LG TS-C096EMA0 Service Manual

Room air conditioner

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LG
Room Air Conditioner

SERVICE MANUAL

MODELS: TS-C096EMA0
TS-H096EMA0
TS-C126EMA0
TS-H126EMA0
TS-C096YDA0
TS-H096YDA0
TS-C126TDA0
TS-H126TDA0
website http://www.lgservice.com
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
LG

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Table of Contents
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Summary of Contents for LG TS-C096EMA0

  • Page 1: Service Manual

    Room Air Conditioner SERVICE MANUAL MODELS: TS-C096EMA0 TS-H096EMA0 TS-C126EMA0 TS-H126EMA0 TS-C096YDA0 TS-H096YDA0 TS-C126TDA0 TS-H126TDA0 CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
  • Page 2: Table Of Contents

    Air Conditioner Service Manual TABLE OF CONTENTS LG Model Name ...............................3 Safety Precautions............................5 Dimensions..............................10 Symbols Used in this Manual ........................10 Indoor Unit..............................10 Outdoor Unit.............................13 Product Specifications ..........................14 Installation ..............................18 Selection of the Best Location........................18 Piping Length and Elevation........................18 How to Fix Installation Plate ........................19 Drill a Hole in the Wall ..........................19...
  • Page 3: Lg Model Name

    LG Model Name 2003 Code Type Code of Model Meaning Producing Center, L: Chang-won R22 N: India Refrigerant A: Chang-won R410A Z: Brazil C: Chang-won R407C D: Indonesia T: China M: Mexico K: Turkey R22 V: Vietnam E: Turkey R410A...
  • Page 4 NBF F+(A/changeove)+Autoclean+4way+PTC NBF F+(A/changeove)+A/clean+4way+Low A+PTC (Nano)Plasma+ION+A/Clean 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean Nano Plasma F+4Way+(A/changeove)+A/clean+Oxy generator 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean+Oxy generator Dry contact Wire remocon Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry...
  • Page 5: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
  • Page 6 Safety Precautions For re-installation of the installed product, Do not install, remove, or re-install the unit by always contact a dealer or an authorized ser- yourself. vice center. • There is risk of fire, electric shock, explosion, or • There is risk of fire, electric shock, explosion, or injury.
  • Page 7 Safety Precautions I Operation Do not turn the air-conditioner ON or OFF by Use a dedicated outlet for this appliance. plugging or unplugging the power plug. • There is risk of fire or electrical shock. • There is risk of fire or electrical shock. Grasp the plug to remove the cord from the Do not place a heater or other appliances near outlet.
  • Page 8 Safety Precautions Unplug the unit if strange sounds, odors, or Be cautious that water could not enter the smoke comes from it. product. • There is risk of electric shock or fire. • There is risk of fire, electric shock, or product dam- age.
  • Page 9 Safety Precautions I Operation Use a soft cloth to clean. Do not use harsh Do not touch the metal parts of the product detergents, solvents, etc. when removing the air filter. They are very sharp! • There is risk of fire, electric shock, or damage to the •...
  • Page 10: Dimensions

    Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the This symbol alerts you to hazards that could cause harm to the air conditioner.
  • Page 11 Dimensions Installation plate Model SY Chassis Dimension Service Manual 11...
  • Page 12 Dimensions Dimensions Installation plate Model ST Chassis Dimension Service Manual 12...
  • Page 13: Outdoor Unit

    Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) TS-H096EMA0 TS-H096YDA0 MODEL TS-C096EMA0 TS-C126EMA0 TS-C126TDA0 TS-C096YDA0 TS-H126EMA0 TS-H126TDA0 unit Service Manual 13...
  • Page 14: Product Specifications

    Product Specifications Models Unit TS-C096EMA0 TS-H096EMA0 2268(2637) 2268(2637) Cooling Capacity kcal/h.(W) Btu/h. 9,000 9,000 2268(2637) Heating Capacity kcal/h.(W) Btu/h. 9,000 Power Input Cooling Heating Running Current Cooling Heating Starting Current Cooling Heating kcal/h.W(W/W) 2.44(2.84) 2.39(2.78) Btu/h.W 9.68 9.47 Power Supply Φ,V,Hz...
  • Page 15 Product Specifications Models Unit TS-C126EMA0 TS-H126EMA0 3024(3516) 3024(3516) Cooling Capacity kcal/h.(W) Btu/h. 12,000 12,000 3024(3516) Heating Capacity kcal/h.(W) Btu/h. 12,000 Power Input Cooling 1290 1280 Heating 1280 Running Current Cooling Heating Starting Current Cooling 10.1 Heating 7.35 kcal/h.W(W/W) 2.35(2.73) 2.36(2.75) Btu/h.W 9.30 9.38...
  • Page 16 Product Specifications Models Unit TS-C096YDA0 TS-H096YDA0 Cooling Capacity kcal/h.(W) 2268(2637) 2268(2637) Btu/h. 9,000 9,000 Heating Capacity kcal/h.(W) 2268(2637) Btu/h. 9,000 Power Input Cooling Heating Running Current Cooling Heating Starting Current Cooling Heating kcal/h.W(W/W) 2.52(2.93) 2.52(2.93) Btu/h.W 10.00 10.00 Power Supply Φ,V,Hz 1Φ,220-240,50 1Φ,220-240,50...
  • Page 17 Product Specifications Models Unit TS-C126TDA0 TS-H126TDA0 Cooling Capacity kcal/h.(W) 3024(3516) 3024(3516) Btu/h. 12,000 12,000 Heating Capacity kcal/h.(W) 3024(3516) Btu/h. 12,000 Power Input Cooling 1260 1180 Heating 1350 Running Current Cooling Heating Starting Current Cooling 10.7 Heating kcal/h.W(W/W) 2.4(2.79) 2.56(2.98) Btu/h.W 9.52 10.17 Power Supply...
  • Page 18: Installation

    Installation Installation Selection of the Best Location Indoor unit Rooftop Installations: • Do not have any heat or steam near the unit. • If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and •...
  • Page 19: How To Fix Installation Plate

    Installation How to Fix Installation Plate Drill a Hole in the Wall The wall you select should be strong and solid • Drill the piping hole with a ø70mm hole core drill. enough to prevent vibration Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.
  • Page 20: Flaring Work And Connection Of Piping

    Flaring work and connection of piping Flaring work and connection of piping Flaring work • Carry out flaring work using flaring tool as shown below. Outside diameter Flaring work inch Main cause for refrigerant leakage is due to defect in the Ø6.35 0~0.5 flaring work.
  • Page 21: Indoor Unit Installation

    Flaring work and connection of piping Connecting the pipings to the indoor unit and For right rear piping drain hose to drain pipe. Route the indoor tubing and the drain hose in the direction of • Align the center of the pipes and sufficiently tighten rear right.
  • Page 22: For Left Rear Piping

    Flaring work and connection of piping • Bundle the piping and drain hose together by wrapping Connecting the pipings to the indoor unit and them with vinyl tape for enough to cover where they fit into the drain hose to drain pipe. the rear piping housing section.
  • Page 23 Flaring work and connection of piping • Wrap the area which accommodates the rear piping hous- Indoor unit installation ing section with vinyl tape. • Remove the spacer. Indoor Connection • Ensure that the hooks are properly seated on the installa- unit piping pipe tion plate by moving it left and right.
  • Page 24: Connection Of The Pipes-Outdoor

    Flaring work and connection of piping Connection of the pipes-Outdoor • Bad case Align the center of the pipings and sufficiently • Following bending type from right to left could cause tighten the flare nut by hand. problem of pipe damage. Finally, tighten the flare nut with torque wrench until the wrench clicks.
  • Page 25: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Connecting the cable between indoor unit and outdoor unit Connecting the cable between indoor unit and outdoor unit Connect the cable to the Indoor unit. • Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection.
  • Page 26: Connect The Cable To The Outdoor Unit

    Connecting the cable between indoor unit and outdoor unit Connect the cable to the outdoor unit Outdoor Unit Remove the control cover from the unit by Terminal block loosening the screw. Connect the wires to the terminals on the con- Over 5mm trol board individually.
  • Page 27: Checking The Drainage And Forming The Pipings

    Checking the drainage and forming the pipings Checking the drainage and forming the pipings Checking the drainage Form the piping To remove the front panel from the indoor unit. Form the piping by wrapping the connecting portion of the indoor unit with insulation mate- •...
  • Page 28: Air Purging

    Air purgingd AIR PURGING Air purging • Do a leak test of all joints of the tubing(both indoor and out- door) and both gas and liquid side service valves. Air and moisture remaining in the refrigerant system have Bubbles indicate a leak. Be sure to wipe off the soap with a undesirable effects as indicated below.
  • Page 29 Air purgingd Soap water method (1) Remove the caps from the 2-way and 3-way valves. Gas side (2) Remove the service-port cap from the 3-way valve. (3) To open the 2-way valve turn the valve stem counter- clockwise approximately 90°, wait for about 2~3 sec, and close it.
  • Page 30: Test Running

    Test running TEST RUNNING 1. Check that all tubing and wiring have been properly con- NOTE: If the actual pressure is higher than shown, the system is nected. most likely over-charged, and charge should be removed. If the actual pressure are lower than shown, the system is 2.
  • Page 31: Operation

    Operation Operation Function of Controls • DISPLAY 1) C/O Model Operation Indicator • ON while in appliance operation, OFF while in appliance pause. • Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on) Timer Indicator •...
  • Page 32: Defrost Control

    Operation • While in compressor off, the indoor fan repeats low airflow speed and pause. • While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification operation and 4-min compressor off repeat. ➲ Setting Temp+0.5°C Compressor ON Temp.
  • Page 33: Sleep Timer Operation

    Operation I Airflow Speed Selection • The airflow speed of the indoor fan is set to high, medium, low, or chaos (auto) by the input of the airflow speed selection key on the remote control. I Sleep Timer Operation • When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control while in appli- ance operation, the operation of the appliance stops.
  • Page 34: Test Operation

    Operation I Test operation • During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room tem- perature and resets in 18±1 minutes. • During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, open the front panel upward and Press the power button let it be pressed for about 3 seconds.
  • Page 35: Display Function

    Operation Display Function 1. Heating Model 2. Cooling Model Operation Indicator Operation Indicator • Cooling, Soft Dry, Fan, Heating • Cooling, Soft Dry, Fan Compressor on Indicator Deicer Indicator DOOR • Hot-start, Deice Self-diagnosis Function Error Error Display LED Error contents SVC check point Code (Indoor body operation LED)
  • Page 36: Remote Control Operations

    36 Service Manual...
  • Page 37: Disassembly

    Disassembly Disassembly Indoor Unit Disconnect the unit from power supply before mak- ing any checks. Be 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.
  • Page 38 Disassembly 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. Screw 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4.
  • Page 39 Disassembly • Unhook the tab on the right inside of the chassis at the same time, slightly pull the evaporator toward you until the tab is clear of the slot. 5. To remove the Motor Cover • Remove 2 securing screw. •...
  • Page 40: Schematic Diagram

    Schematic Diagram Schematic Diagram Electric Control Device • Heat Pump Model(LED TYPE) 40 Room Air Conditioner...
  • Page 41: Wiring Diagram

    Schematic Diagr am Wiring Diagram Indoor Unit Models: SE 9k,12k Cooling only Model POWER PWB ASM THERMISTOR MOTOR STEP MOTOR SH-CAPA FORCE FUSE (250V/2A ) RY-COMP CN-FORCE CN-F/G SUB PCB CN-DISPLAY DISPLAY PWB ASM INDOOR WIRING DIAGRAM TO OUTDOOR UNIT Models: SE 9k,12k Heat pump Model POWER PWB ASM...
  • Page 42 Schematic Diagr am Wiring Diagram Indoor Unit Models: SY 9k,ST 12k Cooling only Model POWER PWB ASM FORCE S/W MOTOR THERMISTOR STEP SH-CAPA MOTOR FUSE (250V/2A ) RY-COMP DISPLAY PWB ASM T/BLOCK 1(L) 2(N) INDOOR WIRING DIAGRAM TO OUTDOOR UNIT Models: SY 9k,ST 12k Heat pump Model POWER PWB ASM...
  • Page 43 Schematic Diagram Outdoor Unit Models: Cooling on l y Model BLUE CAPACITOR BLUE BLUE COMP OVERLOAD PROTECT TERMINAL BLOCK 1(L) 2(N) THE UNIT INDOOR OUTDOOR DIAGRAM WIRING Models: Heat pump Model BLUE CAPACITOR BLUE BLUE BLUE COMP OVERLOAD VALVE,REVERSING PROTECT 1(L) 2(N) TERMINAL BLOCK...
  • Page 44: Components Location

    Schematic Diagram Components Location MAIN P.W.B ASSEMBLY • TOP VIEW • BOTTOM VIEW 44 Room Air Conditioner...
  • Page 45 Schematic Diagram DISPLAY ASSEMBLY Service Manual 45...
  • Page 46: Troubleshooting Guide

    Troubleshooting Guide Troubleshooting Guide Refrigeration Cycle Diagram (1) Cooling Only Models INDOOR UNIT OUTDOOR UNIT LIQUID SIDE CAPILLARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE COMPRESSOR (2) Cooling & Heating Models INDOOR UNIT OUTDOOR UNIT CHECK VALVE LIQUID SIDE (Heating Model only) 3-WAY VALVE CAPILLARY TUBE...
  • Page 47: 2-Way, 3-Way Valve

    Troubleshooting Guide 2-way, 3-way Valve 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench (4mm) Open position Flare nut Flare nut Closed position Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works Shaft position...
  • Page 48: Pumping Down

    Troubleshooting Guide Pumping Down Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air • Procedure (6) Operate the air conditioner at the cooling (1) Confirm that both the 2-way and 3-way valves cycle and stop it when the gauge indicates are set to the open position.
  • Page 49 Troubleshooting Guide Balance Refrigerant of the 3-way Valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves (3) Open the valve (Lo side) on the charge set and are set to the back seat.
  • Page 50 Troubleshooting Guide Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose (3) Close the valve (Lo side) on the charge set, of charge set center hose turn off the vacuum pump, and confirm that the gauge needle does not move (approxima-...
  • Page 51: Gas Charging

    Troubleshooting Guide Gas Charging (After Evacuation) Liquid side Indoor unit Open Outdoor unit 3-Way valve Gas side Open 3-Way valve Check valve Charging cylinder OPEN CLOSE • Procedure (1) Connect the charge hose to the charging This is different from previous procedures. cylinder.
  • Page 52 Troubleshooting Guide Additional gas charging (Gas leakage) • When refrigerant is insufficient by leakage, recharge the unit with the refrigerant up to normal operating suc- tion pressure. • Use the graph or the equation below to get operating suction pressure according to indoor and outdoor tem- perature.
  • Page 53: Cycle Parts

    Troubleshooting Guide Cycle Parts Trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. difference : approx. 0°C • All amount of refrigerant leaked Current : less than 80% of out. Check refrigeration cycle. rated current Temp.
  • Page 54: Electronic Parts

    Troubleshooting Guide Electronic Parts Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.) Turn off Main Power (After 10 seconds) Turn on Main Power Does "beeping" sound is made from the Indoor Unit? Primarily, the operating condition of Micom is OK.
  • Page 55: The Product Is Not Operate With The Remote Controller

    Troubleshooting Guide The product is not operate with the remote controller. Turn on Main Power While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. 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.
  • Page 56: Compressor/Outdoor Fan Are Unable To Drive

    Troubleshooting Guide Compressor/Outdoor Fan are unable to drive. Turn on Main Power Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1°C at least. When in Air Circulation Mode, Compressor/Outdoor Fan is stopped. Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(EVA).
  • Page 57: When Indoor Fan Does Not Operate

    Troubleshooting Guide When indoor Fan does not operate. Turn off Main power Check the connection of CN-MOTOR Check the Fan Motor Check the Fuse(AC250V/T2A) Check the related circuit of indoor Fan Motor. • The pin NO 58 of Micom, and the part for driving TRIAC(the input and output signal of IC01M, PIN NO 1, 16) •...
  • Page 58: When Vertical Louver Does Not Operate

    Troubleshooting Guide When Vertical Louver does not operate. • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with hands Normal • Check the connecting condition of CN-U/D Connector •...
  • Page 59: When Heating Does Not Operate

    Troubleshooting Guide When Heating does not operate Turn ON Main Power Operate “Heating Mode( )” by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2°C at least. In heating Mode, the indoor fan operates in case the pipe temperature is higher than 28°C.
  • Page 60 Troubleshooting Guide Turn off Main Power • Check the electrical wiring diagram of outdoor side. • 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.
  • Page 61: Exploded View

    Exploded View Exploded View Indoor Unit 135312 152302 135301 131410 733010 342800 359011 135311 354210 159901 346810 35211B 268712 135516 266090 668713 264110 146811 263230 267110 249951 268714 Service Manual 61...
  • Page 62 Exploded View Outdoor Unit: 9k Heat Pump,12k Series 437210 435301 237205 437212 237204 435511 554031 546810 552111 559010 552201 552102-1 567502 W0CZZ 554160 447910 552202 649950 550140 552203-1 561410 552116 430410 552203-2 62 Room Air Conditioner...
  • Page 63 Exploded View Outdoor Unit: 9k Cool Only Seriess 554031 437212 552102-1 435512 552201 552111 552102-2 649950 W0CZZ 435511 559010 546810 552202 552116 561410 447910 435301 554160 552203-2 550140 430410 552203-1 437210 Service Manual 63...
  • Page 64: Replacement Parts List

    Replacement Parts list Replacement Parts list Parts List (Indoor) PART No. LOCATION DESCRIPTION REMARK TS-C096EMA0 TS-C126EMA0 TS-C096YDA0 TS-C126TDA0 430410 BASE ASSEMBLY ,OUT 3041A20013H 3041A20092B 3041A20013H 3041A20092B 435301 GRILLE DISCHARGE 3530A10059B 3530A20093E 3530A10059B 3530A20093E 435511 COVER ASSEMBLY ,CONTROL 2H02384C 2H02384C 2H02384C...
  • Page 65: 65 Room Air Conditioner

    Replacement Parts List Parts List (Indoor) PART No. LOCATION DESCRIPTION Remark TS-H096EMA0 TS-H126EMA0 TS-H096YDA0 TS-H126TDA0 CHASSIS ASSEMBLY 131410 3141A20035B 3141A20035B 3141A20019G 3141A20035C GRILLE ASSEMBLY,DISCHARGE 135311 3531A10367D 3531A10367D AEB30975809 AEB31754004 GRILLE ASSEMBLY,FRONT 135312 3531A11023V 3531A11023V AEB30975913 AEB30934408 135516 COVER ASSEMBLY, MOTOR 3551A30166A 3551A30166A 3551A30166A...
  • Page 66 Replacement Parts List Parts List (Outdoor) PART No. LOCATION DESCRIPTION REMARK TS-C096EMA0 TS-C126EMA0 TS-C096YDA0 TS-C126TDA0 BASE ASSEMBLY ,OUT 430410 3041A20013H 3041A20092B 3041A20013H 3041A20092B 435301 GRILLE DISCHARGE 3530A10059B 3530A20093E 3530A10059B 3530A20093E 435511 COVER ASSEMBLY ,CONTROL 2H02384C 2H02384C 2H02384C 2H02384C 437210 PANEL ASSEMBLY,FRONT...
  • Page 67 Replacement Parts List Parts List (Outdoor) PART No. LOCATION DESCRIPTION REMARK TS-H096EMA0 TS-H126EMA0 TS-H096YDA0 TS-H126TDA0 BASE ASSEMBLY ,OUT 430410 3041A20092B 3041A20092B 3041A20092B 3041A20092B 435301 GRILLE DISCHARGE 3530A20093E 3530A20093E 3530A20093E 3530A20093E 435511 COVER ASSEMBLY ,CONTROL 2H02384C 2H02384C 2H02384C 2H02384C PANEL ASSEMBLY,FRONT 437210 3721A10099K 3721A10099K...

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