
Display Function ......................................................................................................................................39
Self-diagnosis Function ............................................................................................................................39
Remote Control Operations......................................................................................................................40

Disassembly ..................................................................................................................................................41

Indoor Unit................................................................................................................................................41

Troubleshooting Guide .................................................................................................................................44

Refrigeration Cycle Diagram ....................................................................................................................44
2-way,  3-way Valve  .................................................................................................................................45
Cycle Parts ...............................................................................................................................................51
Electronic Parts ........................................................................................................................................52

Schematic Diagram.......................................................................................................................................62

Electric Control Device .............................................................................................................................62
Wiring Diagram.........................................................................................................................................65
Components Location ..............................................................................................................................67

Product Specifications .................................................................................................................................72
Exploded View...............................................................................................................................................74

Summary of Contents for AS-C0914DH0

Page 1: ...121E1H0 LS180CP AS C1835DM0 LS240CP AS C2435DM0 LS090HP AS H091E1H0 LS120HP AS H121E1H0 LS180HP AS H1835DM0 LS240HP AS H2435DM0 CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Page 2: ...of Piping Indoor 21 Connection of the Pipes Outdoor 26 Connecting the cable between indoor unit and outdoor unit 27 Connect the Cable 27 Checking the drainage and forming the pipings 29 Checking the Drainage 29 Form the Piping 30 AIR PURGING 31 Air purging 31 Air purging with vacuum pump 31 Test Running 34 Operation 35 Function of Controls 35 Display Function 39 Self diagnosis Function 39 Remote C...

Page 3: ...e possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Installation Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electri cian or an Authorized Service Center There is risk of fire or electric shock Always use the power plug and socket with th...

Page 4: ...tallation area does not deteriorate with age If the base collapses the air con ditioner could fall with it causing property damage product failure and personal injury Install the indoor unit on the wall where the height from the floors more then 8ft 2 4m There are sharp moving parts that could cause personal injury Do not handle the pipe by your self customer High Pressure refrigent may cause pers...

Page 5: ...ome ventilation by opeing win dow is necessary for the fresh air When flammable gas leaks turn off the gas and open a window for venti lation before turning the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire Unplug the unit if strange sounds odors or smoke comes from it There is risk of fireproduct failure and or electric shock Stop operation and ...

Page 6: ... could step on or fall onto the outdoor unit There could result in personal injury and product damage Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There are sharp and moving parts that could cause personal injury Always check for gas refriger ant leakage after installation or repair of product Low refrigerant levels may cause product ...

Page 7: ...ses such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the...

Page 8: ...r maintaining the air conditioner Be careful and avoid personal injury Replace all the batteries in the remote There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn or explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote if the batteries have leaked T...

Page 9: ...840 33 1 894 35 2 894 35 2 H mm inch 270 10 6 295 11 6 295 11 6 D mm inch 153 6 0 165 6 5 165 6 5 Model Dimension 9 Btu Series C O 9 Btu Series H P 12 Btu Series Indoor Unit This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual ...

Page 10: ...l right reserved Only for training and service purposes LGE Internal Use Only D H W Installation plate Dimensions W mm inch 1090 42 9 1090 42 9 H mm inch 300 11 8 300 11 8 D mm inch 178 7 0 178 7 0 Model Dimension 18 Btu Series 24 Btu Series ...

Page 11: ...s LGE Internal Use Only Dimensions Outdoor Unit 1 9k 12k W L2 L3 L1 D H L4 L5 Gas side 3 way valve Liquid side 2 way valve MODEL 9k 12k DIM unit W mm inch 770 30 3 H mm inch 540 21 3 D mm inch 245 9 6 L1 mm inch 287 11 3 L2 mm inch 64 2 5 L3 mm inch 518 20 4 L4 mm inch 10 0 4 L5 mm inch 100 3 9 ...

Page 12: ...mensions 2 18k 24k W L6 L5 L7 L8 D L1 L2 L9 L10 L3 L4 H MODEL 18k 24k DIM W mm inch 870 34 3 H mm inch 655 25 8 D mm inch 320 12 6 L1 mm inch 370 14 6 L2 mm inch 25 1 0 L3 mm inch 630 24 8 L4 mm inch 25 1 0 L5 mm inch 546 21 5 L6 mm inch 162 6 4 L7 mm inch 162 6 4 L8 mm inch 54 2 1 L9 mm inch 74 5 2 9 L10 mm inch 79 3 1 ...

Page 13: ... electric shock This symbol alerts you to hazards that may cause harm to the air condi tioner This symbol indicates special notes NOTICE Symbols Used In This Manual Features Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate Air Outlet Vents Air Intake Vents Piping Connecting Wires Drain Hose Signal Receptor Base Plate Front Panel Air Inlet Air Filter ...

Page 14: ...c anchor Type B screw Remote Control Holder Installation plate Figure Figure Name Screw driver Electric Drill Measuring Tape Knife Hole Core Drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer Level Flaring Tool Set Name Installation Parts Installation Tools Read carefully and then follow step by step Installation ...

Page 15: ...Wide Apply after carrying out a drainage test To carry out the drainage test remove the air filters and pour water into the heat exchanger Saddle Gas side piping Liquid side piping Additional drain pipe Drain Hose Base Plate Air Inlet Vents Connecting cable Installation Plate Sleeve Bushing Sleeve Putty Gum Type Sealer Bend the pipe as closely on the wall as possible but be careful that it doesn t...

Page 16: ...pressor s oil has the high absorption rate of moisture 3 Composition R 410A R32 R125 50 50wt NOTE Never mix with other refrigerants 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A syst...

Page 17: ...oftop mounting If the outdoor unit is installed on roof structures or walls this may result in excessive noise and vibra tion and may be also classed as non serviceable installation Indoor unit 1 Do not have any heat or steam near the unit 2 Select a place where there are no obstacles in front of the unit 3 Make sure that condensation drainage can be conveniently routed away 4 Do not install near ...

Page 18: ... be installed every 5 7meters 16 4 23 0ft Pipe Size Capacity Btu h Suction Evap Max length A m ft Additional Refrigerant g m oz ft Max Elevation B m ft Standard Length m ft In case more than 5m 16 4ft Outdoor unit Indoor unit A B A Oil trap Outdoor unit Indoor unit B 9k C O 3 8 1 4 7 5 25 7 5 25 15 49 20 0 22 9k H P 12k 1 2 1 4 7 5 25 7 5 25 15 49 20 0 22 18k C O 1 2 1 4 7 5 25 15 49 30 98 20 0 22...

Page 19: ...ll the piping hole with a ø70mm 2 76in hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the out door side Drill a Hole In The Wall 5 7mm 0 2 0 3 Indoor WALL Outdoor 2 Measure the wall and mark the centerline It is also important to use caution concerning the location of the instal lation plate routing of the wiring to power outlets is through ...

Page 20: ... to avoid drop ping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work Carry out flaring work using flaring tool as shown below Main cause for gas leakage is due to defect in flaring work Carry out correct flaring work in the follow ing proced...

Page 21: ... Tape the tubing drain hose and the connecting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit If the drain hose is routed inside the room insu late the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equiva...

Page 22: ...cting the pipings to the indoor unit and drain hose to drain pipe Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants Align the center of the pipings and sufficiently tighten the flare nut by hand Indoor unit tubing Flare nut Pipings Drain hose Ø6 35 1 4 1 8 Ø9 52 3 8 4 2 Ø12 7 1 2 5 5 Ø15 88 5 8 6 6 Outside diameter mm inch Torq...

Page 23: ...installation Hook the indoor unit onto the upper portion of the installation plate Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Vinyl tape Adhesive Drain hose Indoor unit drain hose narrow When extending the drain h...

Page 24: ...Vinyl tape narrow Pipe Wrap with vinyl tape wide Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Piping for passage through piping hole Drain hose Connecting cable Wrap the area which accommodates the rear piping housing section with vinyl tape Vinyl tape narrow Connection pipe Connecting cable Ind...

Page 25: ...purposes LGE Internal Use Only Installation Information For left piping Follow the instruction below Correct case Press on the upper side of clamp and unfold the tubing to downward slowly Incorrect case Following bending type from right to left may cause damage to the tubing Installation ...

Page 26: ...ain pan Rubber cap Drain hose Exchange if necessary Remove the drain hose Securely insert both the rubber plug and drain hose into the drain outlets Be sure the rubber the cap is securely fastened so that there is no leakage Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening fol lows the arro...

Page 27: ... size each wire allowing sev eral inches longer than the required length for wiring 7 Use lock nuts to secure the conduit tubes 1 shows field wiring 2 Separately wire the high and low voltage line 3 Use heat proof electrical wiring capable of withstanding temperatures up to 167 F 4 Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit F...

Page 28: ...loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 Confirm that the starting voltage is maintained at more than 90 percent of the rated volt age marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Al...

Page 29: ...ose of the indoor unit without any leakage and goes out the drain exit Drain piping The drain hose should point downward for easy drain flow Drain pan Drain hose Leakage checking Connecting area drain hose Leakage checking Downward slope Avoid these situations Do not raise Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Water leakage Ditch Less than 50mm gap Wate...

Page 30: ... the following Tape the piping drain hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent Taping Drain hose Pipings Connecting cable Trap is required to prevent water from entering into electrical parts Seal small openings around pipings with a gum type sealer In cases where the Outdoor unit is installed above the Indoor unit perform...

Page 31: ...he outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage Leak test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylin der valve when the gauge reading reached 150 P S I G Next...

Page 32: ...e port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 1 Remove the caps from the gas side and liquid side valves 2 Remove the service port cap...

Page 33: ... R 410A per meter foot Example A 30ft line set is used 5 additional ft X 0 22 ounce per foot add 1 1 ounces of R 410A Important If you are ever uncertain of the unit charge reclaim evacuate and weigh in the correct charge using the unit nameplate charge adjusting for line sets longer or shorter than 7 5m 25ft Confirm the refrigerant R 410A Use manifold gauge and hose for R 410A Pipe Size Capacity ...

Page 34: ...e NOTE If the actual pressure are higher than shown the system is most likely over charged and charge should be removed If the actual pressure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use Bolt Tubing connection This is performed when the unit is to be relocated or the refrigerant circuit is serviced Pump Down means ...

Page 35: ...defrost control Cooling Mode Operation When the intake air temperature reaches 0 5 C below the setting temp the compressor and the out door fan stop When it reaches 0 5 C above the setting temp they start to operate again Compressor ON Temp Setting Temp 0 5 C Compressor OFF Temp Setting Temp 0 5 C While in compressor running operating with the airflow speed set by the remote control While in compr...

Page 36: ...ter 40 min heating mode operation at 4 min interval whether to carry out defrost control or not and the time of defrost control are determined according to the following conditions 1 While in heating mode operation the maximum of the indoor pipe temperature is measured and it is compared with the present indoor pipe temperature to get the difference of the indoor pipe temper atures the maximum tem...

Page 37: ... Chaos Simulation Jet Cool Mode Operation C O Model If the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input whi...

Page 38: ...case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cooling cycle operation mode the compressor and the outdoor fan are turned off in ...

Page 39: ...oling Model Cooling Soft Dry Fan Heating Cooling Soft Dry Fan Hot start Deice Operation Indicator Deicer Indicator Operation Indicator Compressor on Indicator 3sec 3sec 3sec once Error Code 1 Error Display LED Indoor body operation LED Error contents Indoor room temperature thermistor open short Indoor pipe temperature thermistor open short Indoor Thermistor assembly check SVC check point ...

Page 40: ...R SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation See page 22 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation See page 22 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating See page 23 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 NEO PLASMA OPTIONAL Used to star...

Page 41: ...e sure the power switch is set to OFF To remove the Grille from the Chassis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the othe...

Page 42: ...move securing screws Pull the control box out from the chassis carefully 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA Screw When repair do not damage the Caution label ...

Page 43: ...b is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self ...

Page 44: ... OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER HEAT EXCHANGE CONDENSER COMPRESSOR COMPRESSOR ACCUMU LATOR GAS SIDE GAS SIDE 3 WAY VALVE LIQUID SIDE LIQUID SIDE 3 WAY VALVE CAPILLARY TUBE CAPILLARY TUBE CHECK VALVE Heating Model only COOLING HEATING REVERSING VALVE Heating Model Only 1 Cooling Only Models Refrigeration Cycle Diagram 2 Cooling Heating Models ...

Page 45: ...with cap Closed Open Open clockwise counter clockwise connected manifold gauge Open Open Open with charging cylinder Open Open Open with charging cylinder Open Open Open Open Works Shipping Air purging Installation Operation Pumping down Transfering Evacuation Servicing Gas charging Servicing Pressure check Servicing Gas releasing Servicing 1 2 3 4 5 6 Valve cap Open position Closed position Pin S...

Page 46: ...rge from the charge hose 5 Set the 2 way valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indi cates 1kg cm2 g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating 3 to 5kg cm2 g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and the service port nut Use t...

Page 47: ...he service port 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indicates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G dis charge the refrigerant until the gauge indi cates 0 5 to 1 kg cm2 G if this is the case it will not be necessary to apply a evacuatin Discharge the...

Page 48: ...toward 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and con firm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vac uum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo Open Open Vacuum pump 3 Way valve Outdoor un...

Page 49: ...ith a little at a time approximate ly 150g each time while operating the air conditioner in the cooling cycle however one time is not sufficient wait approxi mately 1 minute and then repeat the pro cedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be discharged If the system has been charged with liquid refri...

Page 50: ... operating the unit for 10 minutes The method of using graph Find outdoor temperature Find indoor temperature onto the curve of outdoor temperature Read suction pressure at the axis of ordinates The method of using equation Calculate suction pressure after putting indoor and outdoor temperature into the equation 13 At operating the Unit for 10 minutes Suction Pressure Kg cm 2 g Outdoor Temp C Indo...

Page 51: ...rence between intake and discharge air depends on room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature and pressure of refrigeration cycle 1 The suction pressure is usually 8 5 9 5 kg cm2 G Cooling at normal condition 2 The temperature can be measured b...

Page 52: ...ctor related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector including connecting cable of Indoor Outdoor Unit PCB Board Operation Check Items Power Transformer Outdoor unit Input Voltage Output...

Page 53: ...ctor related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector including connecting cable of Indoor Outdoor Unit PCB Board Operation Check Items Power Transformer Outdoor unit Input Voltage Output...

Page 54: ...e battery Check the contact of CN DISP connector When the compressor stopped Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by force Check DISP PWB Ass y Voltage between CN DISP DC 5V When the detect switch double key inside the remote controller door is fault it i...

Page 55: ...aged Compressor Outdoor Fan is stopped Check the related circuit of R02H 12 1K R04H 6 2K Micom No 27 Indoor unit Check the indoor temperature sensor is disconnected or not About 10kΩ at 77 F When the temperature around Outdoor PWB Ass y is above 163 F the compressor is stop and only Outdoor Fan is operating Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal ...

Page 56: ...aged Compressor Outdoor Fan is stopped Check the related circuit of R02H 12 1K R04H 6 2K Micom No 27 Indoor unit Check the indoor temperature sensor is disconnected or not About 10kΩ at 77 F When the temperature around Outdoor PWB Ass y is above 163 F the compressor is stop and only Outdoor Fan is operating Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal ...

Page 57: ...ble of page 56 Check the patterns and the conditions of outdoor unit PWB Assy s Check the connecting condi tion and disconnection of connecting wires between Indoor and Outdoor unit Check the pattern and the condition of Indoor unit PWB Ass y Check the interference of Indoor Fan Does the voltage of each terminals of CN MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 56 Ch...

Page 58: ...ing condition of CN UP DOWN Connector Check the soldering condition on PWB of CN UP DOWN Connector Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pin RED of CN UP DOWN and GND Confirm that there is a soldering short at following terminals Between 60 61 62 and 63 of MICOM Between 2 3 4 and 5 of IC01M Between 12 13 14 15 of IC01M Between 1 2 3 4 and 5 of CN U...

Page 59: ...d the operating condition of product after also operating with the remote controller then taking above 2 minutes Apply the power again after about 20 seconds by the power of Outdoor unit is off Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes Check the PWB assembly of Indoor and Outdoor unit If the ...

Page 60: ...n vane does not smoothly operate It does not operate with a remote controller The operation indicator blinks once on for 0 5 second off for 3 seconds The compressor operates continuously regardless of the setting temperature and the variation of room temperature The operation indicator blinks once on for 0 5 second off for 3 seconds Continuous operation The operation indicator blinks once The comp...

Page 61: ... time The signal of the remote controller is inputted The fuse and Q61 in the Outdoor unit are damaged when the indoor fan is operated No power for Indoor unit The signal input of the remote controller and opera tion of product is impossible The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power All functions stop The operation with the remote controller force...

Page 62: ... 62 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Schematic Diagram Electric Control Device Indoor ...

Page 63: ... 63 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Outdoor 9k 12k ...

Page 64: ... 64 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Outdoor 18k 24k Schematic Diagram ...

Page 65: ... 65 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Wiring Diagram Indoor Unit Models 9k 12k 18k 24k Schematic Diagram ...

Page 66: ... 66 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Outdoor Unit Models 9k C O Models 12k H P 12k C O H P Schematic Diagram ...

Page 67: ... 67 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Models 18k C O Models 18k H P 24k C O H P Schematic Diagram ...

Page 68: ...68 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Components Location Indoor MAIN P W B ASSEMBLY TOP VIEW BOTTOM VIEW ...

Page 69: ... 69 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Outdoor 9k 12k TOP VIEW BOTTOM VIEW Schematic Diagram ...

Page 70: ... 70 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Outdoor 18k 24k TOP VIEW BOTTOM VIEW ...

Page 71: ...nc All right reserved Only for training and service purposes LGE Internal Use Only DISPLAY ASSEMBLY LED_M PCB P No 6870A90240F PCB ASSEMBLY P No 6871A20681 PLASMA 8 8 SW_TACT CN DISP1 RECEIVER C01A 6871A20681 6871A20680 Schematic Diagram ...

Page 72: ...1 5 50 57 25 2 29 33 13 13 13 13 7 1 250 9 3 330 13 0 460 15 530 1 2 2 6 1 4 3 0 2 5 5 3 3 1 6 6 36 41 41 46 31 36 36 41 28 34 35 38 48 48 55 57 Thermistor themistor Thermistor themistor 4 way 4 way 4 way 4 way 3 3 3 3 3 3 3 3 3 3 Auto auto Auto auto Auto auto Auto auto Wireless LCD Wireless LCD Wireless LCD Wireless LCD 64 86 F 64 86 F 64 86 F 64 86 F 2 F 1 C 2 F 1 C 2 F 1 C 2 F 1 C Yes Yes Yes Y...

Page 73: ...ice for product improvement 1 115V 60 1 115V 60 1 230 208 60 1 230 208 60 9 800 11 500 19 000 19 500 22 100 22 500 9 800 11 500 19 000 19 500 22 100 22 500 980 1 150 2 250 2 250 980 1 150 2 700 2 700 9 5 10 5 12 5 11 5 12 5 11 5 9 5 10 5 12 5 11 5 12 5 11 5 57 57 29 33 29 33 57 57 29 33 29 33 13 13 13 13 7 8 7 8 7 8 7 8 9 3 330 9 3 330 15 530 15 530 1 4 3 0 1 4 3 0 3 1 6 6 3 1 6 6 41 41 46 46 36 3...

Page 74: ...Internal Use Only Exploded View 152302 152313 342800 263230A 359011 131410 733010 135316 135313 135311 147581 268711A 146811 346810 135516 35211B 352150 354210 249951 268711B 268711C 267110 159830 266090 Option Parts Part for Plasma Models Part for Plasma Models 352115 352116 Indoor Unit Exploded View ...

Page 75: ...ining and service purposes LGE Internal Use Only Exploded View Outdoor Unit 9k 12k C O Seriess 550140 554160 567502 552113 437210 435301 447910 559010 546810 349600 554031 430410 552203A 552203B 437212 435511 649950 263230C W0CZZ 263230B 268711D Part for External Models ...

Page 76: ...ice purposes LGE Internal Use Only Outdoor Unit 9k 12k H P Seriess 550140 554160 567502 553000 552113 437210 435301 447910 559010 546810 349600 554031 430410 552203A 552203B 437212 435511 649950 263230C W0CZZ 263230B 268711D 552202 561410 552116 566000 Part for H P Models Part for External Models ...

Page 77: ...ce purposes LGE Internal Use Only Outdoor Unit 18k C O Seriess Exploded View 435512 437210 559010 546810 554031 552112 437212 435511 447910 430410 435301 649950 263230C 268711D W0CZZB W0CZZA 552203A 552203B 554160A 554160B 567502B 567502A 550140 263230B Part for External Models 552113 ...

Page 78: ...e Only Outdoor Unit 24k C O Seriess Exploded View 447910 567502A 649950 435512 349480 554031 552112 137213A 263230B 137213B 435300 559010 435301 430410 546810 349600 437210 552113 268711D W0CZZB W0CZZA 552203A 552203B 554160A 554160B 567502B 550140 263230C 435511 Part for External Models Part for External Models ...

Page 79: ...nit 18k 24k H P Seriess 447910 567502A 649950 552116 561410 552202 566000 435512 349480 554031 552112 137213A 263230B 137213B 435300 559010 435301 430410 546810 349600 437210 552113 268711D W0CZZB W0CZZA 552203A 552203B 554160A 554160B 567502B 550140 263230C 435511 Part for External Models Part for External Models Exploded View ...

Page 80: ...P NO MFL32351801 December 2007 ...

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