DOWNLOAD LG LW-C0961HL Service Manual ↓ Size: 1.03 MB | Pages: 37 in PDF or view online for FREE

1.1 SAFETY PRECAUTIONS

2

1.2 INSULATION RESISTANCE TEST

2

1.3 SPECIFICATIONS

3

1.4 FEATURES

4

1.5 CONTROL LOCATIONS

4

2.1 MECHANICAL PARTS

6

2.1.1 FRONT GRILLE

6

2.1.2 CABINET

6

2.1.3 CONTROL BOX

6

2.2 AIR HANDLING PARTS

7

2.2.1 AIR GUIDE

7

2.2.2 BLOWER

7

2.2.3 FAN

7

2.2.4 SHROUD

8

2.3 ELECTRICAL PARTS

8

2.3.1 OVERLOAD PROTECTOR

8

2.3.2 COMPRESSOR

8

2.3.3 CAPACITOR

9

2.3.4 POWER CORD

9

2.3.5 THERMOSTAT

9

2.3.6 ROTARY SWITCH

9

2.3.7 MOTOR

10

2.3.8 REVERSING VALVE ASSY

10

2.4 REFRIGERATION CYCLE

11

2.4.1 CONDENSER

11

2.4.2 EVAPORATOR

11

2.4.3 CAPILLARY TUBE

11

3.1 SELECT THE BEST LOCATION

14

3.2 WINDOW REQUIREMENTS

14

3.3 INSTALLATION KITS CONTENTS

14

3.4 SUGGESTED TOOL REQUIREMENTS

15

3.4.1 PREPARATION OF CHASSIS

15

3.4.2 CABINET INSTALLATION

15

4.1 OUTSIDE DIMENSIONS

17

4.2 PIPING SYSTEM

18

4.3 TROUBLESHOOTING GUIDE

19

5.1 CIRCUIT DIAGRAM

29

5.2 DEICER P.C.B. ASSY

33

5.3 ELECTRONIC CONTROL DEVICE

34

5.4 COMPONENTS LOCATION OF MAIN P.C.B ASM

35

5.5 COMPONENTS LOCATION OF DISPLAY P.C.B ASM

35

36

37

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. When servicing the unit, set the ROTARY SWITCH

or POWER SWITCH 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 the unit, make an insulation resis-

tance test to protect the customer from being
exposed to shock hazards.

1. Unplug the power cord and connect a jumper

between 2 pins (black and white).

2. The grounding conductor (GN/YL) 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 the positions
(except O/OFF) of the ROTARY SWITCH.

4. The value should be over 1M

Ω

.

Ñ

2

Ñ

* DB : dry bulb

** WB : wet bulb

Ñ

3

Ñ

POWER SUPPLY

CAPACITY

(BTU/h)

INPUT

(W)

COOLING

RUNNING CURRENT (A)

E.E.R

(Btu/w.h)

CAPACITY

(BTU/h)

INPUT

(W)

HEATING

RUNNING CURRENT (A)

E.E.R

(BTU/W.h)

COOLING  

INDOOR

(°C)

OUTDOOR (°C)

HEATING 

INDOOR

(°C)

OUTDOOR (°C)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

FAN, INDOOR

FAN, OUTDOOR

FAN SPEEDS, FAN/COOLING/HEATING

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 

¡¿

H  

¡¿

D)

(mm)

9,000

11,500

10,700/11,000

1,000

1,350

1,255/1,290

4.4

5.7

6.0/5.7

9.0

8.5

8.5

9,000

11,500

10,100/10,500

920

1,150

1,085/1,130

4.0

4.8

5.3/5.0

9.8

10

9.3

27 (DB)*   19.5 (WB)**

26.7 (DB)  19.4 (WB)

35 (DB)    24 (WB)

35 (DB)  23.9 (WB)

21 (DB)    15.5 (WB)

21.1 (DB)  15.5 (WB)

7 (DB)    6 (WB)

8.3 (DB) 6.1 (WB)

740g (26.1Oz)

720g (25.4Oz)

700g (24.7Oz)

2 ROW 13 STACKS, LOUVERED-FIN TYPE

2 ROW 14 STACKS, LOUVERED-FIN TYPE

BLOWER

PROPELLER TYPE FAN WITH SLINGER-RING

1/2/2

2/2/2

1/2/2

2/2/2

1/2/2

6 POLES

ROTARY SWITCH WIRELESS REMOCON ROTARY SWITCH WIRELESS REMOCON

ROTARY SWITCH

THERMOSTAT

THERMISTOR

THERMOSTAT

THERMISTOR

THERMOSTAT

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

SLIDE IN-OUT CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

1.8m (7") (3 WIRE WITH GROUDING)

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PAN OR SPLASHED BY FAN SLINGER

95/43

95/43

99/45

99/45

95/43

23

5

/

8

"

¡¿

14

31

/

32

"

¡¿

21

27

/

32

"

600 

¡¿

380 

¡¿

555

1ø, 220V-240V~,50Hz

1ø, 208/230V~, 60Hz

OPERATING

TEMPERA-

TURE

• Designed for cooling or heating
• Powerful and quiet cooling
• Slide-in and slide-out chassis for the simple

installation and service

• Side air-intake, side cooled-air discharge

The ventilation lever must be 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.

When the unit sets heating operation condition, the
green lamp is lighted.
When the frost settles on the heat exchanger of the
outside, defrosting is made automatically and the
green lamp is unlighted. The until it may hiss and
the fan motor will stop for 1 to 10 minutes.
This should not be regarded as trouble. After
defrosting, the heating operation begins again.

Turn the thermostat control to the desired setting.
The centrol position is a normal setting for average
conditions. You can change this setting, if
necessary, in accordance with your temperature
preference.
The thermostat automatically controls cooling or
heating, but the fan runs continuously whenever
the air conditioner is in operation. If the room is
too warm, turn the thermostat control clockwise. If
the room is too cool, turn the themostat control
counterclockwise.

OFF

(       ) : Turns the air conditioner off.

LOW FAN

(       ) : Permits the low fan speed 

operation without cooling (heating).

FAN

: Permits the MED fan speed 

operation without cooling (heating).

LOW COOL (       ) : Permits cooling with the low

fan speed operation.

HIGH COOL (       ) : Permits cooling with the high 

fan speed operation.

LOW HEAT  (       ) : Permits heating with the low 

fan speed operation.

HIGH HEAT (       ) : Permits heating with the high 

fan speed operation.

• Built in adjustable THERMOSTAT or

THERMISTOR.

• washable one-touch filter.
• Compact size.
• Reliable and efficient rotary compressor is

equipped.

Ñ

4

Ñ

COOLER

(TYPE1)

(TYPE2)

(TYPE3 )

HEATER

THERMOSTAT

OPERATION

THERMOSTAT

OPERATION

WARMER

COOLER

WARMER

HEATER

LOW
FAN

LOW
HEAT

HIGH
HEAT

HIGH
COOL

LOW
COOL

LOW
FAN

COOL

HE

AT

FAN

FAN

OFF

LOW

LOW

HIGH

HIGH

BEFORE RESTARTING
WAIT THREE MINUTES

Ñ

5

Ñ

FAN SPEED

TEMP

POWER

MODE

SLEEP

FAN

COOL

DEFROST

HEAT

ON

ON

OFF

AUTO RESTART

It indicates COOL/HEAT/FAN/DEFROST.

It displays the operating of timer.

When you cannot using Remote
Controller, push this button. 
When you first turn on, High Cool mode
and 19°C are set automatically 
(If Indoor Temp. not less than 21°C),
however High Heat mode and 23°C set
(If Indoor Temp. less than 21°C).

In failure of electricity, if the switch is set to
"ON", the unit runs as previous setting
operation when power returns.

This button can automatically control the
temperature of the room. The temperature
can be set within a range of 16°C to 30°C
by 1°C. 

Everytime you push this button, it is set
as follows.
(High 

➔

Low 

➔

High ...)