lg room air conditioner service manual – models lwhd 1500er, lwhd 1800r, l1804r

LG RoomAir ConditionerSERVICE MANUAL

LG

MODELS: LWHD1500ER,LWHD1800R,L1804R

CAUTION

website http://www.lgappliances.com

• BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

2 Room Air Conditioner

Air Conditioner Service Manual

TABLE OF CONTENTSSafety Precautions..........................................................................................................................................3

Dimensions .....................................................................................................................................................5

Outside dimensions....................................................................................................................................5

Product Specifications ..................................................................................................................................6

Installation .......................................................................................................................................................7

Select the Best Location ...........................................................................................................................7

Installation Check .......................................................................................................................................7

How to Secure the Drain Pipe ....................................................................................................................7

How to Install..............................................................................................................................................8

Cabinet Installation.....................................................................................................................................9

Operation ......................................................................................................................................................11

Function of Controls .................................................................................................................................11

Disassembly ..................................................................................................................................................12

Mechanical Parts......................................................................................................................................12

Air Handling Parts ....................................................................................................................................13

Electrical Parts .........................................................................................................................................14

Refrigerating Cycle...................................................................................................................................16

Schematic Diagram .......................................................................................................................................19

Electronic Control Device .........................................................................................................................19

Wiring Diagram.........................................................................................................................................20

Components Location ..............................................................................................................................21

Troubleshooting Guide .................................................................................................................................22

Piping System ..........................................................................................................................................22

Troubleshooting Guide .............................................................................................................................23

Electrical Parts Troubleshooting Guide ....................................................................................................25

Electric Parts ............................................................................................................................................29

Exploded View ..............................................................................................................................................35

Replacement Parts List ................................................................................................................................36

Service Manual 3

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions mustbe followed.■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

WARNING■ Installation

Do not use damaged power cord plugs, or aloose socket.

• There is risk of fire or electric shock.

Always use the power plug and socket withthe ground terminal.

• There is risk of electric shock.


Safety Precautions

Do not modify or extend the power cord.

• There is risk or fire or electric shock.

Do not install, remove, or re-install the unit byyourself(customer).

• There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installingthe product.

• Sharp edges could cause injury. Be especially carefulof the case edges and the fins on the condenser andevaporator.

Do not store or use flammable gas or com-bustibles near the air conditioner.

• There is risk of fire or failure of product.

Be sure the installation area does not deterio-rate with age.

• If the base collapses, the air conditioner could fall withit, causing property damage, product failure, and per-sonal injury.

Sharp edges

Gasolin

Service Manual 5

Dimensions

Dimensions

D

W

H

'F

TIMER POWERMODE

TEMP

FANSPEED

F1 LOWF2 MEDF3 HIGH

Dry Timer

Fan

EnergySaver

Cool

W mm(inch) 660(25 31/32)

H mm(inch) 428(16 27/32)

D mm(inch) 680(26 27/32)

Model

DimensionHBLG1203R

Outside Dimensions

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to theair conditioner.

This symbol indicates special notes.NOTICE

Symbols Used in this Manual


Specfications

Product Specifications

* DB : dry bulb** WB : wet bulb

Note: Please refer to Label Quality on the product Since this sepcification may bechanged for improving performance.

LWHD1500ER LWHD1800R L1804RMODELSITEMS

POWER SUPPLY

COOLING

HEATING

CAPACITY (BTU/h)

OPERATINGCONDITION

INPUT (W)

RUNNING CURRENT (A)

E.E.R (BTU/W.h)

CAPACITY (BTU/h)

INPUT (W)

RUNNING CURRENT (A)

E.E.R (BTU/W.h)

INDOOR(℃)

OUTDOOR(℃)

REFRIGERANT(R-22) CHARGE

EVAPORATOR

CONDENSER

FAN,INDOOR

FAN,OUTDOOR

FAN SPEEDS,FAN/COOLING/HEATING

FAN MOTOR

OPERATION CONTROLROOM TEMP CONTROL

AIR DIRECTION CONTROL

CONSTRUCTION

PROTECTOR

POWER CORD

DRAIN SYSTEM

NET WEIGHT

OUTSIDE DIMENSION(W X H X D)

FAN MOTOR

COMPRESSOR

(lbs/kg)

(inch)

(mm)

1Φ，115V，60Hz 1Φ，208/230V，60Hz

15,000 17,500/18,000

1380 1800/1850

12.0 9.0/8.3

10.8 9.7/9.7

- -

- -

- -- -

26.7(DB)* 19.4(WB)**

35(DB)* 23.9(WB)**

TURBO FAN

PROPELLER TYPE FAN WITH SLINGER RING

6 POLES

REMOTE CONTROLLER

THERMISTOR

VERTICAL LOUVER (RIGHT & LEFT)HORIZONTAL LOUVER (UP & DOWN)

SLIDE IN-OUT CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

3 WIRE WITH GROUDING

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE OR SPLASHED BY FAN SLINGER

126/57

3 ROW 11 STACKS, LOUVER-FIN TYPE

2 ROW 19 STACKS,L-BENDED TYPE

3/3

660 x 428 x 680

710g(24.9oz)680g(24.0oz)

25 31/32 X 16 27/32 X 26 27/32

Service Manual 7

Installation

Installation

Select the Best Location

Installation Check

How to Secure the Drain Pipe

1. To avoid vibration and noise, make sure the unit is installedsecurely and firmly.

2. Install the unit where the sunlight does not shine directly on theunit.If the unit receives direct sunlight, build an awning to shade thecabinet.

3. There should be no obstacle, like a fence, within 20" whichmight restrict heat radiation from the condenser.

4. To prevent reducing performance, install the unit so that louversof the cabinet are not blocked.

5. Install the unit a little obliquely outward not to leak the con-densed water into the room (about 1/2" or 1/4 bubble with level).

6. Install the unit with its bottom portion 30~60" above the floorlevel.

7. Stuff the foam between the top of the unit and the wall to pre-vent air and insects from getting into the room.

8. The power cord must be connected to an independent circuit.The green wire must be grounded.

9. Connect the drain tube to the base pan hole in the rear side ifyou need to drain (consult a dealer).Plastic hose or equivalent may be connected to the drain tube.

The setting conditions must be checked prior to initial starting.The following items are especially important check points when the installation is finished.1. Grounding wire (Green or Green and Yellow) is provided in the power cord. The green wire must be grounded.2. Connect to a single-outlet 15A circuit.

(or 20A circuit for Electric Heater Model)3. To avoid vibration or noise, make sure the air conditioner is installed securely.4 Avoid placing furniture or draperies in front of the air inlet and outlet.

In humid weather, excess water may cause the BASE PAN to overflow. To drainthe water, remove the DRAIN CAP and secure the DRAIN PIPE to the rear holeof the BASE PAN. Press the drain pipe into the hole by pushing down and awayfrom the fins to avoid injury.

Optional 1. Install the drain pan over the corner of the cabinet where you removed

the plug with 4 (or 2) screws.2. Connect the drain hose to the outlet located at the bottom of the drain

pan. You can purchase the drain hose or tubing locally to satisfy yourparticular needs. (Drain hose is not supplied).

3. Select the most appropriate connection from among the following figures(by considering the hole of the unit) to fit drain pan to your own unit.

About 1/2"Over 20"

HEATRADIATION

FENCEAWNINGFOAM

COOLEDAIR

30-6

0"

Level

1/4 Bubble

Drain pipe

Drain cap

Fig. 4Fig. 3

Fig. 2DRAINPAN DRAIN HOSE

Fig. 1

CABINET SCREW

Figure 1


Installation

How to Install

When Using Installation Kits1. Window Requirements

This unit is designed for installation in standard double hung windows with actual openingwidths from 29" to 41".The top and bottom window sash must open suffi-ciently to allow a clear vertical opening of 16" fromthe bottom of the upper sash to the window stool.

2. Installation Kits Contents

29" to 41"

18" min Stool

Interior wall

26" min(Without frame curtain)

OffsetLess 11/4"

Sill

Exterior

1 2 3 4

8 11

1213

9765

10

■ Top retainer bar is inthe product package.

NO. NAME OF PARTS Q'TY

1 FRAME CURTAIN 2

2 SILL SUPPORT 2

3 BOLT 2

4 NUT 2

5 SCREW(TYPE A) (10mm(2/5")) 16

6 SCREW(TYPE B) D5.1mm(0.2")/16mm(0.63") 3

7 SCREW(TYPE C) D4.1mm(0.17")/16mm(0.63") 5

8 FOAM-STRIP 1

9 FOAM-PE (600mm x 25mm x 2mm) 1

10 WINDOW LOCKING BRACKET 1

11 FOAM-PE (920mm x 30mm x 2mm) 1

12 DRAIN PIPE 1

13 FRAME GUIDE 2

Service Manual 9

Installation

Cabinet Installation1. Open the window. Mark a line on the center of the window

stool between the side window stop moldings. Loosely attach the sill bracket to the support bracket usingthe carriage bolt and the lock nut.

2. Attach the sill bracket to the window sill using the screws(Type B).Carefully place the cabinet on the window stool and align thecenter mark on the bottom front with the center line markedwindow stool.

3. Using the M-screw and the lock nut, attach the supportbracket to the cabinet track hole. Use the first track holeafter the sill bracket on the outer edge of the window sill.Tighten the carriage bolt and the lock nut. Be sure the cabi-net slants outward.

CAUTION: Do not drill a hole in thebottom pan. The unit is designed tooperate with approximately 1/2" ofwater in bottom pan.

4. Pull the bottom window sash down behind the Top retainerbar until they meet.

1. Do not pull the window sash down so tightly that the move-ment of Frame curtain is restricted. Attach the cabinet to thewindow stool by driving the screws (Type B) through thecabinet into window stool.

2. The cabinet should be installed with a very slight tiltdownward toward the outside.

NOTICE

SupportBracket

Lock nut

SillBracket

CarriageBolt(M-Screw)

Front angleWindow stool

Window sash Top retainer bar

Cabinet

Foam-PE

Frame curtain

Screw(Type B)

Front Angle

Sash track

Foam-PE

CabinetTrack hole

SupportBracket

Carriage boltand lock nut

Machine screw (Type D)and lock nut

Outer edge of window sill

Screw(Type B)Sill bracket

Topretainerbar

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6


Installation

5. Pull each Frame curtain fully to each window sashtrack, and pull the bottom window sash down behindthe Top retainer bar until it meets.

6. Attach each Frame curtain the window sash by usingscrews (Type C). (See Fig. 7)

7. Slide the unit into the cabinet. (See Fig. 8)

8. Cut the Foam-strip to the proper length and insertbetween the upper window sash and the lower win-dow sash. (See Fig. 9)

9. Attach the Window locking bracket with a screw(Type C). (See Fig. 10)

10. Attach the front grille to the cabinet by inserting thetabs on the grille into the tabs on the front of the cab-inet. Push the grille in until it snaps into place. (SeeFig.11)

11. Lift the inlet grille and secure it with a screw (Type A)through the front grille. (See Fig. 11)

12. Window installation of room air conditioner is nowcompleted.

Power Cord

Screw (Type A)Screw

Window locking bracket

Foam-Strip

Screw(Type C)

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

CAUTION: For security purpose,reinstall screws (Type A) at cabinet'ssides.

Service Manual 11

Operation

• Designed for COOLING ONLY.• Powerful and quiet cooling.• Slide-in and slide-out chassis for the simple instal-

lation and service.• Low air-intake, top cooled-air discharge.

• Built-in adjustable Thermistor• Washable one-touch filter• Compact size• Equipped with reliable and efficient rotary

compressor.

REMOTE CONTROLDISPLAY

'F

TIMER POWERMODE

TEMP

FANSPEED

F1 LOWF2 MEDF3 HIGH

Dry Timer

Fan

EnergySaver

Cool Power

Temp

Fan Speed

Timer Mode

1

2

3

4

51

2

6

3 45

PRECAUTION: The Remote Control unit will not function properly if strong light strikes the sensor windowof the air conditioner or if there are obstacles between theRemote Control unit and the air conditioner.

POWER BUTTONTo turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again.This button takes priority over any other buttons.ROOM TEMPERATURE SETTING BUTTONThis button can automatically control the temperature of the room. The temperature can be set within a range of 60°F to86°F by 1°F. (16°C to 30°C by 1°C)Select the lower number for lower temperature of the room.OPERATION MODE SELECTION BUTTONEvery time you push this button, it will shift among COOL, ENERGY SAVER, FAN and DRY.- Energy Saver: If Energy Save mode is selected, the fan stops when the compressor stops cooling.a

Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed.FAN SPEED SELECTOREvery time you push this button, it is set as follows. (Hi [F3] ➔ Low [F1] ➔ Med [F2] ➔ Hi [F3] ➔ Low [F1] ➔ ...)ON/OFF TIMER BUTTONYou can set the time when the unit will turn on or turn off automatically by pressing the timer button. If the unit is operating,this button controls the time it will be turned off. If the unit is off state, this button controls the time it will start. Every timeyou push this button, the remaining time will be set as follows.- Stopping operation

(1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours ➔ 6Hours ➔ 7Hours ➔ 8Hours ➔ 9Hours ➔ 10Hours ➔ 11Hours ➔12Hours ➔ 0Hour ➔ 1Hour ➔ 2Hours ➔ ... )

- Starting operation(1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours ➔ 6Hours ➔ 7Hours ➔ 8Hours ➔ 9Hours ➔ 10Hours ➔ 11Hours ➔12Hours ➔ off ➔ 1Hour ➔ 2Hours ➔ ... )

REMOCON SIGNAL RECEIVER66

Operation

Function of Controls


Disassembly

Disassembly

Mechanical Parts

— Before the following disassembly, CONTROL BOX set to OFF and disconnect the power cord.

1. Front Grille1. Open the lnlet grille downward and remove the air filter.2. Remove the screw that fastens the front grille.(See

Figure 13)3. Pull the front grille from the right side.4. Remove the front grille.(There are 4 hooks.)5. Re-install the components by referring to the removal

procedure, above.

2. Cabinet1. After disassembling the FRONT GRILLE, remove the 2

screws that fasten the cabinet at both sides.2. Remove the 2 screws that fasten the cabinet at back.3. Pull the base pan forward. (See Figure 14)4. Remove the cabinet.5. Re-install the components by referring to the removal

procedure, above.

3. Control Box1. Remove the front grille. (Refer to section 1)2. Remove the cabinet. (Refer to section 2)3. Remove the 2 screws which fasten the power cord.4. Disconnect the grounding screw from the evaporator

channel.5. Remove the 1 screw that fastens the control box cover.6. Remove the housing that connects PCB and motor

wire in the control box.7. Disconnect the housing that connects Plazma Air

Purifier.(Optional)8. Remove the screw at left cover of filter case and open

the cover to remove inner screw. (Optional)9. Remove the nut that fastens the terminal cover.10. Remove the terminal cover.11. Remove all the leads from the overload protector.12. Discharge the capacitor by placing a 20,000 ohm

resistor across the capacitor terminals.13. Raise the control box upward completely.

(See Figure 15)14. Re-install the components by referring to the removal

procedure, above. (Refer to the wiring diagram found on page 22 in thismanual and on the control box.)

POWER

MODE

FANSPEED

TIMER

˚C

TEMP

F1 LOWF2 MEDF3 HIGH Dry

Timer

Fan

EnergySaver

Cool

DEFROST

HEAT

COOL

INDOORDESIRED

ENERGYSAVER

AIRPURYFIERAUTORESTART

FAN

FAN

DRY

POWER

MODE

FANSPEED

TIMER

˚C

TEMP


Timer

Fan

EnergySaver

Cool

Figure 13

Figure 15Figure 15

Figure 14

Service Manual 13

Disassembly

Figure 16

Figure 17

Figure 18

Figure 19

4. Air Guide and Turbo Fan1. Remove the front grille. (Refer to section 1)2. Remove the cabinet. (Refer to section 2)3. Remove the control box. (Refer to section 3)4. Remove the 4 screws that fasten the brace.5. Remove the brace.6. Remove the 2 screws that fasten the air guide

upper.7. Remove the air guide upper.(See Figure 16)8. Remove the 2 screws that fasten the evaporator.9. Move the evaporator forward and pulling it upward

slightly. (See Figure 17)10. Pull out the hook of orifice by pushing the tabs

and remove it. (See Figure 18)11. Remove the clamp with a hand plier that secures

the turbo fan.12. Remove the turbo fan.13. Remove the 2 screws that fasten the air guide

from the base pan.14. Move the air guide backward, and pull out from

the base pan.(Move the air giude lower carefully.)15. Re-install the components by referring to the

removal procedure, above.

5. FAN1. Remove the cabinet. (Refer to section 2)2. Remove the brace (Refer to section 4)3. Remove the 5 screws that fasten the condenser.4. Move the condenser to the left carefully.5. Remove the clamp that secures the fan.6. Remove the fan. (See Figure 19)7. Re-install by referring to the removal procedure.

Air Handling Parts


6. Shroud1. Remove the fan. (Refer to section 5)2. Remove the shroud. (See Figure 20)3. Re-install the components by referring to the


7. Overload Protector1. Remove the cabinet. (Refer to section 2)2. Remove the nut that fastens the terminal cover.3. Remove the terminal cover. (See Figure 21)4. Remove all the leads from the overload protec-

tor.5. Remove the overload protector.6. Re-install the components by referring to the


8. Compressor1. Remove the cabinet. (Refer to section 2)2. Discharge the refrigerant system using a

FreonTM Recovery System.If there is no valve to attach the recovery sys-tem, install one (such as a WATCO A-1) beforeventing the FreonTM. Leave the valve in placeafter servicing the system.

3. Remove the overload protector. (Refer to sec-tion 7)

4. After purging the unit completely, unbraze thesuction and discharge tubes at the compressorconnections.

5. Remove the 3 nuts and the 3 washers which fasten the compressor.

6. Remove the compressor. (See Figure 22)7. Re-install the components by referring to the


Disassembly

Electrical Parts

Figure 20

Figure 21

Figure 22

Service Manual 15

Disassembly

9. Capacitor1. Remove the control box. (Refer to section 3)

2. Open the top cover from the control box.(See Figure 23)

3. Pull out the capacitor from the control box.

4. Disconnect all the leads of capacitor terminals.

5. Re-install the components by referring to theremoval procedure, above.

10. Power Cord1. Remove the control box. (Refer to section 3)

2. Open the top cover from the control box.(Refer to section 9)

3. Disconnect the front panel from the control box.(See Figure 24)

4. Disconnect two leads from the capacitor andrelay.

5. Pull out the power cord.

6. Re-install the component by referring to theabove removal procedure, above.(Use only one ground-marked hole for groundconnection.)

7. If the supply cord of this appliance is damaged, itmust be replaced by the special cord. (The special cord means the cord which has thesame specification marked on the supply cordattached at the unit.)

DEFROST

HEAT

COOL

INDOORDESIRED

ENERGYSAVER


FAN

FAN

DRY

DEFROST

HEAT

COOL

INDOORDESIRED

ENERGYSAVER


FAN

FAN

DRY

POWER

MODE

FANSPEED

TIMER

˚C

TEMP


Timer

Fan

EnergySaver

Cool

POWER

MODE

FANSPEED

TIMER

˚C

TEMP


Timer

Fan

EnergySaver

Cool

Figure 24

Figure 23


Disassembly

11. Motor1. Remove the cabinet. (Refer to section 2)

2. Remove the turbo fan. (Refer to section 4)

3. Remove the fan. (Refer to section 5)

4. Remove the 4 screws that fasten the motor fromthe air guide. (See Figure 25)

5. Remove the motor.

6. Re-install the components by referring to theremoval procedure, above.(See Figure 25)

12. Condenser

CAUTION: Discharge the refrigerantsystem using a FreonTM Recovery

System. If there is no valve to attach therecovery system, install one (such as aWATCO A-1) before venting the FreonTM.Leave the valve in place after servicingthe system.

1. Remove the cabinet. (Refer to section 2)

2. Remove the 4 screws that fasten thebrace.(Refer to section 4)

3. Remove the 5 screws that fasten the condenserand shroud.

4. After discharging the refrigerant completely,unbraze the interconnecting tube at the con-denser connections.

5. Remove the condenser.

6. Re-install the components by referring to notes.(See Figure 26)

13. Evaporator1. Remove the control box.(Refer to section 3)

2. Remove the air guide upper. (Refer to section 4)

3. Remove the 2 screws that fasten the evapora-tor.

4. Move the evaporator sideways carefully.(Refer to section 4)

5. After discharging the refrigerant completely,unbraze the interconnecting tube at the evapo-rator connections.

6. Remove the evaporator.

7. Re-install the components by referring to notes.(See Figure 27)

Figure 25

Figure 26

Figure 27

Refrigerating Cycle

Service Manual 17

Disassembly

— Replacement of the refrigeration cycle.1. When replacing the refrigeration cycle, be sure to

Discharge the refrigerant system using a FreonTM

recovery System.If there is no valve to attach the recovery system,install one (such as a WATCO A-1) before ventingthe FreonTM. Leave the valve in place after servicing the system.

2. After discharging the unit completely, remove thedesired component, and unbraze the pinch-offtubes.

3. Braze service valves into the pinch-off tube ports,leaving the valves open.

4. Braze the pinch-off tubes with Service valves.5. Evacuate as follows.

1) Connect the vacuum pump, as illustrated figure28A.

2) Start the vacuum pump, slowly open manifold valves A and B with two full turns counterclock-wise and leave the valves open.The vacuum pump is now pulling through valvesA and B up to valve C by means of the manifoldand entire system.

CAUTION: If high vacuum equip-ment is used, just crack valves A

and B for a few minutes, then open slowlywith the two full turns counterclockwise.This will keep oil from foaming and beingdrawn into the vacuum pump.

3) Operate the vacuum pump vaccum for 20 to 30minutes, until 600 microns of vaccum isobtained. Close valves A and B, and observevacuum gauge for a few minutes. A rise in pres-sure would indicate a possible leak or moistureremaining in the system. With valves A and Bclosed, stop the vacuum pump.

4) Remove the hose from the vacuum pump andplace it on the charging cylinder. See figure29B.Open valve C.Discharge the line at the manifold connection.

5) The system is now ready for final charging.

6. Recharge as follows :1) Refrigeration cycle systems are charged from

the High-side. If the total charge cannot be put in the High-side, the balance will be put in the suction line through the access valve which you installed as the system was opened.

2) Connect the charging cylinder as shown in figure 28B.With valve C open, discharge the hose at themanifold connection.

3) Open valve A and allow the proper charge to enter the system. Valve B is still closed.

4) If more charge is required, the high-side will not take it. Close valve A.

5) With the unit running, open valve B and add the balance of the charge.a. Do not add the liquid refrigerant to the Low-

side.b. Watch the Low-side gauge; allow pressure to

rise to 30 lbs.c. Turn off valve B and allow pressure to drop.d. Repeat steps b. and c. until the balance of the

charge is in the system.6) When satisfied the unit is operating correctly,

use the pinch-off tool with the unit still running and clamp on to the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos brazing and braze pinch-off tube closed. Turn off the unit, allow it to set for a while, and then test the leakage of the pinch-off connection.

14. Capillary Tube1. Remove the cabinet. (Refer to section s2)2. After discharging the refrigerant completely,

unbraze the interconnecting tube at the capillarytube.(See caution above)

3. Remove the capillary tube.4. Re-install the components by referring to notes.

NOTICE


Disassembly

Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capableof making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.

A

COMPOUND GAUGE

EVAPORATOR(LOW PRESSURE SIDE)

COMPRESSOR

CAPILLARY TUBE

CONDENSER(HIGH PRESSURE SIDE)

SEE INSETSBELOW

MANIFOLDGAUGE

B

Figure 28A-Pulling Vacuum Figure 28B-Charging

A

B

EXTERNALVACUUM PUMP

A

CHARGINGCYLINDER

LOW HI

B

C

Service Manual 19

Schematic Diagram

4W

AY

MA

IN P

OW

ER

CAPA

CIT

OR

MO

TO

RFA

N

35V

24

D02D

~D0

5D1N

400

4

SVC2

71D-

14A

CN-P

WR

FUSE

125V

/T2A

ZN

R01J

0.1/

275V

C01J

CN-M

OT

OR

120

1/2W

R01J

+

+

POW

ER T

RAN

S

17

220

C05D 10

V

C06D

25V

0.01

D05D

D02D

D03D

+C0

1D10

00

D04

DC0

3D 1000

16V

25V

C04

D0.

01

7805

IC02

DO

5V

IO

12V

50V

C02D

0.1

S/V

-

CN-4

WA

Y

33

11

IC01

MUL

N20

04A

161

12.1

KR0

2HR0

4H

6.2K

12V

SEG-e

HVB

SEG-f

VDD

5V

SEG-d

SEG

-c

Digi

t0 (

Scan

0)

SEG

-a

4W

AY

LOW

COM

P

SYN

C

Digi

t2 (

Scan

2)

Digi

t1 (

Scan

1)

Rx

Rece

iver

SDA

Osc in

Osc out

/Reset

R01B

3.6V

3

20.

01C0

1AS7

136

IC01

A

5V

RT8.

00M

GO

SC01

B1

R01A

5V

Vcc

GN

D

RECE

IVER

+

10V

220

C02L

Vou

t

680p

FC0

1L

R01L

TEST

10V

1uF

C02A

+

BZ01

ER0

1E

R02E

SCL

12V

ROO

M-T

HCN

-TH1

1 221

OR2

HO

R1H

1

44

LED

MO

DULE

Digi

t1

d

e

g

c

Digi

t2

f

Digi

t3

a

b

1213

Digi

t0

14

a

15

FAN

1

Digi

t4 (

Scan

4)

Digi

t3 (

Scan

3)

5V

IC02

G

10

R08G

R11G

R10G

R09G

R01G

5.1V

ZD0

2F

R03F

10K

0.00

1C0

1FR0

1F10

K

ZD0

1F5.

1V

C02F

0.00

1

7812

IIC

01D

234567891011

43

42

41

40

3938

3736

353422

1719

2120

1816

1514

1312

23 24 25 26 27 28 29 30 31 32 33

7

116

125

134

143

152

161

98

916 15 14 13 12 11 10

8

IC01

G

7651 432

152

143

134

125

116

107

98

R22H

R21H

12.1

K12

.1K

5V

SEG

-b

VSS5V

VAref

Room TH

Pipe TH

Option1

Option2

R02G

2b

R03G

3c

R04

G4

d

R05G

5e

R06G

6f

R07G

7g

111098

Tx

ION

MED HI

KEY0

KEY1

LED out0

LED out1

LED out2

LED

out3

Buzz

er

5V

1 3 5 7 9

1 3 5 7 9 13

13

COM

P

d

e

g

c

a

fb

d

e

g

c

a

fb

d

e

g

c

a

fb

D01G

SW01

G

TEM

P DO

WN

SW02

G

D02G

ON

/OFF

SW03

G

D03G

TIM

ER

SW04

G

D04

G

MO

DE

SW05

G

D05G

TEM

P UP SW

06G

D06G

FAN

HERM

C

RY-C

OM

PG

4A

-1A

-E-L

G

RY-H

I

RY-M

ED

RY-L

OW

RY-4

WA

Y

CN-T

ELE

Q01

TC1

04M

Q02

TA

104

M

5V

Q04

TA

104

M

Q03

TC1

04M

C03T

0.00

1

R01T

1K

D01T

1N4

148

C01T

0.1

C02T

0.00

1

5V

RY-C

OM

P

RY-4

WA

Y

RY-L

OW

RY-M

ED

RY-H

I

9

IC03

G

5 6 71 2 3 4

1012131418 151617 118

R02F

1K R04

F1K

2 1 9 8 7 6 5 4

5V

12V

5V 12V

1110 12

R01P

20K5V

A2

SCL

SDA

GN

D4

5

CAT

93C4

6

Vcc

EEPR

OM W

P21

A0

3A

178 6

5V

50V

25V

1%1%

1%1%

1M

20K

25V

12V

KID6

5783

AP

12V

12V

ULN

2004

A

ULN

2004

A

25V

1K

PKM

13EP

Y1K

20

-400

2

MIC

OM

TM

P87C

H47U

16

PIPE

-TH

11 2

2

CN-T

H2

R03P

20K

20K

R02P

SEG-g

FAN

TIM

ER

SLEE

P

DEFR

OST

DEFR

OST

1 2

COO

LHE

AT

INDO

OR

DESI

RED

11

FAN

(L1)

FAN

(L2)

FAN

(R1)

FAN

(R2)

ENER

GY

SAV

ER

AUT

OA

IRFA

N(R

3)FA

N(L

3)

INDO

OR

22DE

SIRE

D

PURI

FIER

REST

ART

680

680

680

680

680

680

680

680

680

330

330

3

11 12 10 7 98654 13 2

SMW

200-

03

SMW

250-

02

YW

396-

03A

V(Y

L)

YW

396-

09A

V

YW

396-

03A

V

CN-A

C/DC

5158

0-12

SMA

W20

0-02

CN-A

C/DC

5158

1-12

(YEO

NHO

)52

045-

124

552

044

-124

5(M

OLE

X)

STRA

IGHT

AN

GLE

Rx Tx

CN-1

2VSM

W20

0-03

(WH)

SW1

22

11

333

3

CN-C

ON

T

SMW

200-

03(B

L)CN

-HV

B

SMW

200-

03(Y

L)SW

22

2

113

3

22

11

J5

R04

P1K

FAN

(MO

DE)

DRY

0.01

25V

C05D

(RD)

J7

13

31

22

HVB

Electronic Control Device

Schematic Diagram


Schematic Diagram

Wiring Diagram

1

5

7

6

8

4

2

3

MOTOR

COMP.

CAPACITOR

DC PCBASSEMBLY

THERMISTOR

AIR FILTERASSEMBLY

AC PCBASSEMBLY

WIRING DIAGRAM 3854AR3563N

SWITCH

H.V.ASSEMBLY

BKCN-MOTOR

CN-PWR

DC12V

ZNR

01J

CN-12V

CN-HVB

RY-COMP3

4

FUSE250V/T2A

(115V/T2A)

RY-

LOW

RY-

ME

D

RY-

HI

CN-AC/DC

POWERTRANS

CN-AC/DC

CN-TH1

BLRD

RDBK

BL

R

S

COLP

YLOR

YLF

C

H

WH(BL)(Ribbed)

BK(BR)(Plain)

GN/YL(GN)

GN/YL(GN)

BK

RD

OR(BR)

1

5

7

6

84

2

3

MOTOR

COMP.

CAPACITOR

DC PCBASSEMBLY

THERMISTOR

AIR FILTERASSEMBLY

AC PCBASSEMBLY

WIRING DIAGRAM 3854AR3563P

SWITCH

H.V.ASSEMBLY

BKCN-MOTOR

CN-PWR

DC12V

ZNR

01J

CN-12V

CN-HVB

RY-COMP3

4

FUSE250V/T3.15A

RY-

LOW

RY-

ME

D

RY-

HI

CN-AC/DC

POWERTRANS

CN-AC/DC

CN-TH1

BLRD

RDBK

BL

R

S

COLP

YLOR

YLF

C

H

WH(BL)(Ribbed)

BK(BR)(Plain)

GN/YL(GN)

GN/YL(GN)

BK

RD

OR(BR)

S: Service PartsN: Non Service Parts

MOTOR ASSY

CAPACITOR

COMPRESSOR

OVERLOAD PROTECTOR

DC PCB ASSEMBLY

AC PCB ASSEMBLY

THERMISTOR

PLASMA FILTER ASSY

1

2

3

4

5

6

7

8

1

1

1

1

1

1

1

1

S

S

S

S

S

S

S

S

LOCATION NO. DESCRIPTION REMARKSQ'TY PER SET

Service Manual 21

Schematic Diagram

Components Location1. MAIN P.C.B ASSEMBLY

R01T

CN-HVB

C03T Q03T Q04T

C04DC05D

C01D

C02D

D02D

D03D

D04D

D05D

IC01

D

HEAT

SIN

K

QIC02DT

J5

Q01T

CN-TELECN-TH2

CN-PWR

CN-MOTOR

ZNR01J CN-4WAY

C01JR01J

E03J

E04JPOWERTRANS

FUSERY-COMP

E05J

E02J

J8

E01J

J6

J2

J3 RY-H

I

ASSEMBLY:6871A20167

RY-M

EDRY

-LOW

RY-4

WAY

J7

J4

J1

D01T

C02TQ0

2T

CN-C

ONCN

-12V

CN-A

C/DC

J12J13

RECEIVERC02L

J21J22J23

J18

J19

J17

BZ01E

SW03G

POW

ERSW

06GTEM

P UPSW

02GTEM

P DOW

NSW

05GM

ODE

SW01G

FAN SPEED

C05D

J04

CN-AC/DC

J05J01J02

R01G

R02GR03GR04GR05GR06GR07GR08GR09G

CN-TH1

SW04G

TIMER

J2ZD02F

ZD01F

C02AIC01A

J08J14J15

J16R10G

J07J08

J09

J10J11

IC03GOSC01B

J24

J20

2. DISPLAY P.C.B. ASSEMBLY


Troubleshooting Guide


Piping System

Figure 29 is a brief description of the important components and their function in what is called the refrigerationsystem. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

MOTOR

COMPRESSOR

OIL

(LIQUID REFRIGERANT)

CAPILLARY TUBE

OUTSIDE COOLINGAIR FOR REFRIGERANTPASS THROUGH

SUCTION LINECOOL LOW PRESSURE VAPOR

COOLEDAIR

COMPLETE LIQUIDBOIL OFF POINT

LIQUIDPRESSUREDROP

ROOM AIR HEAT LOAD

VAPOR INLETHOTDISCHARGEDAIR

LIQUID OUTLET

HIGH PRESSURE VAPOR

LIQUID REFRIGERANT

LOW PRESSURE VAPOR

ROOM AIR CONITIONER

EVAPORATOR COILS CONDENSER COILS

CYCLE OF REFRIGERATION

CAPILLARY TUBE

COMPRESSOR

TURBO FAN

CONDENSER COIL

EVAPORATOR COIL

FAN

MOTOR

Figure 29

Service Manual 23



In general, possible trouble is classified in two kinds.The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective AirConditioning caused by a defect in the refrigeration circuit and improper application.

Unit runs but poor cooling.

Ineffective Cooling

Check outdoor coil(heat exchanger) & the fanoperation.

Check gas leakage.

Repair gas leak.

Replacement of unit if theunit is beyond repair.

Satisfactory operation withtemperature difference ofinlet & outlet air ; 44~50°F(7~10°C)

Check heat load increase.

Clean condenser.

Not on separate circuit.

Check inside gaspressure.

Adjusting of refrigerantcharged.

Malfunction of compressor.

Replacement ofcompressor.

Check cold air circulation for smooth flow.

Dirty indoor coil(Heat exchanger)

Correct above trouble

Check clogging in refrigera-tion circuit.

Repair clogging in refrigera-tion circuit.

Obstruction at air outlet

Clogged of air filter.

Malfunction of fan



Fails to Start

Check circuit breakerand fuse.

Gas leakage of feeler bulbof thermostat

Check of control switch.

Fan only fails to start.

Improper wiring.

Defect of fan motorcapacitor.

Irregular motor resistance( ).Irregular motor insulation( ).

Replacement of fan motor.

Regular but fails to start.

Replacement of compressor(locking of rotor, metal).

Improper thermostat setting.

Loose terminal connection.

Improper wiring.

Irregular motor resistance ( )

Irregular motor insulation ( )

Replacement of compressor(Motor damaged)

Drop of power voltage.

Capacitor check.

Replacement

Compressor only fails tostart.

Defect of compressorcapacitor.

Check of power source.

Check of control switchsetting.

Service Manual 25


• Check the Fuse.• Check the wiring diagram.

Is the Trans input power AC 115V?(208/230V for LWL1230WAL)

Is the Trans output powerabout AC 14V?

Is shorted the Trans. output?

Is output Voltage of IC01DDC 12V?


Is the voltage No.18 of MicomDC 5V?

Replace AC PCB Ass'y.

Is the connection between

AC and DC OK?

Is the reset circuit OK?(The No.14 ofMicom is 5V.)


• Check the Main PCB pattern.

• Replace the Trans.

• Replace D02D~D05D.• Replace IC01D.

• Replace IC02D.

• Replace IC01A, C02A.

• Connect connector exactly.

• Check the PCB pattern.

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

NO

YES

Possible Trouble 1 The unit does not operate.

Electrical Parts Troubleshooting Guide



Possible Trouble 2 The compressor does not operate.

Possible Trouble 3 The compressor always operate.

Is setting Temp. set lower than Room

Temp.-0.5°C?

Is the voltage No.10of IC01M 0V?

• Replace IC01M.

• Select the setting Temp. to lower Number.

• Wait 3 Minutes.

Does the Unit delay for3 minutes?

• Replace MAIN PCB Ass'y.

Is the voltage N0.9 of IC01M DC 12V?

• Check the RY-COMP.• Check the wiring Diagram.

NO

NO

NO

YES YES

YES

YES

Is the wire connection of RY-COMP OK?

• Check the RY-COMP.

• Connect LEAD Wire to RY-COMP again.

NO

YES

NO

Service Manual 27


Possible Trouble 4 FAN does not operate.

Possible Trouble 5 The function of Energy Saver does not operate.

• Replace IC01M.

• Replace IC01M.

Is the voltage NO.1 or 2 or 4of IC01M DC 12V?

Is the voltage NO.16 or 15 or 13of IC01M 0V?

• Check the RY-Hi orRY-Med or RY-Lo.

• Check the wiring diagram.

NO

NO

YES

YES

NO

NO

YES

YES

Is the mode key pushed once more from

cool mode?

Is the voltage No.3 of CN-AC/DC of AC PCB

Ass'y DC 5V?

• Reference to OWNER'S MANUAL.

• Set the mode key to Energy Saver mode.

• Check the Energy Saver mode key.• Check the pattern of AC & DC PCB.



Possible Trouble 6 Remote controller does not operate.

Possible Trouble 7 It displays abnormally on DC PCB Ass’y.

NO

NO

NO

NO

YES

YES

YES

Is the IC01G good?

Is the connection of CN-AC/DC OK?

• Replace the DC PCB Ass'y.

• Replace IC01G.

• Replace IC03G(Q01G, Q02G, Q03G for Delux Model).

• Connect connector to CN-AC/DC exactly.

Does the IC03G(Q01G, Q02G, Q03G for Delux Model)

operate normally on DC PCB Ass'y?


Is the voltage of Batteryover 2.3V?

• Replace Receiver Ass'y.


Is the voltage No.10 of CN-AC/DC on DC PCB

Ass'y DC 5V?

• Replace the battery.



NO

NO

NO

YES

YES

YES

Service Manual 29



Is the Trans input power AC 115V?(208/230V for LWL1230WAL)

Is the Trans output powerabout AC 14V?

Is the Trans. output shorted?



Is the voltage No.40 of MicomDC 5V?

Replace AC PCB Ass'y.

Is the connection between

AC and DC OK?

Is the reset circuit OK?(The No.14 of Micom is 5V.)


• Check the AC PCB pattern.

• Replace the Trans.

• Replace D02D~D05D.• Replace IC01D.

• Replace IC02D.

• Replace IC01A, C01A.

• Connect connector exactly.


NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

NO

YES

Possible Trouble 1 The unit does not operate.

ElectrIc Parts



Possible Trouble 2 The compressor does not operate.

Possible Trouble 3 The compressor always operate.

Is desired Temp. set lower than Room

Temp.-0.5°C?

Is the voltage No.10of IC01M 0V?

• Replace IC01M.

• Select the desired Temp. to lower Number.

• Wait 3 Minutes.

Is the Unit for 3 minutesdelay?

• Replace AC PCB Ass'y.

Is the voltage N0.9 of IC01M DC 12V?

• Check the RY-COMP.• Check the wiring Diagram.

NO

NO

NO

YES YES

YES

YES

Is the wire connection of RY-COMP OK?

• Check the RY-COMP.

• Connect LEAD Wire to RY-COMP again.

NO

YES

NO

Service Manual 31


Possible Trouble 4 FAN does not operate.

Possible Trouble 5 Remote controller does not operate.

• Replace IC01M.

• Replace IC01M.

Is the voltage NO.1 or 2 or 4of IC01M DC 5V?

Is the voltage NO.16 or 15 or 13of IC01M 0V?

• Check the RY-Hi orRY-Med or RY-Lo.

• Check the wiring diagram.

NO

NO

YES

YES


Is the voltage of Batteryover 2.3V?

• Replace Receiver Ass'y.


Is the voltage No.10of CN-AC/DC on AC PCB

Ass'y DC 5V?

• Replace the battery.



NO

NO

NO

YES

YES

YES



Possible Trouble 6 It displays abnormally on DC PCB Ass’y.

NO

NO

NO

NO

YES

YES

YES

Are the IC01G and IC02Ggood?


• Replace the DC PCB Ass'y.

• Replace IC01G, IC02G.

• Replace IC03G.


Does IC03Goperate normally on AC

PCB Ass'y?

Service Manual 33


COMPLAINT CAUSE REMEDY

Check voltage at outlet. Correct if none.

Check voltage to Control Box. If none, check powersupply cord. Replace cord if circuit is open.

Connect wire. Refer to wiring diagram for terminalidentification. Repair or replace loose terminal.

Test capacitor.Replace if not within ±10% of manufacturer's rating.Replace if shorted, open, or damaged.

Fan blade hitting shroud or blower wheel hittingscroll. Realign assembly.

Units using slinger ring for condenser fan must have1/4 to 5/16 inch clearance to the base. If it hits thebase, shim up the bottom of the fan motor withmounting screw(s).

Check fan motor bearings; if motor shaft will notrotate, replace the motor.

Check voltage. If not within limits, call an electrician.

Test capacitor.Check bearings. Does the fan blade rotate freely?If not, replace fan motor.

Pay attention to any change from high speed tolow speed. If the speed does not change, replace themotor.

If cracked, out of balance, or partially missing,replace it.

If cracked, out of balance, or partially missing,replace it.

Tighten it.

If knocking sounds continue when running or loose,replace the motor. If the motor hums or noiseappears to be internal while running, replace motor.

Check voltage. If not within limits, call an electrician.

Check the wire connections, if loose, repair orreplace the terminal. If wires are off, refer to wiringdiagram for identification, and replace. Check wirelocations. If not per wiring diagram, correct.

No power

Power supply cord

Wire disconnected or con-nection loose

Capacitor (Dischargecapacitor before testing.)

Will not rotate

Revolves on overload.

Fan

Turbo

Loose clamper

Worn bearings

Voltage

Wiring

Fan motor will not run.

Fan motor runs intermittently

Fan motor noise.

Compressor will not run,but fan motor runs.



COMPLAINT CAUSE REMEDY

Check the TEMP control. If not at the lowest number,set TEMP control to this setting and restart the unit. Check the continuity of the thermistor. Replace thethermistor if the circuit is open.

Check the capacitor.Replace if not within ±10% of manufacturers rating.Replace if shorted, open, or damaged.

Check the compressor for open circuit or ground. Ifopen or grounded, replace the compressor.

Check the compressor overload, if externally mount-ed. Replace if open. (If the compressor temperatureis high, remove the overload, cool it, and retest.)

Check the voltage.If not within limits, call an electrician.

Check overload, if externally mounted.Replace if open. (If the compressor temperature ishigh, remove the overload, cool, and retest.)

If not running, determine the cause. Replace ifrequired.

Remove the cabinet. inspect the interior surface ofthe condenser; if restricted, clean carefully with a vac-uum cleaner (do not damage fins) or brush. Clean theinterior base before reassembling.

If condenser fins are closed over a large area on thecoil surface, head pressures will increase, causingthe compressor to overload. Straighten the fins orreplace the coil.

Test capacitor.

Check the terminals. If loose, repair or replace.

Check the system for a restriction.

If restricted, clean of replace.

Close if open.

Determine if the unit is properly sized for the area tobe cooled.

Check the set screw or clamp. If loose or missing,correct. If the turbo or fan is hitting air guide,rearrange the air handling parts.

Remove the cabinet carefully and rearrange tubingnot to contact cabinet, compressor, shroud, and barri-er.

Thermistor

Capacitor (Dischargecapacitor before servicing.)

Compressor

Overload

Voltage

Overload

Fan motor

Condenser air flow restric-tion

Condenser fins (damaged)

Capacitor

Wiring

Refrigerating system

Air filter

Exhaust damper door

Unit undersized

Turbo or fan

Copper tubing

Compressor will not run,but fan motor runs.

Compressor cycles onoverload.



Insufficient cooling or heat-ing

Excessive noise

Service Manual 35

Exploded View

Exploded View

DEFROST

HEAT

COOL

INDOORDESIRED

ENERGYSAVERAIRPURYFIERAUTORESTART

FAN

FAN

DRY

130910

731273

149980

346811359012

W48602

349480

349001

268711-2268711-1

238310

W0CZZ

249950

147581

147582-1

559011

749750

352111

352113

352115-1

567480

137215

W48602

148000

349600354210

267110

159830

130410

550140

35211A

554160

135312

135314

554031

TIMER

MODE

TEMP

POWER

FANSPEED

147582-2

352115-2

˚C

TIMER

POWER

MODE TEMP

FANSPEED

F1 LOWF2 MEDF3 HIGH

DryTimer

Fan

EnergySaver

Cool

749740

264110

552102

36 R oom Air C onditioner

R eplacement Parts Lis t

R eplac ement Parts L is t

130410 BAS E AS S E M BLY , W E LD [S IN G LE ] 3041A20023T 3041A20067B R130910 C ABIN E T AS S E M BLY , S IN G LE 3091AR 6057V 3091AR 6057V R135312 G R ILLE AS S E M BLY , FR O N T(S IN G LE ) 3531A10201A 3531A10201A R135313 G R ILLE , IN LE T 3530A10146A 3530A10146A R135500 C O V E R 3550A20089A 3550A30122A R147581 LO U V E R , H O R IZO N TAL 4758A30022A 4758A30022A R

147582-1 LO U V E R , V E R TIC AL 4758A20042A 4758A20042A R147582-2 LO U V E R , V E R TIC AL 4758A20042B 4758A20042B R148000 BR AC E 4800A20001A 4800A20001A R149980 S H R O U D 4998A10013A 4998A10026A R152302 F ILTE R AS S E M BLY , AIR C LE AN E R 5231A20008A 5231A20008A R237200 P AN E L, C O N TR O L 3720A10112A 3720A10112A R249950 C O N TR O L BO X AS S E M BLY , S IN G LE 4995A26003B 4995A26003A R268712 P W B(P C B) AS S E M BLY , M AIN (AC ) 6871A20617E 6871A20617D R238310 E S C U TC H E O N 3831A10021F 3831A10021F R268714 P W B(P C B) AS S E M BLY , M AIN (D C ) 6871A20604A 6871A20604A R263230 TH E R M IS TO R AS S E M BLY 6323A20012C 6323A20012C R264110 P O W E R C O R D AS S E M BLY 6411A20048U 6411A20048J R346811 M O TO R AS S E M BLY , S IN G LE 4681A23010A 4681A20081A R349001 V E N TILATIO N D AM P E R 4900A20004A 4900A20004A R349480 O R IF IC E 4948A30008A 4948A30008A R349600 M O U N T, M O TO R 4960AR 1596A 4960AR 1596A R352111 TU BE , C AP ILLAR Y BE N D 5211AR 3332Z 5211A30275Z R352113 TU BE AS S E M BLY , D IS C H AR G E S IN G LE 5211A34005A 5211A30066N R

W 52106-1 TU BE , FO R M E D 5210A23358C 5210A21099E RW 52106-2 TU BE , FO R M E D 5210A23358D 5210A21099F R

35211A TU BE AS S E M BLY , S U C TIO N (O U TD O O R ) 5211A20441K 5211A20441L R352390 AIR G U ID E AS S E M BLY 5239A20002A 5239A20002A R354210 E V AP O R ATO R AS S E M BLY , F IR S T 5421A20091F 5421A20091G R550140 AN TI-V IBR ATIO N BU S H 4H 00982C 4H 00982C R554031 C O N D E N S E R AS S E M BLY , F IR S T 5403A20062B 5403A20112B R554160 C O M P R E S S O R S E T 2520U C BK025 2520U C BJ002 R559010 FAN AS S E M BLY , AX IAL 5900AR 1508A 5900AR 1508A R559012 FAN AS S E M BLY , TU R BO 5901A20009A 5901A20009A R267110 R E M O TE C O N TR O LLE R AS S E M BLY 6711A20034G 6711A20034G RW 48602 C LAM P , S P R IN G 3H 02932C 3H 02932C RW 0C ZZ C AP AC ITO R , D R AW IN G 0C ZZA20001L 6120AR 2194F R731373 IN S TALL P AR TS AS S E M BLY 3127AR 3403U 3127AR 3403U R

LW H D 1450E R LW H D 1800R

P A R T N O .D E S C R IP T IO N REM ARKLOCATION

NO.

37R oom Air C onditioner

R eplacement Parts List

R eplac ement Parts L is t

BAS E AS S E M BLY , W E LD [S IN G LE ] RC ABIN E T AS S E M BLY , S IN G LE 3091AR 6057V RG R ILLE AS S E M BLY , FR O N T(S IN G LE ) RG R ILLE , IN LE T R

RLO U V E R , H O R IZO N TAL 4758A30022A RLO U V E R , V E R TIC AL 4758A20042A RLO U V E R , V E R TIC AL 4758A20042B RBR AC E 4800A20001A RS H R O U D 4998A10026A RFILTE R AS S E M BLY , AIR C LE AN E R 5231A20008A RP AN E L, C O N TR O L 3720A10112A RC O N TR O L BO X AS S E M BLY , S IN G LE 4995A26003A RP W B(P C B) AS S E M BLY , M AIN (AC ) 6871A20617D RE S C U TC H E O N 3831A10021F RP W B(P C B) AS S E M BLY , M AIN (D C ) 6871A20604A RTH E R M IS TO R AS S E M BLY 6323A20012C RP O W E R C O R D AS S E M BLY 6411A20048J RM O TO R AS S E M BLY , S IN G LE 4681A20081A RV E N TILATIO N D AM P E R 4900A20004A RO R IF IC E 4948A30008A RM O U N T, M O TO R 4960AR 1596A RTU BE , C AP ILLAR Y BE N D 5211A30275Z RTU BE AS S E M BLY , D IS C H AR G E S IN G LE 5211A30066N RTU BE , FO R M E D 5210A21099E RTU BE , FO R M E D 5210A21099F RTU BE AS S E M BLY , S U C TIO N (O U TD O O R ) 5211A20441L RAIR G U ID E AS S E M BLY 5239A20002A RE V AP O R ATO R AS S E M BLY , F IR S T 5421A20091G RAN TI-V IBR ATIO N BU S H 4H 00982C RC O N D E N S E R AS S E M BLY , F IR S T 5403A20112B RC O M P R E S S O R S E T 2520U C BJ002 RFAN AS S E M BLY , AX IAL 5900AR 1508A R

R E M O TE C O N TR O LLE R AS S E M BLY 6711A20034G RC LAM P , S P R IN G 3H 02932C RC AP AC ITO R , D R AW IN G 6120AR 2194F RIN S TALL P AR TS AS S E M BLY 3127AR 3403U R

L1804R

P A R T N O .D E S C R IP T IO N REM ARKLOCATION

NO.

3041A20023T

3531A20095A3530A10080A

130410130910135312135314

147581147582-1147582-2148000149980

249950268711-2238310268711-1

264110346811349001349480349600352111352113

35211A

354210550140554031554160559011

137215159830

567480

352115-1352115-2

749750

749740 GUIDE 2H00858D

FAN AS S E M BLY , TU R BO 5901A20009A267110W 48602W 0C ZZ731273

359012

552102 TUBE,CAPILLARY 5210A23357A R


Memo

P/No.: 3828A29003AJanuary, 2006

Printed in China

lg room air conditioner service manual – models lwhd 1500er, lwhd 1800r, l1804r

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