LG AS-W2465DH0 Manual

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Room Air Conditioner

SVC MANUAL(Exploded View)

MODEL : AS-W2465DH0

AS-W2465DH1

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual.

Only for authorized service personnel.

Table of Contents

Troubleshooting

Summary of Contents for LG AS-W2465DH0

Page 1: Room Air Conditioner
Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : AS-W2465DH0 AS-W2465DH1 CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
Page 2: Table Of Contents
Test Running ...........................24 Functions............................25 Operation ............................28 Disassembly............................38 Troubleshooting Guide ........................41 Schematic Diagram ........................63 Product Specifications ........................67 Exploded View ..........................68 - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 3: Lg Model Name
LG Model De velopment Serial No. * ARTCOOL COLOR Walnut Mirror White Gogh Sisley Blue Wood Quran Mecca Metal Cherry - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 4 Wire remocon Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5: Safety Precautions
Do not modify or extend the power cord. securely. • There is risk of fire of electric shock. • No grounding may cause electric shock. - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 6 • If the base collapses, the air conditioner could fall product. with it, causing property damage, product failure, and personal injury. - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 • There is risk of fire, failure of the product, or electric • There is risk of fire or failure of product. shock. - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 Use two or more people to lift and transport the air conditioner. • To avoid vibration or water leakage. • Avoid personal injury. 90˚ - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 • There is risk of personal injury and failure of product. • There are sharp and moving parts that could cause personal injury. - 9 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 10: Dimensions
This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Indoor Unit Installation plate Model 24k Btu Series Dimension 1090 - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 11: Outdoor Unit
Dimensions Outdoor Unit Gas side Liquid side MODEL 24k Btu Series 76.4 - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 12: Installation
More than 60cm More than 10cm More than 10cm More More than 70cm than 60cm - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 13: How To Fix Installation Plate
Distance (mm) CHASSIS (Grade) 7k, 9k, 12k, 14k 18k, 24k Adhesive Only the desired direction Connecting part Drain hose - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14: Flaring Work And Connection Of Piping
Yoke ing and drain hose, especially power Cone cord and connecting cable. Copper pipe Clamp handle Red arrow mark - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15: For Right Rear Piping
Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(click- ing sound). Pipe Vinyl tape(narrow) - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 16: For Left Rear Piping
• Insert the spacer etc. between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall. Indoor unit Spacer Installation plate - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 18: Connection Of The Pipes-Outdoor
. m inch Ø9.52 Ø15.88 Outdoor unit Gas side piping (Bigger diameter) Liquid side piping (Smaller diameter) Torque wrench - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19: Connecting The Cable Between Indoor Unit And Outdoor Unit
The power connecting cable connecting the indoor and outdoor unit should be selected according to the following specifications (Type "B" approved by HAR or SAA). Grade NORMAL CROSS -SECTIONAL AREA Cable Type(B) H07RN-F - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors. - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 21: Checking The Drainage And Forming The Pipings
Tip of drain hose Less than dipped in water Trap 50mm gap Water Water Water Waving leakage leakage leakage Ditch - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 22: Air Purging
Usually, the cylinder is used in a vertical standing position. - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 This completes air purging with a vacuum pump. The air conditioner is now ready to test run. Vacuum pump - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 24: Test Running
Outside ambient The pressure of the gas side Refrigerant TEMP. service valve. R-410A 35°C (95°F) 8.5~9.5kg/cm G(120~135 P.S.I.G.) Power button - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25: Functions
--- Lights up in Preheat Mode (for Heating Model) --- Lights up in Plasma Air Clean Mode --- Lights up in during Energy-Saving Cooling Mode Operation (Optional) - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 Hot-start Control (Heating) • The indoor fan stops until the evaporator pipe temperature will be reached at 34°C. Heater (Optional) - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 (Heating Mode) of outdoor temp. below 24°C (Cooling Mode) of outdoor temp. Discharge Pipe Temp. Control Low Ambient Over Heating Protection (Comp.) - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 28: Operation
➔ compressor, outdoor fan is turned on according to the condition of the room temperature. Indoor pipe temp. Comp. free 6˚C 7˚C Comp. Step 4 3˚C Comp. Step 2 0˚C Comp. off - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29: Cooling Mode Operation
• The second defrost starts only when the outdoor pipe temperature falls below -6°C after 35 minutes passed from ending of the first defrost and more than 4 minutes operation of compressor. - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 30: Protection From Total Current Control
15.5 cf. I1 is set the lowest level between intial value and in case dectection of dc paeak current. - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 31: Swing Mode
Start Mode7 Mode7 Mode6 Mode6 Mode5 Start Mode5 Mode4 Mode4 Mode3 8° Mode3 8° Mode2 Mode2 Mode1 OPEN OPEN - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 32: Sleep Timer Operation
(Setting temp. +2˚C ) 1.0°C down 1.0°C down Heating OFF temp. (Setting temp. +4°C) Sleep time ( hr ) - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 33: Forced Operation
• If it’s 5 times within 1 hour in case of the temperature of outdoor pipe TH is over 65°C while the compressor is operating, the appliance turns off and display ERROR CODE 21. - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 34: Portection From Overheating Of Power Module
T3 °C AS-W2465DH1 T2 °C T1 °C -13 °C COMP Freq. Free Fc-1 Fc-2 Fc-2 Fc-1 Free Fh min - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 Setting Open step 4-Way Setting Setting Speed Outdoor Speed Hi Speed Setting Speed Indoor Start Starting Pre-Heat Deice STEP - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 36: Auto Cleaning
Outdoor pipe temp. Outdoor fan On/Off control ° 0°C outdoor fan On/Off control °… Outdoor temp. - 0°C Time(Min.) - 36 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37: Operation Mode
Used prior to using modes printed in blue at the bottom of buttons. 17. AUTO CLEAN(OPTIONAL) Used to set Auto Clean mode. 18. HEATER(OPTIONAL) - 37 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 38: Disassembly
1. Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 38 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39 2EA in the Eva Holder, at the right 1EA). • When repair, do not damage the Caution label. - 39 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 Cross-flow fan • Remove the left end of the cross-flow fan from the self-aligning bearing. - 40 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 41: Troubleshooting Guide
3-WAY VALVE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR COOLING COMPRESSOR HEATING - 41 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 42 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 (5) Use torque wrench to tighten the service port a gas cylinder. nut to a torque of 1.8kg.cm. - 43 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 44: Pumping Down
– Open the low-pressure valve on the charge set slightly to air purge from the charge hose. (5) Set the 2-way valve to the closed position. - 44 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 45: Re-Air Purging
– Close the valve on the gas cylinder and dis- charge the refrigerant until the gauge indicates 3 to 5 kg/cm - 45 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 46 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 46 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 47 (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dirty or depleted, replenish as needed. - 47 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 48: Gas Charging
1 minute and then repeat the procedure (pumping down-pin). - 48 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 Cond. Pipe High 6times 1time Heatsink High 6times 2times Cond. Pipe Low 6times 3times Heatsoml Th error (Open/Short) 6times 5times - 49 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 50: Cycle Troubleshooting Guide
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 50 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51: Electronic Parts
4) Replace P.C.B Ass'y 5) IC01A(KIA7036) 5) The voltage of micom pin 19 5) Replace P.C.B Ass'y : DC4.5V↑ - 51 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 : DC +5V Check point • Check the connecting circuit between MICOM PIN and CN-DISP1 PIN • Check receiver ass'y - 52 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 53 8 times Discharge Pipe Temp. High (INV) 3 times 2 times Discharge Pipe Temp. High (Cons.) 3 times 3 times - 53 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 54 6 times 2 times Heat sink temp. high Heat sink sensor (open/ short) 6 times 5 times Open / Short - 54 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 8. If the resistance of the sensor is 0 or 5Vdc, then sensor is abnormal. ¡ Repair or Change the PCB. - 55 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 56 5. Check the insulation from water at IPM part. ¡ Check the trace of water. 6. Check the IPM circuit. - 56 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 57 2. Check the fan operation is right. 3. Check the current. 4. Check the install condition. 5. Check the internal circuit. (C/T, Diode, Resistor) - 57 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 58 • Check the components. Check Point 1. Check the power source. 2. Check the components (B/Diode, Reactor, PSC Parts ) - 58 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 2. Check the install condition for over load. (Trans1, B/Diode, Diode, Resistance) 3. Check the SVC V/V open. 4. Check the leakage of refrigerant. - 59 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 60 2. Check the components 2. Check the insulation of IPM part. (IGBT, R04S, NF1, BD02S) 3. Check the compressor. (same with CH21) - 60 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 • CH 51 1. Check the insertion condition of EEPROM. 1. Check the indoor unit capacity. 2. Check the poor soldering - 61 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 62 1. Check the install condition for over load. (Refrigerant, Pipe length, Blocked, …) 2. Check the Outdoor temp. is very high. - 62 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 63: Schematic Diagram
Schematic Diagram Schematic Diagram Wiring Diagram Indoor Unit Models: AS-W2465DH0, AS-W2465DH1 Outdoor Unit Models: AS-W2465DH0, AS-W2465DH1 - 63 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 64: Components Location
Schematic Diagram Components Location Indoor Unit Models: AS-W2465DH0, AS-W2465DH1 • TOP VIEW • BOTTOM VIEW - 64 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 67: Product Specifications
42.9*11.8*7 42.9*11.8*7 (W*H*D) Outdoor 870*800*320 870*800*320 inch 34.25*31.5*12.6 34.25*31.5*12.6 Net Weight Indoor kg(lbs) 13(28.7) 13(28.7) Outdoor kg(lbs) 60(132.3) 60(132.3) - 67 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 68: Exploded View
359011 135311 354210 147581 352115 346810 35211B 268711A 135516 352150 266090 263230B W6640 264110 146811 263230A 267110 249951 268711D - 68 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 69 649950 268711F 552116 435511 437211 263230D 447910 552202 561410 W0CZZ 554160 261704 550140 552203B 437210 430411 435301 349480 552203A - 69 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 70 P/No.: 3828A20462R July. 2008...

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LG AS-W2465DH0 Manual

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