LG AS-H306DGM0(S30AHP-ND6/UD6) Manual

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Room Air Conditioner

SVC MANUAL(Exploded View)

MODEL :

AS-H306DGM0(S30AHP-ND6/UD6)

LS-C306DGB0(S326GC SD0)

LS-C306DGB0(S306GC SD0)

LS-C306DGM1(S306GP SD1)

LSNC306DGB0.AMBAIDA

LS-H306DGB0(S306GH SD0)

LS-H306DGM1(S326GQ SD1)

LS-H306DGM1(S306GQ SD1)

LS-H306DGM1(S30LHP)

LS-C302DGB1(S302CG SD1)

LS-C302DGM1(S302CP SD1)

LS-C362DGB1(S362CG SD1)

CAUTION

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

Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

LS-C362DGM1(S362CP SD1)

LS-H366DGM1(S366GQ SD1)

LS-H366DGB0(S366GH SD0)

LS-C366DGM1(S366GP SD1)

LS-C366DGB0(S366GC SD0)

LS-C366DGB0(S386GC SD0)

LS-H366DGM1(S386GQ SD1)

LS-H362DGB1(S362HG SD1)

AS-W246DGH0(S25AWN-ND6/UD6)

AS-H366DGM1(S36AHP-ND6/UD6)

AS-H366DGM2(S36AHP-ND7/UD7)

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Summary of Contents for LG AS-H306DGM0(S30AHP-ND6/UD6)

Page 1: Room Air Conditioner
Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) LS-C362DGM1(S362CP SD1) MODEL : AS-H306DGM0(S30AHP-ND6/UD6) LS-H366DGM1(S366GQ SD1) LS-C306DGB0(S326GC SD0) LS-H366DGB0(S366GH SD0) LS-C306DGB0(S306GC SD0) LS-C366DGM1(S366GP SD1) LS-C306DGM1(S306GP SD1) LS-C366DGB0(S366GC SD0) LSNC306DGB0.AMBAIDA LS-C366DGB0(S386GC SD0) LS-H306DGB0(S306GH SD0) LS-H366DGM1(S386GQ SD1) LS-H306DGM1(S326GQ SD1) LS-H362DGB1(S362HG SD1) LS-H306DGM1(S306GQ SD1) AS-W246DGH0(S25AWN-ND6/UD6) LS-H306DGM1(S30LHP)
Page 2: Table Of Contents
Components Location ..........................50 Troubleshooting Guide ..........................54 Refrigeration Cycle Diagram ........................54 2-way, 3-way Valve ..........................56 Cycle Parts...............................62 Electronic Parts ............................63 Exploded View...............................70 - 2 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 3: Lg Model Name
Nano Plasma F+4Way+(A/changeove)+A/clean+ Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry - 3 - Copyright ©2009 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 ©2009 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 ©2009 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 ©2009 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 ©2009 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 ©2009 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 ©2009 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~38k Btu Series Dimension 1209 - 10 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 • 24k, 30k, 32k Series Gas side 3-way valve Liquid side 2-way valve MODEL 24k, 30k, 32k Btu Series 76.4 - 11 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 12 • 36k, 38K Series Gas side 3-way valve Liquid side 3-way valve MODEL 36k, 38k Btu Series 1038 1035 - 12 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 13: Product Specifications
*3, 0.75mm *3 0.75mm *3, 0.75mm *2 0.75mm *3, 0.75mm Connecting Cable 2.5mm 2.5mm 2.5mm 2.5mm 2.5mm Power Cord - 13 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 *2 0.75mm *3, 0.75mm *2 0.75mm *3, 0.75mm *2 0.75mm*3,0.75mm*3 Connecting Cable 3.5mm 3.5mm 3.5mm 3.5mm 3.5mm*3 Power Cord - 14 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 Remocon Type 3/8"(9.52) Liquid Service Valve inch(mm) 3/4"(19.05) Sleeping Operation Drain Hose 0.75mm*3, 0.75mm*3 Connecting Cable 3.5mm*3 Power Cord - 15 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 16: Installation
• Oil trap should be installed every 5~7 meters. More than 60cm More than 10cm More than 10cm More More than 70cm than 60cm - 16 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 17: How To Fix Installation Plate
Left rear piping Right rear piping Distance (mm) CHASSIS (Grade) SD(24k, 30~38k) Adhesive Only the Connecting desired direction part Drain hose - 17 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 18: 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 - 18 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19: For Right Rear Piping
Press the lower left and right sides of the unit against the Pipe installation plate until the hooks engage into their slots(click- Vinyl tape(narrow) ing sound). - 19 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 20: 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 - 20 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 22: Connection Of The Pipes-Outdoor
Ø6.35 Ø9.52 Ø12.7 Ø15.88 Ø19.05 Outdoor unit Gas side piping (Bigger diameter) Liquid side piping (Smaller diameter) Torque wrench - 22 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 23: Connecting The Cable Between Indoor Unit And Outdoor Unit
Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. - 23 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 24: Connect The Cable To The Outdoor Unit
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. - 24 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25: 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 - 25 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 26: Air Purging
Usually, the cylinder is used in a vertical standing position. - 26 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 This completes air purging with a vacuum pump. The air conditioner is now ready to test run. Vacuum pump - 27 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 28: Test Running
The pressure of the gas side Refrigerant TEMP. service valve. R-22 35°C (95°F) 4~5kg/cm G(56.8~71.0 P.S.I.G.) R-410A 35°C (95°F) 8.5~9.5kg/cm G(120~135 P.S.I.G.) ON/OFF button - 28 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29: Operation
24°C ≤ Intake Air Temp<26°C ➲ Intake Air Temp-1°C 18°C ≤ Intake Air Temp<24°C ➲ Intake Air Temp-0.5°C ➲ 18°C Intake Air Temp<18°C - 29 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 30: Defrost Control
• While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off. - 30 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 31: Sleep Timer Operation
• While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation. - 31 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 32: Test Operation
• When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds. • When the appliance-pause key is input by the remote control, the long "beep—" sounds. - 32 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 33: Portection From Overheating Of Power Module
AS-W246DGH0 T3 °C T2 °C T1 °C -13 °C COMP Freq. Free Fc-1 Fc-2 Fc-2 Fc-1 Free Fh min - 33 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 34: Display Function
• Indoor room temperature • Indoor Thermistor (once) thermistor open/short assembly check • Indoor pipe temperature thermistor open/short. 3sec 3sec 3sec - 34 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35: Remote Control Operations
Used prior to using modes printed in blue at the bottom of buttons. 17. AUTO CLEAN (OPTIONAL) Used to set Auto Clean mode. - 35 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 36: Disassembly
1. Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 36 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 2EA in the Eva Holder, at the right 2EA). • When repair, do not damage the Caution label. - 37 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 Cross-flow fan • Remove the left end of the cross-flow fan from the self-aligning bearing. - 38 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39: Schematic Diagram
Schematic Diagram Schematic Diagram Electric Control Device • Heating & Cooling Models 4WAY - 39 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 41: Wiring Diagram
Schematic Diagram Wiring Diagram • AS-H306D SERIES Indoor Unit Outdoor Unit - 41 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 42: Outdoor Unit
Schematic Diagram • LS-C306D SERIES, LS-C302D SERIES, LSNC306DGB0.AMBAIDA Indoor Unit Outdoor Unit - 42 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 Schematic Diagram • AS-H366DGM1, AS-H366DGM2 Indoor Unit Outdoor Unit - 48 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 50: Components Location
Schematic Diagram Components Location MAIN P.W.B ASSEMBLY • TOP VIEW • BOTTOM VIEW - 50 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51 Schematic Diagram Indoor Unit Models: AS-W246DGH0 • TOP VIEW • BOTTOM VIEW - 51 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 Schematic Diagram Outdoor Unit Models: AS-W246DGH0 • TOP VIEW • BOTTOM VIEW - 52 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 54: Troubleshooting Guide
HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 54 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 55 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 56: 2-Way, 3-Way Valve
Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 56 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 57: Pumping Down
R-22. Thus, the high pressure side gauge of charge set should be used higher pressure gauge of 50kg/cm2 range. - 57 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 58 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 58 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 If the vacuum pump oil becomes dirty or depleted, replenish as needed. Use vacuum pump equipped with check value applied to be prevented from flowing backward. - 59 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 60: Gas Charging
1 minute and then Pay attention not to charge other refrigerant. repeat the procedure (pumping down-pin). - 60 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 P = 3 + 0.0123 x T + 0.8 x T . g) Where, P : Suction Pressure(kg/cm Tout : Outdoor Temperature(˚C) : Indoor Temperature(˚C) - 61 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 62: Cycle Parts
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 62 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 63: Electronic Parts
• IC01A(KIA7036, Reset IC) • Voltage of IC No.1, • Replace faulty parts OSC01B(8MHz) (DC +4.5V over) and Soldering condition. - 63 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 64: The Product Is Not Operate With The Remote Controller
Check point • Check the connecting circuit between CN-DIS1 - R11L(100Ω) - C01A(100nF) - MICOM PIN • Check Receiver Assembly - 64 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 65: Compressor/Outdoor Fan Are Unable To Drive
• Check the abnormal condition for the component of Compressor/Outdoor Fan Motor. • Check the "open" or "short" of conmecting wires between indoor and outdoor. - 65 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 66: When Indoor Fan Does Not Operate
The voltage of PIN NO 1(orange) and 3(yellow) of CN-MOTOR. About AC 180V over About AC 50V over TRIAC is not damaged TRIAC Check - 66 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 67: When Vertical Louver Does Not Operate
• Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver - 67 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 68: When Heating Does Not Operate
Between Micom DC 5V DC 0V (NO.51) and GND Between IC02M Below DC 1V About DC 12V (NO.11) and GND - 68 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 69 • 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. - 69 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 70: Exploded View
352115 346810 146811A 135516 352116 266090 268711A Part for 352150 Plasma Model 147581A 146811B W0CZZ 263230 268711B W6640 147581B - 70 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 71 352115 346810 146811A 135516 352116 266090 268711A Part for 352150 Plasma Model 147581A 146811B W0CZZ 263230 268711B 147581B W6640 - 71 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 72 W0CZZB 546810 268711C 559010 W6920 649950 552202 447910 554160 561410 Part for H/P Model 552116 550140 552203A 430411 552203B - 72 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 73 546810 268711C 559010 W6920 649950 W6640 552202 447910 554160 561410 Part for H/P Model 552116 550140 552203A 430411 552203B - 73 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 80 435511 546810 559010 552200 649950 137213B 263230B 437211 552113 552116 447910 552202 561410 554160 550140 435301 552203A 430411 552203B - 80 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 81 FEBRUARY, 2009 P/NO : 3828A20195Z...

This manual is also suitable for:

Ls-c306dgb0(s326gc sd0)Ls-h306dgb0(s306gh sd0)Ls-h306dgm1(s326gq sd1)Ls-h306dgm1(s306gq sd1)Ls-h306dgm1(s30lhp)Ls-c302dgb1(s302cg sd1) ... Show all

LG AS-H306DGM0(S30AHP-ND6/UD6) Manual

LG Model Name

Safety Precautions

Dimensions

Product Specifications

Installation

Flaring Work and Connection of Piping

Connecting the Cable between Indoor Unit and Outdoor Unit

Checking the Drainage and Forming the Pipings

Air Purging

Test Running

Operation

Disassembly

Schematic Diagram

Troubleshooting Guide

Exploded View

Quick Links

Room Air Conditioner

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