LG AS-W096QGG1 Service Manual
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LG AS-W096QGG1 Service Manual

LG AS-W096QGG1 Service Manual

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LG Room
Air Conditioner
SERVICE MANUAL
MODELS: AS-W096QGG1
AS-W126RGH1
AS-W186TGH1
AS-W246TGH1
AS-W246TLG1
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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Summary of Contents for LG AS-W096QGG1

  • Page 1 LG Room Air Conditioner SERVICE MANUAL MODELS: AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1 AS-W246TLG1 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 ..............................9 Symbols Used in this Manual ........................9 Indoor Unit..............................9 Outdoor Unit.............................10 Product Specifications ..........................12 Installation ..............................14 Select the Best Location .........................14 Piping Length and Elevation........................14 How to Fix Installation Plate ........................15 Drill a Hole in the Wall ..........................15...

  • Page 3: Lg Model Name

    Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Negative ION+A/Clean (Nano)Plasma+Negative 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 Wired Remocon Serial No. LG Model Development Serial No. * ARTCOOL COLOR Mirror Walnut White Gogh Blue Sisley Wood...
  • Page 4 Nano Plasma F+(A/changeove)+A/clean+4way Nano Plasma F+(A/changeove)+A/clean+PTC Nano Plasma F+(A/changeove)+Autoclean+4way+PTC Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Negative ION+A/Clean (Nano)Plasma+Negative ION+A/Clean 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean Nano Plasma F+4Way+(A/changeove)+A/clean+ 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. 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 installation, always con- Do not install the product on a Be sure the installation area tact the dealer or an defective installation stand. does not deteriorate with age. Authorized Service Center. • There is risk of fire, electric shock, •...
  • Page 7 Safety Precautions Do not place a heater or other Do not allow water to run into Do not store of use flammable appliances near the power electric part. gas or combustibles near the cable. air conditioner. • There is risk of fire, failure of the •...
  • Page 8 Safety Precautions Operation Use two or more people to lift Use a soft cloth to clean. Do Do not touch the metal parts of and transport the air condi- not use harsh detergents, sol- the product when removing the tioner vents, etc.

  • Page 9: Dimensions

    This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE Indoor Unit Installation plate Model AS-W186TGH1 AS-W096QGG1 AS-W126RGH1 AS-W246TGH1 Dimension 1090 Service Manual 9...

  • Page 10: Outdoor Unit

    Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) MODEL AS-W096QGG1 unit AS-W126RGH1 10 Room Air Conditioner...

  • Page 11: L1 Mm

    Dimensions Outdoor Unit Gas side Liquid side AS-W186TGH1 MODEL AS-W246TGH1 AS-W246TLG1 74.5 Service Manual 11...

  • Page 12: Product Specifications

    Product Specifications Product Specifications Table-1 Model Name AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1 Item Unit 1,582 2,110 1,758 4,249 kcal/h.(W) 1,361 1,814 1,512 3,654 Btu/h. 5,400 7,200 6,000 14,500 2,640 3,520 5,280 7,032 Cooling Capacity Type kcal/h.(W) 2,270 3,027 4,540 6,048 Btu/h.
  • Page 13 Product Specifications Table-2 Model Name AS-W246TLG1 Item Unit 4249 kcal/h.(W) 3654 Btu/h. 14500 7032 Cooling Capacity Type kcal/h.(W) 6048 Btu/h. 24000 7735 kcal/h.(W) 6653 Btu/h. 26400 3604 kcal/h.(W) 3100 Btu/h. 12300 7735 Heating Capacity Type kcal/h.(W) 6653 Btu/h. 26400 8497 kcal/h.(W) 7308 Btu/h.

  • Page 14: Installation

    Installation Installation Selection of the Best Location Indoor unit More than 60cm • Do not have any heat or steam near the unit. • Select a place where there are no obstacles in More than 10cm More than 10cm front of the unit. •...

  • Page 15: 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 16: Flaring Work

    Installation Flaring Work Main cause for refrigerant leakage is due to defect in Flaring work the flaring work. Carry out correct flaring work using the • Firmly hold copper pipe in a die in the dimension following procedure. shown in the table above. Cut the pipes and the cable.

  • Page 17: Connection Of Piping Indoor

    Installation Connection of Piping Indoor • Preparing the indoor unit's piping and drain hose 3. Tape the tubing, drain hose, and the connecting for installation through the wall. cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the •...
  • Page 18 Installation • Tighten the flare nut with a wrench. • Wrap the area which accommodates the rear pip- ing housing section with vinyl tape. Open-end wrench (fixed) Indoor Connection unit pipe pipe Flare nut Vinyl tape Wrap with vinyl tape (wide) Wrench Connection pipe...
  • Page 19 Installation 3. Insert the connecting cable into the indoor unit. Outside diameter Torque kg . m • Don't connect the cable to the indoor unit. inch Ø6.35 • Make a small loop with the cable for easy connec- tion later. Ø9.52 Ø12.7 Ø15.88...

  • Page 20: Connection Of The Pipes-Outdoor

    Installation • Bundle the piping and drain hose together by Press the lower left and right sides of the unit against the wrapping them with cloth tape over the range with- installation plate until the hooks engage into their in which they fit into the rear piping housing sec- slots(clicking sound).

  • Page 21: Connect The Cable To The Indoor Unit

    Installation 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 in dividually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No.

  • Page 22: Connect The Cable To The Outdoor Unit

    Installation Connect the Cable to the Outdoor Unit Outdoor Unit Terminal block 1. Remove the control cover from the unit by loos- ening the screw. Over 5mm Connect the wires to the terminals on the control board individually. Connecting cable 2.

  • Page 23: Checking The Drainage

    Installation Checking the Drainage Form the Piping 1. To remove the front panel from the indoor unit. 1. Form the piping by wrapping the connecting portion of the indoor unit with insulation materi- • Set the air direction louvers up-and-down to the al and secure it with two kinds of vinyl tapes.

  • Page 24: Air Purging

    Installation Air Purging Air and moisture remaining in the refrigerant system • Do a leak test of all joints of the tubing(both indoor have undesirable effects as indicated below. and outdoor) and both gas and liquid side service valves. • Pressure in the system rises. Bubbles indicate a leak.
  • Page 25 Installation Soap water method Gas side (1) Remove the caps from the 2-way and 3-way valves. (2) Remove the service-port cap from the 3-way valve. (3) To open the 2-way valve turn the valve stem coun- Liquid side terclockwise approximately 90°, wait for about 2~3 3-way valve sec, and close it.

  • Page 26: Test Running

    Installation Test Running 1. Check that all tubing and wiring have been properly Intake temperature connected. Discharge air 2. Check that the gas and liquid side service valves are fully open. Prepare remote control 1. Remove the battery cover Discharge by pulling it according to the temperature arrow direction.

  • Page 27: Functions

    Functions Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (Thermistor) • Pipe temperature sensor. (Thermistor) Room temperature control • Maintain the room temperature in accordance with the Setting Temp. Starting the Current Control •...
  • Page 28 Functions Outdoor Unit Power relay control • If power is on, it will operate to chage capacitor on controller and power relay will operate after about 2~5sec. Stand by control at low temp. • If outdoor temp. is below 0°C, preheater is operating for 1~5min. •...
  • Page 29 Functions Remote Control Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( Auto Operation Mode.( (Cooling (Heating Healthy Dehumidification Operation Mode.( Heating Operation Mode.( model only) model only) Fan Speed Selection (Low) (Med) (High) (CHAOS) Room, Temperature Display : (High:39°C Low:11°C) Temperature Setting Down to 18°C Down to 16°C...

  • Page 30: Operation

    Operation Operation LED display of indoor unit LG Brand/OEM Brand • On while in appliance operation, off while in appliance pause. Operation Indicator • Blinking(3sec off/0.5sec on) according to Error Code as long as the system malfunctions. Sleep Timer Indicator •...
  • Page 31 Operation How to operate the power display (LG Brand/OEM Brand) • It must be displayed the power level that will be operating frequency of compressor. • It indicates power levels that compressor operating frequency is controlled to depend on indoor and outdoor conditions.
  • Page 32 Operation Protection of the evaporator pipe from frosting • If the indoor pipe temperaure is below 0°C in 7 min. after the compressor operates without pause while in cooling cycle operation mode, compressor, outdoor fan are turned off. • When indoor pipe temp. is 7°C or higher after 2 min pause of compressor compressor, outdoor fan is turned on according to the condition of the room temperature.
  • Page 33 Step 3 0.5~0.99°C Step 2 0.0~0.49°C Step 1 [The targeting operating freq. of comp. each model] Comp. Operating frequency Model Step 1 Step 2 Step 3 Step 4 Step 5(Fc) Step 6 Step 7 AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1/TLG1 Service Manual 33...
  • Page 34 Operation Healthy Dehumidification mode operation • When the dehumidification operation is set by the remote controller the intake air temperature is detected and the setting temp. is automatically set according to the intake air temperature. Intake air Temp. Setting Temp. 32°C ≤...
  • Page 35 1.0~1.49°C Step 2 0.5~0.99°C Step 1 0.0~0.49°C [The targeting operating freq. of comp. each model] Comp. Operating frequency Model Step 1 Step 2 Step 3 Step 4 Step 5(Fc) Step 6 Step 7 AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1/TLG1 Service Manual 35...
  • Page 36 Operation Fuzzy mode operation • When any of operation mode is not selected like the moment of the power on or when the unit turned off, the operation mode is selected. • When determining the operation mode, the compressor, outdoor fan are off and only the indoor fan is operat- ed for 15~20 seconds, then an operation mode is selected according to.
  • Page 37 Operation 2. Fuzzy operation for Heating • According to the setting temperature selected by Fuzzy rule, the operating frequency of compressor is deter- mined like heating mode operation. • At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temperature at that time.
  • Page 38 Operation Jet cool mode operation • While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation(cooling, dehumidification, ventilation), the Jet Cool mode is operated. • In the Jet Cool mode, the indoor fan is operated super-high speed for 30 min. at cooling mode operation. •...
  • Page 39 Operation Sleep timer operation • When the sleep time is reached after [1,2,3,4,5,6,7hr] is input by the remote control during the operation, the operation of the appliance stops. • When the appliance is on pause, the sleep timer mode cannot be input. 1.
  • Page 40 Operation Auto restarting operation • When the power is restarted after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. •...
  • Page 41 Control table I2: Current of compressor cut off Outdoor temp ≥ 38°C Model Outdoor temp < 38°C Cooling Heating Cooling Heating AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 10.5 11.5 AS-W246TGH1 13.5 14.5 15.5 cf. I1 is set the lowest level between intial value and in case dectection of dc paeak current.
  • Page 42 ∆T = (T off - T on) Heat Sink Temp. MODEL T on T off T1 = T on + ∆T T2 = T on + 2 * ∆T T off °C AS-W096QGG1 AS-W126RGH1 T2 °C AS-W186TGH1 AS-W246TGH1 T1 °C T on °C COMP...
  • Page 43 Operation Defrosting control • While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing, reversed to cooling cycle to defrost the evaporator pipe 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.
  • Page 44 Operation Auto Cleaning • Function used to perform the Self Cleaning to prevent the Unit from Fungus and Bad Odors. • Used after the Shut Down of Cooling Operation to Clean the Evaporator and keep it as fresh for the Next operation. •...

  • Page 45: Disassembly

    Disassembly Disassembly Indoor Unit Warning : Disconnect the unit from power supply before making 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 46 Disassembly 2. To remove the Control Box. • Remove securing screws. Caution label • Pull the control box out from the chassis carefully. 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4.
  • Page 47 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 48: Schematic Diagram

    Schematic Diagram Schematic Diagram Electric Control Device • Indoor 48 Room Air Conditioner...
  • Page 49 Schematic Diagram Outdoor(AS-W096_Series, AS-W126_Series) Service Manual 49...
  • Page 50 Schematic Diagram Outdoor(AS-W186_Series/AS-W246_Series) 50 Room Air Conditioner...

  • Page 51: Wiring Diagram

    Schematic Diagram Wiring Diagram Indoor Unit AS-W096QGG1, AS-W126RGH1, AS-W186TGH1, AS-W246TGH1, AS-W246TLG1 (GN/YL) INDOOR PWB ASSY PWB ASSY THERMISTOR PIPE THERMISTOR MOTOR STEP MOTOR CN-T/BLOCK SH-CAPA STEP MOTOR BL(WH/Ribbed) BR(BK/Plained) CLEAN (PLASMA) RY-COMP GN/YL S/W1 TERMINAL ASSY S/W2 DISP1 DISP2 PTC CONROL...
  • Page 52 Schematic Diagram Outdoor Unit AS-W096QGG1, AS-W126RGH1 AS-W186TGH1, AS-W246TGH1, AS-W246TLG1 REVERSING HEAT SINK OUTDOOR PIPE TH. COMP TH. OUTDOOR WIRING DIAGRAM VALVE REACTOR Motor OR YL WCN- WCN- CN-COIL1 CN-COIL2 CN-TH2 CN-TH1 CN-D-PIPE CAP1 CAP2 FAN1 4WAY WCN-NOISE 4(BK) WCN-NOISE 1(BK)

  • Page 53: Components Location

    Schematic Diagram Components Location INDOOR MAIN P.W.B ASSEMBLY (DC PART) • TOP VIEW • BOTTOM VIEW INDOOR MAIN P.W.B ASSEMBLY (AC PART) • TOP VIEW • BOTTOM VIEW Service Manual 53...
  • Page 54 Schematic Diagram DISPLAY ASSEMBLY(AS-W096QGG1, AS-W126RGH1, AS-W186TGH1, AS-W246TGH1, AS-W246TLG1) TOP VIEW BOTTOM VIEW 54 Room Air Conditioner...
  • Page 55 Schematic Diagram OUTDOOR MAIN P.W.B ASSEMBLY(AS-W096QGG1, AS-W126RGH1) • TOP VIEW • BOTTOM VIEW Service Manual 55...
  • Page 56 Schematic Diagram OUTDOOR MAIN P.W.B ASSEMBLY(AS-W186TGH1, AS-W246TGH1) • TOP VIEW • BOTTOM VIEW 56 Room Air Conditioner...

  • Page 57: Troubleshooting Guide

    Troubleshooting Guide Troubleshooting Guide Refrigeration Cycle Diagram (1) Model Capillary Tube INDOOR UNIT OUTDOOR UNIT CHECK VALVE LIQUID SIDE 3-WAY VALVE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR COOLING COMPRESSOR HEATING (2) Model Adopted Electrion Expansion Valve INDOOR UNIT OUTDOOR UNIT LIQUID SIDE...

  • Page 58: Pipe Length And The Elevation

    Troubleshooting Guide Pipe Length and the Elevation Pipe Size Standard Max. Max. Additional Capacity Length Elevation Length Refrigerant (Btu/h) LIQUID B (m) A (m) (g/m) 3/8"(Ø9.52) 1/4"(Ø6.35) 4 or 7.5 7k~14k 1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 18k~28k 5/8"(Ø15.88) 1/4"(Ø6.35)

  • Page 59: 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 60 Troubleshooting Guide Air purging Required tools : hexagonal wrench, adjustable wrench, The air in the indoor unit and in the piping must be torque wrenches, wrench to hold the purged. If air remains in the refrigeration pipes, it will joints, and gas leak detector. affect the compressor, reduce to cooling capacity, and could lead to a malfunction.

  • Page 61: 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 62 Troubleshooting Guide Re-air Purging (Re-installation) Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder OPEN CLOSE • Procedure (6) Disconnect the charge set and the gas cylin- (1) Confirm that both the liquid side valve and the der, and set the Liquid side and Gas side gas side valve are set to the closed position.
  • Page 63 Troubleshooting Guide Balance Refrigerant of the 3-way Valve 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 64 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 65: 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 This is different from previous procedures. (1) Connect the charge hose to the charging Because you are charging with liquid refrigerant cylinder.

  • Page 66: 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 67: Self-Diagnosis Function

    Troubleshooting Guide Self-diagnosis function 1. The malfunction indicator of indoor (see the operating LED of the INDOOR) Error The cause of malfunction Malfunction indicator The operating state Code Indoor TH. is short or open. The operating LED will be blink- Keep operating state.
  • Page 68 Troubleshooting Guide Precaution in Service or Check Even after stopping the operation of product, it takes some time to discharge the remaining electricity of the electrolytic capacitor that was charged. Before starting a checking or repairing job, pull out the plug out of the outlet and make sure that the lamp on the control board outdoor unit is off.

  • Page 69: Electronic Parts

    Troubleshooting Guide Electronic Parts Refer to electronic contorol device drawing & schematic diagram. The Product doesn’t operate at all. Trouble 1 Turn off the main power and wait to 10 seconds Turn on the main power again. Does "Beeping" sound is made from the indoor unit? •...
  • Page 70 Troubleshooting Guide Product doesn't operate with the remote controller. Trouble 2 Turn on main power. While the compressor has been stopped, the compressor does not operate owing to the delaying function for 2 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 71 Troubleshooting Guide The Compressor/Outdoor Fan are unable to drive. Trouble 3 Turn on the main power. Operate Cooling Mode by setting the disired 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.
  • Page 72 Troubleshooting Guide When indoor Fan does not operate. Trouble 4 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.45 of micom and the part for driving SSR. •...
  • Page 73 Troubleshooting Guide When the horizontal louver does not operate. Trouble 5 • 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 •...
  • Page 74 Troubleshooting Guide The heater does not operate at all. Trouble 6 Turn off main power Check the wire connection of PTC Heater (Refer to Wiring Diagram) • Check the connecting condition of CN-PTC connector on the indor DC P.C.B Ass'y. •...
  • Page 75 Troubleshooting Guide The Outdoor Unit does not operate at all. Trouble 7 Does the Operating LED of indoor unit blink Refer to the self-diagnosis function. when Operation's ON? Is the Connection between indoor power Check the connecting state of connector relay Pin and terminal block No.
  • Page 76 Troubleshooting Guide When compressor does not operate normally. Trouble 8-1 DC Peak Error(Error Code Does the LED01M of outdoor PCB Ass'y Check the state of connecting cable (3 line) blink 6 times? between indoor and outdoor uint. Is the connecting state of connectors in out- •...
  • Page 77 Troubleshooting Guide When compressor does not oprate normally. Trouble 8-2 Communication error between Indoor and Outdoor (Error Code • Check the state of connecting cable Does the operating LED in display PCB (3 line) bewteen indoor and outdoor unit . Ass'y blink 5 times? •...
  • Page 78 Troubleshooting Guide When compressor does not oprate normally. Trouble 8-3 CT Error (Error Code • Check the state of connecting cable Does the operating LED in Display PCB (3 line) bewteen Indoor and Outdoor Unit . Ass'y blink 7 times? •...
  • Page 79 Troubleshooting Guide The problem of missing the connector (INDOOR MAIN PCB ASSY) Connectors Condition Problem (error mode) • Malfunctions all indoor & outdoor unit. OPEN • Malfunctions remocon, force, test operation mode. CN-AC/DC CN-FAN • Malfunctions indoor fan motor. OPEN •...

  • Page 80: Exploded View

    Exploded View Exploded View Indoor Unit 135312 152313 135314 267110 152302 131410 733010 359011 342800 159830 135311 354210 147581 35211B 268711-1 249951 346810 135516 268714-2 352150 146811 264110 268714-1 266090 W6640 W0CZZ 263230 80 Room Air Conditioner...

  • Page 81: Outdoor Unit

    Exploded View Outdoor Unit 435512 437211 263230-1 437212 554032 435301 435511 546810 552102-1 559010 649950 552201 552113 552116 552102-2 447910 268711 552202 561410 554160 550140 552203-1 437210 430410 552203-2 Service Manual 81...

  • Page 82: Replacement Parts List

    Replacement Parts List Replacement Parts List Indoor Unit PART No. LOCATION DESCRIPTION REMARKS AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1 AS-W246TLG1 131410 CHASSIS ASSMEBLY 3141A20006A 3141A20005A 3141A10002A 3141A10002A 3141A10002A 135311 GRILLE ASSEMBLY, DISCHARGE(INDOOR) 3531A10232Z 3531A10192Y 3531A10231Z 3531A10231Z 3531A10116G 135312 GRILLE ASSEMBLY, FRONT(INDOOR) 3531A24001D 3531A21018L 3531A21022G 3531A21022G 3531A20207C...

  • Page 83: Outdoor

    Replacement Parts List Outdoor Unit PART No. LOCATION DESCRIPTION REMARKS AS-W096QGG1 AS-W126RGH1 AS-W186TGH1 AS-W246TGH1 AS-W246TLG1 261704 TRANSFORMER, POWER 6170A20004A 6170A20004A 6170A20004A 6170A20004A 6170A20004A 263230-1 THERMISTOR ASSEMBLY 6323A20001C 6323A20001C 6323A20001B 6323A20001B 6323A20001B 263230-2 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G 6323A20003C 6323A20003C 6323A20003C 430410...
  • Page 84 February, 2007 P/No.: 3828A20195S Printed in Korea...

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