Lg Gwhd5000 Service Manual
website http://www.lgservice.com
Room Air Conditioner
SERVICE MANUAL
MODELS:GWHD5000
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
IN THIS MANUAL.
2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions..........................................................................................................................................3
Dimensions .....................................................................................................................................................7
Outside Dimensions...................................................................................................................................7
Product Specifications ..................................................................................................................................8
Installation.......................................................................................................................................................9
Select the Best Location ...........................................................................................................................9
How to Install..............................................................................................................................................9
Installation Kits Content(Some Models)...................................................................................................10
How to Secure the Drain Pipe..................................................................................................................11
Operation ......................................................................................................................................................12
Features...................................................................................................................................................12
Insulation Resistance Test........................................................................................................................12
About the Controls on the Air conditioner ................................................................................................12
Disassembly..................................................................................................................................................13
Mechanical Parts......................................................................................................................................13
Air Handling Parts ....................................................................................................................................14
Electrical Parts .........................................................................................................................................15
Refrigerating Cycle...................................................................................................................................16
Schematic Diagram.......................................................................................................................................19
Wiring Diagram.........................................................................................................................................19
Troubleshooting Guide.................................................................................................................................20
Piping System ..........................................................................................................................................20
Troubleshooting Guide .............................................................................................................................21
Room Air Conditioner Voltage Limits........................................................................................................23
Exploded View ..............................................................................................................................................26
Replacement Parts List ................................................................................................................................27
Service Manual 3
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 property only.
Be sure not to do.
Be sure to follow the instruction.
WARNING
Installation
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.
••
Gasolin
Safety Precautions
Operation
Plug in the power plug
properly.
• • •
Otherwise, it will cause
electric shock or fire.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
It will cause electric shock or
fire.
ON
Do not modify power cord
length.
It will cause electric shock or
• • •
fire.
Use the air conditioner on a
single outlet circuit. (See page 7.)
Do not share the outlet with
other appliances.
It will cause electric shock or
fire.
Do not damage or use an
unspecified power cord.
It will cause electric shock or
fire.
Always plug into a
grounded outlet.
No grounding may cause
electric shock.
Unplug the unit if strange
sounds, odors, or smoke
come from it.
• • •
Otherwise it will cause fire
and electric shock accident.
4 Room Air Conditioner
Do not use the socket if it is
loose or damaged.
It may cause fire and electric
shock.
Do not operate with wet
hands or in damp
environment.
It may cause electric shock.
Safety Precautions
CAUTION
Close all doors, windows and other
outside openings to the room.
•
The air conditioner must be operated in
a enclosed area to be most effective.
If water enters the product, turn off 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.
Ventilate before operating air conditioner
when gas goes out.
It may cause explosion, fire,and burn.
•
Do not clean the air conditioner with
water.
Water may enter the unit and degrage the
•
insulation.It may cause an electric shock.
ENGLISH
Installation
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.
,
Owner s Manual 5
Safety Precautions
Be cautious not to touch
the sharp edges when
installing.
Operation
Hold the plug by the head
when taking it out.
Unplug the air conditioner
if it will not be used for a
long period.
It may cause injury.
•
• •
It may cause electric shock
and damage.
Sharp
edges
Unplug the air conditioner
before cleaning it.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
• • •
Since the fan rotates at high
speed during operation, it may
This could injury the pet or
plant.
cause injury.
It will waste power consumption
in vain and it may cause accident.
Do not use this appliance
for special purposes such
as pets, foods, precision
machinery, or objects of art.
It is an air conditioner, not a
precision refrigeration system.
Always insert the filter
securely.
Clean it every two weeks.
• • •
Operation without filters will
cause failure.
Use a soft cloth to clean. Do
not use wax, thinner, or a
strong detergent.
The appearance of the air
conditioner may deteriorate,
change color, or develop
surface flaws.
ax
Thinner
W
6 Room Air Conditioner
Do not drink water drained
from air conditioner. Do not
direct airflow at room
occupants only.
It is not sanitary and could
cause illness or personal
injury hazard.
Service Manual 7
Dimensions
Dimensions
H
D
W
W mm(inch) 439(17 5/16")
H mm(inch) 283(11 1/8")
D mm(inch) 326(12
13
/16")
Model
Dimension
All Model
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
8 Room Air Conditioner
Product Specifications
Product Specifications
SPECIFICATIONS ARE SUBJECT TO MINOR CHANGE WITHOUT NOTICE FOR FURTHER
IMPROVEMENT.
NOTICE
COOLING CAPACITY (BTU/h) 5,000
POWER SUPPLY (Phase, V, Hz) 1ø, 115V, 60HZ
INPUT (W) 515
OPERATING CURRENT (AMP.) 4.8
REFRIGERANT CONTROL CAPILLARY TUBE
REFRIGERANT CHARGE (R-22) 200g (7.0 Oz)
INSIDE FAN TURBO
OUTSIDE FAN ROPELLER FAN WITH SLINGER RING
AIR DISCHARGE 2-WAY (RIGHT AND LEFT)
CHASSIS TOP-DOWN
PROTECTOR
TEMPERATURE CONTROL THERMOSTAT
ROCKER SWITCH-1 2 POSITIONS(POWER ON, POWER OFF)
ROCKER SWITCH-2 2 POSITIONS(HI FAN, LOW FAN)
FAN MOTOR 6 POLES
• OVERLOAD PROTECTOR FOR COMPRESSOR
• INTERNAL PROTECTOR FOR FAN MOTOR
GWHD5000
MODELS
ITEMS
Service Manual 9
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 21" to 35".
The upper and lower sash must open sufficiently to allow
a clear vertical opening of 12" 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. 3. 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. 3.
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.
NOTICE
Installation
Installation
Select the Best Location
How to Install
This air conditioner is designed with a button-down chassis so it can be easily installed in a window.
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 10" 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.
ABOUT / "
Over 20"
HEAT
RADIATION
FENCE
AWNING
OUTSIDE
INSIDE
COOLED AIR
30"-60"
1
2
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 1
Figure 2
Figure 3
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