LG LS180CP Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Air Conditioner
  5. LS180CP
  6. Service manual
LG LS180CP Service Manual

LG LS180CP Service Manual

Hide thumbs Also See for LS180CP:
Table of Contents

Advertisement

Quick Links

This Owner's Manual is provided and hosted by Appliance Factory Parts.
LG LAU186HV
Owner's Manual
Shop genuine replacement parts for LG LAU186HV
Find Your LG Air Conditioner Parts - Select From 2328 Models
-------- Manual continues below --------

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LS180CP and is the answer not in the manual?

Questions and answers

Related Manuals for LG LS180CP

Summary of Contents for LG LS180CP

  • Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. LG LAU186HV Owner's Manual Shop genuine replacement parts for LG LAU186HV Find Your LG Air Conditioner Parts - Select From 2328 Models -------- Manual continues below --------...
  • Page 2 Internal Use Only http://biz.lgservice.com LG Room Air Conditioner SVC MANUAL(Exploded View) MODELS : LS090CP(AS-C0914DH0) LS120CP(AS-C121E1H0) 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.

  • Page 3: Table Of Contents

    Electronic Parts ............................52 Schematic Diagram............................62 Electric Control Device ..........................62 Wiring Diagram............................65 Components Location ..........................67 Product Specifications ..........................72 Exploded View...............................74 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Safety Precautions

    • There is risk of fire or electric • There is risk of fire, electric shock. shock. shock, explosion or injury. - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 • There is risk of fire or electric • There is risk of fire, failure of the shock. shock. product, and/or electric shock. - 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 • There is risk of physical injury, • There is risk of electrical shock. failure of product, or electric electric shock, or product. shock. - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 • To avoid vibration or water leak- • It may cause a problem for your water leakage. age. neighbors. 90˚ - 6 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 • There is risk of personal injury • A dirty filter reduces the efficien- and failure of product. cy of the air conditioner and - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 • They may burn or explode. • The chemicals in batteries could cause burns or other health hazards. - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Dimensions

    9 Btu Series 12 Btu Series (C/O) (H/P) Dimension mm(inch) 840(33.1) 894(35.2) 894(35.2) mm(inch) 270(10.6) 295(11.6) 295(11.6) mm(inch) 153(6.0) 165(6.5) 165(6.5) - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Installation plate Model 18 Btu Series 24 Btu Series Dimension mm(inch) 1090(42.9) 1090(42.9) mm(inch) 300(11.8) 300(11.8) mm(inch) 178(7.0) 178(7.0) - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 12: Outdoor Unit

    9k, 12k unit mm(inch) 770(30.3) mm(inch) 540(21.3) mm(inch) 245(9.6) mm(inch) 287(11.3) mm(inch) 64(2.5) mm(inch) 518(20.4) mm(inch) 10(0.4) mm(inch) 100(3.9) - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 370(14.6) mm(inch) 25(1.0) mm(inch) 630(24.8) mm(inch) 25(1.0) mm(inch) 546(21.5) mm(inch) 162(6.4) mm(inch) 162(6.4) mm(inch) 54(2.1) mm(inch) 74.5(2.9) mm(inch) 79(3.1) - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Symbols Used In This Manual

    Air Intake Vents Piping Piping Air Outlet Drain Hose Vents Drain Hose Air Outlet Vents Base Plate Base Plate - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: Installation

    Hexagonal wrench Measuring Tape, Knife Ammeter Hole Core Drill Gas Leak Detector Thermometer, Spanner Level Torque wrench Flaring Tool Set - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: Installation Map

    Drain Hose Connecting cable Base Plate NOTE: refrigerant line wall thickness must be at least 0.8 mm (0.031 inch) - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Confirm The Refrigerant

    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 systems. - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: Indoor Unit

    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. - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Piping Length And Elevation

    • Capacity is based on standard length and maximum allowance length is on the basis of reliability. • Oil trap should be installed every 5~7meters (16.4~23.0ft). - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: How To Mount Installation Plate

    Drill the piping hole at either the right WALL or the left with the hole slightly slanted to the out- Indoor Outdoor door side. - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: Flaring Work And Connection Of Piping

    0~0.020 Ø9.52 0~0.5 0~0.020 Yoke Ø12.7 0~0.5 0~0.020 Cone Ø15.88 0~1.0 0~0.039 Copper pipe Clamp handle Red arrow mark - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 22: Connecting The Piping

    Ensure that the hooks are properly seated on the installation plate by moving it left and right. - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Connecting The Pipings To The Indoor Unit And Drain Hose To Drain Pipe

    Route the indoor tubing and the drain hose to the required piping hole position. Drain pipe Indoor unit drain hose Vinyl tape(narrow) Adhesive Drain hose - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 Plastic bands Insulation material Indoor unit tubing Flare nut Pipings • Tighten the flare nut with a wrench. - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Drain hose section. Pipe Drain hose Vinyl tape(narrow) Wrap with vinyl tape(wide) - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 • 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. - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: Connection Of The Drain Hose

    Outside diameter Torque inch Ø6.35 Ø9.52 Ø12.7 Ø15.88 Ø19.05 - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 28: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Power Supply Fuse or breaker AWG(MIN.) Model Power source Capacity 1ø, 115V 1ø, 115V 1ø, 230/208V 14 1ø, 230/208V 12 - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 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(0.12in) in each active(phase) conductors. - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 30: Checking The Drainage And Forming The Pipings

    Less than Tip of drain hose 50mm gap dipped in water Water Water Water Waving leakage leakage leakage Ditch - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Form The Piping

    Taping Drain hose Pipings Connecting cable Trap is required to prevent water from entering into electrical parts. - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 32: Air Purging

    Usually, the cylinder is used in a vertical standing position. - 31 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Finishing The Job

    This completes air purging with a vacuum pump. The air conditioner is now ready to test run. - 32 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 7.5m(25ft). Confirm the refrigerant R-410A. Use manifold gauge and hose for R-410A. - 33 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Test Running

    1. Measure the pressure of the gas side service valve. ant will have been collected in the outdoor unit. - 34 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 36: Operation

    24°C ≤ Intake Air Temp<26°C Intake Air Temp-1°C 18°C ≤ Intake Air Temp<24°C Intake Air Temp-0.5°C Intake Air Temp<18°C 18°C - 35 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 • While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off. - 36 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 • When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further. - 37 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 • When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds. • When the appliance-pause key is input by the remote control, the long "beep—" sounds. - 38 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 40: Display Function

    • Indoor room temperature • Indoor Thermistor thermistor open/short (once) assembly check • Indoor pipe temperature thermistor open/short. 3sec 3sec 3sec - 39 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Remote Control Operations

    Used to set Auto Clean mode. 18. ˚C TO ˚F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit. - 40 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 42: Disassembly

    1. Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 41 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 2EA in the Eva Holder, at the right 1EA). • When repair, do not damage the Caution label. - 42 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 Cross-flow fan • Remove the left end of the cross-flow fan from the self-aligning bearing. - 43 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 45: Troubleshooting Guide

    HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 44 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 46: 2-Way, 3-Way Valve

    Open Pressure check (with charging Open Open (Servicing) cylinder) Open Gas releasing (with charging Open Open (Servicing) cylinder) - 45 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 47: Pumping Down

    (5) Set the 2-way valve to the closed position. higher pressure gauge of 50kg/cm range. - 46 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 – Discharge the refrigerant gradually; if it is discharged too suddenly, the refrigeration oil will also be discharged. - 47 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 If the vacuum pump oil becomes dirty or depleted, replenish as needed. Use vacuum pump equipped with check value applied to be prevented from flowing backward. - 48 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 50: Gas Charging

    This unit is charged with R-410A. mately 1 minute and then repeat the pro- cedure (pumping down-pin). Pay attention not to charge R-22. - 49 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 P = 3 + 0.0123 x T + 0.8 x T . g) Where, P : Suction Pressure(kg/cm Tout : Outdoor Temperature(˚C) : Indoor Temperature(˚C) - 50 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 52: Cycle Parts

    2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 51 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 53: Electronic Parts

    • Voltage of Outdoor unit Micom No. 18, OSC01B(4MHz) Voltage of Indoor unit Micom No. 43 and (Indoor/Outdoor unit) soldering condition • Replace faulty parts - 52 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 • Voltage of Outdoor unit Micom No. 18, OSC01B(4MHz) Voltage of Indoor unit Micom No. 43 and (Indoor/Outdoor unit) soldering condition • Replace faulty parts - 53 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 ) - R17(2Ω) - IR LED - Q1 - R16(2.2KΩ). • Check the connecting circuit between PIN R11L(1K) - C11L(680PF) - MICOM PIN • Check Receiver Ass'y - 54 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 56 • Check the electrical wiring diagram of outdoor side. • Check the abnormal condition for the component of Compressor/Outdoor Fan Motor. - 55 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 • Check the electrical wiring diagram of outdoor side. • Check the abnormal condition for the component of Compressor/Outdoor Fan Motor. - 56 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 58: When Indoor Fan Does Not Operate

    Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F. (At that times, Defrost indicator is turned on) - 57 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 • Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver - 58 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 60 Outdoor unit is applied, a communication error will occur. Therefore, the power should be applied after connect- ing them. - 59 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 • The operation indicator blinks once Short between terminals (on for 0.5 second, off for 3 seconds) ) of PIPE-TH. • Continuous operation - 60 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 62 • The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power. - 61 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 63: Schematic Diagram

    Schematic Diagram Schematic Diagram Electric Control Device Indoor - 62 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 Schematic Diagram Outdoor (9k, 12k) - 63 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 Schematic Diagram Outdoor (18k, 24k) - 64 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 66: Wiring Diagram

    Schematic Diagram Wiring Diagram Indoor Unit Models: 9k, 12k, 18k, 24k - 65 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 Schematic Diagram Outdoor Unit Models: 9k(C/O) Models: 12k(H/P), 12k(C/O, H/P) - 66 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 68 Schematic Diagram Models: 18k(C/O) Models: 18k(H/P), 24k(C/O, H/P) - 67 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 69: Components Location

    Schematic Diagram Components Location Indoor MAIN P.W.B ASSEMBLY • TOP VIEW • BOTTOM VIEW - 68 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 70 Schematic Diagram Outdoor(9k, 12k) • TOP VIEW • BOTTOM VIEW - 69 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 Schematic Diagram Outdoor(18k, 24k) • TOP VIEW • BOTTOM VIEW - 70 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 72: Display Assembly

    – 6871A20681 CN-DISP1 PCB P/No : 6870A90240F PLASMA LED_M RECEIVER C01A SW_TACT PCB ASSEMBLY P/No : 6871A20681 – 6871A20680 - 71 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 73: Product Specifications

    33.3(73.4) 33.3(73.4) 71.1(156.5) 82.5(181.6) Outdoor Kg(lbs) * Design and specifications subject to change without prior notice for product improvement. - 72 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 74: Cooling & Heating

    Outdoor Kg(lbs) 34.3(75.7) 34.3(75.7) 82.5(181.6) 82.5(181.6) * Design and Specifications subject to change without prior notice for product improvement. - 73 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 75: Exploded View

    147581 352115 346810 35211B 268711A 135516 352116 352150 266090 Part for Plasma Models 263230A 146811 268711B 267110 249951 268711C - 74 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 76 Exploded View Outdoor Unit: 9k, 12k (C/O) Seriess - 75 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 Exploded View Outdoor Unit: 9k, 12k (H/P) Seriess - 76 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 78 Exploded View Outdoor Unit: 18k(C/O) Seriess - 77 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 79 559010 649950 447910 567502A Part for 552203A External Models 554160A 552203B 554160B 567502B Part for External Models 430410 550140 - 78 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 80 447910 567502A 561410 Part for 552203A External Models 554160A 566000 552203B 554160B 567502B Part for External Models 430410 550140 - 79 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 81 December, 2007 P/NO : MFL32351801...

Table of Contents