LG LC6000Y4, LC8000Y4, LC1000Y4, LC1200Y4, LEA0610ACL Service Manual

LG

Room Air Conditioner

SERVICE MANUAL

LG

CAUTION

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

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

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

MODELS: LC6000, LC8000, LC1000Y3

LC1200Y3, LC6000Y4, LC8000Y4
LC1000Y4, LC1200Y4,
LEA0610ACL, LEA0810ACL, LEA1010ACLY3, LEA1210ACL
LV080CE, LV100CE, LV120CE
HBLG1000CY3, HBLG1004C

2 Room Air Conditioner

Air Conditioner Service Manual

TABLE OF CONTENTS

Preface ........................................................................3

Electronic Type ........................................................3

Mechanical Type......................................................3

Safety Precautions.....................................................4

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

Operation ....................................................................8

Features ..................................................................8

Control Locations ....................................................8

Mechanical type model .......................................8

Electronic type model..........................................9

Disassembly Instructions........................................10

Mechanical Parts...................................................10

Front grille .........................................................10

Cabinet..............................................................10

Control box........................................................10

Air Handling Parts .................................................11

Air guide and turbo fan......................................11

Fan....................................................................11

Shroud ..............................................................12

Electrical Parts ......................................................12

Overload protector ............................................12

Compressor ......................................................12

Capacitor...........................................................13

Power cord ........................................................13

Thermostat........................................................13

Rotary switch ....................................................13

Motor.................................................................14

Refrigerating Cycle................................................14

Condenser ........................................................14

Evaporator.........................................................14

Capillary tube ....................................................15

Installation ................................................................17

How to Install the unit ............................................17

Checking installation..............................................17

How to drain ..........................................................17

Window Requirements ..........................................18

Installation Kits Contents.......................................18

Horizontal Sliding Window Installation...................19

Casement Window Installation ..............................20

Troubleshooting Guide ............................................21

Outside dimensions ..............................................21

Piping system ........................................................21

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

Room Air Conditioner Voltage Limits.....................29

Mechanical type model .....................................29

Electronic type model........................................29

Schematic Diagram.................................................33

Circuit Diagram......................................................33

Electronic Control Device ......................................38

Components Location

(For Main P.C.B ASM)............................................39

Components Location

(For Display P.C.B ASM)........................................39

Exploded View & Replacement Parts List .............40

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. 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 1MΩ.

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

2. The grounding conductor (green) 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 OFF) of the ROTARY SWITCH.

4. The value should be over 1MΩ.

Service Manual 3

Preface

Preface

Electronic Type

Mechanical Type

4 Room Air Conditioner

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must
be 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.

WARNING

■ Installation

Be sure not to do.

Be sure to follow the instruction.

Don’t use a power cord, a plug or
a loose socket which is dam­aged.

• Otherwise, it may cause a fire or

electrical shock.

Always plug into a grounded
outlet.

• Otherwise, it may cause a fire or
electrical shock.

Do not modify or extend the
power cord length.

• It will cause electric shock or fire
due to heat generation.

Do not disassemble or modify
products.

• It may cause failure and electric
shock.

Be caution when unpacking and
installing.

• Sharp edges may cause injury.

Do not use the power cord near flam­mable gas or combustibles such as
gasoline, benzene, thinner, etc.

• It may cause explosion or fire.

Gasolin

Service Manual 5

Safety Precautions

Install the product so that the noise or hot wind
from the outdoor unit may not cause any damage
to the neighbors.

• Otherwise, it may cause dispute with the neighbors.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water leakage.

■ Installation

6 Room Air Conditioner

Product Specifications

Product Specifications

POWER SUPPLY

COOLING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

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

INDOOR (°C)

OUTDOOR (°C)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

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)

115V, 60Hz

6,000 8,000 10,000 12,000

630 840 1,050 1,260

5.8 7.7 9.6 11.5

9.5

26.7(DB)* 19.4(WB)**

35(DB)* 23.9(WB)**

280g(9.9 oz) 300g(10.6 oz) 460g(16.2 oz) 445g (15.7 oz) 530g(18.7 oz) 520g(18.3 oz) 510g(18.0 oz)

2 ROW 16 STACKS, SLIT FIN TYPE 3 ROW 16 STACKS, SLIT FIN TYPE

1 ROW 23 STACKS,

2 ROW 23 STACKS,

SLIT FIN TYPE

LOUVER FIN TYPE

TURBO FAN

AXIAL FAN

2/3

6 POLES

ROTARY SWITCH

THERMOSTAT

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

TOP-DOWN CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

3 WIRE WITH GROUNDING

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE SPLASHED BY FAN SLINGER

57/26 66/30 77/35 79/36

141/2 x 201/2 x 233/5

368 x 521 x 607

LC6000

LEA0610ACL

LC6000Y4

LC8000

LEA0810ACL

LC8000Y4

LC1000Y3

LEA1010ACLY3

HBLG1000CY3

LC1000Y4

LC1200Y3

LEA1210ACL

LC1200Y4

MODELS

ITEMS

OPERATING

CONDITION

FOR
LC6000/LC8000/LC1000Y3/LC1200Y3/LC6000Y4/LC8000Y4/LC1000Y4/LC1200Y4/LEA0610ACL/
LEA0810ACL/LEA1010ACLY3/LEA1210ACL/HBLG1000CY3

* DB:Dry Bulb
**

WB:Wet Bulb

Service Manual 7

Product Specifications

POWER SUPPLY

COOLING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

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

INDOOR (°C)

OUTDOOR (°C)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

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)

115V, 60Hz

8,000 10,000 12,000

840 1,050 1,260

7.7 9.6 11.5

9.5

26.7(DB)* 19.4(WB)**

35(DB)* 23.9(WB)**

300g(10.6 oz) 445g(15.7 oz) 510g(18.0 oz)

2 ROW 16 STACKS, SLIT FIN TYPE

3 ROW 16 STACKS, SLIT FIN TYPE

2 ROW 23 STACKS,

LOUVER FIN TYPE

TURBO FAN

AXIAL FAN

3/3

6 POLES

REMOTE CONTROLLER

THERMISTOR

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

TOP-DOWN CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

3 WIRE WITH GROUNDING

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE SPLASHED BY FAN SLINGER

66/30 77/35 79/36

141/

2 x 20

1

/

2 x 23

3

/

5

368 x 521 x 607

LV080CE

LV100CE

HBLG1004C

LV120CE

MODELS

ITEMS

OPERATING

CONDITION

FOR
LV080CE/LV100CE/LV120CE/HBLG1004C

* DB:Dry Bulb
**

WB:Wet Bulb

• Designed for COOLING ONLY.

• Powerful and whispering cooling.

• Simple installation and service.

• Low air-intake, top cooled-air discharge.

MECHANICAL TYPE MODEL

• 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 OPEN position.
The damper is opened and room air is exhausted.

• TEMP

Thermostat will automatically control the temperature
of the room. Select a higher number for a cooler tem­perature in the room. The temperature is selected by
moving the knob to the desired position.
The 5 or 6 position is a normal setting for average
conditions.

• MODE

- Turns air conditioner off.

- Med speed fan operation without cooling.

- Low speed fan operation without cooling.

- Cooling with high speed fan operation.

- Cooling with med speed fan operation.

- Cooling with low speed fan operation.

Before using the air conditioner
secure the front grille with two screws
enclosed with the owner’s manual.

1. Open the inlet grille downward and remove the
air filter.

2. Fasten the front grille with screws.

3. Reinstall the air filter.

4. Close the inlet grille.

• Built-in adjustable THERMOSTAT or THERMISTOR

• Washable one-touch filter

• Compact size

• Reliable and efficient rotary compressor is equipped.

NOTICE

8 Room Air Conditioner

Operation

Features

Control Locations

VENTCLOSE

OPEN

Inlet Grille

Operation

ELECTRONIC TYPE MODEL

Precaution: The Remote Control unit will not function properly if bright light strikes the sensor window of the air conditioner or

if there are obstacles between the Remote Control unit and the air conditioner.

Service Manual 9

Operation

Power

Temp

Fan Speed

Timer Mode

1

2

4

3

5

°C

Dry

2

6

1

4 5

3

1. POWER

• To turn the air conditioner ON, push this button. To turn the
air conditioner OFF, push the button again.

• This button takes priority over any other button.

• When you first turn it on, the unit is in cool mode, high fan
speed, temperature setting at 22˚C(72˚F).

2. TEMPERATURE SETTING

• Use this button to automatically control the temperature of
the room.
The temperature can be set within a range of 16˚C(60°F) to
30˚C(86°F) by increments of 1˚C(1°F).

3. MODE

- Every time you push this button, it will cycle through the fol­lowing modes: COOL, ENERGY SAVER, FAN and DRY.

- ENERGY SAVER

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

4.

FAN SPEED

• Every time you push this button, it advances the setting as
follows: {High(F3) → Low(F1) → Med(F2) → High(F3)}

5. TIMER

- SHUT-OFF TIME

• You will usually use shut-off time while you sleep.

• With unit running, use Timer to set number of hours until

shut-off.

• For your sleeping comfort, once Time is set, the
Temperature setting will raise 1°C(2°F) after 30 min, and
1°C(2°F) after another 30 min.

• Every time you push Timer button, it advances the Timer
setting as follows: 1 Hour → 2 Hours → etc. → 12 Hours
maximum.

- START TIME

• With unit not running, use timer to set number of hours
before unit starts.

• Every time you push Timer button, it advances the Timer
setting as follows: 1 Hour → 2 Hours → etc. → 12 Hours
maximum.

6. REMOTE CONTROL SENSOR

AUTO RESTART

When power is restored after an electrical power failure, the unit will begin to run at its last setting.

10 Room Air Conditioner

Disassembly Instructions

Disassembly Instructins

FRONT GRILLE

1. Open the inlet grille downward and remove the air
filter.

2. Remove the screws which fasten the front
grille.(See Figure 1)

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.

CABINET

1. After disassembling the FRONT GRILLE, remove
the 6 screws which fasten the cabinet at both
sides.(See Figure 2)

2. Remove the 4 screws which fasten the cabinet at
back.

3. Remove the cabinet.

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

CONTROL BOX

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

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

3. Remove the 1 screw which fasten the power cord.
(See Figure 3)

4. Disconnect the grounding screw from the evapo­rator channel.

5. Remove the 2 screws which fasten the control
box.(See Figure 3)

6. Remove the housing which connects motor wire
in the control box.

7. Remove three leads which connect compressor.

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

9. Raise the control box upward completely.

10. Re-install the components by referring to the
removal procedure, above.
(Refer to the circuit diagram found on pages
29~32 in this manual and on the control box.)

Inlet GrilleInlet Grille

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

Figure 1

Figure 3

Figure 2

Mechanical Parts

Service Manual 11

Disassembly Instructins

AIR GUIDE AND TURBO FAN

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

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

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

4. Remove the 4 screws which fasten the brace.

5. Remove the brace.

6. Remove the 2 screws which fasten the upper air
guide. (See Figure 4)

7. Remove the upper air guide.

8. Remove the 2 screws which fasten the evapora­tor.

9. Move the evaporator forward and pulling it upward
slightly. (See Figure 5)

10. Remove orifice by pulling two taps.

11. Remove the clamp with a hand plier which

secures the turbo fan.

12. Remove the turbo fan. (See Figure 6)

13. Remove the motor. (Refer to section 2.3.7)

14. Remove the 2 screws which fasten the lower air

guide from the base pan.

15. Remove the 2 screws which fasten the motor

mount from the base pan.

16. Remove the 2 screws which fasten the lower air

guide and motor mount.

17. Move the lower air guide backward and pull out

from the base pan. (Move the lower air giude
carefully.)

18. Re-install the components by referring to the

removal procedure, above.

FAN

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

2. Remove the brace (Refer to section 2.2.1)

3. Remove 6 screws which fasten the condenser.

4. Move the condenser to the right carefully.

5. Remove the clamp with a hand plier which secures the

fan.

6. Remove the fan. (See Figure 7)

7. Re-install by referring to the removal procedure.

Figure 4

Figure 5

Figure 6

Figure 7

Air Handling Parts

12 Room Air Conditioner

Disassembly Instructins

SHROUD

1. Remove the fan. (Refer to section 2.2.2)

2. Remove the shroud. (See Figure 8)

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

OVERLOAD PROTECTOR

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

2. Remove the nut which fastens the terminal cover.

3. Remove the terminal cover. (See Figure 9)

4. Remove all the leads from the overload protector.

5. Remove the overload protector.

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

COMPRESSOR

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

2. 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.

3. Remove the overload protector. (Refer to section

2.3.1)

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.

6. Remove the compressor. (See Figure 10)

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

Figure 8

Figure 9

Figure 10

Electrical Parts

Service Manual 13

Disassembly Instructins

CAPACITOR

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

2. Remove the screw and the clamp which fastens the
capacitor.

3. Disconnect all the leads of capacitor terminals.

4. Re-install the components by referring to the
removal procedure, above. (See Figure 11)

POWER CORD

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

2. Disconnect the grounding screw from the control
box.

3. Disconnect the 2 receptacles.

4. Remove a screw which fastens the clip cord.
(See Figure 12)

5. Remove the power cord.

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

7. 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 attached at
the unit.)

THERMOSTAT(For Mechanical Type)

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

2. Remove the 2 screws which fasten the thermostat.

3. Disconnect 2 leads of thermostat terminals.

4. Remove the thermostat.

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

THERMOSTAT(For Electronic Type)

1. Plug out thermistor from the main PCB.

ROTARY SWITCH

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

2. Remove the 2 screws which fasten the rotary
switch.

3. Disconnect all the leads of the rotary switch termi­nals.

4. Remove the rotary switch.

5. Re-install the components by referring to the
above removal procedure. (See Figure 14)

Figure 11

Figure 12

Figure 13

Figure 14

Mechanical Type

Electronic Type

MOTOR

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

2. Remove the turbo fan. (Refer to section 2.2.1)

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

4. Remove the 4 screws which fasten the motor from
the Motor Mount. (See Figure 15)

5. Remove the motor.

6. Re-install the components by referring to the
removal procedure, above.(See Figure 15)

CONDENSER

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

2. Remove the 4 screws which fasten the brace.

3. Remove the 4 screws which fasten the condenser
and shroud. (See Figure 16)

4. Remove the 2 screws which fasten the condenser
and base pan.

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

6. Remove the condenser.

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

EVAPORATOR

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

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

3. Remove the upper air guide. (Refer to section

2.2.1)

4. Remove the 2 screws which fasten the evaporator
from lower air guide.

5. Move the evaporator sideways carefully.
(Refer to section 2.2.1)

6. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.

7. Remove the evaporator.

8. Re-install the components by referring to notes.
(See Figure 17)

14 Room Air Conditioner

Disassembly Instructins

Refrigerating Cycle

Figure 15

Figure 16

Figure 17

Discharge the refrigerant system using a
FreonTMRecovery 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.

CAUTION