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

LGE Internal Use Only

AS-W2463_ Series

Schematic Diagram

Schematic Diagram

Electric Control Device

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Summary of Contents for AS-W2463MH2

Page 1: ...er SVC MANUAL Exploded View MODEL AS W2463RH2 AS W2463MH2 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: ...ooling Mode Operation 32 Healthy Dehumidification Mode Operation 32 Heating Mode Operation 32 Defrost Control Heating 33 Jet cool mode operation 33 On Timer Operation 33 Off Timer Operation 33 Off Timer On Timer Operation 33 Protection from total current control 34 Swing mode 34 Sleep timer operation 35 Auto restarting operation 36 Forced operation 36 Power relay control 36 Protection from DC Peak...

Page 3: ... 5 200 220V 50Hz D 440 460 60Hz 3Phase 6 220 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 1 9 LG Model De ARTCOOL COLOR velopment Serial No Basic A Basic 4Way B Plasma Filter C Plasma Filter 4 Way D Tele LCD E Tele LCD Nano plasma 4Way F Nan...

Page 4: ... possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock Always use the power plug and socket with the ground terminal There is risk of electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Installatio...

Page 5: ...roduct failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furnishings Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated break er or fuse There is risk of fire or electric shock Op...

Page 6: ... electrical shock or product damage Do not place a heater or other appliances near the power cable There is risk of fire failure of the product and or electric shock Do not allow water to run into electric part There is risk of fire failure of the product and or electric shock Do not store of use flammable gas or combustibles near the air conditioner There is risk of fire or failure of product Wax...

Page 7: ...tc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anything on the product outdoor unit There is risk of personal injury and failure of product Do not insert hands or other objects through the air inlet or outlet whil...

Page 8: ...use harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual Installation plate D H W MODEL DIM Unit W mm 1170 H mm 315 D mm 173 18k 24k Btu Series 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Safety Precautions ...

Page 9: ...ing and service purposes LGE Internal Use Only Outdoor Unit W L7 L6 L8 L9 D L1 L2 L3 L10 L11 L4 L5 H Gas side Liquid side MODEL DIM W mm 870 H mm 800 D mm 320 L1 mm 370 L2 mm 340 L3 mm 25 L4 mm 775 L5 mm 25 L6 mm 546 L7 mm 162 L8 mm 162 L9 mm 54 L10 mm 79 L11 mm 76 4 24k Btu Series ...

Page 10: ...mm2 Connecting Tube Liquid Side mm in Ø Socket Flare Gas Side mm in Length std m in Drain Hose O D I D mm in Indoor mm Dimension inch W H D Outdoor mm inch Net Weight Indoor kg lbs Outdoor kg lbs 4 430 4 430 3 810 3 810 15 120 15 120 7 030 7 030 6 045 6 045 23 987 23 987 7 735 7 735 6 653 6 653 26 400 26 400 4 190 4 190 3 604 3 604 14 300 14 300 8 200 8 200 7 051 7 051 27 980 27 980 8 351 8 351 7 ...

Page 11: ...mage to the wall Outdoor unit 1 If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radia tion from the condenser is not restricted 2 Ensure that the space around the back and sides is more than 10cm The front of the unit should have more than 70cm of space 3 Do not place animals and plants in the path of the warm air 4 Take the weight of the air con...

Page 12: ...lled every 5 7 meters The wall you select should be strong and solid enough to prevent vibration 1 Mount the installation plate on the wall with type A screws If mounting the unit on a concrete wall use anchor bolts Mount the installation plate horizontally by aligning the centerline using a level 2 Measure the wall and mark the centerline It is also important to use caution concerning the locatio...

Page 13: ...s from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a downward direction as you remove burrs in order 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 1 Firmly hold copper pipe in a die in th...

Page 14: ...o the indoor unit from the outdoor unit through the piping hole Do not connect the cable to the indoor unit Make a small loop with the cable for easy connec tion later 3 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 uper side can cause drain pan to overflow inside the unit CAUTION If the drain hose is rou...

Page 15: ... at the indoor unit install the drain pipe Wrap the insulation material around the connecting portion 1 Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there may be no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape 3 Bundle the piping and drain hose together by wrap ping ...

Page 16: ... installation plate Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall Connecting the piping to the indoor unit and the drain hose to drain pipe 1 Align the center of the pipes and sufficiently tighten the flare nut by hand 2 Tighten the flare nut with a wrench 3 When extending the drain hose at the indoor unit install ...

Page 17: ...ain hose across the back of the chassis Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassis Indoor unit installation 1 Remove the spacer 2 Ensure that the hooks are properly seated on the installation plate by moving it left and right 3 Press...

Page 18: ... purposes LGE Internal Use Only Installation CAUTION Installation Information For left piping Follow the instruction below Good case Press on the upper side of clamp and unfold the tubing to downward slowly Bad case Following bending type from right to left may cause damage to the tubing ...

Page 19: ... nut by hand 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 follows the arrow on the wrench mm inch kg m Ø6 35 1 4 1 8 Ø9 52 3 8 4 2 Ø12 7 1 2 5 5 Ø15 88 5 8 6 6 Ø19 05 3 4 6 6 Outside diameter Torque Outdoor unit Liquid side piping Smaller diameter Gas side piping Bigger diameter Torque ...

Page 20: ...door unit Connect the wires firmly so that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram CAUTION If a power plug is not used provide a circuit breaker between power source and the unit as shown by CAUTION The power cord connected to the A unit should be selected according to the following specifications Type B approved by HAR or SAA Th...

Page 21: ...ram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capa...

Page 22: ...gh the drain hose of the indoor unit without any leakage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping like the following Drain pan Drain hose Leakage checking Connecting area drain hose Leakage checking Downward slope Do not raise Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Wate...

Page 23: ... perform the following 1 Tape the piping drain hose and connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent In cases where the Outdoor unit is installed above the Indoor unit perform the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering t...

Page 24: ...t Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve when th...

Page 25: ... 2 When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side ser vice port slightly to release...

Page 26: ...or rigid mount 2 When installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake 3 If the vibration of the unit is transmitted to the hose secure the unit with an anti vibration rubber Evaluation of the performance Operate the unit for 15 20 minutes then check the sys tem refrigerant charge 1 Measure the pressure of th...

Page 27: ...into the outdoor unit without the loss of refrigerant CAUTION Be sure to perform Pump Down procedure in the cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant 3 Close the liquid side service valve all the way 4 Turn on th...

Page 28: ...gular operation The fan speed is automatically switched from high to low speed The louver can be set at the desired position or swing up and down automatically Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting the Current Control Time Delay Safety Control Indoor Fan Speed Control Operation indication Lamps LED Soft Dry Operation Mode B...

Page 29: ...f indoor and outdoor It is only operated in the heating operation mode except defrosting operation High speed Although fan motor speed is middle it will change high speed in case of below AC193V over 45 C of outdoor temp and over fc fh of comp Freq Low speed Although fan motor speed is middle it will change Low speed in case of over AC 270V over 21 C Heating Mode of outdoor temp below 24 C Cooling...

Page 30: ...n Control Cooling model only Heating model only TEMPERATURE LOW HIGH Cooling Operation Mode Heating Operation Mode Auto Operation Mode Horizontal Airflow Direction Control Button Optional Room Temperature Display Setting the Time or Timer PLASMA Optional ON OFF SET PLASMA CANCEL Optional Auto Clean Fan Speed Selection Low Med High CHAOS Power Save Cooling Button AUTO CLEAN High 39 C Low 11 C OFF O...

Page 31: ...er Indicator PLASMA Indicator Timer Indicator Preheat Indicator Setting Temp On while in appliance operation off while in appliance pause Blinking 3sec off 0 5sec on according to Error Code as long as the system malfunctions On while in sleep timer mode off when sleep timer cancel or appliance operation pause On while in plasma mode off when plasma mode cancel On while in timer mode on off off whe...

Page 32: ...rature 26 C Intake Air Temp 25 C 24 C Intake Intake Air Temp 26 C Intake Air Temp 1 C 18 C Intake Intake Air Temp 24 C Intake Air Temp 0 5 C Intake Air Temp 18 C 18 C While compressor off the indoor fan repeats low airflow speed and stop While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidification operation and 4 min compressor off repeat Compressor ON Te...

Page 33: ...e the room temperature is controlled to the setting temperature 18 C When the sleep timer mode input while the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vane is reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Jet cool mode operation On Timer Operation Off Timer Operation O...

Page 34: ...again If CT2 occurs 5 times within 1hour the appliance turn off and display ERROR CODE 22 I1 Current of operating frequency down I2 Current of compressor cut off cf I1 is set the lowest level between intial value and in case dectection of dc paeak current Control table Protection from total current control AS W2463RH2 13 5 13 5 14 14 15 5 AS W2463MH2 13 5 13 5 14 14 15 5 I1 Cooling Heating Cooling...

Page 35: ... 60 min later since the start of the sleep timer the setting temperature decrease by 1 C After another 60min elapse it decreases by 1 C again Setting temp C 1 0 C up 1 0 C up Cooling ON temp Setting temp 0 5 C Cooling OFF temp Setting temp 0 5 C 0 5 1 Sleep time hr Setting temp C Heating ON temp Setting temp Heating OFF temp Setting temp 3 0 C 1 2 Sleep time hr 1 0 C down 1 0 C down When the sleep...

Page 36: ...ture as follows The unit select before operating mode in 3 hours Indoor temp over 24 C 21 24 C below 21 C Setting temp 22 C 23 C 24 C Setting speed of indoor fan High speed Operating Mode Cooling Healthy Dehumidification Heating Power relay turns on 1 second later after the power is input to the outdoor unit Control sequence power on PTC operating power relay on DC Peak Current Error by a fault si...

Page 37: ...r reaches over 130 C or below 30 C the compressor stop instantly It will be limited the compressor operating frequency according to the compressor dome TH Refer to below Fig Temperature range by COMP SPEC varies by 10 C Portection from overheating of power module Portection from overheating of compressor T off C T2 C Heat Sink Temp T1 C T on C COMP Freq Free OFF Free Fc 1 Fc 1 Fc 2 Fc 2 T T off T ...

Page 38: ...pe of the outdoor unit Defrosting control is available 50 minutes later since heating cycle started and the pipe temperature of out door unit reaches below 6 C Setting Freq Operating Freq of Comp 4 Way EEV Open step Outdoor FAN Indoor FAN Pre Heat LED Deice STEP Fh min Minimum Time of Heating Main Deice time Fh min Fh min ON OFF Setting Speed ON Hot Start OFF Hot Starting ON OFF OFF 0 1 2 3 4 5 6 ...

Page 39: ...Fan 60 Sec 120 Sec Fan The air conditioner changes the operation mode automatically to keep indoor tempera ture When room temperature vary over 2 C with respect to setting temperature air condition er keeps the room temperature in 2 C with respect to setting temperature by auto change mode If outdoor temperature drops below certain temperature liquid back is prevented by reducing fan speed It can ...

Page 40: ... SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation 11 ENERGY SAVING COOLING MODE BUTTON OPTIONAL Used to set Energy Save in cooling mode 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 NEO PLASMA OPTIONAL Used to start or stop the plasma purification f...

Page 41: ...zentally To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward To seperate connecter assembly and than to remove Inlet Grille assembly 1 Before removing the control box be sure to take out the wire screwed at the other end 41 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Interna...

Page 42: ...emove the Control Box Remove securing screws Pull the control box out from the chassis carefully 3 To remove the Discharge Grille Unhook the discharge grille and pull the dis charge 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 ...

Page 43: ...ntil the tab 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 fro...

Page 44: ... 44 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only AS W2463_ Series Schematic Diagram Schematic Diagram Electric Control Device ...

Page 45: ...c Diagram INDOOR MAIN P W B ASSEMBLY AS W2463_Series BOTTOM VIEW TOP VIEW Components Location 45 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 46: ...rposes LGE Internal Use Only Schematic Diagram DISPLAY ASSEMBLY AS W2463_ Series TOP VIEW BOTTOM VIEW RECEIVER PWB ASM 6871A20463 PWB 6870A90178A LED MODULE C01G CN DISP LED MODULE R 0 4 G R 0 5 G R 0 1 G R 0 3 G R 0 6 G Scan3 Vo GND Vcc Scan5 Scan4 Scan2 Scan1 Data5 Data4 Data3 Data2 Data1 ...

Page 47: ...N COIL1 R Y _ F A N A _ H R Y _ F A N A _ L R Y _ H E A T E R R Y _ H O T G A S R Y _ F A N B _ H R Y _ 4 W A Y C N _ P I C E T R A N S 1 R Y _ O I L S C 0 9 J R 0 1 V C T R 0 6 V R 0 5 V R 0 4 V R 0 3 V R 0 2 V C N _ O I L S C N _ P R E S S I C 0 9 K R 2 8 K D 0 4 K D 0 3 K D 0 5 K D 0 6 K C N _ C O M 1 C N _ C O M C 0 1 J F U S E R 2 9 K I C 1 0 K I C 1 2 K R 1 4 K R 1 7 K R 1 6 K R 1 5 K R 3 0 ...

Page 48: ...HEAT EXCHANGE CONDENSER COMPRESSOR ACCUMU LATOR GAS SIDE 3 WAY VALVE LIQUID SIDE EER 3 WAY VALVE COOLING HEATING REVERSING VALVE INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR ACCUMU LATOR GAS SIDE 3 WAY VALVE LIQUID SIDE 3 WAY VALVE CHECK VALVE Drier COOLING HEATING REVERSING VALVE 1 Model Capillary Tube Refrigeration Cycle Diagram 2 Model Adopted Electrion E...

Page 49: ... Indoor unit A B A Oil trap Outdoor unit Indoor unit B In case more than 5m 7k 14k 3 8 Ø9 52 1 4 Ø6 35 4 or 7 5 7 15 20 1 2 Ø12 7 1 4 Ø6 35 4 or 7 5 7 15 20 1 2 Ø12 7 1 4 Ø6 35 4 or 7 5 15 30 20 18k 28k 5 8 Ø15 88 1 4 Ø6 35 4 or 7 5 15 30 20 5 8 Ø15 88 3 8 Ø9 52 4 or 7 5 15 30 30 30k 38k 5 8 Ø15 88 3 8 Ø9 52 7 5 15 30 30 3 4 Ø19 05 3 8 Ø9 52 7 5 15 30 50 Pipe Size Capacity Btu h GAS LIQUID Additio...

Page 50: ...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 51: ...move the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 6 Set the 3 way valve to the back seat 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time espec...

Page 52: ...e push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge 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 indicates 1kg cm2 g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi ...

Page 53: ...3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm2 g 6 Disconnect the charge set and the gas cylin der and set the Liquid side and Gas side valves to th...

Page 54: ...e service port 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indi cates 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 discharge the refrig erant until the gauge indicates 0 5 to 1 kg cm2 G if this is the case it will not be neces sary to apply a evacuatin Discharge the...

Page 55: ...hour Confirm that the gauge needle has moved 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 confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo O...

Page 56: ... of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure 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 dis charged If the system ...

Page 57: ...perature and pressure of refrigeration cycle 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty NOTICE NOTICE Temp difference approx 0 C Current less than 80 of rated current Temp difference approx 8 C Current less than 80 of rated current Temp difference less than 8...

Page 58: ...The display show C7 The display show CA Keep operating state Keep operating state Restart compressor when Heat sink Temp is 85 C below The operation is off enable to restart by remote controller Compressor will be turned off immediately not enable to restart by remote controller Compressor will be turned off immediately not enable to restart by remote controller Compressor will be turned off immed...

Page 59: ...d to the unit The connecting method of Indoor Outdoor connecting cable each color The P C B Ass y Fuse Noise Filter Power Module Bridge Diode etc Trouble 1 NO YES The operation check of the Indoor P C B Ass y Procedure 1 The input voltage of power mod ule 2 The output voltage of power mod ule 4 IC04D 7805 5 IC01A KIA7036 Specification 1 AC230V 30V Check the rated voltage 2 12V 3V 4 DC5V 5 The volt...

Page 60: ...d 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 as force Caused by the remote controller Caused by other parts except the remote controller When the mark is displayed in LCD screen replace battery Check the contact of CN DISP 1 2 connector Check DISP P C B Ass y Voltage between CN DISP1 DC 5V Check ...

Page 61: ...nction IPM Fault Current is 15 5A DC Link volt Is 140V Low High press switch OPEN Abnormal AC volt Input Off Off Off IPM Fault Compressor Over current CT 2 Max Current DC Link Low Volt Low High press AC Low AC High Volt DC Compressor Position PSC Fault DC Link High Volt Discharge Pipe Temp High INV Discharge Pipe Temp High Cons 21 22 23 24 25 26 27 28 32 33 Off Off Off Off Off Off Off Off Off Off ...

Page 62: ...t sink temp high Open Short CT Circuit D pipe sensor INV open short Air sensor open short Cond Pipe sensor open short Suction pipe sensor open short D pipe sensor Cons open short Over capacity Communication Indoor Outdoor EEPROM check sum Cond Pipe sensor temp high Heat sink sensor temp high Heat sink sensor open short 40 41 44 45 46 47 51 53 60 61 62 65 Off Off Off Off Off Off Off Off Off Off Off...

Page 63: ...gged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Display code Title Cause of error Check point Normal condition Check Point 1 Unplug the sensor on Indoor unit PCB 2 Estimate the resistance of each sensor 3 If the resistance of the sensor is 10KΩ 5KΩ at 25 C then sensor is normal 4 If the res...

Page 64: ...t Poor insulation of IPM An instant over current in the U V W phase Comp lock The abnormal connection of U V W Over load condition Overcharging of refrigerant Pipe length Poor insulation of compressor Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection U V W 2 Check the load condition Refrigerant Pipe length Adjust the load condition 3 Check the e...

Page 65: ... 22 C T Internal circuit Initial current error Malfunction of current detection circuit Open Short The voltage of C01N Is 4 0Vdc 25A Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the fan operation is right 3 Check the current 4 Check the install condition 5 Check the internal circuit C T Diode Resistor ...

Page 66: ...shooting CH23 CH28 V 23 28 DC Link Low voltage DC Link High voltage DC link volt is 140Vdc DC link volt is 420Vdc Check the power source Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the components B Diode Reactor PSC Parts ...

Page 67: ...ess S W open Abnormal Input voltage 140Vac 300Vac Check the connection of CN_Press Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point CH 24 1 Check the connection of CN_PRESS 2 Check the install condition for over load 3 Check the SVC V V open 4 Check the leakage of refrigerant CH 25 1 Check the power source 2...

Page 68: ...t error Over current at IGBT Check the connection of comp wire U V W Malfunction of compressor Check the component of IPM detection parts Check the component of IGBT Check the components Display code Title Cause of error Check point Normal condition Check Point CH 26 1 Check the connection of U V W 2 Check the insulation of IPM part 3 Check the compressor same with CH21 CH 27 1 Check the component...

Page 69: ... 60 Over capacity EEPROM Check sum Over capacity Combination Check sum error Check the indoor unit capacity Check the combination table Check the PCB ASM P No Check the poor soldering Display code Title Cause of error Check point Normal condition Check Point CH 51 1 Check the indoor unit capacity CH 60 1 Check the insertion condition of EEPROM 2 Check the poor soldering ...

Page 70: ...emp 65 C Heat sink sensor detected high temp 85 C Check the load condition Check the sensor of Condenser pipe sensor Check the fan is locked Check the sensor of heat sink Display code Title Cause of error Check point Normal condition Check Point CH 61 1 Check the install condition for over load Refrigerant Pipe length Blocked CH 62 1 Check the fan is locked 2 Check the Outdoor temp is very high CO...

Page 71: ...es LGE Internal Use Only Exploded View Exploded View 352116 352150 145200B 145200C 354210 147581 249951 264110 733010 131410 146811A 135311 342800 267110 135313 359011 159830 146811B 145200A 268711C 135316 152302 135516 268711B 35211B 266090 268711A 263230 346810 352115 Indoor Unit ASNW2463RH2 ...

Page 72: ...ice purposes LGE Internal Use Only ASNW2463MH2 352116 352150 145200B 145200C 354210 147581 249951 264110 733010 131410 146811A 135311 342800 267110 135313 359011 159830 146811B 145200A 268711C 135316 152302 135516 268711B 35211B 266090 268711A 237900 263230 346810 352115 Exploded View ...

Page 73: ...ice purposes LGE Internal Use Only Outdoor Unit 435300 137213B 137213A 435512 554031 552202 552116 661400 263230D 435511 435511B 554160 561410 550140 430411 649950 261704 W0CZZ 268711F 552113 559010 437211 435301 546810 549610 349480 447910 552203A 552203B W49810 263230E Exploded View ...

Page 74: ...P NO MFL33675401 OCTOBER 2008 ...

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