LG LWHD8000RY6, LWHD1000R, LWHD8000RY5, LWHD8000R Service Manual
LG
Room
Air Conditioner
SERVICE MANUAL
LG
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODEL: LWHD8000R,LWHD8000RY5,LWHD1000R,LWHD8000RY6
2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions..........................................................................................................................................3
Dimensions .....................................................................................................................................................6
Outside Dimensions...................................................................................................................................6
Product Specifications ..................................................................................................................................7
Installation .......................................................................................................................................................8
Select the Best Location ............................................................................................................................8
Installation Check.......................................................................................................................................8
How to Secure the Drain Pipe....................................................................................................................8
How to Install..............................................................................................................................................9
Operation ......................................................................................................................................................12
Function of Controls.................................................................................................................................12
Disassembly..................................................................................................................................................13
Mechanical Parts......................................................................................................................................13
Air handling Parts.....................................................................................................................................14
Electrical Parts .........................................................................................................................................15
Refrigerating Cycle...................................................................................................................................17
Schematic Diagram.......................................................................................................................................20
Electronic Control Device.........................................................................................................................20
Wiring Diagram.........................................................................................................................................21
Components Location ..............................................................................................................................22
Troubleshooting Guide.................................................................................................................................23
Pipeing System ........................................................................................................................................23
Trou
bleshooting Guide .............................................................................................................................24
Electrical Parts Troubleshooting Guide ....................................................................................................26
Electrical Parts .........................................................................................................................................30
Exploded View ..............................................................................................................................................36
Replacement Parts List ................................................................................................................................37
Service Manual 3
Safety Precautions
Safety Precautions
WARNING
CAUTION
WARNING
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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property only.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Always install the expansion panel(s).
• Improper assembly or installation may cause
incorrect operation, including injury, fire, and
electric shock hazards.
Do not use the power cord near flammable
gas or combustibles such as gasoline,
benzene, thinner, etc.
• It may cause explosion or fire.
Do not place the power cord near a heater.
• It may cause fire and electric shock.
Do not disassemble or modify products.
• It may cause electric shock and failure.
n
Gasoli
4 Room Air Conditioner
Safety Precautions
Plug in the power plug
properly.
• Otherwise, it will cause
electric shock or fire.
Do not modify power cord
length.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electric shock or
fire.
ON
ON
Use the air conditioner on a
single outlet circuit.
Do not share the outlet with
other appliances.
Do not damage or use an
unspecified power cord.
• It will cause electric shock or
fire.
Always plug into a
grounded outlet.
• It will cause electric shock or
fire.
Do not use the socket if it is
loose or damaged.
• It may cause fire and electric
shock.
• It will cause electric shock or
fire.
Do not operate with wet
hands or in damp
environment.
• It may cause electric shock.
• No grounding may cause
electric shock.
Ventilate before operating air
conditioner when gas goes
out.
• It may cause explosion, fire,
and burn.
Service Manual 5
If water enters the product, turn off the the power
switch of the main body of appliance. Contact service center after taking the power-plug out from
the socket.
• It will cause electric shock or failure of machine.
Do not clean the air conditioner with water.
• Water may enter the unit and degrade the insulation. It may cause an electric shock.
Never touch the metal parts of the unit when
removing the filter.
• They are sharp and may cause injury.
Do not block the inlet or outlet.
• It may cause failure of appliance or performance
deteriorate.
Ensure that the outer case is not damaged by
age or wear.
• If the outer case is damaged, it must be repaired
or replaced immediately.
Leaving it damaged could result in the air conditioner falling out of the window, creating a safety
hazard.
Be cautious not to touch the sharp edges
when installing.
• It may cause injury.
CAUTION
Safety Precautions
Sharp
edges
6 Room Air Conditioner
Dimensions
Dimensions
Outside Dimensions
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Symbols Used in this Manual
492 (19 3/8")
/16")
3
27.5 (1
30 (1
315 (12 3/8")
12
")
1/16
(0.4
243.3(9
9/16
22.5(0.8
")
492 (19 3/8")
42 (1 21/32")
100.3 (3
3
/32")
3/32
15
16
497 (19 9/16")
")/
Cool
Energy
Saver
Fan
Dry Timer
F1 LOW
F2 MED
F3 HIGH
TEMP
FAN
TIMER POWERMODE
SPEED
42 (1 21/32")
'
F
")
32
/
21
347 (13
")
497 (19 9/16")
'
Cool
F
F1 LOW
F2 MED
F3 HIGH
Energy
Saver
Fan
TEMP
Dry Timer
FAN
TIMER POWERMODE
SPEED
315 (12 3/8")
Specfications
Product Specifications
Service Manual 7
ITEMS
ITEMSITEMS
ITEMS
POWER SUPPLY
POWER SUPPLYPOWER SUPPLY
POWER SUPPLY
MODELS
MODELSMODELS
MODELS
LWHD8000R
LWHD8000RY5
LWHD8000RY6
1ø, 115V, 60Hz
1ø, 115V, 60Hz1ø, 115V, 60Hz
1ø, 115V, 60Hz
LWHD1000R
CAPACITY
CAPACITY
INPUT
INPUT
COOLING
COOLINGCOOLING
COOLING
OPERATING
OPERATINGOPERATING
OPERATING
CONDITION
CONDITIONCONDITION
CONDITION
REFRIGERANT (R-22) CHARGE
REFRIGERANT (R-22) CHARGEREFRIGERANT (R-22) CHARGE
REFRIGERANT (R-22) CHARGE
EVAPORATOR
EVAPORATOREVAPORATOR
EVAPORATOR
CONDENSER
CONDENSERCONDENSER
CONDENSER
FAN, INDOOR
FAN, INDOORFAN, INDOOR
FAN, INDOOR
FAN, OUTDOOR
FAN, OUTDOORFAN, OUTDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING/HEATING
FAN SPEEDS, FAN/COOLING/HEATINGFAN SPEEDS, FAN/COOLING/HEATING
FAN SPEEDS, FAN/COOLING/HEATING
FAN MOTOR
FAN MOTORFAN MOTOR
FAN MOTOR
OPERATION CONTROL
OPERATION CONTROLOPERATION CONTROL
OPERATION CONTROL
ROOM TEMP. CONTROL
ROOM TEMP. CONTROLROOM TEMP. CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
AIR DIRECTION CONTROLAIR DIRECTION CONTROL
AIR DIRECTION CONTROL
RUNNING CURRENT
RUNNING CURRENT
E.E.R
E.E.R
INDOOR (
INDOOR (
OUTDOOR (
OUTDOOR (
C)INDOOR (INDOOR (
C)C)
C)
(BTU/h)CAPACITYCAPACITY
(BTU/h)(BTU/h)
(BTU/h)
(BTU/W.h)E.E.RE.E.R
(BTU/W.h)(BTU/W.h)
(BTU/W.h)
C)OUTDOOR (OUTDOOR (
C)C)
C)
(W)INPUTINPUT
(W)(W)
(W)
(A)RUNNING CURRENTRUNNING CURRENT
(A)(A)
(A)
8,000
820
820820
7.3
7.37.3 9.4
9.8
9.89.8 9.8
26.7(DB)* 19.4(WB)**
26.7(DB)* 19.4(WB)**26.7(DB)* 19.4(WB)**
26.7(DB)* 19.4(WB)**
35(DB)* 23.9(WB)**
35(DB)* 23.9(WB)**35(DB)* 23.9(WB)**
35(DB)* 23.9(WB)**
(13.1 oz)
2 ROW 11 STACKS, LOUVER-FIN TYPE
2 ROW 11 STACKS, LOUVER-FIN TYPE2 ROW 11 STACKS, LOUVER-FIN TYPE
2 ROW 11 STACKS, LOUVER-FIN TYPE
2 ROW 15 STACKS, STRAGHT TYPE
2 ROW 15 STACKS, STRAGHT TYPE2 ROW 15 STACKS, STRAGHT TYPE
2 ROW 15 STACKS, STRAGHT TYPE
PROPELLER TYPE FAN WITH SLINGER RING
PROPELLER TYPE FAN WITH SLINGER RINGPROPELLER TYPE FAN WITH SLINGER RING
PROPELLER TYPE FAN WITH SLINGER RING
REMOTE CONTROLLER
REMOTE CONTROLLERREMOTE CONTROLLER
REMOTE CONTROLLER
VERTICAL LOUVER (RIGHT & LEFT)
VERTICAL LOUVER (RIGHT & LEFT)VERTICAL LOUVER (RIGHT & LEFT)
VERTICAL LOUVER (RIGHT & LEFT)
HORIZONTAL LOUVER (UP & DOWN)
HORIZONTAL LOUVER (UP & DOWN)HORIZONTAL LOUVER (UP & DOWN)
HORIZONTAL LOUVER (UP & DOWN)
8,0008,0008,000 10,0008,0008,000
8,000
820820820
820
7.3
7.37.3
7.3
9.89.8
9.89.89.89.89.89.8
TURBO FAN
TURBO FANTURBO FAN
TURBO FAN
3/3
3/33/3
3/3
6 POLES
6 POLES6 POLES
6 POLES
THERMISTOR
THERMISTORTHERMISTOR
THERMISTOR
480g(16.9 oz)420g(14.8 oz)
480g(16.9 oz)480g(16.9 oz)370g
480g(16.9 oz)
10,00010,0008,000
10,000
1,020
1,0201,020820
1,020
9.49.47.3
9.4
9.89.89.8
9.8
CONSTRUCTION
CONSTRUCTIONCONSTRUCTION
CONSTRUCTION
COMPRESSOR
COMPRESSORCOMPRESSOR
COMPRESSOR
PROTECTOR
PROTECTORPROTECTOR
PROTECTOR
POWER CORD
POWER CORDPOWER CORD
POWER CORD
DRAIN SYSTEM
DRAIN SYSTEMDRAIN SYSTEM
DRAIN SYSTEM
NET WEIGHT
NET WEIGHT
OUTSIDE DIMENSION (inch)
OUTSIDE DIMENSION (inch)OUTSIDE DIMENSION (inch)
OUTSIDE DIMENSION (inch)
(W x
H(W x(W x
xHH
D) x x(W x (mm)D) D) H (mm)(mm) x
D)
* D
B* D* D
: dry bulbBB
: dry bulb : dry bulb* D
B : dry bulb
** WB : wet bulb
** WB : wet bulb** WB : wet bulb
** WB : wet bulb
FAN MOTOR
FAN MOTORFAN MOTOR
FAN MOTOR
(lbs/kg)NET WEIGHTNET WEIGHT
(lbs/kg)(lbs/kg)
(lbs/kg)
(mm)
TOP DOWN CHASSIS
TOP DOWN CHASSISTOP DOWN CHASSIS
TOP DOWN CHASSIS
OVERLOAD PROTECTOR
OVERLOAD PROTECTOROVERLOAD PROTECTOR
OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
INTERNAL THERMAL PROTECTORINTERNAL THERMAL PROTECTOR
INTERNAL THERMAL PROTECTOR
3 WIRE WITH GROUDING
3 WIRE WITH GROUDING3 WIRE WITH GROUDING
3 WIRE WITH GROUDING
ATTACHMENT PLUG (CORD-CONNECTED TYPE)
ATTACHMENT PLUG (CORD-CONNECTED TYPE)ATTACHMENT PLUG (CORD-CONNECTED TYPE)
ATTACHMENT PLUG (CORD-CONNECTED TYPE)
DRAIN PIPE OR SPLASHED BY FAN SLINGER
DRAIN PIPE OR SPLASHED BY FAN SLINGERDRAIN PIPE OR SPLASHED BY FAN SLINGER
DRAIN PIPE OR SPLASHED BY FAN SLINGER
62/28 71/3271/32
62/2862/28 62/28
62/28
19
19 19
19
62/28
9
99
9 3
/
//
497 x 315 x 492
497 x 315 x 492497 x 315 x 492
497 x 315 x 492
33
3 3
16
x 12
1616
x 12x 12/ /
16 8
//x 12 x 19
88
x 19x 19/ /
8 8
33
3
//x 19
88
/
8
71/3262/2862/28
71/32
8 Room Air Conditioner
Installation
Installation
Select the Best Location
Installation Check
How to Secure the Drain Pipe
1. To prevent vibration and noise, make sure the unit is installed
securely and firmly.
2. Install the unit where the sun does not shine directly on the
unit.
3. The outside of the cabinet must extend outward for at least
12" and there should be no obstacles, such as a fence or
wall, within 20" from the back of the cabinet because it will
prevent heat radiation of the condenser.
Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner.
CAUTION: All side louvers of the cabinet must
remain exposed on the outdside of the structure.
4. Install the unit slanted slightly so the back is slightly lower
than the front (about 1/
4"). This will force condensed water
to the outside.
5. Install the unit with the bottom about 30"~60" above the
floor level.
The setting conditions must be checked prior to initial starting.
The following items are especially important checking 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 drain the water, remove the Drain Cap and secure
the Drain Pipe to the rear hole of the Base Pan. (Figure. 2)
Figure 2
COOLED AIR
INSIDE
OUTSIDE
FENCE
AWNING
HEAT
RADIATION
ABOUT / "
30"-60"
1
4
Over 20"
Figure 1
Drain Pipe
Drain Cap
Service Manual 9
Installation
How to Install
Window Requirements
All supporting parts should be secured to
firm wood, masonry, or metal.
1. This unit is designed for installation in standard double
hung windows with actual opening widths of 22" to 36".
The upper and lower sash must open sufficiently to allow
a clear vertical opening of 13" from the bottom of the
sash to the window stool.
2. If storm window presents interference, fasten a 2" wide
wood strip to the inner window sill across the full width of
the sill. The wood strip should be thick enough to raise
the height of the window sill so that the unit can be
installed without interference by the storm window
frame. See Figure. 4. Top of wood strip should be
approximately 3/4" higher than the storm window frame
(STORM WINDOW FRAME) or wood strip (OUTDOORS) to help condensation to drain properly to the
outside.
3.
Install a second wood strip (approximately 6" long by 11/2"
wide and same thickness as first strip) in the center of the
outer sill flush against the back off the inner sill. This will
raise the L bracket as shown Figure. 4.
4. If the distance between STORM WINDOW FRAME and
WOOD STRIP MOUNTED ON TOP OF INNER SILL is
more than 1", two of wood strip are not necessary.
Installation
NOTICE
OUTDOORSINDOORS
INNER
SILL
OUTER
SILL
INNER
SILL
WOOD STRIP MOUNTED
ON TOP OF INNER SILL
WOOD STRIP
FOR
L
BRACKET
3/4"
CLEARANCE
1" MAX.
STORM
WINDOW
FRAME
OUTDOORSINDOORS
OUTER
SILL
Figure 3
Figure 4
HARDWARE
TYPE E: 1EA
(SASH SEAL)
(Not adhesive backed)
TYPE D: 1EA
(SEAL STRIP)
(Adhesive backed)
TYPE F: 2EA
(GUIDE PANEL)
TYPE C: 3EA
(L BACKET)
TYPE A: 11EA
(SHORT SCREW)
10mm
TYPE B: 5EA
(WOOD SCREW)
16mm
TYPE G: 1EA
(SUPPORT BACKET)
DRAIN PIPE
10 Room Air Conditioner
Installation
BEFORE INSTALLATION
1. Insert the guide panels into the guides of the air conditioner.
Fasten the curtains to the unit with screws (TYPE A) as
shown Figure. 5.
2.
Cut the adhesive-backed seal strip (TYPE D) to the window
width.
Remove the backing from the seal strip and attach the seal
strip to the underside of the bottom window. (
Figure
. 6)
NOW START INSTALLATION
1. LOCATING UNIT IN WINDOW
Open the window and mark center line on the center of the
inner sill, as shown in Figure. 6.
2. ATTACH L BRACKET
a. Install the L brackets behind the inner window sill, with
the short side of bracket as shown.
Use the 2 screws (TYPE A) provided.
b. The bracket helps to hold unit securely in place. Be sure
to place bracket edge flush against back of inner sill. See
Figure. 7.
CAUTION:
During the following step, hold
unit firmly until window sash is lowered to top
channel behind side panel frames. Personal injury or
property damage may result if unit falls from window.
3. INSTALL THE AIR CONDITIONER IN THE WINDOW
a. Carefully lift the air conditioner and slide it into the open
window. Make sure the bottom guide of the air conditioner drops into the notches of the
L bracket. See Figure. 8.
IMPORTANT :
When the air conditioner drops into the L bracket, the air conditioner will be centered in window opening as shown in
Figure. 9.
b. While steadying the air conditioner, carefully bring the
window sash down behind the upper guide of the air conditioner, as shown in Figure. 10.
ROOM SIDE
CENTER LINE
INNER SILL
SEAL STRIP
(TYPE D)
OUTSIDE
INSIDE
L
BRACKET
OUTER SILL
SHORT SIDE
INNER SILL
TYPE A
8"
8"
CENTER LINE
SEAL
WINDOW FRAME
BOTTOM
GUIDE
ABOUT
1/4"
L
BRACKET
UPPER GUIDE
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Type A
Type A
F
Cool
F1 LOW
F2 MED
F3 HIGH
Energy
Saver
Fan
TEMP
Dry Timer
C enter L ine
Service Manual 11
Installation
4. SECURE THE GUIDE PANELS
Extend the guide panels (TYPE F) to fill the window
opening using 4 screws (TYPE B) to secure them, as
shown in Figure. 11.
5. INSTALL THE SASH SEAL AND SASH LOCK
a. Cut the sash seal (TYPE E) to the window width. Stuff
the sash seal between the glass and the window to
prevent air and insects from getting into the room, as
shown in Figure. 11.
b. Fasten the L bracket using a (TYPE A) screw, as
shown in Figure. 11.
6. Window installation of room air conditioner is now
completed. See ELECTRICAL DATA for attaching
power cord to electrical outlet.
REMOVAL FROM WINDOW
Trun the air conditioner off, disconnect the
power cord, remove the L bracket and the
screws installed through the top and bottom
of the guide panels, and save for reinstallation later. Close the guide panels. keeping a
firm grip on the air conditioner, raise the
sash, and carefully tilt the air conditioner
backward, draining any condensate water.
Lift the air conditioner from the window ad
remove the sash seal from between the windows.
NOTICE
Figure 11
L Bracket
Type A
Sash Seal
(Type F)
Type B
12 Room Air Conditioner
Operation
Operation
• Designed for COOLING ONLY.
• Powerful and quiet cooling.
• Top-down 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 CONTROL
DISPLAY
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
To 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 BUTTON
This button can automatically control the temperature of the room. The temperature can be set within a range of 60°F to
86°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 BUTTON
Every 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 SELECTOR
Every time you push this button, it is set as follows.
(Hi [F3] ➔ Low [F1] ➔ Med [F2] ➔ Hi [F3] ➔ Low [F1] ➔...)
ON/OFF TIMER BUTTON
You 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 time
you 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 RECEIVER
Function of Controls
Cool
Energy
Saver
Fan
Dry Timer
3 45
TIMER POWERMODE
F1 LOW
F2 MED
F3 HIGH
TEMP
FAN
SPEED
'
F
1
6
2
Power
1
Temp
Fan Speed
Timer Mode
5
2
4
3
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