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Service Manual
Room Air Conditioner
SVC MANUAL(Exploded View)
MODEL :
LS-C1863R/W/B/D/M/CM0
LS-H1863R/W/B/D/M/CM0
LS-C2463R/W/B/D/M/CM0
LS-H2463R/W/B/D/M/CM0
LS-C1823R/W/B/D/M/CM0
LS-C1823R/W/B/D/M/CM2
LS-H1823R/W/B/D/M/CM0
LS-C2423R/W/B/D/M/CM0
LS-H2423R/W/B/D/M/CM0
AS-H2463R/D/M/WM1
AS-H1863B/M/R/WM0
AS-H2463R/D/M/WM1
LS-C2463B/C/D/M/RM1
LS-C1823RM1
LS-H1863B/D/M/R/WM1
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
AS-H1863*M3
AS-H2463*M3
LS-H1863*M3
LS-C2463*M3
LS-H2463*M3
LS-C1863*M3
LS-C2463*M4
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Table of Contents
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Summary of Contents for LG LS-C1863R
- Page 1 Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : LS-C1863R/W/B/D/M/CM0 AS-H1863*M3 LS-H1863R/W/B/D/M/CM0 AS-H2463*M3 LS-C2463R/W/B/D/M/CM0 LS-H1863*M3 LS-H2463R/W/B/D/M/CM0 LS-C2463*M3 LS-C1823R/W/B/D/M/CM0 LS-H2463*M3 LS-C1823R/W/B/D/M/CM2 LS-C1863*M3 LS-H1823R/W/B/D/M/CM0 LS-C2463*M4 LS-C2423R/W/B/D/M/CM0 LS-H2423R/W/B/D/M/CM0 AS-H2463R/D/M/WM1 AS-H1863B/M/R/WM0 AS-H2463R/D/M/WM1 LS-C2463B/C/D/M/RM1 LS-C1823RM1 LS-H1863B/D/M/R/WM1 CAUTION Before Servicing the unit, read the safety precautions in General SVC manual.
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Page 2: Table Of Contents
Electronic Parts ............................48 Schematic Diagram............................55 Electric Control Device ..........................55 Wiring Diagram............................56 Components Location ..........................58 Product Specifications ..........................60 Exploded View...............................62 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Lg Model Name
LG Model De velopment Serial No. * ARTCOOL COLOR Mirror Walnut White Wood Gogh Blue Sisley Wood Quran Metal Mecca Cherry - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Safety Precautions
- 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 5 • Otherwise, it may cause a fire or • Otherwise, it may cause electrical electrical shock. electrical shock. shock or a fire. - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 6 • Otherwise, it may cause a fire or electrical shock. • Otherwise, children may be seriously injured due to falling down. - 6 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 7 • The appearance of the air conditioner may deteriorate, • Otherwise, it may cause explosion, and a fire. change color, or develop surface flaws. - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 8: Dimensions
This symbol alerts you to hazards that may cause harm to the air conditioner. This symbol indicates special notes. NOTICE Indoor Unit Installation plate Model INDOOR UNIT Dimension 1170 - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 9: Outdoor Unit
LS-C1863R/W/B/D/M/CM0, LS-H1863R/W/B/D/M/CM0 MODEL LS-C2463R/W/B/D/M/CM0, LS-H2463R/W/B/D/M/CM0 LS-H2423R/W/B/D/M/CM0, AS-H1863B/M/R/WM0 AS-H2463B/M/R/WM0, LS-C2463B/C/D/M/RM1 AS-H2463R/D/M/WM1 LS-C1823RM1, LS-H1863B/D/M/R/WM1 LS-H1863*M3, LS-C2463*M3, LS-H2463*M3 LS-C1863*M3, LS-C2463*M4 74.5 74.5 - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 10 Dimensions Gas side (3-way valve) Liquid side (2-way valve) MODEL LS-C1823R/W/B/D/M/CM2, AS-H1863*M3 LS-C2423R/W/B/D/M/CM0, AS-H2463*M3 unit - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 11 Dimensions Liquid side 2-way valve Gas side 3-way valve LS-C1823R/W/B/D/M/CM0 MODEL LS-H1823R/W/B/D/M/CM0 unit 543.6 11.4 72.5 86.4 - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 12: Installation
5. Select a place where the warm air and noise from the air conditioner do not disturb neighbors. - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 13: Piping Length And Elevation
CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability. Oil trap should be installed every 5~7 meters. - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 14: Fixing Installation Plate
Drill the piping hole at either the right or the left Indoor Outdoor with the hole slightly slanted to the outdoor side. - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 15: Flaring Work
Cone Ø6.35 0~0.5 Ø9.52 0~0.5 Copper pipe Ø12.7 0~0.5 Clamp handle Ø15.88 0~1.0 Red arrow mark Ø19.05 1.0~1.3 - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 16: Connecting The Piping
Drain hose Connecting cable or floors. *Foamed polyethylene or equivalent is rec- ommended. - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 17 Wrap with vinyl tape they fit into the rear piping housing section. Pipe Vinyl tape(wide) Drain hose - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 18 3. When extending the drain hose at the indoor unit, install the drain pipe. Drain hose Indoor unit drain hose Vinyl tape (narrow) Adhesive - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 19 3. Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound). - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 20 • 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. - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 21 Gas side piping (Bigger diameter) Outside diameter Torque inch kg.m Ø6.35 Ø9.52 Ø12.7 Torque wrench Ø15.88 Ø19.05 - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 22: Connecting The Cables To The Indoor Unit
36k, 38k -SECTIONAL AREA Grade 0.75 0.75 NORMAL CROSS 7k~14k Cable Type(B) H07RN-F H07RN-F -SECTIONAL AREA Cable Type(B) H07RN-F - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 23: Connecting The Cables To The Outdoor Unit
9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors. - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 24: Checking The Drainage
Water Waving leakage leakage Less than Tip of drain hose 50mm gap Trap dipped in water Water leakage Ditch - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 25: Air Purging
Usually, the cylinder is used in a vertical standing position. - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 26 Vacuum pump This completes air purging with a vacuum pump. The air conditioner is now ready to test run. - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 27: Test Running
8°C(46°F) and all refrigerant gas will have been collected in (Cooling) or (Heating). the outdoor unit. - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 28: Operation
• While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting. - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 29: Defrost Control
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 30 When 0.5°C or more above the setting temp, the compressor is turned on. Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 31 • The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. • If the appliance is on pause at the time set by the timer, the pause continues. - 31 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 32: Sleep Timer Operation
• During the JET HEAT function at any moment, the A/C starts to blow the hot air with side louvers closed at extremely high speed for 60 minutes setting the room temp. automatically to 30°C. - 32 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 33: Forced Operation
"beep-beep-beep-beep-beep-" is made 10 times to indicate that the remote control signal cannot be received. - 33 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 34 When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again. - 34 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 35: Display Function
• Sleep Mode Timer Indicator Timer Indicator • Timer Mode • Timer Mode Defrost Indicator Outdoor Unit Operation • Hot-start, Defrost - 35 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 36: Self-Diagnosis Function
• Outdoor pipe temperature • Outdoor Thermistor thermistor open/short. assembly check 3sec 3sec (5times) • Communication line/circuit • Poor communication. check 3sec - 36 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 37: Remote Control Operations
Used prior to using modes printed in blue at the bottom of buttons. 17. AUTO CLEAN(OPTIONAL) Used to set Auto Clean mode. - 37 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 38: Disassembly
Inlet Grille assembly. 1. Before removing the control box, be sure to take out the wire screwed at the other end. - 38 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 39 4. To remove the Evaporator. • Remove 3 screws securing the evaporator(at the left 2EA in the Eva Holder, at the right 1EA). - 39 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 40 • Remove the left end of the cross-flow fan from the self-aligning bearing. - 40 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 41: Troubleshooting Guide
HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 41 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 42: 2-Way, 3-Way Valve
Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 42 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 43: Pumping Down
– 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. - 43 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 44 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 44 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 45 (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dirty or depleted, replenish as needed. - 45 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 46: Gas Charging
1 minute and then repeat the procedure (pumping down-pin). - 46 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 47: Cycle Parts
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 47 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 48: Electronic Parts
• IC01A(Reset IC) OSC01B(8MHz) • Voltage of Micom No. 36, • Replace faulty parts (DC +4.5V over) and Soldering condition. - 48 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 49 Check point • Check the connecting circuit between PIN - R02L(1K) - C01L(680PF) - MICOM PIN • Check Receiver Assembly - 49 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 50: Compressor/Outdoor Fan Are Unable To Drive
• Check the abnormal condition for the component of Compressor/Outdoor Fan Motor. • Check the "open" or "short" of conmecting wires between indoor and outdoor. - 50 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 51: When Indoor Fan Does Not Operate
15V) Turn ON Main Power Fan can't operate for dehumidifying mode. - Change operation for cooling mode. - 51 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 52 If there are no problems after above checks • Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Louvers. - 52 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 53: When Heating Does Not Operate
4 way OFF Between Micom DC 5V DC 0V (NO.51) and GND Between IC03M About 12V Below DC1V (No.9) and GND - 53 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 54 • Check the abnormal condition for the component of Compressor/Outdoor Fan Motor, 4 way. • Check the "open" or "short" of connecting wires between indoor and outdoor. - 54 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 55: Schematic Diagram
Schematic Diagram Schematic Diagram Electric Control Device BZ FREQ - 55 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 56: Wiring Diagram
CONNECTOR OPERATON PWB ASM LIMIT S/W-2 CN-STEP1 CN-STEP2 TO OUTDOOR UNIT STEP STEP MOTOR-1 MOTOR-2 INDOOR WIRING DIAGRAM 3854A20238N - 56 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 57: Outdoor Unit
VALVE BK(RD) RY-COMP T/B4 T/B1 SOFT STARTER PCB T/B2 TERMINAL 1(L) 2(N) BLOCK BK RD TO INDOOR UNIT 3854A20167Q - 57 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 58: Components Location
Schematic Diagram Components Location MAIN P.W.B ASSEMBLY (AC PART) • TOP VIEW • BOTTOM VIEW - 58 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 59 DISPLAY ASSEMBLY SUB P.W.B ASSEMBLY CN-D4 PWB ASM:6871A20363 PWB:6870A90126B CN-D3 CN-D2 CN-D1 CN-CON(WH) CN-12V(WH) CN-D5 CN-SW(BL) CN-D7 CN-D6 CN-D8 - 59 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 60: Product Specifications
5/8(15.88) Sleeping Operation Drain Hose Connecting Cable(p*mm 14:3*1.5 12:3*2.5 14:3*1.5 12:3*2.5 12:3*2.5 14:3*1.5 12:3*2.5 14:3*1.5 12:3*2.5 12:3*2.5 Power Cord(p*mm - 60 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 61 Drain Hose Connecting Cable(p*mm 14:3*1.5 12:3*2.5 14:3*1.5 14:3*1.5 12:3*2.5 14:3*1.5 12:3*2.5 14:3*1.5 12:3*2.5 14:3*1.5 14:3*1.5 12:3*2.5 14:3*1.5 12:3*2.5 Power Cord(p*mm - 61 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 62: Exploded View
131410 145200B W0CZZA 346810 249951 352150 352115 266090 352116 264110 35211B 145200C 145200D 263230 146811A 147581 135311 135516 268711B - 62 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 63 131410 145200B 346810 W0CZZA 249951 352150 352115 266090 352116 264110 35211B 145200C 145200D 263230 146811A 147581 135311 135516 268711B - 63 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 64 W0CZZB 435511 559010 546810 552202 552116 Applied for Heating Model 561410 447910 435301 554160 552203A 550140 430411 552203B 437210 - 64 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 65 349600 435511 559010 546810 552202 552116 Applied for Heating Model 561410 447910 437210 554160 552203A 550140 430411 552203B 435301 - 65 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 66 349600 435511 559010 546810 552202 552116 Applied for Heating Model 561410 447910 435301 554160 552203A 550140 430411 552203B 437210 - 66 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 67 559010 649950 552116 435511 447910 552202 Applied for Heating Model 561410 W0CZZB 554160 550140 552203B 437210 430411 435301 552203A - 67 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 68 February, 2008 P/NO : 3828A20195P...