PH-U459WN - Air purifier LG - Free user manual and instructions

USER MANUAL PH-U459WN LG

Read before using product (safety instruction), use properly.

About ensuring users safety and property.

Product warranty card is enclosed with the user manual.

After careful read through the user manual, do keep it in a handy place.

PH-U459WN

MFL68503801

www.lg.com

The advantages are

Congratulations on your purchase and welcome to the LG Family.

By following the use and care instructions in this manual, your air purifier will provide you with many years of reliable service.

3-dimensional sterilization system

• Bio-enzyme deodorization filter completely removes those factors which could cause the sick house syndrome such as VOCs, harmful chemical element and its smell.
• Sterilized by Washable HEPA filter Inside, once again sterilized by NPI(Nano Plasma Ion) outside. Only LG air purifier can sterilize perfectly both inside and outside.

Easy to use HEPA filter system.

• Filter cleaning is easy with LG's convenient filter separation system. Filters can be washed over and over again.

Powerful allergy filter

- The allergy filter could absorbs and decomposes allergic ingredients, having the allergy preventive effect also removing the odor and anti-bacteria effect.

Natural humidifier filter system

- Allergy and various types of diseases can be prevented by maintain appropriate level of humidity in the dry indoor air.

Content

Getting Started

☐ The advantages are 2
□ Safety Precautions 4-12
□ Installation 13
Air Purifier Start Guide 14
☐ Name of Each Part ....15-20
- Mainframe
- Humidifier function
- Display and control panel
- Front LED lighting
- Filter System
- Humidifier filter system

How to Use

Operation 21-23
- Air Purifying Operation
- Manual Mode
- Auto Mode
- Sandstorm Mode
- Sleeping Mode
☐ Additional functions 24-27
- Off timer function
- NPI sterilization function
- Filter checking function
- Lock function
- Power save setting
□ Humidifier function 28-30

Care and Cleaning

□ Cleaning 31
☐ Exterior and dust sensor cleaning method .....32-33
☐ Filter cleaning and exchange 34-36
Storage 37
☐ Troubleshooting before calling for service 38-40
□ Product standard 41

Safety Precautions

The precautions related with the safety shown below are to prevent unexpected hazard and damage through safe and accurate operation of the product.

Warning / Caution

This symbol will alert you to any product detail or operation that could lead to a safety hazard if the instructions in the manual are not followed properly.

WARNING

If not followed, it can cause death or major injury to the user.

CAUTIONS

This symbol will alert you to the possibility of improper use that may result in damage. Read instructions to avoid damage or injury.

Safety Precautions

Warning

Do not arbitrarily change or extend the power line. This will be the cause of fire and electric shock.

When using the multi- outlet, do not use several appliances at the same time.

Excessive use of electric power will be the cause of fire and electric shock.

When the outlet is damaged or loosened, do not use it.

It will be the cause of fire and electric shock.

When gas is leaked, perform the ventilation by opening the window before operating the air purifier or remote controller.

Otherwise, it will be the cause of the explosion, fire, and burn.

Do not use the product at the location where moisture or floating particles are prevailed such as toilet or bathroom, laundry, etc. This will be the cause of fire and electric shock.

Hand using a power tool to cut electrical socket (no text or symbols visible)

Cartoon illustration of a crossed-out box and a smiling cylindrical object (no text or symbols)

Carry out the installation by avoiding direct sunlight, heating appliance, and dampness. These will be the cause of the electric shock, fire, and failure.

Do not apply any impact on the front panel.

It can cause injury, product damage or electric shock.

Do not turn off the product by unplugging the power.

It can cause electric shock or problem to the product.

Do not place fire source near to the product.

This will be the cause of fire.

Illustration of a child running away from a giant refrigerator with stars emerging (no text or symbols)

Cartoon illustration of a person holding a smartphone while standing beside a large cylindrical device with a crossed-out arrow (no text or symbols)

Cartoon illustration of a book character with a crossed arrow and a small object nearby (no text or symbols)

Safety Precautions

Warning

Insert securely the power plug up to the end of its plug so that it will not be shaken.

If connection is unstable, it will be the cause of fire.

Hand holding a small electronic device with an arrow indicating direction (no text or symbols)

Do not touch the power plug with wet hand.

This will be the cause of electric shock and injury.

Illustration of a hand using a tool to clean or paint the surface (no text or symbols)

When cleaning the product, start only when the power is unplugged and the rotating fan stops.

It can cause electric shock or injury.

Do not let the moisture generated from the humidifier directly contact the product.

It can cause electric shock, fire and problem to the product.

Do not remove the plug by pulling its power cord section.

This will be the cause of fire and electric shock.

Illustration of a hand using a power tool to lift a wall-mounted panel (no text or symbols visible)

Do not install the product at the location where excessive industrial oil smoke or metallic dust is prevailed.

This will be the cause of fire and product failure.

Do not place rug etc. on the power cord.

If heavy object is placed on the rug because the cord is invisible, it will be the cause of fire and electric shock.

If the product is flooded, always entrust it to the customer care center.

There is the hazard of electric shock or fire.

Do not touch the product and filter with wet hands.

It can cause electric shock or problem to the product.

Do not use power outlet except for AC 220-240 V. It can cause fire or electric shock.

Illustration of industrial smokestacks and a factory chimney with no visible text or symbols

Safety Precautions

Warning

Do not sprinkle insecticide or spray to the product.

This will be the cause of fire and product failure.

When closing the front panel, be careful not to insert any part of the body such as hand etc. This will be the hazard of product damage or injury.

Do not move the product while it is under operation.

This can be the cause of fire and electric shock or partial damage of the product can be occurred.

Cartoon illustration of a smiling cylindrical object with arms crossed out, surrounded by motion lines (no text or symbols)

When the product falls over during humidifier function, the water can cause an electric shock.

After unplugging the power cord, remove any moisture inside the product and dry sufficiently before using the product.

Do not allow water to be infiltrated into the product.

This will be the cause of fire and electric shock.

Do not move the product during or immediately after the use.

Water can overflow to cause electric shock.

Do not put coffee, flower vase, or various drinks on the top section of the product.

This will be the cause of fire and electric shock.

Do not let the cap of the water tank be assembled without the packing.

Water can easily overflow to cause electric shock or product damage.

If abnormal noise, odor or smoke is coming out from the product, pull out the power plug and contact the customer care center. This will be the cause of fire and electric shock.

If the product is not used for a long period of time, always unplug the power from the outlet and remove any residual water inside the main unit (Water tank, tray). It can cause electric shock or fire. Fungus or bacteria can grow inside the product.

Owner's Manual

Safety Precautions

Warning

Do not fill water directly on to the tray.

Water can overflow to cause damage to the product and electric shock.

Do not use the damaged water tank as is.

Water can flow or overflow from the tray to cause electric shock or problem to product, and it can also damage other appliances.

If there is water in the water tank and tray, move the product after removing the water tank and tray.

Water inside the product can overflow to cause electric shock and product damage.

When cleaning or when separating the tray to remove the water, always unplug the power from the outlet before proceeding. It can cause electric shock, burn or problem to product.

Do not let children climb on top of the product or touch the product without permission.

It can cause injury or problem to product.

Cartoon illustration of a crossed-out trash bin with anthropomorphic legs and a hand gesture (no text or symbols)

Illustration of a hand holding a cross-shaped object with a sad face, being cut by a tool (no text or symbols present)

Caution

Do not install the product on transportation devices (Vehicle/Ship/Airplane etc.)

It can cause problem to the product.

When using combustion devices along with the air purifier in closed indoor setting, frequently ventilate the room. Some hazardous substances, such as carbon dioxide may not be fully removed.

When installing the product close to TV or audio, leave 1m of clearance.

TV or audio may malfunction.

Install the product on a firm location and do not push over or apply impact to the product.

It can cause fire and problem to product.

Install the product at least 1.5m away from lighting device and 10cm between the walls.

It can cause discoloration and the purifying capacity may deteriorate.

Illustration of airplane, helicopter, and refrigerator with cartoon faces (no text or symbols)

Safety Precautions

Caution

Do not use the product as ventilation fan or hood for the range in the kitchen.

It can shorten the product life.

Do not use the product to remove toxic gas such as carbon monoxide.

It can cause product failure.

Do not use the product near the curtain.

Humidity sensor may not work properly.

Do not let the child open the front panel.

The product can fall on top of the child to cause injury.

Do not move the product by grabbing the front panel of the product.

The product may partially be damaged.

Cartoon illustration of a smiling book character holding a cross and a pen, with hands interacting (no text or symbols)

Do not place any obstacles around the air inlet or outlet of the product.

This can cause product failure.

Do not use the product for special application/location such as preservation of animal/plant, precision

machinery, artifact etc. This can cause property damage.

Do not clean the product with strong detergent such as solvent but use smooth cloth.

It can cause fire and product deformation.

Do not store or use combustible gas or flammable material near the product.

It can cause fire or product failure.

When not using the product for an extended period of time, pull out the power plug.

It can cause product failure or fire.

Safety Precautions

Caution

Be sure to insert all the filters before the use and perform regular cleaning of the pre-filter.

Otherwise, it will be the cause of product failure.

Do not damage, process, excessively bend, twist, pull, insert into gap or heat the power cord.

Damaged cord can cause fire or electric shock.

If the power cord is damaged, request for repair to the service technician to prevent any risk.

If not, it can cause fire, electric shock or product failure.

Do not use the product for ventilation etc.

It can reduce the life of the product.

Do not insert any obstacles or metallic objects into the air inlet or outlet.

It can cause product damage, injury or electric shock.

When operating the product, do not open the front panel.

If opening the front panel, the operation will be stopped.

Do not input inflammables into the product.

This will be the cause of fire and product failure.

Always install the product on leveled surface.

If the installation surface is not leveled, the water can overflow from the vibration of the product.

When not used, empty the water in the water tank and tray to avoid from freezing.

If the product is used while the water is frozen, it can cause product failure.

When supplying water to the water tank or carrying the product, always hold the product with both hands.

The water tank can fall over to hit your feet.

Safety Precautions

Caution

Do not use the product near the wall, furniture or ceiling.

It can cause scaling, growth of fungus or deformation.

Cartoon illustration of a can with arms crossed, standing in front of a table (no text or symbols)

Always keep the product leveled with both hands to avoid vibration when carrying the product.

Water tank or tray can fall out to cause damage.

Do not drink the water used in the humidifier.

It can have negative effect on your body such as stomachache or diarrhea.

When throwing away the water on the tray, unplug the power and pull out the tray from the main unit, and then pour out the water.

Water penetrating inside the product can cause product failure.

Exchange the water in the tank with fresh water on a daily basis.

Throw away the water in the tray and clean the tray frequently.

Contaminated water can deteriorate the performance, cause bad smell or send the scaling from the water through the blowing air.

When the product is not used, do not store the product with the water on the tray.

It can cause growth of fungus and bacteria.

Do not use the product sideways.

Water can overflow to cause product failure.

Illustration of a hand holding a cross over a rolled document or paper (no text or symbols visible)

When pouring out the water within the tray, do not lift up the main unit but pull out the tray to pour out the water.

Water penetrated inside the product can cause product failure.

Do not use the product in unstable locations such as table susceptible to heat or on a rug with long tassels.

The product can fall over to spill the water or cause discoloration/deformation to the table and rug.

When moving the product for a long distance, pour out the water inside the main unit (Water tank and tray).

When the product is transported with the water inside the product, it can overflow to cause risk.

Illustration of a child using a smartphone to interact with a smiling phone, while another hand holds a tool near a phone (no text or symbols present)

Cartoon illustration of a smiling cylindrical object with a cross mark and a smaller figure beside it (no text or symbols)

Illustration of a worker cleaning a can with a tool, no text or symbols present

Safety Precautions

Caution

Use clean tap water at temperature of 40^ C or less.

Using water warmer than 40^ C can cause product deformation.

Do not use the humidifier filter for other usage. It can deteriorate the performance of the humidifier filter.

Do not use hot water above 40^ C, air freshener, chemical or detergent in the water tank and tray. Deformation can cause leakage.

Do not apply any impact on the water tank. Damage can cause leakage.

Do not carry the product by holding the tray cover. Damage can cause leakage.

Cartoon illustration of a person struggling to carry a heavy object with a lightning bolt, while another character holds a briefcase (no text or symbols present)

Do not carry the product by holding the water tank handle.

The product can fall over to cause an injury.

Do not drink or feed the water left inside the product (Water tank and tray) to animal or plant. It could be have a negative effect on your body or cause an unexpected accident.

Do not put any magnet or metallic object on top of the main unit. It can cause a malfunction.

Do not leave the product where air conditioner or heat air reaches the product or near the window. It can cause the humidity sensor to be inaccurate.

Do not use the product with the tray, humidifier filter and water tank removed. The performance can be degraded and it can cause water overflow or product failure.

Installation

Places to Install

Mainframe

• Places with handy power connections
• Places with no obstacle to clog air inlet
• Places with horizontal surface and rich air circulation

More than 10cm

Warning

Install the air purifier on moving objects (car or ship etc) may cause the product defect, therefore do not install on those places.

Warning

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 person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

Air Purifier Start Guide

Turn off air purifier when cleaning.

- Cleaning the air purifier with opened windows would disturb the natural air circulation to cause intake too much particles, it may shorten the filter life. After complete cleaning process with enough air circulation, close the windows, turn on the air purifier is the appropriate way to purify air.

Use after enough air circulation when cooking

- When roast meat or fishes, remove the smell by air purifier is not appropriate. The oil particle will block cells on filter, it may cause filter life shorten or filter polluting etc. negative effects. Under this circumstance enough air circulation is necessary. Remove leftover odors by air purifier after no oil particle is the correct and effective way to use product in long-term scale.

Do not stay too closed when sleeping.

• Air purifier fan speed is not strong, before fallen asleep feel cool, after fallen asleep would feel cold. The appropriate way is to keep at least 1 meter distance with air purifier.

Do not place in the corner edge.

- Avoid to install at places surrounded by furniture, appliances etc. or in the edge corner. Install in the edge corner may cause difficulty to purify indoor air from the rest space.

Ensure air circulate 30 minutes at least everyday.

- For those families use the air purifier, air circulation is the prerequisite to ensure enough oxygen supply. Ensure air circulation 30 minutes at least everyday could brings fresh air inflow. Keep opposite windows open may gain a better result for air circulation. In case of being lazy may weaken air refreshing function, therefore it is necessary to ensure clean and maintenance.

Name of Each Part

Mainframe

Hand grip Air outlet Cover Filter case (Pre-filter + Allergy filter + Deodorization filter + HEPA filter) Dust sensing section Odor sensing section Front panel Power cord

※ Shape of the power cord can be different by country.

Name of Each Part

Humidifier function

Humidifier filter Humidifier filter cover Humidifier filter case Tray cover Water tank Tank lever Tank cover Float Cleaning brush Tray Packing Cap Tray lid

Name of Each Part

Display and Control Panel

Off timer indicator

This can be selected from 1 to 9 hours by pressing off timer button. If the front panel is open, "DR" is displayed. "DR" is the abbreviation of DOOR.

Lock indicator

Press the humidifier button and OFF timer button simultaneously to lock or unlock the air purifier.

Fan speed indicator

This can be selected by pressing the fan speed button.

Humidifier indicator

This maintains the optimal level of humidity when the indoor air is dry.

Filter self-checking indicator

Check the filter when light is on.

OFF 00 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPI FILTER CHECK NO WATER

Humidifier

Operation mode indicator

Press the operation mode button to select the operation mode.

Dust/Odor indicator

The higher the level of the dust/odor indicator lamp, the higher the level of contamination

NPI lon indicator

NPI sterilization ion will remove various kinds of bacteria from indoor air.

No water indicator

This is turned on when there is no water in the water tank when using the humidifier function and off when water is filled.

Operation mode button Power On/Off button Fan Speed button ON/OFF MODE SPEED NPI HUMIDIFYING TIMER Power save button Lock button Humidifier button Off timer button NPI lon button

Name of Each Part

Front LED lighting

The operation and cleanness indicator lamp can be turned on/off through the power save function.

* Power save function operates when the user presses the operation mode button and fan speed button on the main unit simultaneously.

88 Filter self-checking indicator Check the filter when light is on. Clean Air Indicator Light / Mo • Under general mode, clean air in

Clean Air Indicator Light / Mood Light

• Under general mode, clean air indicator light will show the quality the air in the surrounding area.
• When the air is at clean, contaminated, and intermediated stage, blue, red and violet color will be indicated respectively.

Name of Each Part

1 2 3 4 Filter case

Filter system (Only the filter section is described.)

Filter name Function
1 Pre-filter	Remove big particles Anti-bacteria function Anti-mildew function	This filter has anti-bacteria, anti- mildew, big particles filtering functions. These 3 functions may extend the filter replacement frequency.
2 Allergy filter		Adsorb and decompose allergic ingredients.
3 Deodorization filter	Replacement deodorization filter	This is the integrated deodorization filter and it removes cigarette smoke (odor), odor of living food waste, odor of animal's fur, odor of toilet, alkaline & acidic odor, and volatile organic compound (VOCs).
	SMOG treatment	This filter can remove SO2 and NO2 substances that may cause eye, respiratory and/or heart disease.
4 Washable HEPA filter		This filter removes fine particles such as the carcass of tick, pollen sac, cigarette smoke (particle), fine dust, mote, fur of animal, etc., and effectively removes virus, mold, bacteria, etc. in the air of the room.

※ For washable filter, please dry it completely in a shade without any dampness.

(If it is not completely dried, it may cause failure or bad odor.)

※ The exchange cycle of allergen, HEPA, and deodorization filter will be altered in accordance with the application environment.

※ Filter case are not enclosed. Do not throw them away.

Name of Each Part

Technical illustration of a circular mechanical component with radial slots and central hub (no text or symbols)

Humidifier filter system

Filter name Function	on Cleaning and replacement cycle
1 Humidifier filter	The indoor air evaporates the water and removes the alien particles included in the water.	Cleaning cycle: More than 1 time weekly Replacement cycle: 6-12 months

※ Life of the humidifier filter may vary based on the water quality.
※ Replace the filter in the following cases even when it is within 6 months.
- When the scaling or odor does not disappear even after cleaning.
- When discoloration (Black/Yellow) or dirtiness is severe.
- When the white chunk attached to the humidifier filter cannot be removed even after cleaned.
- When damage or deformation is severe. (Replace the part based on the manual included in the separately sold part.)

Caution

- Dispose the old humidifier filter according to the recycling direction.

• Material of humidifier filter: PET

Operation

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPi FILTER CHECK NO WATER

ON/OFF MODE SPEED NPI HUME

Air Purifying Operation Purify Indoor Air.

1 Press On/Off Button.

A confirmation tone will sound to indicate that the unit is powering on.

The unit will also produce a tone when the unit is first plugged in.

(Refer to the "start-up operation".) Fresh air will come out from the air outlet.

- Press On/Off button again to turn off.

- When restart air purifier, system will retrieve to the previous operating condition.

OFF 88 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NP+ FILTER CHECK NO WATER

What is "Start-up Operation"?

When first turned on, the unit will go through a Start-up function which prepares the unit for operation. During this two minutes period, the display will fluctuate to indicate that the unit is sensing the air quality in the room.

Use of power

• 220-240V is exclusively used for this product.
• For power supply, use exclusive 220-240V outlet.

Power plug for 220-240

Exclusive outlet for 220-240V

Operation

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPI FILTER CHECK NO WATER

Manual Mode User may manually adjust fan speed.

1 Press the On/Off button.
2 Select Manual Mode by pressing the Operation Mode Button.
3 Select the desired fan speed by pressing the Fan Speed Button.

• Default fan speed is weak speed.
• Fan speed can be operated in 4 levels.

OFF 88 % 188 hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR

ON/OFF MODE SPEED NPI HUMI ① ② ③

Automatic mode The air purifier will automatically set the most appropriate fan speed.

1 Press On/Off button.
2 Select Auto Mode by pressing the Operation Mode Button.

• The fan speed will automatically adjust to the air quality of the room.
• During the Auto Mode, if the Fan Speed Button is pressed, it will be converted into the Manual Mode and fan speed will increase by one level.
• Those functions other than fan speed will be activated when setting up by the user.

OFF 88 % hr MANUAL AUTO SAND SL:EP SPEED DUST ODOR

Operation

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPI FILTER CHECK NO WATER

Sandstorm Mode Purify indoor air effectively when the sandstorm occurs.

1 Press the On/Off button.

2 Select Sand Mode by pressing the Operation Mode Button.

• During the Sand Mode, if the Fan Speed Button is pressed, it will be converted into the Manual Mode and fan speed will increase by one level.
• Fan speed will automatically be adjusted with the pre-inputted program.
• Those functions other than fan speed will be activated when setting up by the user.

OFF 80 % hr MA IUAL AUTO SAND SLEEP SPEEL DUST ODOR

ON/OFF MODE SPEED NPI HUME ① ②

Sleeping Mode Provide quiet indoor atmosphere while sleeping.

1 Press the On/Off button.

2 Select Sleep Mode by pressing the Operation Mode Button.

• During the Sleep Mode, fan speed will switch to weak level, and only the sleeping light on LED indicator will be lighted shortly.
• During the sleep mode, if the Fan Speed Button is pressed, it will be converted into the Manual Mode and the fan speed will increase by one level.

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR

Additional function

OFF 88 hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPI FILTER CHECK NO WATER

Off Timer function Automatically shut down after several hours.

Example) shut down automatically after 3 hours

1 Press the On/Off button.
2 Press Off Timer Button to set 3 hours.

• Each time pressing the button, operation time will increase 1 more hour.

• Each time pressing the button, operation time will increase 1 more hour.
- Up to 9 hours can be selected. After operating till the presetting time, the product will be stopped automatically.

- When selecting 3 hours, the product will be stopped after 3 hours of operation.

ON/OFF MODE SPEED NPI HUMIDIFYING TIMER 1 2

Additional function

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING FILTER CHECK NPI NO WATER

ON/OFF MODE SPEED NPI HUMIDIFYING TIMER 1 2

NPI Sterilization function Purify indoor air effectively when the sandstorm occurs.

During the NPI sterilization operation, many kind of bacteria in the room will be eliminated by discharging the sterilization ion which is harmless to the human body.

1 Press the On/Off Button.

2 Press the ION button to choose expected function.

- Whenever pressing the button once, it will be changed in the sequence of NPI → Function release → NPI → Function release ....

NPI → Function release → NPI → Function release

Additional function

ODOR HUMIDIFYING NPI FILTER CHECK — NO WATER

Filter Checking Function May remind users to clean or replace the filter after use for a certain period.

1 During the operation, if the filter checking indicator light is on, open the front panel and check the filter under the operation state of the air purifier.
2 Detailed information for the filter cleaning, refer to the page 34-35.

- Filter maintenance may vary depending on the environment.

OFF 98 % hr MANUAL AUTO SAND SLEEP SPEED DUST

Lock Function This is the function so that the button of the product will not be acted in unintended condition.

1 During the operation, if pressing the Lighting Button and Off timer Button for 3 seconds simultaneously, the locking setup or release will be realized.

• If buttons are not acted during the product operation, check the locking indicator of the display and release the locking setup.
• When the power cord is pulled out under the locking setup state, the locking setup will be released.

ON/OFF MODE SPEED NPI HUMIDIFYING TIMER

Additional function

OFF 80 % hr MANUAL AUTO SAND SLEEP SPEED DUST ODOR HUMIDIFYING NPI FILTER CHECK NO WATER

ON/OFF MODE SPEED NPI HUMIDIFYING TIMER 1

Power save setting This function sets the operation and cleanness indicator lamp off.

1 When the user presses the operation mode and fan speed button simultaneously while the product is operating, the power save function will be set or canceled.

- When the operation and cleanness indicator lamps are not turned while the product is operating, cancel the power save function.

Humidifier function This maintains the optimal level of humidity when the indoor air is dry.

Check the assembly condition of humidifier filter

1 Pull out the water tank.

Illustration of a hand inserting a plug into a cylindrical device (no text or symbols)

2 Pull out the tray.

* Carefully lift the tray up to pull it out without spilling the water.

Illustration of a hand operating a device with a handle and arrow indicator (no text or symbols)

3 After assembling both ends of the humidifier filter case to the tray hook accurately as shown in the picture, assemble the tray to the main unit.

* If the humidifier is not accurately assembled, it can cause abnormal noise and the humidifier may not work.

Diagram of a wind turbine blade with a cross symbol above it (no text or labels)

Mechanical assembly diagram showing a hand operating a gear with a magnified inset highlighting the component (no text or symbols present)

Humidifier function

Supplying water to water tank

1 Open the cap of the water tank and fill tap water to the water tank.

Caution

• Do not use anything other than tap water. It is difficult for bacteria to grow in tap water because it is treated with chlorine. But it is easy for fungus or bacteria to grow in other types of water (Well water, purified water, mineral water etc.).
• Do not use boiled water above 40^ , aroma oil, chemical, contaminant and air freshener. (It can cause malfunction or failure.)
• Because the water tank can fall over, always hold the water tank with two hands.

2 Close the water tank cap.

* Check whether the water is leaking.
* Always wipe out any moisture around the water tank.
* When the water tank is assembled without the packing on the cap, water can easily spill over to cause electric shock and product damage.

Caution

- When inserting the water tank, check whether the tray humidifier filter and float are assembled correctly. If not, it can limit the performance of the humidifier or cause product failure.

3 Assemble the water tank to the main unit.

* If the water tank is not assembled correctly, "dr" will be shown on the front display. Check whether the water tank is correctly assembled.
* "dr" stands for door and is displayed when the front panel is open.

Caution

- When loosening or tightening the water tank cap or when filling water to the water tank, hold the water tank with hand while loosening the part.

Humidifier function

Humidifier operation

1 Press the ON/OFF button.

2 Press the HUMIDIFYING button.

* The user cannot set to the specific level of humidity the user wants. When the humidifier operates, the mist may not be visible as it is humidified in fine particles.

3 Press the Fan speed button.

* The fan speed can be set in 3 levels for the humidifier function.

Caution

• If the water tank is empty, the no water lamp will be turned on and the buzzer will go off, but the operation will not stop.
• If the no water lamp is turned on during the operation, always turn off the power, separate the water tank, fill up the water tank and then assemble the water again for operation.
• Depending on the size and condition of the room where the air purifier is installed, the humidity may not be controlled at the appropriate level and kept higher. Humidity level is not appropriate - Operate at higher fan speed. Humidity level is higher than appropriate - Turn off the humidifier operation.

Room temperature Appropriate humidity level
~18°C 65%
18°C~24°C 60%
24°C~55%

ON/OFF ①

MODE SPEED NPI HUMIDIFYING TIMER ③ ②

Diagram of a mechanical device with directional arrows indicating motion or force (no text or symbols)

Cleaning

Tray, humidifier filter

1 Pull out the water tank.

2 Pull out the tray.

* Carefully lift the tray up to pull it out without spilling the water.

3 Separate the humidifier filter and tray lid.

4 Clean the tray and humidifier filter.

* After cleaning, always close the tray lid.
* If the humidifier function is not used for a long period of time, frequently dry the humidifier filter and wipe the water of the tray.

5 Assemble the humidifier filter.

* Assemble the humidifier filter by aligning the hook part and assembly part.

6 Assemble the tray and tank to the main unit.

* Assemble the tray and main unit so that there is no gap.

Illustration of a hand using a handheld device to interact with a small tool (no text or symbols visible)

Illustration of a hand operating a mechanical device with a gear and lever mechanism (no text or symbols)

Illustration of a hand inserting a small object into a device (no text or symbols visible)

Illustration of a mechanical device with hands operating it, no visible text or symbols

Two-step diagram showing a mechanical or architectural component with arrows indicating motion, no text or symbols present.

Exterior and dust sensor cleaning method

Exterior and dust sensor cleaning method

Wipe the exterior of the unit with a soft cloth using warm water and a mild detergent.

Caution

• Do not use harsh cleaners or very hot water. Do not wash in the dishwasher.
• Never pour water onto the unit; it could damage the internal components and create a shock and fire hazard.

Dust sensor cleaning method

The dust sensor is a device that senses the minute and large dust particles. The lens part must be periodically cleaned to maintain the performance.

1 In case of under operation, be sure to OFF the power supply.

* Open the front panel by pulling it forward.

2 Open the dust sensor cover. Wash the sensor filter and dry the filter properly.

3 Wipe the lens of the dust sensor with a cotton stick.

* After cleaning the lens, close the cover of the dust sensor in the reverse order.

- Clean the lens of the dust sensor once every 2 months. But the cleaning frequency can differ according to the using environment and time. So in an environment where it is dusty, clean more frequently.

Front Panel

Illustration of a faucet and water tap with a valve, showing mechanical components (no text or symbols)

Dust sensor lens

Exterior and dust sensor cleaning method

Air outlet cleaning method

1 Separate the air outlet cover by grabbing its protruded section and lifting it up.

Diagram of a computer keyboard inside a device casing (no text or symbols)

2 Clean the safety grille with the soft brush and the suction inlet of vacuum cleaner.

Illustration of a hand inserting a keyboard into a car (no text or symbols visible)

3 Wash the air outlet cover with soft brush in the running water.

Illustration of a hand using a faucet to clean or install a grid-patterned device (no text or symbols)

4 When assembling after the cleaning, settle the front section of the air outlet cover after inserting the cover rear section to suit to the product as shown in the right side figure.

Diagram of a computer keyboard inside a device (no text or symbols visible)

- Clean the air outlet once every 1\~2 months. But the cleaning frequency can differ according to the using environment and time. So in an environment where it is dusty, clean more frequently.

Filter cleaning and exchange

1 In case of under operation, be sure to OFF the power supply. Open the front panel by pulling it forward.
2 Remove the filter case by pulling it up.
3 Separate the pre filter from the filter case by pulling it forward.
4 Clean the disassembled filter in accordance with the filter cleaning method in the next page.

1 2 Front panel

Illustration of a hand inserting a device into a folder, showing internal components and a directional arrow (no text or symbols)

Illustration of a hand holding a clipboard next to a grid-patterned panel (no text or symbols visible)

4 Pre filter Deodorization filter Allergy filter HEPA filter

Caution

• For washable filter, please dry it completely in a shade without any dampness. (If it is not completely dried, it may cause failure or bad odor.)
• Replace filters when unable to remove all dirt on the filter. (After cleaning the filter, close the front panel. If not closed completely, the product will not work.)

Clean the inside of the product with the suction inlet of vacuum cleaner.

Mechanical assembly diagram showing a tool inserted into a component (no text or symbols visible)

Filter cleaning and exchange

Cleaning method of various filters

Type of filter	Classification	Washing & replacement cycle	Cleaning method
Pre filter	For washing	About a month washing Cycle	Clean the Pre-filter with a vacuum cleaner or a soft brush, and when the contamination is severe, use a neutral detergent and water to clean it off.	Refer to the Fig. 1.
Allergy filter	For washing	About a month Washing Cycle	Using a natural detergent and water to clean it off.	Refer to the Fig. 2.
Deodorization filter	For replacement	-	Replace it once a year.	Refer to the Fig. 3.
HEPA filter	For washing	Around 6 months washing cycle	To clean the HEPA filter, sock the filter in warm water with a mild detergent for 1 hour.Remove particles from the filter by shaking the water from the filter.Rinse the filter with warm water. Let air dry before placing filter back in the unit.	Refer to the Fig. 4.

1 Pre filter

2 Allergy filter

3 Deodorization filter HEPA

Illustration of a microplate with a pipette inserted, no text or symbols present

Filter cleaning and exchange

Cleaning method of tray and humidifier filter

Classification	Replacement cycle	Cleaning cycle	Cleaning method
Water tank	-	Daily	When filling the water tank, fill up to 1/3 and rinse it 4-5 times to wash it out.Dissolve 10g of neutral detergent or citric acid in 1L of warm water for 1-2 hours, and then use the cleaning brush to clean the parts. After cleaning, make sure to rinse sufficiently. (After cleaning the filter, close the front panel. If not closed completely, the product will not work.)Make sure to clean with a soft brush any white powder contents, around the filter or the case, which may cause a smell or noise.
Tray,tray lid	-	Daily	Rinse the water tank by shaking 4-5 times.	Wipe softly the humidifier filter with a brush, by holding the case.	When washing the humidifier filter case, be careful as it can be damaged.	After cleaning with neutral detergent or citric acid, rinse the filter with clean water.
Humidifierfilter	6-12 months	More than 1 time weekly

• Frequently wash the tray and humidifier filter. This will remove the scaling and you can use the product better sanitary condition.
• Do not disassemble the float of the tray. It can cause product failure.
  If the product is disassembled by impact, assemble in the order show in the right picture.
  • DO NOT take the humidifier filter case apart. This may result in deformation or damage in the filter or the case.
• In cleaning, wipe the filter GENTLY with a brush, or the fiber can be degraded.

Caution

• If the part is not rinsed sufficiently it can carry the odor of the detergent or citric acid, and can cause discoloration or deformation of the product.

• White chunk can be attached on the humidifier filter or the filter can be discolored to red or yellow during use. This is due to the impurity such as calcium included the tap water and is a normal phenomenon.

• Insert the float under this hook. hook into the hole.

3. Insert the hook on the other side of the float to the hole.

Air Purifier

Storage

1 Operate the air cleaner for more than 1 hour on a clear day and then press the On/Off button to stop the operation.

ON/OFF MODE ①

2 Unplug the power plug.

Power plug

3 Clean and protect the unit's mainframe. Cover the unit while storing for an extended period of time. When cleaning, wipe the main body with smooth cloth.

Illustration of two cartoon-style refrigerators with smiling faces and decorative sparkles (no text or symbols)

Otherwise, there is the worry of external damage due to the scratch etc.

Troubleshooting before calling for service

If abnormality is occurred, confirm the following items in advance before requesting to the customer care center.

Symptom Confirmation Procedures
Air Purifier will not start.	• Is the power plug unplugged? • Plug the power properly.
	• Whether a power cut occur? • Retrieve working when power cut finish.
	• Whether the front panel open or not?	• When the front panel opened, operation cannot be performed. Close it completely.
Turning off presetting cannot be performed.	• Turning off presetting cannot be performed.	• Perform the presetting once again by referring to the instruction manual.
Air Purifier function is not working well.	• Is the indoor contamination severe?	• Ventilate the area to use the product.
	• Are there many particles on the Pre-filter?	• Clean the Pre-filter.
	• Is the using location too wide?	• Use the product that fits the room size.(Avoid using it where it is ventilated well such as entrance, window etc.)
	• Are there any obstacles near the product? • Remove any obstacles.
	• Is the unit installed at a location where air flows freely?	• Move and install at a different location.
Action of buttons is not functioning well.	• Isn't there any foreign material like gloves in the hand?	• Isn't there any foreign material like gloves in the hand?
There is a weird sound from the product.	• Are the humidifier filter and tray assembled correctly?	• Assemble the humidifier filter hook and tray assembly part by aligning them.
	• Are there scaling built on the humidifier filter and tray?	• Clean the humidifier filter and tray with citric acid.
	• Are the humidifier filter case and cover correctly locked?	• Firmly lock the humidifier filter case and cover.
There is a “gulp” sound from the product.		• This is the sound of the water being supplied from the water tank to the tray. (This is not a problem.)

Troubleshooting before calling for service

Symptom Confirmation Procedures
The rate of water decreasing in the water tank is slowing or not decreasing at all.	• Is the humidifier filter correctly inserted in the tray? •	Assemble the humidifier filter hook and tray assembly part by aligning them.
	• Is there a high level of alien particles in the humidifier filter?	• Clean the humidifier filter.If the filter is too dirty, replace the filter.
	• Is it raining or is the indoor temperature too low? •	The water in the water tank is decreasing slowly because the humidifier amount is small.
Humidity level does not increase.	• Is the room too wide? • Use the product by referring to the applied area.
	• Is there water in the water tank? • Fill up water in the water tank.
	• Is there a high level of alien particles in the humidifier filter?	• Clean the humidifier filter.If the filter is too dirty, replace the filter.
Current humidity level displayed the product and that displayed on another hygrometer are different.		• Even within the same space, the level of humidity can vary based on the location of the product.
There is water in the water tank but [No water] lamp is displayed.	• Is the float hanging within the tray? • Pull out and clean the tray and remove any scaling or alien particles around the float.
[dr] is displayed on the front panel.	• Is the front panel open? • Close the front panel.
	• Is the water tank or tray assembled correctly in the main unit?	• Assemble the water tank or tray correctly in the main unit.

Troubleshooting before calling for service

Symptom Confirmation Procedures
Air outlet has an abnormal odor	Are you using the product where there is smoke or odor?	The air cleaning function can deteriorate in locations where there is a lot of smoke or odor. Ventilate the space and then use the air purifier.
	Are you using the product where there is a food smell?	For the food smell, it can be penetrated to the filter, therefore ventilate the space and then use the air purifier.
	Did you completely dry the washable HEPA filter?	If you use the washable filter without completely drying it, it can generate a weird smell. Therefore dry the filter completely before using it again.
	Is the water in the humidifier tray contaminated?	Clean the tray and water tank, and then refill the water.
Sensor indicator has problem.	Dust sensor keeps high level always. Clean the dust sensor or the filter. Due to the vapor particles generated during the cooking or boiling, the numerical value of the dust sensor can be raised.
	Odor sensor level goes up? LG air purifier is designed to detect polluted air, therefore odor sensor may not react to food odors. But deodorization filter will remove odor.
	Aren't the numerical values of the dust sensor, odor sensor and cleanness level continuously moving from side to side?	It is the Start-up function which prepares the unit for operation. During this two minutes period, the display will fluctuate to indicate that the unit is sensing the air quality in ther room.

Product Specification

The external dimension, design and product standard can change to improve the quality of the product.

Model Name PH-U459 Series
Power Supply 220-240	V ~ 50 Hz
Weight of Product 12	kg
Appearance Size(mm) 425 (Width) x 635 (Height) x 305 (Depth)
Power consumption 45	W

※ The rating on the manual displays a range for possible usage, so it could be different from the rating on the label, which displays the rating of the using region on the product.

MEMO

MEMO

Printed in Korea