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LG Room
Air Conditioner
SERVICE MANUAL
MODELS: AS-W096URH0/UBH0/UWH0/UMH0
AS-W126URH0/UBH0/UWH0/UMH0/UCH0
AS-W096URH1/UBH1/UWH1/UMH1
AS-W126URH1/UBH1/UWH1/UMH1
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 AS-W096URH0/UBH0/UWH0/UMH0
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Page 1: Service Manual
LG Room Air Conditioner SERVICE MANUAL MODELS: AS-W096URH0/UBH0/UWH0/UMH0 AS-W126URH0/UBH0/UWH0/UMH0/UCH0 AS-W096URH1/UBH1/UWH1/UMH1 AS-W126URH1/UBH1/UWH1/UMH1 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.............................11 Product Specifications ..........................12 Installation ..............................13 Select the Best Location .........................13 Piping Length and Elevation........................14 Fixing Installation Plate ..........................14 Drill a Hole in the Wall ..........................15... -
Page 3: Lg Model Name
LG Model Name 2002 Code Type Code of Model Meaning Type of Airconditioner LS: LG Split Type Airconditioner Chassis Name of toll of Unit Ex. LS-R S R Chassis Capacity(Btu/h) Cooling/Heating Capacity Ex. "09" 9,000Btu/h Electric Range Electric Standard 115V/60Hz... - 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...
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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 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 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 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 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 •...
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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 hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE Indoor Unit Installation plate MODEL 9k, 12k Btu Series Unit... -
Page 11: Outdoor Unit
Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) MODEL 9k, 12k Btu Series unit Service Manual 11... -
Page 12: Product Specifications
Product Specifications Product Specifications Table-1 Model Name AS-W096U_0 AS-W126U_0 AS-W096U_1 AS-W126U_1 Item Unit kcal/h.(W) Btu/h. 2,200 2,800 2,200 2,800 2,637 3,516 2,637 3,516 Cooling Capacity Type kcal/h.(W) 2,268 3,024 2,268 3,024 Btu/h. 9,000 12,000 9,000 12,000 3,246 3,868 3,246 3,868 kcal/h.(W) 2,792 3,326... -
Page 13: Installation
Installation Installation Select the best Location Indoor unit 1. Do not have any heat or steam near the unit. 2. Select a place where there are no obstacles in front of the unit. More than More than 10cm 3. Make sure that condensation drainage can be conve- niently routed away. -
Page 14: Piping Length And Elevation
Installation Piping Length and Elevation Pipe Size Capacity Standard Additional Max. Max. Elevation B (m) Length A (m) (Btu/h) Length (m) Refrigerant (g/m) LIQUID 3/8" 1/4" 4 or 5 1/2" 1/4" 4 or 5 Indoor unit Outdoor unit Outdoor unit Oil trap Indoor unit Outdoor unit... -
Page 15: Drill A Hole In The Wall
Installation Drill a Hole in the Wall • Drill the piping hole with a ø70mm hole core drill. WALL Drill the piping hole at either the right or the left with Indoor Outdoor the hole slightly slanted to the outdoor side. Flaring Work Main cause for gas leakage is due to defect in flaring work. -
Page 16: Connection Of Piping
Installation Check 1. Compare the flared work with the figure by. Smooth all round Inside is shiny without scratches 2. If a flared section is defective, cut it off and do flaring work again. = Improper flaring = Inclined Surface Cracked Uneven damaged thickness... - Page 17 Installation 4. Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks of the rear Connecting top of the indoor unit with the upper edge of the cable installation plate.) Ensure that the hooks are properly seated on the installation plate by moving it left and Drain hose right.
- Page 18 Installation For left rear piping 1. Route the indoor tubing and the drain hose to the required piping hole position. Connecting 2. Insert the piping, drain hose, and the connecting cable cable into the piping hole. 3. Insert the connecting cable into the indoor unit. Drain pipe •...
- Page 19 Installation Wrap the insulation material around the connecting Plastic bands Insulation material portion. 1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap. 2.
- Page 20 Installation CAUTION: Installation Information For left piping. Follow the instruction below. Good case • Press on the upper side of clamp and unfold the tubing to downward slowly. Bad case • Following bending type from right to left may cause damage to the tubing. 20 Room Air Conditioner...
- Page 21 Installation Outdoor Align the center of the pipings and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. Outdoor unit Liquid side piping • When tightening the flare nut with torque wrench, (Smaller diameter) ensure the direction for tightening follows the arrow on the wrench.
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Page 22: Connecting The Cables
Installation Connecting the Cables Indoor 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. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.) CAUTION: •... - Page 23 Installation Outdoor 1. Remove the control cover from the unit by loosening Outdoor Unit the screw. Connect the wires to the terminals on the control Terminal block board individually. 2. Secure the cable onto the control board with the cord Over 5mm clamp.
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Page 24: Checking The Drainage
Installation Checking the Drainage To check the drainage. 1. Pour a glass of water on the evaporator. Connecting area drain hose 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. -
Page 25: Forming The Piping
Installation Forming the Piping Form the piping by wrapping the connect- Seal small openings ing portion of the indoor unit with insula- around pipings with a tion material and secure it with two kinds gum type sealer. of vinyl tapes. Taping •... -
Page 26: Air Purging
Installation Air Purging Air purging The air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. -
Page 27: Finishing The Job
Installation Soap water method 1. Remove the caps from the 2-way and 3-way valves. Liquid side 2. Remove the service-port cap from the 3-way valve. 3. To open the 2-way valve turn the valve stem counterclock- wise approximately 90°, wait for about 2~3 sec, and close it. 4. -
Page 28: Test Running
Installation Test Running 1. Check that all tubing and wiring are properly connected. 2. Check that the gas and liquid side service valves are fully open. Prepare remote controller 1. Remove the battery cover by pulling it according to the arrow direction. 2. -
Page 29: Pump Down
Installation If the actual pressure is higher than shown, the system is most likely over-charged, and charge should be NOTICE removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added. PUMP DOWN This is performed when the unit is relocated or the refrigerant circuit is serviced. -
Page 30: 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 31 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 32 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...
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Page 33: 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 34 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 35 Operation Cooling mode operation • Operating frequency of compressor depend on the difference of the temperature. (= intake air Temp.- Compressor off Temp. • Compressor off temp.= setting temp. -0.5°C on temp. = setting temp. +0.5°C • If compressor operates at some operating frequency, the operating frequency of compressor cannot be changed within 30 seconds.
- Page 36 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. 26°C ≤...
- Page 37 Operation Heating mode operation • Operating frequency of compressor depend on the difference of the temperature (= compressor off temp. - intake air temp.) • Compressor off temp. = setting temp.+3.0°C on temp. = setting temp. • If compressor operates at some operation frequency, the operating frequency of compressor cannot be changed within 30 seconds.
- Page 38 Operation Fuzzy mode operation(Optional)s • 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 39 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 40 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 41 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 42 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 43 Operation Protection from total current control CT1 control • If the operating current reaches I1, the operating frequency of the compressor decrease. • After decreasing the operating frequency by 1step, if operating current is below I1 for 60 seconds continuous- ly, the operating frequency of compressor increase by 1step.
- Page 44 Operation Portection from overheating of power module • If the temperature of the heat sink TH. reaches over Toff, the Compressor stop instantly. • It will be limited the compressor operating frequency according to the heat sink TH.(refer to below FIG.) •...
- Page 45 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 46 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. •...
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Page 47: 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. • Hold up Inlet Grille Horizentally. • To remove the Grille, pull the lower left and right side of the grille toward you (slightly tilted) and lift it straight upward. - Page 48 Disassembly 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the dis- charge grille out from the chassis carefully. 4.
- Page 49 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. •...
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Page 50: Schematic Diagram
Schematic Diagram Schematic Diagram Electric Control Device • Indoor(AS-W096/126U_0,1 Series) 50 Room Air Conditioner... - Page 51 Schematic Diagram • Outdoor(AS-W096/126U_0,1 Series) Service Manual 51...
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Page 52: Wiring Diagram
Schematic Diagram Wiring Diagram Indoor Unit AS-W096/126U_0,1 Series WIRING DIAGRAM POWER MAIN PCB THERMISTOR MOTOR ZNR01F SH-CAPA. CN-IN STEP MOTOR CN-OUT STEP FUSE AC250V/T2A MOTOR RY-PWR H.V.B A/CL CN-COM TERMINAL 1 ( L ) 2 ( N ) BLOCK CN-MAIN LIMIT S/W-1 CONNECTOR FORCED... - Page 53 Schematic Diagram Outdoor Unit AS-W096U_0 Series AS-W126U_0 Series REVERSING HEAT SINK OUTDOOR OUTDOOR WIRING DIAGRAM PIPE TH. COMP TH. 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) TERMINAL BLOCK 20A/AC 250V FUSE...
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Page 54: Components Location
Schematic Diagram Components Location INDOOR MAIN P.W.B ASSEMBLY (DC PART) (AS-W096/126U_0,1 Series) • TOP VIEW • BOTTOM VIEW 54 Room Air Conditioner... - Page 55 Schematic Diagram DISPLAY ASSEMBLY(AS-W096/126U_0,1 Series) TOP VIEW BOTTOM VIEW Service Manual 55...
- Page 56 Schematic Diagram OUTDOOR MAIN P.W.B ASSEMBLY (AS-W096/126U_0 Series) • TOP VIEW • BOTTOM VIEW (AS-W096/126U_1 Series) • TOP VIEW • BOTTOM VIEW R 0 8 K R 0 8 K 56 Room Air Conditioner...
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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.
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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: Re-Air Purging
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 (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 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-...
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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 (1) Connect the charge hose to the charging This is different from previous procedures. 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 Error The cause of malfunction Malfunction indicator The operating state Code EEPROM Error The operating LED01M will be blink- Keep operating state. (EEPROM Check sum Error) ing once long-term and twice. Keep operating state. PSC Error The operating LED01M will be blink- (PSC Fault Error) ing once long-term and 3 times.
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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 •...
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Page 80: Exploded View
Exploded View Exploded View Indoor Unit 135312 146811 159830 152302 668713 146811 145200 668713 263020 237900 135080 733010 267110 359011 342800 354210 131410 352150 346810 249951 264110 W0CZZ 266090 35211B 263230 146811 159901 135311 268714 80 Room Air Conditioner... -
Page 81: Outdoor Unit
Exploded View Outdoor Unit 437210 263230 437212 554032 435301 435511 546810 552102 559010 649950 552201 552111 552116 447910 668711 552202 561410 554160 661400 550140 552203-1 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-W096U*H0 AS-W126U*H0 AS-W096U*H1 AS-W126U*H1 131410 CHASSIS ASSEMBLY 3141A20007B 3141A20007B 3141A20007B 3141A20007B 135080 DECORATION(TOP) 3508A20034E 3508A20034E 3508A20034E 3508A20034E 135080 DECORATION(BOTTOM) 3508A20034F 3508A20034F 3508A20034F 3508A20034F 135311 GRILLE ASSEMBLY,DISCHARGE 3531A10137B 3531A10137B 3531A10137B 3531A10137B... -
Page 83: Outdoor
Replacement Parts List Outdoor Unit PART No. LOCATION DESCRIPTION REMARKS AS-W096U*H0 AS-W126U*H0 AS-W096U*H1 AS-W126U*H1 263230 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G 6323A20003G 6323A20003G 430411 BASE ASSEMBLY,OUTDOOR 3041A20008M 3041A20008Z 3041A20066A 3041A20066A 435511 COVER ASSY, CONTROL(OUTDOOR) 3551A30058Z 3551A30066A 3551A30115G 3551A30115G 437210 PANEL ASSY, FRONT SUB 3721A20027H 3721A20027H 3721A20027Q 3721A20027Q... - Page 84 April, 2005 P/No.: 3828A20061Z Printed in Korea...