LG LWM1836TAS, LWM1836QCG, LWN2131QAG, Y5USC24-6R, WG2400R Service Manual

ROOM AIR CONDITIONER

SERVICE MANUAL

CAUTION

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

- ONLY FOR AUTHORIZED SERVICE

MODELS:

LWM1836TAS, LWM1836QCG, LWN2131QAG, Y5USC24-6R, WG2400R,
LWN2432QAS, LWN2433TCS, WG1800R, M1804R, Y5USC18-6R, LWM1836QAS,
HBLG1800R, HBLG2400R, M2403R, LWC243NSMM0, LWC243NSMM2, HBLG2350E

website http://biz.lgservice.com
e-mail http://www.lgeservice.com/techsup.html

—2—

1. PREFACE

1.1 SAFETY PRECAUTIONS................................................................................................................................3

1.2 INSULATION RESISTANCE TEST.................................................................................................................3

1.3 SPECIFICATIONS...........................................................................................................................................3

1.4 FEATURES .....................................................................................................................................................4

1.5 CONTROL LOCATIONS.................................................................................................................................4

2.

DISASSEMBLY INSTRUCTIONS

2.1 MECHANICAL PARTS....................................................................................................................................5

2.1.1 FRONT GRILLE.....................................................................................................................................5

2.1.2 CABINET................................................................................................................................................5

2.1.3 CONTROL BOX.....................................................................................................................................5

2.2 AIR HANDLING PARTS..................................................................................................................................6

2.2.1 COVER (AT THE TOP)..........................................................................................................................6

2.2.2 BLOWER................................................................................................................................................6

2.2.3 FAN........................................................................................................................................................6

2.2.4 SHROUD................................................................................................................................................7

2.3 ELECTRICAL PARTS .....................................................................................................................................7

2.3.1 MOTOR..................................................................................................................................................7

2.3.2 COMPRESSOR .....................................................................................................................................7

2.3.3 CAPACITOR ..........................................................................................................................................7

2.3.4 POWER CORD......................................................................................................................................8

2.3.5 THERMISTOR........................................................................................................................................8

2.3.6 SYNCHRONOUS MOTOR.....................................................................................................................8

2.4 REFRIGERATION CYCLE..............................................................................................................................9

2.4.1 CONDENSER ........................................................................................................................................9

2.4.2 EVAPORATOR ......................................................................................................................................9

2.4.3 CAPILLARY TUBE.................................................................................................................................9

3.

INSTALLATION

3.1 HOW TO INSTALL THE UNIT.......................................................................................................................12

3.2

HOW TO USE THE REVERSIBLE INLET GRILLE

..................................................................................................................

12

3.3 WINDOW REQUIREMENTS.........................................................................................................................13

3.4 INSTALLATION KITS CONTENTS...............................................................................................................13

3.5 SUGGESTED TOOL REQUIREMENTS.......................................................................................................14

3.6 CABINET INSTALLATION ............................................................................................................................15

4.

TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS...............................................................................................................................17

4.2 PIPING SYSTEM...........................................................................................................................................17

4.3 TROUBLESHOOTING GUIDE......................................................................................................................18

5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM......................................................................................................................................27

5.2 ELECTRONIC CONTROL DEVICE ..............................................................................................................28

5.3

COMPONENTS LOCATION(FOR MAIN P.C.B ASM

).......................................................................................................29

5.4

COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM)

.......................................................................................................29

6. EXPLODED VIEW..................................................................................................................................30

7. REPLACEMENT PARTS LIST........................................................................................................31

CONTENTS

—3—

1.1 SAFETY PRECAUTIONS

1. When servicing, set the POWER of CONTROL
BOARD to Off and unplug the power cord.

2. Observe the original lead dress.
If a short circuit is found, replace all parts which
have been overheated or damaged by the short
circuit.

3. After servicing, make an insulation resistance test to
prevent the customer's exposure to shock
hazards.

1.2

INSULATION RESISTANCE TEST

1. Unplug the power cord and connect a jumper
between 2 pins (black and white).

2. The grounding conductor (green or green and
yellow) is to be open.

3. Measure the resistance value with an ohm meter
between the jumpered lead and each exposed
metallic part on the equipment at all Mode [except
POWER OFF].

4. The value should be over 1 MΩ.

1. PREFACE

This service manual provides various service information, including the mechanical and electrical parts, etc.
This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.3 SPECIFICATIONS

M1804R

WG1800R

HBLG1800R

LWM1836TASL

WN1836QCG

LWM1863QAS

Y5USC18-6R

LWN2131QAG

WG2400R

HBLG2400R

M2403R

LWN2432QAS

Y5USC24-6R
LWC243NSMM0

LWN2433TCS LWC243NSMM2 HBLG2350E

POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
REFRIGERANT CHARGE (g)
OPERATING INDOOR (°C)
TEMPERATURE OUTDOOR (°C)
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL

CONSTRUCTION
PROTECTOR COMPRESSOR

FAN MOTOR

POWER CORD

DRAIN SYSTEM
NET WEIGHT (lbs/kg)
OUTSIDE DIMENSION

(inch)

(W x H x D) (mm)

1Ø, 208/230V, 60Hz

1Ø, 220V, 60Hz 1Ø, 220V, 60Hz

1Ø, 208/230V, 60Hz

1Ø, 220V, 60Hz 1Ø, 208/230V, 60Hz

17,500/18,000 17,500 18,000 21,000 23,500/24,000 24,000 24,000 23,000 23,000/23.500

1,800/1,850 1,840 1,050 2,470 2,760/2,820 2,820 2,420 2,540 2,450/2,500

9.0/8.3 8.5 8.3 10.3 13.7/12.7 12.7/12.9 11.2 11.5 12.2/11.3
710(25.1 OZ) 995(35.1 OZ)/980(34.6 OZ) 880(31 OZ) 985(34.7 OZ)

26.7(DB) 19.4(WB)
35(DB) 23.9(WB)

BLOWER TURBO

PROPELLER TYPE FAN WITH SLINGER-RING

3/3

6 POLES

TOUCH PANEL

THERMISTOR

VERTICAL LOUVER(RIGHT & LEFT)

HORIZONTAL LOUVER(UP & DOWN)

SLIDE IN-OUT CHASSIS

INTERNAL OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

1.6m (3 WIRE WITH GROUNDING)

ATTACHMENT PLUG(CORD-CONNECTED TYPE)

DRAIN PIPE OR SPLASHED BY FAN SLINGER

120/54 143/65

26 x 16

27

/32 x 269/16 26 x 1627/32 x 30

5

/16

660 x 428 x 675 660 x 428 x 770

MODELS

ITEMS

* DB:Dry Bulb

**

WB:Wet Bulb

NOTE : Specifications are subject to minor change without notice for further improvement.

1.4 FEATURES

• Designed for cooling only.

• Powerful and quiet cooling.

• Slide-in and slide-out chassis for the simple installation
and service.

• Reversible inlet grille.

1.5 CONTROL LOCATIONS

• VENTILATION

The ventilation lever must be in the CLOSE position in
order to maintain the best cooling conditions.
When a fresh air is necessary in the room, set the
ventilation lever to the OPEN position.
The damper is opened and room air is exhausted.

NOTE: Before using the ventilation feature, make

the lever, as shown. First, pull down part
to horizontal line with part .

Precaution: The Remote Control unit will not function

properly if strong light strikes the sensor
window of the air conditioner or if there
are obstacles between the Remote
Control unit and the air conditioner.

POWER BUTTON

Operation starts, when this button is pressed and stops
when you press the button again.

OPERATION MODE SELECTION BUTTON

Select Cooling, or Fan or Dehumidification(Dry) mode
with button. (Dry mode is not to all models.)

ON/OFF TIMER BUTTON

Set the time of starting and stopping operation. The
timer is set by 1 hour.

FAN SPEED SELECTOR

Select the fan speed in three steps.

- High [F3] ➔ Low[F1] ➔ Med[F2]➔ High[F3]... .

ROOM TEMPERATURE SETTING BUTTON

Control the room temperature within a range of 60°F to
86°F by 1°F.

ENERGY SAVER

(Available In some models)

The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and
check the room air to determine if cooling is needed.

AUTO SWING

Control the horizontal air direction by air swing system.

• Side air-intake, side cooled-air discharge.

• Built in adjustable THERMISTOR.

• Washable one-touch filter.

• Compact size.

—4—

Part A

Part B

VENTCLOSE OPEN

2

3

1

4

5 7

Power

Temp

Fan Speed

Timer Mode

Energy

Saver

Auto

Swing

1

4

3
6

2
7

5

6

6

AUTO RESTART

In case the power comes on again after a power failure,
the unit runs as previous setting operation.

(Available

in some models)

7

7

—5—

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1. Open the inlet grille upward or downward.

2. Remove the screw which fastens the front grille.

3. Pull the front grille from the right side.

4. Remove the front grille. (See Fig. 1)

5. Re-install the component by referring to the
removal procedure.

NOTE: Mark ∆ of inlet grille means opening direction.

2.1.2 CABINET

1. After disassembling the FRONT GRILLE, remove
the screws which fasten the cabinet at both sides.
Keep these for later use.

2. Remove the two screws which fasten the cabinet
at back. (See Fig. 2)

3. Pull the base pan forward.

2.1.3 CONTROL BOX

1. Remove the front grille. (Refer to section 2.1.1)

2. Pull the base pan forward so that you can remove
the 2 screws which fasten the cover control at the
right side. (See Fig. 3)

3. Remove the 3 screws which fasten the control
box. (See Fig. 3)

4. Discharge the capacitor by placing a 20,000 ohm
resistor across the capacitor terminals.

5. Disconnect two wire housings in the control box.

6. Pull the control box forward completely.

7. Re-install the components by referring to the
removal procedure. (See Fig. 3)
(Refer to the circuit diagram found on page 24 in
this manual and on the control box.)

2. DISASSEMBLY INSTRUCTIONS

— Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord.

Figure 1

Figure 2

Figure 3

—6—

2.2 AIR HANDLING PARTS

2.2.1 COVER (AT THE TOP)

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove 11 screws which fasten the brace and
covers.

4. Remove the covers and the brace. (See Fig. 4)

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

2.2.2 BLOWER

1. Remove the cover. (Refer to section 2.2.1)

2. Remove the 3 screws which fasten the
evaporator at the left side and the top side.
(See Fig. 4)

3. Move the evaporator sideward carefully.

4. Remove the orifice from the air guide carefully.

5. Remove the clamp spring which is clamped to the
boss of blower by hand plier. (See Fig. 5)

6. Pull the blower outward, without touching blades.
(See Fig. 6)

7. Re-install the components by referring to the
removal procedure, above.

2.2.3 FAN

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace and shroud cover.
(Refer to section 2.2.1)

3. Remove the 5 screws which fasten the condenser.

4. Move the condenser sideways carefully.

5. Remove the clamp which secures the fan.

6. Remove the fan. (See Fig. 7)

7. Re-install the components by referring to the
removal procedure, above.

Figure 4 (a) Figure 4 (b)

Figure 5

Figure 6

Figure 7 (a) Figure 7 (b)

—7—

2.2.4 SHROUD

1. Remove the fan. (Refer to section 2.2.3)

2. Remove the 2 screws which fasten the shroud.

3. Remove the shroud. (See Fig. 8)

4. Re-install the component by referring to the
removal procedure, above.

2.3 ELECTRICAL PARTS

2.3.1 MOTOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the cover control and disconnect a wire
housing in control box. (Refer to section 2.1.3)

3. Remove the blower. (Refer to section 2.2.2)

4. Remove the fan. (Refer to section 2.2.3)

5. Remove the 4 screws which fasten the motor.
(See Fig. 9)

6. Remove the motor.

7. Re-install the components by referring to the
removal procedure, above.

2.3.2 COMPRESSOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Discharge the refrigerant by using a Refrigerant
Recovery System.

3. Disconnect the 3 leads from the compressor.

4. After purging the unit completely, unbraze the
suction and discharge tubes at the compressor
connections.

5. Remove the 3 nuts and the 3 washers which
fasten the compressor. (See Fig. 10)

6. Remove the compressor.

7. Re-instill the components by referring to the
removal procedure, above.

2.3.3 CAPACITOR

1. Remove the control box. (Refer to section 2.1.3)

2. Remove the screw which fasten the display panel.

3. Disconnect the 2 leads from the rocker switch and
remove the panel.

4. Remove a screw and unfold the control box.
(See Fig. 11)

5. Remove the screw and the clamp which fastens
the capacitor. (See Fig. 11)

6. Disconnect all the leads of capacitor terminals.

7. Re-install the components by referring to the
removal procedure, above.

Figure 8 (a) Figure 8 (b)

Figure 9

Figure 10

Figure 11

—8—

2.3.4 POWER CORD

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Disconnect the grounding screw from the control
box.

4. Disconnect 2 receptacles.

5. Remove a screw which fastens the clip cord.

6. Pull the power cord. (See Fig. 12)

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

8. If the supply cord of this appliance is damaged, it
must be replaced by the special cord.
(The special cord means the cord which has the
same specification marked on the supply cord
fitted to the unit.)

2.3.5 THERMISTOR

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Disconnect the thermistor terminals from main
P.W.B assembly.

4. Remove the thermistor.

5. Re-install the components by referring to the
removal procedure above. (See Figure 13)

2.3.6 SYNCHRONOUS MOTOR

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove the crankshaft.

4. Disconnect all the leads of the synchronous
motor.

5. Remove the 2 screws which fasten the
synchronous motor. (See Fig. 14)

6. Re-install the components by referring to the
removal procedure, above.

Figure 13

Figure 12

Figure 14

—9—

2.4 REFRIGERATION CYCLE

2.4.1 CONDENSER

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace and the shroud cover.
(Refer to section 2.2.1)

3. Remove the 5 screws which fasten the condenser.

4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the condenser
connections.

5. Remove the condenser.

6. Re-install the components by referring to notes.
(See Fig. 15)

2.4.2 EVAPORATOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the top cover and the brace.
(Refer to section 2.2.1)

3. Discharge the refrigerant completely.

4. Remove the 3 screws which fasten the evaporator
at the left side and the top side.

5. Move the evaporator sideward carefully and then
unbraze the interconnecting tube at the evaporator
connectors.

6. Remove the evaporator.

7. Re-install the components by referring to notes.
(See Fig. 16)

2.4.3 CAPILLARY TUBE

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace. (Refer to section 2.2.1)

3. After discharging the refrigerant completely,
unbraze the interconnecting tube at the capillary
tube.

4. Remove the capillary tube.

5. Re-install the components by referring to notes.

Figure 15 (a)

Figure 15 (b)

Figure 16

Discharge the refrigerant system using Freon

TM

Recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before
venting the Freon

TM

. Leave the valve in place

after servicing the system.

CAUTION

—10—

— Replacement of the refrigeration cycle.

1. When replacing the refrigeration cycle, be sure to
discharge the refrigerant system using a Freon

TM

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

2. After discharging the unit completely, remove the
desired component, and unbrace the pinch-off
tubes.

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

4. Solder the pinch-off tubes with Service valves.

5. Evacuate as follows.

1) Connect the vacuum pump, as illustrated Fig.

17A.

2) Start the vacuum pump, slowly open manifold

valves A and B with two full turns
counterclockwise and leave the valves closed.
The vacuum pump is now pulling through valves
A and B up to valve C by means of the manifold

and entire system.

3) Operate the vacuum pump for 20 to 30 minutes,

until 600 microns of vacuum is obtained. Close
valves A and B, and observe vacuum gauge for
a few minutes. A rise in pressure would
indicate a possible leak or moisture remaining in
the system. With valves A and B closed, stop

the vacuum pump.

4) Remove the hose from the vacuum pump and

place it on the charging cylinder. See Fig. 17B.
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 Fig. 17B.
With valve C open, discharge the hose at the
manifold 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 solder and solder
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.

NOTES

If high vacuum equipment is used, just crack
valves A and B for a few minutes, then open
slowly with the two full turns counterclockwise.
This will keep oil from foaming and being
drawn into the vacuum pump.

CAUTION

—11—

Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool
capable of 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 INSETS

BELOW

MANIFOLD

GAUGE

B

Figure 17A-Pulling Vacuum

Figure 17B-Charging

A

B

EXTERNAL

VACUUM PUMP

A

CHARGING
CYLINDER

LOW

HI

B

C

—12—

3. INSTALLATION

3.1 HOW TO INSTALL THE UNIT

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

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

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

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

5. Install the unit a little obliquely outward not to leak the
condensed 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 floor
level.

7. Stuff the foam between the top of the unit and the wall to
prevent 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
if you need to drain (consult a dealer).
Plastic hose or equivalent may be connected to the drain
tube.

3.2 HOW TO USE THE REVERSIBLE

INLET GRILLE

The grille is designed to clean the filter both upward and
downward.

A. BEFORE ATTACHING THE FRONT

GRILLE TO THE CABINET, IF YOU WANT
TO PULL OUT THE FILTER UPWARD;

1. Open the inlet grille slightly (a).

2. Turn inside out the front grille (a).

3. Disassemble the inlet grille from the front grille with
separating the hinged part by inserting a straight type
screw-driver tip (b).

4. Then, rotate the inlet grille 180 degrees and insert the hooks
into bottom holes of the front grille.

5. Insert the filter and attach the front grille to the cabinet.

B. IF YOU WANT TO PULL OUT THE FILTER

DOWNWARD;

The grille is already designed for that way.

About 1/2"

Over 20"

HEAT

RADIATION

FENCE

AWNING

FOAM

COOLED

AIR

30-60"

Level

1/4 Bubble

(b)

b

(a)

(c)

—13—

3.3 WINDOW REQUIREMENTS

NOTE: All supporting parts should be secured to firm wood,

masonry, or metal.
The models of the specific area don't contain
installation feit.

3.3.1 WINDOW REQUIREMENTS

1. This unit is designed for installation in standard
double hung windows with actual opening widths from
29" to 41".
The top and bottom window sashes must open
sufficiently to allow a clear vertical opening of 18"
from the bottom of the upper sash to the window
stool.

2. The stool offset (height between the stool and sill)
must be less than 1 1/4".

3.4 INSTALLATION KITS CONTENTS

29" to 41"

18" min

Offset
Less

than 1

1

/4"

Sill

Exterior

Interior wall

26" min.

(Without frame curtain)

Stool

Foam-PE
(Adhesive-Backed)

Foam-PE

(Adhesive-Backed)

Type C (5) Type D (2)

Type A (14)

Carriage Bolt (2) Lock Nut (4)

Top retainer bar

Type B (7)

Foam strip

(Plain-Back)

Right frame
curtain

Window locking
bracket

Left frame
curtain

Frame guide(2)

Sill

bracket

(2)

Support bracket(2)

—14—

3.5.1 PREPARATION OF CHASSIS

1. Remove the screws which fasten the cabinet at both sides
and at the back. Keep these two screws which fasten the
cabinet at both sides for later use.

2. Slide the unit out from the cabinet by gripping the base pan
handle and pulling forward while bracing the cabinet.

3. Cut the window sash seal to the proper length. Peel off the
backing and attach the Foam-PE to the underside of the
window sash.

4. Remove the backing from Foam-PE with 3 holes and attach
it to the bottom of the Top retainer bar.

5. Attach the Top retainer bar onto the top of the cabinet with 3
screws (Type A).

6. Insert the Frame guides into the bottom of the cabinet.

7. Insert the Frame Curtain into the Top retainer bar and
Frame guides.

8. Fasten the curtains to the unit with 10 screws (Type A) at
both sides.

SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL

Foam-PE

Top retainer bar

Top retainer bar

Foam-PE

Screw

(Type A)

Screw(Type A)

Frame guide

Shipping screws

Figure 18

Figure 19

Figure 20

Figure 21

3.5 SUGGESTED TOOL REQUIREMENTS

—15—

3.6 CABINET INSTALLATION

1. 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 using
the 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 the
center mark on the bottom front with the center line marked
window stool.

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

CAUTION: Do not drill a hole in the bottom pan. The unit is

designed to operate with approximately 1/2" of
water in bottom pan.

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

NOTE: 1. Do not pull the window sash down so tightly that the

movement of Frame curtain is restricted. Attach the
cabinet to the window stool by driving the screws
(Type B) through the cabinet into window stool.

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

Support
Bracket

Lock nut

Sill
Bracket

Carriage
Bolt
(M-Screw)

Front angle

Window stool

Window sash

Top retainer bar

Cabinet

Foam-PE

Frame curtain

Screw(Type B)

Front Angle

Sash track

Foam-PE

Cabinet
Track hole

Support
Bracket

Carriage bolt
and lock nut

Machine screw (Type D)
and lock nut

Outer edge
of window
sill

Screw(Type B)

Sill bracket

Top
retainer
bar

Figure 22

Figure 23

Figure 24

Figure 25

Figure 26

—16—

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

6. Attach each Frame curtain the window sash by using
screws (Type C). (See Fig. 27)

7. Slide the unit into the cabinet. (See Fig. 28)

CAUTION: For security purpose, reinstall screws (Type

A) at cabinet's sides.

8. Cut the Foam-strip to the proper length and insert
between the upper window sash and the lower
window sash. (See Fig. 29)

9. Attach the Window locking bracket with a screw
(Type C). (See Fig. 30)

10. Attach the front grille to the cabinet by inserting the

tabs on the grille into the tabs on the front of the
cabinet. Push the grille in until it snaps into place.
(See Fig.31)

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

through the front grille. (See Fig. 31)

12. Window installation of room air conditioner is now

completed.

Power Cord

Screw (Type A)

Screw

Window locking
bracket

Foam-Strip

Screw(Type C)

Figure 27

Figure 28

Figure 29

Figure 30

Figure 31

Figure 32

—17—

4. TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS

675(770)

660

428

CAPILLARY TUBE

COMPRESSOR

BLOWER

EVAPORATOR COIL

CONDENSER COIL

FAN

MOTOR

: REFRIGERANT FLOW

4.2 PIPING SYSTEM

Following is a brief description of the important components and their functions in the refrigeration system.
Refer to Fig. 33 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

MOTOR

COMPRESSOR

OIL

(LIQUID REFRIGERANT)

CAPILLARY TUBE

OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH

SUCTION LINE
COOL LOW PRESSURE VAPOR

COOLED
AIR

COMPLETE LIQUID
BOIL OFF POINT

LIQUID
PRESSURE
DROP

ROOM AIR HEAT LOAD

VAPOR INLET

HOT
DISCHARGED
AIR

LIQUID OUTLET

HIGH PRESSURE VAPOR
LIQUID PEFRIGERANT
LOW PRESSURE VAPOR

ROOM AIR CONDITIONER

EVAPORATOR COILS CONDENSER COILS

CYCLE OF REFRIGERATION

Figure 33

—18—

4.3 TROUBLESHOOTING GUIDE

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

Unit runs but poor cooling

Ineffective Cooling

Check of outdoor coil
(heat exchanger) & the fan
operation.

Check gas leakage.

Repair gas leak.

Replacement of unit if the
unit is beyond repair.

Satisfactory operation with
temperature difference of
inlet & outlet air ; 44.6~50°F

Check heat load increase.

Unexpected residue

Overloaded Circuit

Check of inside gas
pressure.

Adjusting of refrigerant
charge

Malfunction of compressor

Replacement of
compressor

Check of cold air circulation
for smooth flow.

Dirty indoor coil
(Heat exchanger)

Malfunction of fan

Clogged of air filter

Obstruction at air outlet

Correct above trouble

Stop of auto air-swing

Check clogging in
refrigeration circuit.

Repair clogging in
refrigeration circuit.

—19—

Fails to Start

Check of circuit breaker
and fuse.

Check of control panel.

Only fan fails to start.

Improper wiring.

Defect of fan motor
capacitor.

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

Replacement of fan motor

Regular but fails to start

Replacement of compressor
(locking of rotor, metal)

Improper thermistor setting

Loose terminal connection.

Improper wiring

Irregular motor resistance ( )

Irregular motor insulation ( )

Replacement of compressor
(Motor damaged)

Drop of power voltage.

Check capacitor.

Replacement.

Only compressor fails to
start.

Defect of compressor
capacitor.

Check of power source.

Check of control switch
setting.

Is the Trans output power the

same as specified?

Is the Trans output power

about AC 14V?

Is shorted the Trans. output?

Is output Voltage of IC01D

DC 12V?

Is output Voltage of IC02D

DC 5V?

Is the voltage No.18 of Micom

DC 5V?

Exchange Main P.W.B Ass'y.

Is the

connection between

Main and Display

all right?

Is the reset circuit all right?

(The No.14 of Micom

is 5V.)

•

Check the Fuse.

•

Check the wiring diagram.

•

Check the Main

P.W.B pattern.

• Exchange the Trans.

•

Exchange D02D~D05D.

• Exchange IC01D.

• Exchange IC02D.

• Exchange IC01A.

• Connect connector

exactly.

• Check the

P.W.B

pattern.

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

NO

YES

ELECTRIC PARTS TROUBLESHOOTING GUIDE:

Possible Trouble 1

• The unit does not operate.

—20—

—21—

Is Temp.

setting set lower than Room

Temp.-0.5°C?

Is the voltage No.10

of IC01M 0V?

• Exchange IC01M.

• Set the Temp. setting to higher Temp.

• Wait 3 Minutes

Is the Unit for 3 minutes

delay?

• Exchange MAIN
P.W.B Ass'y.

Is the voltage N0.7 of

IC01M DC 5V?

• Check the RY-COMP.

• Check the wiring

Diagram.

NO

NO

NO NO

YES

YES

YES

YES

Possible Trouble 2

• The compressor does not operate.

Is the wire connection of

RY-COMP all right?

• Check the RY-COMP.

• Connect LEAD Wire to

RY-COMP again.

NO

YES

Possible Trouble 3

• The compressor always operate.

• Exchange IC01M.

• Exchange IC01M.

Is the voltage NO.1 or 2 or 4

of IC01M DC 5V?

Is the voltage

NO.13 or 15 or 16

of IC01M 0V?

• Check the RY-Hi or
RY-Lo.

•

Check the wiring diagram.

NO

NO

YES

YES

Possible Trouble 4

• Fan does not operate.

—22—

Is the voltage of Battery

about over 2.3V?

•

Exchange Receiver Ass'y.

Is the connection of

CN-DISP1 all right?

Is the voltage No.16

of CN-DISP1 on Main P.W.B

Ass'y DC 5V?

• Exchange the battery.

•

Check the P.W.B pattern.

• Connect connector to
CN-DISP1 exactly.

NO

NO

NO

YES

YES

YES

NO

NO

YES

YES

Is the Knob of SW1

set to left position?

Is the voltage No.1 of

CN-DISP1 of Main PCB

Ass'y DC 5V?

• Reference to
OWNER'S MANUAL.

• Set the Knob of SW1
to left position.

• Check the SW1.

• Check the pattern of

Main & Display PCB.

Possible Trouble 6

• Romote controller does not operate.

Possible Trouble 5

• The function of Energy Saver does not operate.

—23—

NO

NO

NO

NO

YES

YES

YES

Is the IC01G all right?

Is the connection of
CN-DISP1 all right?

• Exchange the display
P.W.B Ass'y.

• Exchange IC01G.

• Exchange Q01G,

Q02G, Q03G, Q04G

• Connect connector
to CN-DISP1 exactly.

Does the Q01G,

Q02G, Q03G Q04G operate normally

on main P.W.B Ass'y?

Possible Trouble 7

• It displays abnormally on Display P.W.B Ass'y.

—24—

ROOM AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING MINIMUM MAXIMUM

208~230 ± 10% 187V 253V

COMPLAINT CAUSE REMEDY

Fan motor will not run. No power Check voltage at outlet. Correct if none.

Power supply cord Check voltage to rotary switch. If none, check

power supply cord. Replace cord if circuit is
open.

Rotary switch Check switch continuity. Refer to wiring diagram

for terminal identification. Replace switch if
defective.

Wire disconnected or Connect wire. Refer to wiring diagram for
connection loose terminal identification. Repair or replace loose

terminal.

Capacitor (Discharge Test capacitor.
capacitor before testing.) Replace if not within ±10% of manufacturer's

rating. Replace if shorted, open, or damaged.

Will not rotate Fan blade hitting shroud or blower wheel hitting

scroll. Re-align assembly.
Units using slinger ring condenser fans must

have 0.22~0.25 inch clearance to the base.
If necessary, shim up the bottom of the fan motor
with mounting screw(s).

Check fan motor bearings; if motor shaft will not
rotate, replace the motor.

Fan motor runs. Revolves on overload Check voltage. See limits on this page.

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 to

low speed. If the speed does not change,
replace the motor.

—25—

COMPLAINT CAUSE REMEDY

Fan motor noise. Fan If cracked, out of balance, or partially missing,

replace it.

Blower If cracked, out of balance, or partially missing,

replace it.
Loose set screw Tighten it.
Worn bearings If knocking sounds continue when running or

loose, replace the motor. If the motor hums or

noise appears to be internal while running,

replace motor.

Compressor will not run, Voltage Check voltage. See the limits on the preceding
fan motor runs. page. If not within limits, call an electrician.

Wiring Check the wire connections; if loose, repair or

replace the terminal. If the wires are discon-

nected, refer to wiring diagram for identification,

and replace the wires. Check the wire connections;

If not according to the wiring diagram, correct

the connections.
Rotary Check for continuity, refer to the wiring diagram

for terminal identification. Replace the switch if

the circuit is open.
Thermistor 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

the thermistor if the circuit is open.

Capacitor (discharge Check the capacitor.
capacitor before Replace if not within ±10% of manufacturer’s
servicing.) rating, replace if shorted, open, or damaged.

Compressor Check the compressor for open circuit or

ground. If open or grounded, replace the

compressor.
Overload

Check the compressor overload if externally mounted.

Replace if open. (If the compressor temperature is

high, remove the overload, cool, and retest.)

Compressor cycles on Voltage Check the voltage. See the limits on the
overload. preceding page. If voltage is not within these limits,

call an electrician.
Overload Check overload, if externally mounted.

Replace if open. (If the compressor temperature

is high, remove the overload, cool, and retest.)

—26—

COMPLAINT CAUSE REMEDY

Compressor cycles on Fan motor If not running, determine the cause. Replace if
overload. required.

Condenser air flow Remove the cabinet, inspect the interior surface
restriction of the condenser. If restricted, clean carefully

with a vacuum cleaner (do not damage fins) or
brush. Clean the interior base before
re-assembling.

Condenser fins If the condenser fins are closed over a large
(damaged) area on the coil surface, head pressures will

increase, causing the compressor to cycle.

Straighten the fins or replace the coil.
Capacitor Test the capacitor.
Wiring Check the terminals. If loose, repair or replace.
Refrigeration system Check the system for a restriction.

Insufficient cooling Air filter If restricted, clean or replace.

Exhaust damper door Close if open.

Unit undersized Determine if the unit is properly sized for the

area to be cooled.

Excessive noise Blower or fan Check the set screw, or clamp. If loose or miss-

ing, correct. If the blower or fan is hitting scroll

or barrier, rearrange the air handling parts.
Copper tubing Remove the cabinet and carefully rearrange the

tubing not to contact the cabinet,

compressor, shroud, and barrier.

Auto air-swing fails. Wiring Check terminals. If loose, repair or replace.

Synchronous motor. Check the synchronous motor for open circuit.

—27—

NO.

1
2
3
4
5
6
7
8
9

DESCRIPTION

POWER CORD

FAN MOTOR

CAPACITOR

COMPRESSOR

MAIN PWB ASSEMBLY

DISPLAY PWB ASSEMBLY

THERMISTOR ASSEMBLY

CONNECTOR

FUSE

1

7

6

8

5

9

2

3

4

1

7

6

8

5

9

2

3

4

WH(BL)

POWER INPUT

BK(BR)

(Ribbed) (Plain)

GN/YL

(GN)

GN/YL(GN)

THERMISTOR

BK BK
BLRDBL

RD

CN-TH1

YL YL

OR(BR) OR(BR)

OR(BR)

SYNC

MOTOR

RY-LO

RY-HI

CN-WORK

CN-SYNC CN-DISP

DISPLAY P.W.B ASM

RY-SYNC

250V/T2A
(115V/T2A)

TRANS

FORMER

ZNR

RY-COMP

MAIN P.W.B ASM

BK

BK

BR
BR

RD
BL BL

OLP

RD

MOTOR

CAPACITOR

F

R

S

COMP.

C

C

H

3854AR2330P
WIRING DIAGRAM

RY-MID

FUSE

RD

BK

PTC

43

WH(BL)

POWER INPUT

BK(BR)

(Ribbed) (Plain)

GN/YL

(GN)

GN/YL(GN)

THERMISTOR

BK BK
BLRDBL

RD

CN-TH

YL YL

OR(BR) OR(BR)

OR(BR)

SYNC

MOTOR

RY-LO

RY-HI

CN-WORK

CN-SYNC CN-DISP

DISPLAY P.W.B ASM

RY-SYNC

250V/T2A
(115V/T2A)

TRANS

FORMER

ZNR

RY-COMP

MAIN P.W.B ASM

BK

BK

BR
BR

ION

H.V.B

RD
BL BL

OLP

RD

MOTOR

CAPACITOR

F

R

S

COMP.

C

C

H

3854AR2330R
WIRING DIAGRAM

RY-MID

FUSE

RD

BK

PTC

43

GN/YL

(GN)

RD

5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM

—28—

NOTE

1. The unit of undefined resistors is

ohm, 1/6W, 5%.

2. The unit of undefined capacitors

is uF.

CN-DISP CN-DISP

Q04G

5V

3.6V

2

S7136

IC01A

1

A101S

Q01G

13

5

Q02G

A101S

Q03G

A101S

15

3

16

2

4

14

D06F

ON/OFF

SW6

SW8

AUTO SWING

D08F

SW4

D04F

MODE

SW5

D05F

TEMP DOWN

SW1

FAN

D01F

SW2

TIMER

D02F

A101S

5V

R03P

7

8

R02P

20K

20K

5

6

R04P

1K

SW7

TEMP UP

D07F

SW3

SAVER

ENERGY

5V

D03F

1

17

1

17

5V

5V

Digit0

aa

gg

e

cc

b

f

b

a

Digit1

b

5

4

COOL

d

3

2

e

f

e

1

7

TIMER

DRY/HEAT

FAN

c

f

DEFROST

dd

C22L

220

5V

10V

8

Vcc

Vout

PKM13EPY

-4002

BZ01E

RECEIVER

GND

88 SEGMENT

+

E/SAVER

g

A/SWING

5

4

13

14

11

7

6

12

A/RESTART

10

9

8

9

8

7

10

11

R02G

R01G

152

161

R04G

220

R06G

R05G

134

116

125

143

R03G

220

220

220

220

220

6

3

15

12

2

16

12V

9

8

107

R07G

220

AIR PURIFIER

10

6

R01A

20K

3

10V

1uF

C02A

+

0.01

C01A

50V

OSC01B

1M

RT8.00MG

12.1K

1%

6.2K

1%

R01H

R02H

R01B

5V

CN-TH1

2

2

1

1

SMW250-02

CAT93C46

EEPROM

2

1

A0

A2

SCL

SDAGND

4

3

A1

5V

Rx

12

Tx

8

9

10

SDA

SCL

11

TEST

15 14 131719 18

VSS
VAref

16

Osc in
Osc out

/Reset

22 21 20

COMP

4WAY

LOW

SYNC

242526

23

Pipe TH
Option1
Option2

Room TH

567

123

SEG-c

SEG-a

SEG-b

4

MICOM

TMP87CH47U

SEG-d

44

SEG-e
SEG-f

434241

SEG-g

VDD

393837

KEY0

40

SLIDE SW

272829

ION

MED

HI

313233

Buzzer

30

Receiver

LED out3

363534

LED out0
LED out1
LED out2

KEY1

HVB

R22H

1%

1%

12.1K

0K

R03H

R21H

12.1K

5V

OR2H

710456

131211

RY-COMP

RY-4WAY

RY-LOW

RY-SYNC

OR1H

2
3

4

4

12V

128

16

15

9

IC01M

ULN2004A

RY-MED

RY-HI

12V

33

CN-SYNC

11

33

11

CN-4WAY

RY-4WAY

RY-SYNC

14

3

MOTOR

4WAY

S/V-

SYNC

PIPE-TH

ROOM-TH

0.001

C01F

10K

R01F

C02F

0.001

R02F

10K

R12F

20K

R02E

20

R01E

1K

5V

R01L

IC01G

ULN2004A

1K

680pF

C01L

I

+

7805

IC02D

O

C05D

220

+

I

O

7812

C02D

C03D

IC01D

12V

C04D

50V

50V

0.01

10V

1000

16V

50V

0.1

0.01

5V

C06D

RY-MED

RY-LOW

RY-HI

CN-RD

CN-BL

CN-BK

0.1/275V

C01J

CN-WOR

R01J

C01D

D04D

+

D05D

4

7

2

1

POWER TRANS

D02D

D03D

35V

1N4004

D02D~D05D

1000

RY-COMP

G4A-1A-E-LG

FUSE

250V/T2A

SVC271D-14A

ZNR01J

120 1/2W

FAN

MOTOR

CAPACITOR

C

FAN

HERM

COMP

MAIN POWER

Digit0 (Scan0)

Digit2 (Scan2)

Digit1 (Scan1)

Digit4 (Scan4)

Digit3 (Scan3)

Vcc

WP

5.2. ELECTOINC CONTROL DEVICE

—29—

5.3. COMPONENTS LOCATION (FOR MAIN P.C.B ASM)

5.4. COMPONENTS LOCATION (FOR DISPLAY P.C.B ASM)

—30—

6. EXPLODED VIEW

152302
135313
135303

147581-1

147581-2

135312

552102

552101

554031

148000

352390

349600

346811

130410

354210

147582

349001

359012

359012

349480

W48602

W48602

559010

731273

267110

149980

550140

554160

352113

35211A

352111

263230

268712

146812

264110

268714

237200

238310

W0CZZ

249950

135510

130910

W52106-2

W52106-1

352115-2

352115-1

—31—

7. REPLACEMENT PARTS LIST

130410 BASE ASSEMBLY, SINGLE 3041A30001H 3041A30001R 3041A30001R 3041A30001R 3041A30001R 3041A30001R R
130910 CABINET ASSEMBLY, SINGLE 3091AR6056B 3091AR6056B 3091AR6056A 3091AR6056B 3091AR6056A 3091AR6056B R
135303 GRILLE, INLET 3530AR1604A 3530A10005A 3530AR1604A 3530A10070A 3530AR1604A 3530A10070A R
135312 GRILLE ASSEMBLY, FRONT(SINGLE) 3531A20005L 3531A20073H 3531A20005C 3531A20073E 3531A20073J 3531A20073F R
135510 COVER ASSEMBLY, CONTROL(SINGLE) 3551A30015A 3551A30015A 3551A30015A 3551A30015A 3551A30015A 3551A30015A R

146812 MOTOR ASSEMBLY, SYNC. 2H01102A 2H01102A 2H01102A 2H01102A 2H01102A 2H01102A R
147581-1 LOUVER, HORIZONTAL 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7264A R
147581-2 LOUVER, HORIZONTAL 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A R

147582 LOUVER, VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R

148000 BRACE 4800AR7271A 4800AR7271A 4800AR7271A 4800AR7271A 4800AR7271A 4800AR7271A R

149980 SHROUD 4998AR1597A 4998AR1602A 4998AR1602A 4998AR1602A 4998AR1602A 4998AR1602A R

152302 FILTER(MECH), A/C 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A R

237200 PANEL, CONTROL 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163B R

238310 ESCUTCHEON 3831A20032B 3831A10002W 3831A20032M 3831A20032B 3831A20032M 3831A20032Z R

249950 CONTROL BOX ASSEMBLY, SINGLE 4995A20100V 4995A20101Z 4995A20101R 4995A20100W 4995A20101R 4995A20215K R

263230 THERMISTOR ASSEMBLY 6323A20003D 6323A20003D 6323A20003D 6323A20003D 6323A20003D 6323A20003D R

264110 POWER CORD ASSEMBLY 2H00677Q 2H00677U 2H00677U 2H00677U 2H00677U 3H03671C R

267110 REMOTE CONTROLLER ASSEMBLY 6711A20034N 6711A20056B 6711A20034S 6711A20034N 6711A20056D 6711A20052B R

268712 PWB(PCB) ASSEMBLY, DISPLAY 6871A20195C 6871A20195C 6871A20195A 6871A20195C 6871A20195A 6871A20195B R

268714 PWB(PCB) ASSEMBLY, MAIN(AC) 6871A20188A 6871A20188A 6871A20188J 6871A20188A 6871A20188J 6871A20196E R

346811 MOTOR ASSEMBLY, AC 4681AR6033M 4681A20043A 4681A20043A 4681A20043A 4681A20043A 4681A20011L R

349001 DAMPER, VENTILATION 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265B R

349480 ORIFICE 4948AR7241A 4948A30006A 4948A30006A 4948A30006A 4948A30006A 4948A20014A R

349600 MOUNT, MOTOR 4960AR1596A 4960A10006A 4960A10006A 4960A10006A 4960A10006A 4960AR2895B R

352111 TUBE ASSEMBLY, CONNECTOR 5211AR7059H 5211AR7059Q 5211AR7059Q 5211AR7059Q 5211AR7059Q 5211AR7059Q R

352113 TUBE ASSEMBLY, DISCHARGE SINGLE 5211A30293A 5211A30325C 5211A30325C 5211A30325C 5211A30325C 5211A30325C R
352115-1 TUBE ASSEMBLY, EVAPORATOR IN - - - - - - R
352115-2 TUBE ASSEMBLY, EVAPORATOR IN - - - - - - R

35211A TUBE ASSEMBLY, SUCTION SINGLE 5211A30292A 5211A10094A 5211A10094A 5211A10094A 5211A10094A 5211A10094B R

352390 AIR GUIDE ASSEMBLY 5239A20001A 5239A20001J 5239A20001J 5239A20001J 5239A20001J 5239A20001R R

354210 EVAPORATOR ASSEMBLY, FIRST 5421A20017G 5421A20017A 5421A20017A 5421A20017A 5421A20017A 5421A20017N R

359012 FAN ASSEMBLY, BLOWER 5834AR1599B 5834AR1599B 5834AR1599B 5834AR1599B 5834AR1599B - R

559012 FAN, TURBO - - - - - 5901A20009A R

550140 ISOLATOR, COMP 5040A30017A 5040A30017B 5040A30017B 5040A30017B 5040A30017B 5040A30017B R

552102 TUBE, CAPILLARY BEND 5211A30296A 5211A30296E 5211A30296E 5211A30296E 5211A30296E 5211A30260S R

554031 CONDENSER ASSEMBLY, BENT 5403A20004T 5403A20032B 5403A20032B 5403A20032D 5403A20032B 5403A20032B R

554160 COMPRESSOR 5416A20013E 5416A20013P 5416A20013P 5416A20013P 5416A20013P 5416A20013P R

559010 FAN ASSEMBLY, AXIAL 5900AR1330A 5900AR1330A 5900AR1330A 5900AR1330A 5900AR1330A 5900AR1330A R

731273 INSTALL PART ASSEMBLY - - 3127AR3403D - 3127AR3403D 3127AR3523H R

W0CZZ CAPACITOR, DRAWING 6120AR2194K 0CZZA20001P 0CZZA20001P 0CZZA20001P 0CZZA20001P 6120AR2359U R

W48602 CLAMP, SPRING 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C R
W52106-1 TUBE, EVAPORATOR 5210A30144B 5210A30144B 5210A30144B 5210A30144B 5210A30144B 5210A30144U R
W52106-2 TUBE, EVAPORATOR 5210A30144A 5210A30144A 5210A30144A 5210A30144A 5210A30144A 5210A30144V R

PART NO.

DESCRIPTION

REMARK

LOCATION

NO.

LWN2131QAG Y5USC24-6R WG2400R LWN2432QAS HBLG2400R LWN2433TCS

R: Service Parts

NOTE) *Please ensure GCSC since these parts may be changed depending upon the buyer's request.

(GCSC WEBSITE http://biz.LGservice.com)

—32—

130410 BASE ASSEMBLY, SINGLE 3041A30002B 3041A30002B 3041A30002B 3041A30002B 3041A30002B 3041A30002B R

130910 CABINET ASSEMBLY, SINGLE 3091AR6057A 3091AR6057B 3091AR6057B 3091AR6057A 3091AR6057B 3091AR6057B R

135303 GRILLE, INLET 3530AR1604A 3530A10005A 3530A10070A 3530AR1604A 3530AR1604A 3530A10070A R

135312 GRILLE ASSEMBLY, FRONT(SINGLE) 3531A20005C 3531A20073H 3531A20073E 3531A20073J 3531A20005C 3531A20073C R

135510 COVER ASSEMBLY, CONTROL(SINGLE) 3551A30015A 3551A30015A 3551A30015A 3551A30015A 3551A30015A 3551A30015A R

146812 MOTOR ASSEMBLY, SYNC. 2H01102A 2H01102A 2H01102A 2H01102A 2H01102A 2H01102A R
147581-1 LOUVER, HORIZONTAL 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7278A 4758AR7264A R
147581-2 LOUVER, HORIZONTAL 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7264A 4758AR7278A R

147582 LOUVER, VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R

148000 BRACE 4800AR7272A 4800AR7272A 4800AR7272A 4800AR7272A 4800AR7272A 4800AR7272A R

149980 SHROUD 4998AR1597A 4998AR1597A 4998AR1597A 4998AR1597A 4998AR1597A 4998AR1597A R

152302 FILTER(MECH), A/C 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A R

237200 PANEL, CONTROL 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163B R

238310 ESCUTCHEON 3831A20032M 3831A10002W 3831A20032B 3831A20032M 3831A10002L 3831A20032Z R

249950 CONTROL BOX ASSEMBLY, SINGLE 4995A20100X 4995A20101Y 4995A20100Y 4995A20100X 4995A20045N 4995A20045S R

263230 THERMISTOR ASSEMBLY 6323A20003D 6323A20003D 6323A20003D 6323A20003D 6323A20003D 6323A20003D R

264110 POWER CORD ASSEMBLY 2H00677Q 2H00677Q 2H00677Q 2H00677Q 3H03671A 3H03671A R

267110 REMOTE CONTROLLER ASSEMBLY 6711A20034S 6711A20056B 6711A20034N 6711A20056D 6711A20056Q 6711A20052B R

268712 PWB(PCB) ASSEMBLY, DISPLAY 6871A20195A 6871A20195C 6871A20195C 6871A20195A 6871A20195C 6871A20195B R

268714 PWB(PCB) ASSEMBLY, MAIN(AC) 6871A20188J 6871A20188A 6871A20188A 6871A20188J 6871A20188A 6871A20196E R

346811 MOTOR ASSEMBLY, AC 4681AR6033K 4681AR6033K 4681AR6033K 4681AR6033K 4681AR6033K 4681AR6033K R

349001 DAMPER, VENTILATION 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A R

349480 ORIFICE 4948A30006A 4948A30006A 4948A30006A 4948A30006A 4948A30006A 4948A30006A R

349600 MOUNT, MOTOR 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A 4960AR1596A R

352111 TUBE ASSEMBLY, CONNECTOR 5211AR7059A 5211AR7059A 5211AR7059A 5211AR7059A 5211AR7059A 5211AR7059A R

352113 TUBE ASSEMBLY, DISCHARGE SINGLE 5211A30066K 5211A30066K 5211A30066K 5211A30066A 5211A30066A 5211A30066A R
352115-1 TUBE ASSEMBLY, EVAPORATOR IN 5211A20433B 5211A20433B 5211A20433B 5211A20433B 5211A20433B 5211A20433B R
352115-2 TUBE ASSEMBLY, EVAPORATOR IN 5211A20434B 5211A20434B 5211A20434B 5211A20434B 5211A20434B 5211A20434B R

35211A TUBE ASSEMBLY, SUCTION SINGLE 5211A20204C 5211A20204C 5211A20204C 5211A20204C 5211A20204C 5211A20204C R

352390 AIR GUIDE ASSEMBLY 5239A20001J 5239A20001J 5239A20001J 5239A20001J 5239A20001J 5239A20001J R

354210 EVAPORATOR ASSEMBLY, FIRST 5421A20059F 5421A20059F 5421A20059F 5421A20059F 5421A20059F 5421A20059F R

359012 FAN ASSEMBLY, BLOWER 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1599A 5834AR1599A R

559012 FAN, TURBO - - - - - - R

550140 ISOLATOR, COMP 4H00982C 4H00982C 4H00982C 4H00982C 4H00982C 4H00982C R

552102 TUBE, CAPILLARY BEND 5211A20020P 5211A20020P 5211A20020P 5211A20020P 5211A20020P 5211A20020P R

554031 CONDENSER ASSEMBLY, BENT 5403A20004F 5403A20004F 5403A20004K 5403A20004F 5403A20004F 5403A20004K R

554160 COMPRESSOR 5416A20003J 5416A20003J 5416A20003J 2520UMNK2BA 2520UMNK2BA 2520UMNK2BA R

559010 FAN ASSEMBLY, AXIAL 5900AR1508A 5900AR1508A 5900AR1508A 5900AR1508A 5900AR1508A 5900AR1508A R

731270 INSTALL PART ASSEMBLY, SET - - - - 3127AR3523F 3127AR3523F

731273 INSTALL PART ASSEMBLY 3127AR3403D - - 3127AR3403D - - R

W0CZZ CAPACITOR, DRAWING 6120AR2194D 6120AR2194D 6120AR2194D 6120AR2194D 6120AR2194D 6120AR2194D R

W48602 CLAMP, SPRING 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C 3H02932C R
W52106-1 TUBE, EVAPORATOR - - - - - 5210A21083A R
W52106-2 TUBE, EVAPORATOR - - - - - 5210A21090A R

PART NO.

DESCRIPTION

REMARK

LOCATION

NO.

WG1800R / M1804R

Y5USC18-6R WM1836QAS HBLG1800R LWM1836QCG LWM1836TAS

R: Service Parts

NOTE) *Please ensure GCSC since these parts may be changed depending upon the buyer's request.

(GCSC WEBSITE http://biz.LGservice.com)

—33—

130410 BASE ASSEMBLY,SINGLE 3041A30001R 3041A30001R 3041A10010F 3041A10010F R

130910 CABINET ASSEMBLY,SINGLE 3091AR6056A 3091AR6056B 3091AR6056B 3091AR6056A R

135313 GRILLE,INLET 3530AR1604A 3530A10070A 3530A10070A 3530AR1604A R

135312 GRILLE ASSEMBLY,FRONT(SINGLE) 3531A20005C 3531A20073E 3531A20073E 3531A20073J R

135510 COVER ASSEMBLY,CONTROL(SINGLE) 3551A30015A 3551A30015A 3551A30015A 3551A30015A R

146812 MOTOR ASSEMBLY,SYNC. 2H01102A 2H01102A 2H01102A 2H01102A R

147581-1 LOUVER,HORIZONTAL 4758AR7264A 4758AR7264A 4758AR7264A 4758AR7264A R
147581-2 LOUVER,HORIZONTAL 4758AR7278A 4758AR7278A 4758AR7278A 4758AR7278A R

147582 LOUVER,VERTICAL 4758AR6157A 4758AR6157A 4758AR6157A 4758AR6157A R

148000 BRACE 4800AR7271A 4800AR7271A 4800AR7271A 4800AR7271A R

149980 SHROUD 4998AR1602A 4998AR1602A 4998AR1602A 4998AR1602A R

152302 FILTER ASSY,A/C 5231AR6159A 5231AR6159A 5231AR6159A 5231AR6159A R

237200 PANEL,CONTROL 3720AR6163A 3720AR6163A 3720AR6163A 3720AR6163A R

238310 ESCUTCHEON 3831A20032M 3831A20032B 3831A20060A 3831A20032M R

249950 CONTROL BOX ASSEMBLY,SINGLE 4995A20101R 4995A20100W 4995A20254N 4995A20286A R

263230 THERMISTOR ASSEMBLY 6323A20003D 6323A20003D 6323A20003D 6323A20003D R

264110 POWER CORD ASSEMBLY 2H00677U 2H00677U 6410A20007A 2H00677U R

267110 REMOTE CONTROLLER ASSEMBLY 6711A20034S 6711A20056M 6711A20052G 6711A20056D R

268712 PWB(PCB) ASSEMBLY,DISPLAY 6871A20195A 6871A20195C 6871A20195C 6871A20195A R

268714 PWB(PCB) ASSEMBLY,MAIN(AC) 6871A20188J 6871A20188A 6871A20188A 6871A20188J R

346811 MOTOR ASSEMBLY,AC 4681A20043A 4681A20043A 4681A20011L 4681A20011L R

349001 DAMPER,VENTILATION 4900AR7265A 4900AR7265A 4900AR7265A 4900AR7265A R

349480 ORIFICE 4948A30006A 4948A30006A 4948A20014A 4948A20014A R

349600 MOUNT,MOTOR 4960A10006A 4960A10006A 4960AR2895B 4960AR2895B R

352111 TUBE ASSEMBLY,CONNECTOR 5211AR7059Q 5211AR7059X 5211A10067F - R

352113 TUBE ASSEMBLY,DISCHARGE SINGLE 5211A30325C 5211A30325C 5211A30325D 5211A30325D R

35211A TUBE ASSEMBLY,SUCTION SINGLE 5211A10094A 5211A10094A 5211A10094B 5211A10094B R

352390 AIR GUIDE ASSEMBLY 5239A20001J 5239A20001J 5239A20001S 5239A20001S R

354210 EVAPORATOR ASSEMBLY,FIRST 5421A20017A 5421A20017A 5421A20017N 5421A20017N R

359012 FAN ASSEMBLY,BLOWER 5834AR1599B 5834AR1599B 5901A20009A 5901A20009A R

550140 ISOLATOR,COMP 5040A30017B 5040A30017B - - R

552101 TUBE,CAPILLARY 5210AR3147X 5210AR3147X 5425AR3147X 5425AR3147X R

554031 CONDENSER ASSEMBLY,BENT 5403A20032B 5403A20032D 5403A20032H 5403A20032F R

554160 COMPRESSOR 5416A20013P 5416A20013P 2520UHFK2CA 2520UHFK2CA R

559010 FAN ASSEMBLY,AXIAL 5900AR1330A 5900AR1330A 5900AR1330B 5900AR1330B R

731273 INSTALL PART ASSEMBLY,SINGLE 3127AR3403D - 3127AR3523H 3127AR3403D R

W0CZZ CAPACITOR,DRAWING 0CZZA20001P 0CZZA20001P 6120AR2194P 6120AR2194P R

W48602 CLAMP,SPRING 3H02932C 3H02932C 3H02932C 3H02932C R
W52106-1 TUBE,EVAPORATOR 5210A30144A 5210A30144A 5210A30144U 5210A30144U R
W52106-2 TUBE,EVAPORATOR 5210A30144B 5210A30144B 5210A30144V 5210A30144V R

PART NO.

DESCRIPTION

REMARK

LOCATION

NO.

M2403R LWC243NSMM0 LWC243NSMM2 HBLG2350E

R: Service Parts

NOTE) *Please ensure GCSC since these parts may be changed depending upon the buyer's request.

(GCSC WEBSITE http://biz.LGservice.com)

—34—

MEMO

P/No.: 3828A20095H

September, 2006

Printed in Korea