LG H05TN4 User manual

www.lg.com
Copyright © 2021 LG Electronics Inc. All Rights Reserved
MOT Registration No.: IMKG.46.01.2021
H05TN4
AIR CONDITIONER
TYPE: WALL MOUNTED
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
OWNER’S MANUAL
EN ENGLISH ID BAHASA INDONESIA

DAFTAR ISI
This manual may contain images or content
different from the model you purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS .............................................................. 3
IMPORTANT SAFETY INSTRUCTIONS ..........................................................3
NAMES OF PARTS....................................................................... 11
Indoor Unit....................................................................................................... 11
Outdoor Unit.................................................................................................... 11
INDOOR UNIT DISPLAY...............................................................12
EMERGENCY & AUTO-RESTART FUNCTION ...........................13
Auto-Restart Function .....................................................................................13
Emergency Function .......................................................................................13
REMOTE CONTROLLER .............................................................14
Using Wireless Remote Control......................................................................14
Replacement of Batteries................................................................................15
OPERATING INSTRUCTIONS .....................................................16
Cooling Mode..................................................................................................16
Dry Mode.........................................................................................................16
Fan Mode (Not Fan Button) ............................................................................17
Auto Mode.......................................................................................................17
Display Function (Indoor Display) ...................................................................18
Eco Function ...................................................................................................18
Turbo Function ................................................................................................19
Sleep Function ................................................................................................19
Timer Function ................................................................................................20
PROTECTION............................................................................... 21
MAINTENANCE............................................................................ 22
Antidust Filters ................................................................................................22
Cleaning the Heat Exchanger .........................................................................22
End of Season Maintenance...........................................................................22
Replacing the Batteries...................................................................................22
TROUBLESHOOTING.................................................................. 23

3
EN
SAFETY INSTRUCTIONS
The following safety guidelines are intended to prevent unforeseen risks
or damage from unsafe or incorrect operation of the appliance.
The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as
described below.
This symbol is displayed to indicate matters and operations
that can cause risk. Read the part with this symbol carefully
and follow the instructions in order to avoid risk.
WARNING
This indicates that the failure to follow the instructions can cause
serious injury or death.
CAUTION
This indicates that the failure to follow the instructions can cause the
minor injury or damage to the product.
The following symbols are displayed on indoor and outdoor units.
This symbol indicates that this appliance uses a flammable
refrigerant. If the refrigerant is leaked and exposure to an
external ignition source, there is a risk of fire.
This symbol indicates that the Operation Manual should be
read carefully.
This symbol indicates that a service personnel should be
handling this equipment with reference to the Installation
Manual.
This symbol indicates that information is available such as the
Operating Manual or Installation Manual.

4
EN
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock,
injury or scalding to persons when using this product, follow
basic precautions, including the following:
Children in the Household
This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not
play with the appliance.
Installation
• Do not install the air conditioner on an unstable surface or in a place
where there is danger of it falling.
• Contact an authorized service center when installing or relocating the
air conditioner.
• Install the panel and the cover of the control box safely.

5
EN
• Do not install the air conditioner in a place where flammable liquids or
gases such as gasoline, propane, paint thinner, etc., are stored.
• Make sure that the pipe and the power cable connecting the indoor
and outdoor units are not pulled too tight when installing the air
conditioner.
• Use standard circuit breaker and fuse that conform to the rating of the
air conditioner.
• Do not input air or gas into the system except with the specific
refrigerant.
• Use non-flammable gas (nitrogen) to check for leak and to purge air;
using compressed air or flammable gas may cause fire or explosion.
• The indoor/outdoor wiring connections must be secured tightly,
and the cable should be routed properly so that there is no force
pulling the cable from the connection terminals. Improper or loose
connections can cause heat generation or fire.
• Install dedicated electric outlet and circuit breaker before using the air
conditioner.
• Do not connect the ground wire to a gas pipe, a lightning rod, or a
telephone ground wire.
• Keep any required ventilation openings clear of obstruction.
• Means for disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules.
Operation
• Be sure to use only those parts listed in the service parts list. Never
attempt to modify the equipment.
• Make sure that children do not climb on or hit the outdoor unit.
• Dispose of the batteries in a place where there is no danger of fire.
• Use only the refrigerant specified on the air conditioner label.

6
EN
• Cut off the power supply if there is any noise, smell, or smoke coming
from the air conditioner.
• Do not leave flammable substances such as gasoline, benzene, or
thinner near the air conditioner.
• Contact an authorized service center when the air conditioner is
submerged by flood waters.
• Do not use the air conditioner for an extended period of time in a
small place without proper ventilation.
• In the event of a gas leak (such as Freon, propane gas, LP gas, etc.)
ventilate sufficiently before using the air conditioner again.
• To clean the interior, contact an authorized service center or dealer.
Using harsh detergents may cause corrosion or damage to the unit.
• Be sure to ventilate sufficiently when the air conditioner and a heating
appliance such as a heater are used simultaneously.
• Do not block the inlet or outlet of air flow.
• Do not insert hands or other objects through the air inlet or outlet
while the air conditioner is operating.
• Make sure that the power cable is neither dirty, loose, nor broken.
• Never touch, operate, or repair the air conditioner with wet hands.
• Do not place any objects on the power cable.
• Do not place a heater or other heating appliances near the power
cable.
• Do not modify or extend the power cable. Scratches or peeling
insulation on the power cables may result in fire or electric shock, and
should be replaced.
• Cut off the power supply immediately in the event of a blackout or a
thunderstorm.

7
EN
• Take care to ensure that power cable could not be pulled out or
damaged during operation.
• Do not touch refrigerant pipe, water pipe and any internal parts while
the unit is operating or immediately after operation.
Maintenance
• Do not clean the appliance by spraying water directly onto the
product.
• Before cleaning or performing maintenance, disconnect the power
supply and wait until the fan stops.
Technical Safety
• Installation or repairs made by unauthorized persons can pose
hazards to you and others.
• Any person who is involved with working on or breaking into a
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorizes their
competence to handle refrigerants safely in accordance with an
industry recognized assessment specification.
• Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of
other skilled personnel shall be carried out under the supervision of
the person competent in the use of flammable refrigerants.
• The information contained in the manual is intended for use by a
qualified service technician who is familiar with the safety procedures
and equipped with the proper tools and test instruments.
• Failure to read and follow all instructions in this manual can result
in equipment malfunction, property damage, personal injury and/or
death.

8
EN
• The appliance shall be installed in accordance with national wiring
regulations.
• When the power cord is to be replaced, the replacement work
shall be performed by authorized personnel using only genuine
replacement parts.
• This appliance must be properly grounded to minimize risk of electric
shock.
• Do not cut or remove the grounding prong from the power plug.
• Attaching the earth wire to the power outlet cover screw does not
ground the appliance unless the cover screw is metal, uninsulated,
and the power outlet is grounded through house wiring.
• If you have any doubt whether the air conditioner is properly
grounded, have the power outlet and circuit checked by a qualified
electrician.
• The refrigerant and insulation blowing gas used in the appliance
require special disposal procedures. Consult a service agent or a
similarly qualified person before disposing of them.
• If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified person in order to
avoid a hazard.
• The appliance shall be stored in a well-ventilated area where the
room size corresponds to the room area as specified for operation.
• The appliance shall be stored in a room without continuously
operating open flames (for example an operating gas appliance) and
ignition sources (for example an operating electric heater).
• The appliance shall be stored so as to prevent mechanical damage
from occurring.

9
EN
CAUTION
To reduce the risk of minor injury to persons, malfunction, or
damage to the product or property when using this product,
follow basic precautions, including the following:
Installation
• Do not install the air conditioner in an area where it is directly
exposed to sea wind (salt spray).
• Install the drain hose properly for the smooth drainage of water
condensation.
• Exercise caution when unpacking or installing the air conditioner.
• Do not touch the leaking refrigerant during installation or repair.
• Transport the air conditioner with two or more people or use a forklift.
• Install the outdoor unit such that it is protected from direct sunlight.
Do not place the indoor unit in a place where it is directly exposed to
sunlight via the windows.
• Safely dispose of packing materials such as screws, nails or batteries
using proper packaging after installation or repair.
• Install the air conditioner in a place where the noise from the outdoor
unit or the exhaust fumes will not inconvenience the neighbors.
Failure to do so may result in conflict with the neighbors.
Operation
• Remove the batteries if the remote control is not to be used for an
extended period of time.

10
EN
• Make sure that the filter is installed before operating the air
conditioner.
• Be sure to check if there is a refrigerant leak after installing or
repairing the air conditioner.
• Do not place any object on the air conditioner.
• Never mix different types of batteries, or old and new batteries for the
remote control.
• Do not let the air conditioner run for a long time when humidity is very
high or when a door or a window has been left open.
• Stop using the remote control if there is a fluid leak in the battery. If
your clothes or skin are exposed to the leaking battery fluid, wash off
with clean water.
• Do not expose people, animals, or plants to the cold or hot wind from
the air conditioner for extended periods of time.
• If the leaking battery fluid has been swallowed, rinse the inside of the
mouth thoroughly and consult a doctor.
• Do not drink the water drained from the air conditioner.
• Do not use the product for special purposes, such as preserving
foods, works of art, and etc. It is an air conditioner for consumer
purposes, not a precision refrigeration system. There is risk of
damage or loss of property.
• Do not recharge or disassemble the batteries.
Maintenance
• Never touch the metal parts of the air conditioner when removing the
air filter.
• Use a sturdy stool or ladder when cleaning, maintaining, or repairing
the air conditioner at a height.
• Never use strong cleaning agents or solvents when cleaning the air
conditioner or spray water. Use a smooth cloth.

11
EN
NAMES OF PARTS
Indoor Unit Outdoor Unit
ECO
OPTION
TURBO
MODE FAN
A
FA
UT
N
OC
H
O
E
O
AT
L
E
D
C
R
O
Y
R
L
M
A
EN
IL
Y
I
D
M
F
8
E
E
C
W
E
S
H
L
E
E
E
A
E
A
D
L
P
N
F
TH
T
R
DIS
E
IM
E
E
P
G
L
CL
IN
W
OD
H
E
f
g
hi
a
k
j
l
m
n
o
p
q
a Front panel m Air outlet grille
b Air filter n Outdoor unit rating label
c Optional filter (if installed) oTerminal block cover
d LED Display p Gas valve
e Signal receiver q Liquid valve
f Terminal block cover
g Ionizer generator (if installed)
h Deflectors
i Emergency button
j Indoor unit rating label (Stick position optional)
k Airflow direction louver
l Remote controller
NOTE
• The above figures are only intended to be a simple diagram of the appliance and may not correspond to
the appearance of the units that have been purchased.
de
bc
j
ON/OFF

12
EN
INDOOR UNIT DISPLAY
Display
No. Led Function
1
Temperature display (if
present)/Error code
• Lights up during timer operation when the air
conditioner is operational.
• Displays the malfunction code when fault occurs.

13
EN
EMERGENCY & AUTO-RESTART FUNCTION
Auto-Restart Function
The appliance is preset auto-restart function by
manufacturer. In case of a sudden power failure,
the module memorizes the setting conditions
before the power failure. When the power restores,
the unit restarts automatically with all the previous
settings preserved by the memory function.
To deactivate the AUTO-RESTART function,
proceed as follows:
1 Switch the air conditioner off and plug it off.
2 Press the emergency button meanwhile plug
it in.
3 Keep pressing the emergency button for more
than 10 seconds until you hear four short
beeps from the unit. The AUTO-RESTART
function is deactivate.
• To activate the AUTO-RESTART function,
follow the same procedure until you hear
three short beeps from the unit.
Emergency Function
If the remote controller fails to work or
maintenance necessary, proceed as follows:
Open and lift the front panel up to an angleto reach
the emergency button.
1 One press of the emergency button (one
beep) will lead to the forced COOLING
operation.
2 Two press of the emergency button within 3
seconds (two beeps) will lead to the forced
HEATING operation.
3 To switch off the unit, you just need to press
the button again (a single long beep).
4 After 30 minutes in forced operation, the air
conditioner will automatically start working in
23 °C cooling mode, auto fan speed.
ON/OFF
c
a
b
a Display PCB
b Emergency button
c Front panel
WARNING
• The shape and position of the emergency
button may be different according to the model,
but their function is the same.
NOTE
• The external static pressure of heat pumps is 0
Pa for all models.
• The emergency button in some models could
be on the right part of the unit under the front
panel.

14
EN
Using Wireless Remote Control
You can operate the air conditioner more conveniently with the remote control.
ECO
OPTION
TURBO
MODE FAN
A
FA
UT
N
OC
H
O
E
O
AT
L
E
D
C
R
O
Y
R
L
M
A
EN
IL
Y
I
D
M
F
8
E
E
C
W
E
S
H
L
E
E
E
A
E
A
D
L
P
N
F
TH
T
R
DIS
E
IM
E
E
P
G
L
CL
IN
W
OD
H
E
Symbols Meaning
AUTO
Mode Auto function indicator
COOL Mode Cooling indicator
DRY Mode Dry indicator
FAN Mode Fan indicator
ECO ECO function indicator
[TIMER]
Timer indicator
Temperature indicator
Flashing
Fan speed indicator: Auto low low mid mid
high
Mute indicator
SUPER indicator
Flap swing angle indicator
Deflector swing angle indicator (Optional)
[SLEEP] [TIMER]
[DISPLAY]
Optional functions indicator
NOTE
• Some functions may not be supported, depending on the model.
REMOTE CONTROLLER

15
EN
Replacement of Batteries
Remove the battery cover plate from the rear of
the remote controller, by sliding it in the direction
of the arrow.
Install the batteries according the direction (+ and
-) shown on the Remote Controller.
Reinstall the battery cover by sliding it into place.
WARNING
• Use 2 LRO 3 AAA (1.5V) batteries. Do not
use rechargeable batteries. Replace the old
batteries with new ones of the same type when
the display is no longer legible.
• Do not dispose batteries as unsorted municipal
waste. Collection of such waste separately for
special treatment is necessary.
NOTE
• Child-lock: Press and together to
active.
• Display ON/OFF: Long press ECO button.
•Please remove batteries to avoid leakage
damage when not using for a long time.
WARNING
1 Direct the remote controller toward the air
conditioner.
2 Check that there are no objects between the
remote control and the signal receptor in the
indoor unit.
3 Never leave the remote controller exposed to
the rays of the sun.
4 Keep the remote controller at a distance of at
least 1m from the television or other electrical
appliances.
ECO
OPTION
TURBO
MODE FAN
A
FA
UT
N
OC
H
O
E
O
AT
L
E
D
C
R
O
Y
R
L
M
A
EN
IL
Y
I
D
M
F
8
E
E
C
W
E
S
H
L
E
E
E
A
E
A
D
L
P
N
F
TH
T
R
DIS
E
IM
E
E
P
G
L
CL
IN
W
OD
H
E
a
a Signal receptor

16
EN
OPERATING INSTRUCTIONS
Cooling Mode
COOL
The cooling function allows the air conditioner to
cool the room and at the same time reduces air
humidity.
To activate the cooling function (COOL), press the
MODE button until the symbol COOL appears on
the display.
The cooling function is activated by setting the
button or at a temperature lower than that
of the room.
To optimize the function of the air conditioner,
adjust the temperature (a), the speed (b) and the
direction of the air flow (c) by pressing the button
indicated.
OPTION
ECO TURBO
MODE FAN
a
c
b
Dry Mode
DRY
This function reduces the humidity of the air to
make the room more comfortable.
To set the DRY mode, press MODE until DRY
appears in the display. An automatic function of
alternating cooling cycles and air fan is activated.
OPTION
ECO TURBO
MODE FAN

17
EN
Fan Mode (Not Fan Button)
FAN
The air conditioner works in only ventilation.
To set the FAN mode, Press MODE until FAN
appears on the display.
OPTION
ECO TURBO
MODE FAN
Auto Mode
AUTO
Automatic mode.
To activate the AUTO mode of operation, press
the MODE button on the remote controller until the
symbol AUTO appears on the display.
In AUTO mode, the air conditioner will run
automatically according to the room temperature.
OPTION
ECO TURBO
MODE FAN

18
EN
Display Function (Indoor
Display)
DISPLAY
Switch on/off the LED display on panel.
Press OPTION at the fist time, select the DISPLAY
by pressing the button or until symbol
DISPLAY is flashing; Press OPTION again to
switch off the LED display on the panel, and
DISPLAY appears on the remote controller display.
Do it again to switch on the LED display.
OPTION
ECO TURBO
MODE FAN
Eco Function
ECO
The air conditioner works in economic mode.
Only in Heating or Cooling model, press ECO
button and symbol ECO will appear on the display,
the air conditioner will work in energy saving
process.
To cancel this function, pressing the MODE to
switch other mode or pressing the ECO button
again.
OPTION
ECO TURBO
MODE FAN

19
EN
Turbo Function
TURBO
To activate turbo function, pressing the button
TURBO or pressing the button FAN until symbol
appears on the display.
To cancel this function, pressing the FAN to switch
other fan speed or pressing the TURBO button
again.
In AUTO/HEAT/COOL/FAN mode, when you select
TURBO feature, it will use the highest fan setting
to blow strong airflow.
OPTION
ECO TURBO
MODE FAN
Sleep Function
SLEEP
Press OPTION at the fist time, select the SLEEP
by pressing the button or until symbol
SLEEP is flashing; Press OPTION again to
activate the SLEEP function, and SLEEP appears
on the display.
Do it again to deactivate this function.
After 10 hours running in sleep mode, the air
conditioner will return to the previous setting mode.
OPTION
ECO TURBO
MODE FAN

20
EN
Timer Function
TIMER
To set the automatic switch-on/off of the air
conditioner.
For timer on, before proceeding with the time:
Switch the conditioner off (with the key ).
Program the working mode with the button MODE
and the fan speed with the button FAN.
Timer setting/change/cancel:
1 Press OPTION at the fist time, select the timer
by pressing the button or until symbol
TIMER is flashing;
2 Press OPTION again, the data symbol like
and TIMER will be flashing;
OPTION
ECO TURBO
MODE FAN
3 To set the timer or change the timer:
• Press the button or to set the
expected timer (Increase or decrease at half-
hour intervals) the symbols hand TIMER
both are flashing.
• Press OPTION or waiting for 5 seconds
without any operation to confirm the timer,
the pre-setting timer like and symbol
TIMER will be on the display.
To cancel the timer (if TIMER is on)
• Press OPTION or waiting for 5 seconds
without any operation to cancel the timer.
4 A sample for the Timer-on as Figure1, Timer-off
as Figure2.
AUTO COOL DRY
FANECO
HEALTH MILDEW
CLEAN
AUTO COOL DRY
ECO
REMITREMIT
NAELCNAELC YYALPSIDALPSID
PEELSPEELS REMITREMIT LEEF
IL
EEFI
DISPLAY 8 CH
HEAT
HEAT
Figure1, Timer-on
when switch off
Figure2, Timer-off
when switch on
NOTE
• All processing should be operated in 5 seconds,
otherwise the processing will be cancelled.