LG U9CV1C User manual

Read this owner’s manual thoroughly before operating the appliance and
keep it handy for reference at all times.
MFL71825202
OWNER’S MANUAL
Air Purier
Rev.01_110921 Copyright © 2021 LG Electronics Inc. All Rights Reserved
www.lg.com
U9C Series
EN ENGLISH

EN
Index
This manual may contain images or content different from the model you purchased. This
manual is subject to revision by the manufacturer.
SAFETY INSTRUCTIONS
Installation
10 Parts Instruction
12 Unpacking the Appliance
13 Installation Location Requirements
13 Transportation Requirements
Operation
14 Status Display
15 Control Panel
17 Getting Started
20 Using Extra Functions
Smart functions
24 LG ThinQ Application
27 Smart Diagnosis
Maintenance
28 Maintaining the Appliance
29 Cleaning the Appliance
29 Maintaining the Filter
Troubleshooting
32 Before Calling for Service
36 Appliance Specifications
WARRANTY (USA)

03
EN
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.
This symbol is displayed to indicate matters and
operations that can cause risk. Read the text marked
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.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, re, 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.

04
EN
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.
•Do not touch the power plug with wet hands.
•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.
•Do not bend the power cord excessively or place a heavy
object on top of it.
•Do not extend the length of the power cord or alter it.
•Do not use several devices on a multi-socket extension outlet.
•Make the connection securely so that screw in terminals will
not be loosened when the power cord is pulled.
•Make sure that the power cord cannot be be pulled out or
damaged during operation.
•If the power cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualied person in
order to avoid a hazard.
•This appliance has a polarized plug (one blade is wider than
the other). To reduce the risk of electric shock, this plug is
intended to t in a polarized outlet only one way. If the plug
does not t fully in the outlet, reverse the plug. If it still does
not t, contact a qualied electrician. Do not attempt to defeat
this safety feature.

05
EN
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 product or power plug and ventilate the area
immediately.
•Do not clean the appliance with brushes, cloths or sponges
which are abrasive or made of metal.
•If you detect any abnormal noise, odor or smoke, unplug the
product immediately and contact an LG Electronics Customer
Information Center.
•Only an authorized repair person should disassemble, repair,
or modify the appliance.
•Do not use or store re, combustibles (ether, benzene,
alcohol, drugs, propane, butane, combustible spray,
insecticide, air freshener, cosmetics, etc.) or ammable
materials (candles, lamps, etc.) near the product.
•Do not place the power cord under rugs, carpeting or mats.
•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 install and use broken parts.
•Do not put ammables into the appliance.
•Do not allow children to climb on or play with the appliance.
•Do not place anything on top of the appliance.

06
EN
•The fan is not a toy. It should not be played with or placed
where young children can reach it.
•Be careful that children do not get their hands caught in the
vanes by putting their hands during the vanes operation.
•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.
•Be careful not to let any part of your body put on between the
vanes during the vane operation.
•Do not replace the UV Lamp while it is plugged in.
- Skin or eye damage may result from directly viewing the light
produced by the lamp in this apparatus. Always disconnect
power before relamping or servicing. Replace Lamp With
Lamp CUD7GF1B, Manufactured by Seoul Viosys Co.,
LTD.Replace Lamp With Lamp LTPL-G35U275GC-TWA,
Manufactured by Lite-On Technology Corporation.
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 lter.

07
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 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 oors.
•Do not place the appliance near curtains.

08
EN
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.
•Do not let the moisture from a humidier 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 lter only for its intended purpose.
•The Deodorizing Care lter and True HEPA lter are
assembled together. Do not try to detach them from each
other.
•Do not insert any objects into the Air outlet.

09
EN
Maintenance
•Do not use strong detergents or solvents to clean the product.
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 lter with water.
•Be careful not to damage the ultra-ne lter when cleaning it
with a vacuum cleaner.

EN
10
EN
Installation
•The appearance or functions of the appliance may differ depending on the model.
Parts Instruction
Front Rear
Controller
•Sets the product functions.
Vane
•Moves depending on the operating
mode(Wide / Direct / Diffusion).
Air Outlet
•It discharges puried air through the lter.
Display
(Status Display / Remote Control Receiver)
•Displays the settings of the product and the
air condition.
Filter
•Minimizes allergens, ne particulates,
possible sources of sick house syndrome,
smog, and other odors.
Smart Diagnosis
•If the product malfunctions, use Smart
Diagnosis to check the product status. (See
Smart Diagnosis in Smart Functions)
Sensor
•PM1.0 (particles with a diameter between
1.0 and 2.5 micrometers) Sensor: Detects
the concentration levels of dust.(You do not
need to clean the sensor lens separately.)
Product Center Line
•It is the center line of the product.
UVnano LED(Only models with UVnano applied)
•Remove the harmful bacteria at internal fan
of the air purier.
Remote Control Holder
•Attach the remote controller to store it.
Handle
•Use when carrying the product.
Temperature/Humidity Sensor
•Detects temperature and humidity.
Air Inlet (Cover)
•Air goes into the purier through the inlet.
•The front and rear covers may be removed
separately.
CAUTION
•Be careful not to stick magnets or metal objects to
the remote controller holder as it is attached with
magnets.
•Be careful that children do not get caught by
putting their hands during the Vane operation.