OWNER'S MANUAL
AIR PURIFIER
Before beginning installation, read these instructions
carefully. This will simplify installation and ensure that the
product is installed correctly and safely. Leave these
instructions near the product after installation for future
reference.
ENGLISH
FH15GP*J*
MFL71891950
Rev.01_092223
www.lg.com
Copyright © 2017-2023 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS
This manual may contain images or
content that may be different from the
model you purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS
READ AND SAVE THESE INSTRUCTIONS..........................................................3
WARNING INSTRUCTIONS ................................................................................3
CAUTION INSTRUCTIONS .................................................................................7
OPERATION
Product Overviews...........................................................................................10
Preparation before Operation........................................................................14
Examining Features .........................................................................................18
Operating the Air Purifier ...............................................................................22
Using the Extra Functions ...............................................................................25
Overall Air Quality............................................................................................28
SMART FUNCTIONS
LG ThinQ Application.......................................................................................29
Smart Diagnosis ...............................................................................................30
MAINTENANCE
Maintaining the Product .................................................................................32
TROUBLESHOOTING
Before Calling for Service................................................................................37
APPENDIX
Information.......................................................................................................41
3
SAFETY INSTRUCTIONS
ENGLISH
SAFETY INSTRUCTIONS
READ AND SAVE THESE 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.
Safety Messages
WARNING 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:
Technical Safety
• 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
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 failure to follow the instructions can cause
serious injury or death.
CAUTION
This indicates that failure to follow the instructions can cause
minor injury or damage to the product.
4
SAFETY INSTRUCTIONS
responsible for their safety. Children should be supervised to ensure
that they do not play with the appliance.
• The fan is not a toy. It should not be played with or placed where
young children can reach it.
• 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.
• Only an authorized repair person should disassemble, repair, or
modify the appliance.
• Do not touch the power plug with wet hands.
• Do not place the power cord under rugs, carpeting or mats.
• Do not install and use broken parts.
• To avoid overheating, do not cover the product.
• Do not place this product directly under an electrical outlet.
• Do not use heaters in bathroom, shower booth or swimming pools.
• Do not use the product if it has been dropped on the floor.
• Do not use the product if the heater is damaged.
• Some parts of this product become very hot and may cause burns.
Special care should be taken when using this product in the presence
of children and infirm people or animals.
• To reduce the risk of fire, make sure that fabrics, curtains, or other
combustible materials are kept at least 1 meter away from the air
outlet.
Installation
• Do not install the appliance on an uneven or inclined surface.
• Do not install the appliance in an area exposed to direct sunlight or
near heat-generating equipment.
• Do not install the product in a place where combustible gas may leak
or industrial oil or metallic particulates are present.
• Do not allow the appliance to push against the power cord or plug.
5
SAFETY INSTRUCTIONS
ENGLISH
• Do not bend the power cable excessively or place a heavy object on
top of it.
• Do not extend the length of the power cable or alter it.
• Do not use several devices on a multi-socket extension outlet.
• Make the connection securely so that screw in terminals may not be
loosened when the cable is pulled.
• Make sure that the power cable cannot be pulled out or damaged
during operation.
• When unplugging the power cord, always pull it by the plug.
• Unplug the appliance during thunder or lightning storms or when not
in use for a long time.
Operation
• If the appliance is immersed in water, stop using it and contact an LG
Electronics Customer Information Center.
• If there is a gas leakage (isobutane, propane, LNG, etc.), do not touch
the appliance or power plug and ventilate the area immediately.
• If you detect any abnormal noise, odor or smoke, unplug the
appliance immediately and contact an LG Electronics Customer
Information Center.
• Do not clean the appliance with brushes, cloths or sponges which are
abrasive or made of metal.
• Do not use or store fire, combustibles (ether, benzene, alcohol, drugs,
propane, butane, combustible spray, insecticide, air freshener,
cosmetics, etc.) or flammable materials (candles, lamps, etc.) near the
product.
• Do not allow animals or pets to chew on the power cord.
• Do not move the appliance when it is in operation.
• Do not hit the appliance.
• Do not insert hands or metal objects into the air inlet or outlet.
• Do not put flammables into the appliance.
• Do not move or operate the appliance while its cover is open.
6
SAFETY INSTRUCTIONS
• Do not allow children to climb on or play with the appliance.
• Do not place anything on top of the appliance.
UVnano Function
NOTE
• UVnano is a compound word of UV (ultraviolet rays) and nanometer
(length unit).
• This product uses UVnano LED. Do not disconnect or replace the
UVnano LED arbitrarily. LEDs must be replaced only by LG-approved
service providers.
• Harmful UVnano radiation may leak if the device is used in an
unintended way or if the wires are damaged. UVnano radiation, even
in very small amounts, can harm the eyes and skin.
• The UVnano LED is not a part that needs cleaning, so do not clean the
UVnano LED or parts with the UV hazard label separately.
• If the UVnano LED is damaged, do not operate it.
• This appliance contains a UV emitter. Do not stare at the light source.
Maintenance
• Dispose of the packing materials (vinyl, styrofoam, etc.) to keep them
out of reach of children.
• Take care not to injure or pinch yourself when you detach and
reattach parts of the appliance.
• Turn off and unplug the appliance before cleaning it or replacing the
filter.
7
SAFETY INSTRUCTIONS
ENGLISH
CAUTION INSTRUCTIONS
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 tilt the appliance to pull or push it when transporting.
• Do not install the appliance in a vehicle, RV, or marine vessel.
• Do not place the appliance near a TV or stereo equipment.
• Do not place the appliance under bright light.
• The appliance must be installed in accordance with national wiring
regulations.
• When moving or storing the appliance, wrap the power cord around
the base of the appliance to prevent personal injury, damage to the
cord or damage to floors.
• Do not place the appliance near curtains.
Operation
• Do not use the product for removal of toxic gas such as carbon
monoxide.
• Do not use the product for ventilation purposes.
• Do not use the appliance for a long time in a region with unstable
voltage.
• Do not place obstacles around the air inlet or outlet.
• For safe use of the appliance, children or others with reduced mental
capabilities need to be closely monitored by a person who is
responsible for their safety.
• Do not use the product for special purposes such as preserving
plants, precision instruments, artworks, etc.
• Do not operate the appliance with wet hands.
8
SAFETY INSTRUCTIONS
• Do not let the moisture from a humidifier directly touch the
appliance.
• Do not use the appliance while it is not in an upright position.
• Do not use the appliance near objects vulnerable to heat.
• Do not use detergents, cosmetics, chemicals, air fresheners, or
disinfectants in the appliance.
• Do not touch any internal parts while the unit is operating or
immediately after operation.
• Use the filter only for its intended purpose.
• The Deodorization filter and Dust collection filter are assembled
together. Do not try to detach them from each other.
• Do not insert any objects into the Air outlet.
Maintenance
• Do not use strong detergents or solvents to clean the appliance. Use
a soft cloth to clean.
• Do not clean the appliance with an alkaline detergent.
• Do not wipe the appliance surface using sulfuric acid, hydrochloric
acid or organic solvents (thinner, kerosene etc.) or attach a sticker on
the appliance.
• Do not allow water inside the appliance.
• Do not wash the filter with water.
• Be careful not to damage the ultra-fine filter when cleaning it with a
vacuum cleaner.
Battery/Remote controller
• Do not modify the battery.
• An improperly installed battery may cause an explosion.
• Do not recharge or take apart the battery.
• Do not dispose of the battery by placing it in a fire, or expose it to high
temperatures.
9
SAFETY INSTRUCTIONS
ENGLISH
• Remove and store the battery in a safe location if you don’t intend to
use the remote controller for a long time.
• Do not press multiple buttons at the same time on the remote
controller.
• Do not kick or step on the remote controller.
• Do not use the remote controller near water or in areas with high
humidity.
• Do not expose the remote controller to fire or high temperatures.
10
OPERATION
OPERATION
• The exterior or components of the product may vary depending on the model.
• The remote controller may not be provided depending on the model.
Product Overviews
Front
• The exterior or components of the product may
vary depending on the model.
a
Controller
• Use it to set the appliance functions.
b
Air Outlet
• Purified air from the filter is emitted.
c
Display
(Status Display / Receiver for Remote
Controller Signal)
• Use it to check the settings of the appliance
and the air quaility.
d
Filter
• Minimizes allergens, fine particulates,
possible sources of sick house syndrome,
smog, and other odors.
e
Smart Diagnosis / Odor (Gas) Sensor
11
OPERATION
ENGLISH
• If the product malfunctions, use Smart
Diagnosis to check the product status. (See
Smart Diagnosis
in
Smart Functions
)
• Detects odors (gas).
f
PM1.0 Sensor
• Detects the dust concentration levels.
g
Product Center Line
• It is the center line of the product.
h
UVnano LED
(Only models with UVnano applied)
• Remove the harmful bacteria at internal fan
of the air purifier.
i
Heater (inside the product)
• During heating, the heater warms the air
drawn into the air purifier.
Back
a
Remote Controller Holder
• Use it to attach the remote controller to the product for storage.
• Attach the front side of the remote controller below the remote controller attachment label.
b
Handle
• Use it to carry and move the product.
c
Temperature/Humidity Sensor
• Detects the ambient temperature and humidity.
d
Air Inlet (Cover)
• Air is sucked into the air purifier through the air inlet.
12
OPERATION
• The front and rear covers can be removed separately.
CAUTION
• The remote controller holder uses a magnet, so do not allow other magnets or metal objects to stick to it.
- Failure to do so may cause product failure.
13
OPERATION
ENGLISH
Filter
a
Deodorization Filter
• This filter removes even smog-causing substances (SO
2
, NO
2
), sick house syndrome-causing
substances (toluene, formaldehyde), and household odors (ammonia, acetic acid, acetaldehyde)
b
Dust collection filter
• Minimizes PM1.0 and cigarette smoke from the air.
c
Filter handle
• It is used to put in or pull out the filter.
• The side with the handle should face upwards.
d
Ultra-Fine Filter
• The Ultra-Fine Filter is coupled to the exterior of the filter and primarily removes household dust with
large particles from the air.
CAUTION
• Do not forcefully separate filters, as the filters are coupled.
• Do not throw the filters or use them for other purposes.
Components
a
Remote Controller/Battery (CR2025, 1EA)
b
Quick Guide
c
Safe Plate
d
Safe Guard
14
OPERATION
Preparation before
Operation
Unpacking the Appliance
Unpack the appliance and remove all packing tape
and filter vinyl before using the appliance.
1
Take the product out of the box, and remove
the vinyl or the fixing tape attached to the
product.
2
Based on the front of the product, hold and
gently pull both sides of the air inlet (cover) to
separate it.
• The side with the LG logo on the display of
the product is the front of the product.
3
Remove the filter and detach the vinyl.
• When removing the packaged filter,
separate it from the protective vinyl.
4
Install the filter into the product.
• Make sure that the side with the filter handle
is facing upward.
5
To install the cover again, insert the fixing part
at the bottom of the cover into the fixed groove
at the bottom of the product and then close it.
CAUTION
• Be sure to remove the protective vinyl from the
filter before using the product.
• When installing the filter, pay attention to the
direction of the filter.
- Failure to do so may cause malfunction or
product failure.
- The part with the filter handle is the top.
Installation Location
Requirements
Install the product at least 1m from walls.
15
OPERATION
ENGLISH
• If there is not enough room for air suction, the
air purification performance may degrade.
• The performance of the product may differ
depending on the operating environment
(considering factors such as temperature and
humidity).
- At humidity levels of between 40 % – 70 %, the
product's guaranteed performance standards
can be achieved.
• Do not install the product near direct sunlight or
lighting with strong light.
- Doing so may cause discoloration of the
product.
Transportation Requirements
• When moving or storing the product, make sure
that the power plug does not touch the floor by
wrapping the cord around the lower part of the
product.
- Failure to do so may damage the power plug
or scratch the floor.
• Do not transport the product by holding its
exterior cover.
- The cover may open and cause the product to
drop. Dropping the product may cause injury
or product failure.
• Carry the product safely by using the handles at
the front top and back of the product.
16
OPERATION
Installing the Safe Plate
1
Assemble the safe plate as shown in the
following figure.
2
Place the product so that the center line of the
product aligns with the center line of the safe
plate.
3
Assemble the product completely by pressing
it down until a click is heard.
• If the product is tilted, reassemble it.
• When the safe plate is fixed, tilt the product
backward to separate it.
CAUTION
• Be sure to install the safe plate in order to use
the product safely.
• Do not use the product on uneven or inclined
floors.
• When assembling the safe plate, be careful to
prevent your hand from being jammed.
• Do not use the safe plate for purposes other
than that for which it is designed.
17
OPERATION
ENGLISH
Installing the Safe Guard
The safe guard prevents burning from the hot air
outlet.
1
Insert the top hook of the safe guard into the
top of the outlet on the back of the product.
2
Completely assemble the hook of the safe
guard into the outlet on the back of the
product in the form shown in the figure below.
3
Separate it by pulling the bottom part of the
safe guard.
CAUTION
• If you have an infant, use the product safely only
after installing the safe guard.
• Do not push or pull the product while the safe
guard is installed on the product.
• When assembling or disassembling the safe
guard, be sure to turn the heating function off
and check that the surface temperature is low.
• Do not use the safe guard for purposes other
than that for which it is designed.
18
OPERATION
Examining Features
Controlling the Air Purifier
Control Panel
a
Standby On/Off
Button
• Use it to turn the product on or off.
b
Speed
Button
• Use it to set the fan speed.
• You can reset the filter replacement alert by pressing and holding down the
J
button for 3 seconds.
• When you press and hold the
K
button for 3 seconds, the product will be ready to connect to Wi-Fi,
and you can connect to Wi-Fi through the
LG ThinQ
Application.
c
Heating
Button
• Use it to start or stop heating.
NOTE
• You can press the two buttons on the controller at the same time for 3 seconds to use extra functions.
Long press
(more than 3
seconds)
Extra Functions Description
Smart diagnosis You can determine the cause of a product failure
through the
LG ThinQ
application.
19
OPERATION
ENGLISH
Status Display
a
Add-On Display
NOTE
• The UVnano function is displayed only for models using the UVnano LED.
b
Air Quality Light
• You can check the overall air quality through the air quality light.
c
Status Display
• Air quality, PM10/PM2.5/PM1.0 concentration, temperature and humidity are displayed.
Icon Description
It is displayed when operating in heating mode.
It is displayed when UVnano is set.
The color indicating odor concentration is displayed.
The color indicating Overall Air Quality is displayed.
It is displayed when a Wi-Fi connection is established.
It is displayed when a new function that can be upgraded becomes available.
It is displayed when the sleep timer is set.
It is displayed when it is time to replace the filter
20
OPERATION
Remote Controller
a
Standby On/Off
Button
Use it to turn the air purifier on and off.
b
Speed
Button
Use it to adjust the fan speed of the air purifier.
• Press and hold the
J
button to increase the
fan speed continuously.
• Press and hold the
K
button to decrease the
fan speed continuously.
c
Auto Wind
Button
Use it to set the fan speed automatically.
d
Mode
Button
Use it to set the operation mode.
e
Information Display
Button
Use it to set the standby screen.
f
Target Temperature
Button
Use it to change the target temperature during
heating. (Temperature setting range: 16°C to
30°C)
g
Heating
Button
Use it to start or stop heating.
h
Rotation
Button
Use it to set the rotation.
• Press and hold the button for 2 seconds to
turn the product sound on or off.
i
Sleep Timer
Button
Use it to schedule the time to turn off the
product.
• Press and hold the button for 2 seconds to set
the display brightness.
Inserting a Button Type Battery
1
Press the hook of the battery tray with a simple
tool such as a cotton swab, then slide it to the
side to remove the battery tray.
2
Insert the battery with the + polarity facing up
in the battery tray.
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