LG MD19GQGE0 User manual

For safe and easy use of the product please read the manual before use.
This appliance is an indoor home appliance for use only at home.
Do not use this appliance for commercial, experimental or industrial purposes.
MFL68026060
OWNER’S MANUAL
DEHUMIDIFIER
Model : MD19GQGE0
Rev.02_081823
www.lg.com
Copyright © 2023 LG Electronics Inc. All Rights Reserved.
EN ENGLISH

SAFETY PRECAUTIONS
2
EN
SAFETY PRECAUTIONS
The following safety precautions are intended to prevent accidental property damage and personal
injury through safe and correct use of the product.
WARNING
Failure to follow the instructions could result in death or serious injury of the user.
CAUTION
Failure to follow the instructions could result in personal injury or property damage.
WARNING
When installing the dehumidier
•Do not damage, alter, excessively bend, twist, pull, pinch or heat the power cord.
If the power cord is damaged, request for repair to the service technician to prevent any risk.
If not, it can cause re, electri c chock or product failure.
•Do not use multiple-outlet adaptors with this dehumidier.
Excessive use of power could result in electric shock or re.
•Do not use the product if the outlet is damaged or loose.
Doing so could result in electric shock or re.
•If there is a gas leak, open the window for ventilation before using the dehumidier.
Failure to do this could result in explosion, re or burns.
•Do not disassemble, repair or modify the product.
Doing so could result in re or electric shock.
•Do not store or use ammable gases or materials near the dehumidier.
Doing so could result in re or product malfunction.
•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.
When using the dehumidier
•Push the power plug all the way into the wall outlet so that it is not loose.
A loose connection could result in re.
•Do not touch the power plug with wet hands.
Doing so could result in electric shock or injury.
•Do not modify or extend the power cord.
Doing so could result in re or electric shock.
•If the product makes a strange noise or emits a smell or smoke, pull the power plug out and
contact the service center.
Failure to do this could result in explosion, re or burns.
•Avoid placing the dehumidier or other heavy objects on top of the power cord.
Doing so could result in re or electric shock.

SAFETY PRECAUTIONS 3
EN
•Do not use water to clean the dehumidier.
Doing so could result in electric shock or malfunction.
•Keep the air inlet and outlet free from obstructions.
Failure to do this could result in poor performance or malfunction.
•Do not cover the power cord with a mat etc.
If heavy objects are placed on the mat, the power cord underneath could be damaged, causing re or
electric shock.
•Do not place combustion appliances directly in the path of the dehumidier’s airway.
Doing so could result in incomplete combustion or deformation by heat.
•Keep the product away from re.
Failure to do this could result in re.
•Do not use the product in places where it could be splashed by water.
Doing so could result in re or electric shock.
•Do not insert ngers, sticks etc. into the air inlet or outlet.
You could be injured by the high-speed fan.
•Only qualied personnel may clean the internal parts. Do not use corrosive detergents.
Doing so could result in product malfunction, re or electric shock.
•Unintended use of the appliance or damage to the housing may result in the escape of dangerous
UV-C radiation. UV-C radiation may, even in little doses, cause harm to the eyes and skin.
•This appliance contains a UV-C lamp.
•When the appliances are damaged or need to replaced, disconnect the power supply and contact
the service center.
•Do not operate UV-C lamp outside of the appliance.
•Read the maintenance instructions before opening the appliance.
•Appliances that are obviously damaged must not be operated.
•Do not replace the product UV-C lamp directly. If you need a replacement, please contact service
center.
CAUTION
When installing the dehumidier
•Do not use the product for purposes other than its intended use.
This product is not designed for preserving precision instruments, tableware or art works. The quality of
the items you are trying to preserve could deteriorate.
•Ventilate frequently.
Keep the area well ventilated, especially if you are using a combustion appliance as well. Inadequate
ventilation reduces the oxygen level in the air.
•Always hold the plug head when pulling the power plug.
Failure to do so could result in electric shock or injury.
•Do not use excessive force when pulling the extension hose.
Doing so could result in damage to or deformation of the hose.
•Do not use the product in places where chemicals are used.
Chemicals and solvents dissolved in the air in places such as hospitals, factories, laboratories and hair
salons could cause the product to become deformed, causing the dehumidied water to leak and wet
nearby household items, equipment etc.
•Turn off the dehumidier and pull out the power plug before cleaning.
If you do not do this, you could be injured by the high-speed fan.
•DO NOT operate the dehumidier without a lter.
Using the product without a lter could result in a reduced product lifespan, electric shock or injury.

SAFETY PRECAUTIONS
4
EN
When using the dehumidier
•Do not use the product for preserving animals/plants, precision instruments, art works etc.
It may cause property damage.
•Do not place vases or water jars on the dehumidier.
If the water ows into the dehumidier, it could result in re or electric shock.
•Product must be placed on safe and hard surface oor.
On weak surface oor, product is prone to vibration and noise.
Product must stand upright, otherwise it causes defect and water leakage.
•Turn off the dehumidier and empty the water tank before moving the dehumidier.
The water could overow from the tank, wetting household items or causing re or electric shock.
•Pull out the power plug if you will not be using the product for an extended period.
Failure to do this could result in product malfunction or re.
•Do not use the product in a very small space such as a closet.
Poor ventilation could result in overheating or re.
•Do not use wax, thinner or a strong detergent when cleaning. Wipe the product using a soft cloth.
Using inappropriate cleaning products could cause the product to become discolored or develop surface
aws.
•Do not use the product in direct sunlight or rain.
The product could overheat, causing re or electric shock.
•Do not touch the product with wet hands.
Doing so could result in electric shock. Position the product on a rm, stable surface.
•If the product is on an unstable surface, it may vibrate and make noise.
If the product is tilted or laid down, the dehumidied water could overow and the product could
malfunction.
•Do not keep the power cord tied up when using the product.
The power cord could overheat, resulting in re.
•Do not spray foreign substances or water into the sensor hole.
This could result in electric shock or malfunction.
•Do not use the product at unstable voltage for a long period of time.
The product may stop automatically to protect itself. This could result in electric shock or malfunction.
•Do not allow child to mount on the product.
It may cause serious injury and also product defect.

TABLE OF CONTENTS 5
EN
2SAFETY PRECAUTIONS
5TABLE OF CONTENTS
6QUICK START
7NAME OF EACH PART
7 Front side
7 Back side
8 Display Panel
9CHECKLIST BEFORE
USAGE
10 HOW TO USE
11 Smart Dehumidification
12 Jet Dehumidification
12 Silent Dehumidification
13 Spot Drying
14 Laundry Drying
15 Ionizer
15 Defrost Operation
15 Auto Clean
16 Bucket full
17 Off Timer
17 Timer function
18 Lock Function
18 Using UVnano function
18 Water tank light button method
19 How to empty water tank
20 How to Continuous Drainage Setup
21 Product registration through Wi-Fi
function
22 SMART FUNCTIONS
22 LG ThinQ Application
24 Smart Diagnosis
25 HOW TO CLEAN
25 How to clean the exterior and inlet of the
dehumidifier
25 How to clean water tank
26 How to clean Pre-Filter
27 HOW TO STORE
28 TROUBLESHOOTING
TIPS
28 Normal operating sounds of the product
30 PRODUCT
SPECIFICATIONS
TABLE OF CONTENTS
TABLE OF CONTENTS

QUICK START
6
EN
QUICK START
Dehumidier efciency varies depending on room
temperature and relative humidity.
•A lower temperature and lower relative humidity will reduce the moisture removal rate.
• The compressor operates in dehumidication mode only when the set humidity is lower than the room
humidity.
The operating temperature is 5°C to 32°C.
• The dehumidier cannot be used at 0°C or below because the dehumidied water could freeze.
• At 32°C or higher, the dehumidier may stop running automatically to protect itself from overheating.
The room temperature increases while the dehumidier is
running.
• This dehumidier does not have temperature control functions.
• The dehumidier generates heat while operating, raising the room temperature by about 2°C or 3°C
depending on the usage conditions (room air pressure and room size).
The dehumidication can be restarted after three minutes.
• If you attempt to restart the dehumidier immediately after stopping it, the compressor will start running
again after about three minutes for product safety reasons.

NAME OF EACH PART 7
EN
NAME OF EACH PART
Front side
Start/stop button Display
Water tank lid
Water tank
It stores dehumidied water.
Outlet
Louver
It adjusts
the direction
of the wind.
Back side
Pre-Filter
Hose cover
Rubber Cap
Power plug hanging part
Power plug
Inlet
It absorbs the air and
moisture in the room.
Wheels for moving
Components
❈The components are at the top part of the product packaging box.
❈The form of water tank may differ in each product.
Extension hose Shoes drying kit Laundry drying kit

NAME OF EACH PART
8
EN
Display Panel
Buttons to turn off Wi-Fi
Start/stop
Operation mode Humidity control Ionizer
UVnano
Off Timer
Wi-Fi
indicator lamp Bucket full indicator lamp
Timer indicator lamp
Wind strength control
Humidity &Off timer
display
Start/Stop button It is used to start and stop the product operation.
Operation mode
button
It is used to switch to Smart dehumidication mode, Jet dehumidication mode,
Silent dehumidication mode, Spot drying mode, and Laundry drying mode.
Smart dehumidication → Jet dehumidication → Silent dehumidication →
Spot drying → Laundry drying → Smart dehumidication
The Auto Clean function will turn on/off after depressing the button for 3
seconds or more.
Ionizer button It is used to remove harmful bacteria in the air. When you press the button for
3 seconds, lock function is operated.
Humidity control
button
It controls the desired humidity. (30%~70%)
Humidity control can be set in the units of 5%.
Wind strength
control button
It controls the wind strength. When you press the button for 3 seconds, Wi-Fi
pairing is operated.
Buttons to turn off
Wi-Fi
Register to the app, pressing and holding the Start/Stop button and the Wind
strength control button at the same time for more than 3 seconds turns off Wi-
Fi.
Off Timer button The product will be turned off after the set time.
When the button is pressed, it is increased by 1 hour each time, and you can
set up to 8 hours.
Operation mode lamp It displays the currently set operation mode.
Humidity & Off timer
display
It displays the current humidity and set humidity. When Off timer is set, it
displays the Off timer time, and it automatically displays the current humidity
after completing the setting.
Wi-Fi indicator lamp It is displayed when Wi-Fi function is set.
Timer indicator lamp It is displayed when timer is set in LG ThinQ app.
Set indicator lamp It is displayed when humidity is set.
Desired humidity is displayed with "Set" light, and the light is turned off when
showing current humidity.
UVnano button Keep the fan clean.
Water tank light
button
Pressing and holding this button for 3 seconds or longer will turn on the LED
light of the bucket.

CHECKLIST BEFORE USAGE 9
EN
CHECKLIST BEFORE USAGE
Dehumidication amount changes according to indoor temperature and relative
humidity.
- If the temperature or relative humidity is low, dehumidication amount is decreased.
- Dehumidication is performed with compressor operation only when the desired humidity is lower than
the current humidity.
The product can operate in the temperature boundary of 5°C~32°C.
- At 0°C or less, dehumidied water will freeze, and dehumidication cannot be performed.
- If it is over 32°C, the temperature inside the dehumidier will rise, and there will be cases of stopping the
operation by protective device activation to avoid excessive usage.
When the dehumidier is under operation, the indoor temperature will rise.
- Dehumidier does not have a cooling/heating function.
- Heat is generated during the operation, so the temperature may be increased by about 2°C~3°C
according to the usage conditions (indoor temperature, size of the room).
Operation will restart after 3 minutes.
- If it is restarted right after the stop, the compressor will start about 3 minutes after to protect the product.
It automatically protects the product during the continuous operation.
-If it is operated for 24 hours or more continuously, the compressor will stop automatically to protect the
product, and it will restart after 1 hour.
Please have gap of 30cm or more from the wall.
- If it is not ventilated well, the air suction performance will be degraded.
There may be water remaining in the drain water tank at the rst time usage.
- There may be water remaining in the drain water tank by the product outgoing inspection to check the
normal operation of the product. It is not a failure.

HOW TO USE
10
EN
HOW TO USE
Push start/stop button.
- The louver opens and smart dehumidication starts.
But, if no other button is pressed (Mode, Speed etc.), the desired humidity will change to 50% after 30
minutes of continuous operation.
-The current humidity is displayed on The humidity & Off timer display.
Press operation mode button to select desired operation mode among smart
dehumidication, jet dehumidication, silent dehumidication, spot drying, and
laundry drying mode.
-The selected operation indicator lamp is lighted.
-The selected operation mode starts after 3 seconds.
Press Humidity Control ∧/∨button to change humidity.
- Desired humidity can be set to 30 ↔ 35 ↔ 40 ↔ 45 ↔ 50 ↔ 55 ↔ 60 ↔ 65 ↔ 70.
Humidity can be set with the units of 5%.
-During the humidity setting, desired humidity is displayed on the humidity display part, and the current
humidity is displayed after about 5 seconds.
-Current humidity is displayed in the units of 5% from 25~90%.
If it is less than 25%, it is displayed as 25%, and if it is 90% or more, it is displayed as 90%.
Press Wind Strength Control button to change wind amount.
You can set the wind amount to low or high wind.