LG LP0821GSSM User manual

www.lg.com
Copyright © 2020 LG Electronics Inc. All Rights Reserved.
OWNER’S MANUAL
AIR
CONDITIONER
Read this owner’s manual thoroughly before operating the appliance
and keep it handy for reference at all times.
TYPE: PORTABLE AIR CONDITIONER
LP0821GSSM
LP1021BSSM
LP1021BHSM
Rev.02
ENGLISH ESPAÑOL
Caution, risk of fire

TABLE OF CONTENTS
18 OPERATION
21 SMART FUNCTIONS
21 LG ThinQ Application (On Some Models)
18 Control Panel and Remote Control
3 SAFETY INSTRUCTIONS
3 IMPORTANT SAFETY INSTRUCTIONS
8 PRODUCT OVERVIEW
8 Key Parts and Components
9 INSTALLATION
9 Electrical Information
10 Before Installing the Air Conditioner
10 Wireless Remote Control
11 Contents of Installation Kit
11 Selection of Installation Location
12 Assembling the Flexible Vent Hose Set
12 Attaching the Flexible Vent Hose Set
13 Window Vent Panel and Extensions
14 Installing Vent Panels
16 Drain Hose Installation for Heating
(On Some Models)
17 Garden Hose Installation for Dehumidifying
(Dry Mode Only)
23 MAINTENANCE
23 Emptying the Water Collection Tank
23 Cleaning the Case
23 Cleaning the Air Filter
24 TROUBLESHOOTING
24 Before Calling for Service
27 WARRANTY
29 ARBITRATION NOTICE
27 WARRANTY
TABLE OF CONTENTS
2

SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always
read and follow all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or injure you and others.
All safety messages will follow the safety alert symbol and either the word WARNING or
CAUTION.
These words mean:
WARNING
You may be killed or seriously injured if you do not follow instructions.
CAUTION
You may be injured or cause damage to the product if you do not follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce
the chance of injury, and tell you what may happen if the instructions are not followed.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
injury to persons when using this product, follow basic precautions,
including the following:
INSTALLATION
Before use, the appliance must be properly installed as described in this manual.
Contact the authorized service technician for repair or maintenance of this unit.
ENGLISH
SAFETY INSTRUCTIONS 3

When the power cord is to be replaced, replacement work shall be performed by authorized
personnel only using only genuine replacement parts.
.
Connect to a properly rated, protected, and sized power circuit to avoid electrical overload.
Always plug into a grounded outlet.
Do not under any circumstances, cut or remove the third (ground) prong from the power cord.
When installing or moving the appliance, be careful not to pinch, crush, or damage the power
cord.
Plug in the power plug properly.
Do not modify or extend the power cord.
Do not start/stop operation by plugging/unplugging the power cord.
Use a dedicated circuit.
Do not disassemble or modify the product.
Adhere to all industry recommended safety procedures including the use of long-sleeved gloves
and safety glasses.
Use care when unpacking and installing. The edges of the product may be sharp.
Disconnect the power cord or circuit breaker before installing or servicing the appliance.
Keep packaging materials out of the reach of children. These materials can pose a suffocation
risk to children.
Store and install the product where it will not be exposed to temperatures below freezing or
exposed to outdoor weather conditions.
other appliance.
OPERATION
Use this appliance only for its intended purpose.
Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled,
or has missing or broken parts, including a damaged cord or plug.
Repair or immediately replace all power cords that have become frayed or otherwise damaged.
Do not use a cord that shows cracks or abrasion damage along its length or at either end.
Do not run cord under carpets or mats where it could be stepped on and damaged.
Keep the cord out from under heavy objects like tables or chairs.
Do not place the power cord near a heat source.
Do not use an adaptor or plug the product into a shared outlet.
Do not tamper with controls.
If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance,
unplug it immediately, and contact an LG Electronics Customer Information Center.
straight out from the outlet.
Do not grasp the power cord or touch the appliance controls with wet hands.
The air conditioner is not intended for use by young children or invalids without supervision.
Young children should be supervised to ensure that they do not play with the air conditioner.
SAFETY INSTRUCTIONS
4

If water enters the product, turn off the power at the main circuit, then unplug the product and call
for service.
If the product has been submerged, contact the LG Electronics Customer Information Center for
instructions before resuming use.
Unplug the product if it will not be used for long periods.
Unplug the product before cleaning.
In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a
window or door to ventilate the area immediately.
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 the use of the appliance by a person responsible for
their safety.
To clean the interior, contact the LG Electronics Customer Information Center or a dealer.
Using harsh detergents may cause corrosion or damage to the unit.
Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage,
GROUNDING INSTRUCTIONS
The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with
a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock.
receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND)
PRONG FROM THE POWER PLUG.
Have the wall receptacle and circuit checked by a qualified electrician to make sure the
- Situations when the appliance will be disconnected occasionally; Because of potential safety
hazards, we strongly discourage the use of an adapter plug. However, if you wish to use an
adapter, a TEMPORARY CONNECTION may be made. Use UL-listed adapter, available from
most local hardware stores.
The large slot in the adapter must be aligned with the large slot in the receptacle to assure a
proper polarity connection.
Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the
appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded
to make sure the receptacle is properly grounded.
Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter
ground terminal might break. Do not use the appliance with a broken adapter plug.
- Situations when the appliance will be disconnected often; Do not use an adapter plug in these
situations. Unplugging the power cord frequently can lead to an eventual breakage of the
ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet
instead.
ENGLISH
SAFETY INSTRUCTIONS 5

CAUTION
To reduce the risk of minor or moderate injury to persons, malfunction, or
damage to the product or property when using this product, follow basic
precautions, including the following:
INSTALLATION
Take care when installing the product that exhaust or condensation does not damage nearby
property.
Follow installation instructions exactly to avoid excessive vibration or water leakage.
OPERATION
This appliance is not intended for use as a precision refrigeration system. Do not use it for special
purposes such as maintaining pets, food, precision machinery, or art objects.
When installing or moving the appliance, be careful not to pinch, crush, or damage the power
cord.
Make sure the air inlet and outlet are free from obstructions.
Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents.
Do not step on or place heavy objects on top of the appliance.
Do not drink water drained from the appliance.
are used simultaneously.
Remove the batteries if the remote control is not to be used for an extended period of time.
Never mix different types of batteries, or old and new batteries for the remote control.
consult a doctor.
Do not recharge or disassemble the batteries.
MAINTENANCE
Never spray the product with water or use strong cleaning agents or solvents when cleaning the
air conditioner. Use a soft cloth to avoid scratching the exterior.
Do not install the unit in potentially explosive atmospheres.
SAFETY INSTRUCTIONS
6

7
ENGLISH
SAFETY INSTRUCTIONS
Caution, risk of fire
- The maximum refrigerant charge amount. (Refer to nameplate marking refrigerant amount.)
- The appliance shall be suitable stored to prevent mechanical damage from occurring.

ENGLISH
PRODUCT OVERVIEW
temperature, and
using the bottom drain port.
6
9
9
WIRELESS REMOTE CONTROL
Key Parts and Components
The remote control allows you to adjust the temperature
and operate most functions of the air conditioner from
across the room.
NOTE
Features may change depending on model.
7
8
Connect a garden hose for continuous drainage when
running the air conditioner in Dry mode.
7
9
CONTINUOUS DRAIN PORT
8
10
PUMP DRAIN PORT (On Some Models)
Connect the provided pump drain hose for drainage when
running the air conditioner in Heat mode.
11 PUMP DRAIN HOSE (On Some Models)
Connect to the pump drain port for pump drainage when running the
air conditioner in Heat mode. See Drain Hose Installation for Heating.
10
11
8PRODUCT OVERVIEW

INSTALLATION
Electrical Information
Power cord may include a current interrupter
device. TEST and RESET buttons are provided
on the plug case. The device should be tested on
TEST button
and then the RESET button. If the TEST button
does not trip or if the RESET button will not stay
engaged, discontinue use of the air conditioner
for 120 V
Use Wall Receptacle Power Supply
Use 15 A, time-
delay fuse or 15 A
circuit breaker.
Standard 120V , 3-wire
grounding receptacle rated
15A / 120 VAC / 60 Hz
RESET
TEST
WARNING
This appliance should be installed in
accordance with the National Electrical
Code.
Use of extension cords could cause serious
injury or death.
- Do not use an extension cord with this
portable air conditioner.
- Do not use surge protectors or multi-outlet
adapters with this portable air conditioner.
Never push the TEST button during
operation. Doing so can damage the plug.
- Do not remove, modify, or immerse this
plug. If this device trips, the cause should
be corrected before further use.
CAUTION
The conductors inside this cord are
surrounded by shields, which monitor
leakage current. These shields are not
grounded. Periodically examine the cord
for any damage. Do not use this product
in the event the shields become exposed.
Avoid shock hazard. This unit cannot be
user-serviced. Do not open the tamper-
resistant sealed portion. All warranties and
performance will be voided. This unit is not
intended to be used as an ON/OFF switch.
ENGLISH
INSTALLATION 9

9
INSTALLATION
Before Installing
the Air Conditioner
Doing so
are
they do
place the appliance near
Wireless Remote Control
Inserting Batteries
If the display screen of the remote control begins
to fade, replace the batteries. Insert AAA (1.5 V)
batteries before using the remote control.
1Remove the cover on the back of the
remote control.
2Insert the new batteries and make sure that
the + and - terminals of the batteries are
installed correctly.
NOTE
New batteries are supplied with the air
conditioner for use in the remote control.
Do not use a rechargeable battery. Make sure
that the battery is new.
In order to prevent discharge, remove the
battery from the remote control if the air
conditioner is not going to be used for an
extended period of time.
Keep the remote control away from extremely
hot or humid places.
To maintain optimal operation of the remote
control, the remote sensor should not be
exposed to direct sunlight.
The remote control will not work properly if the
unit is exposed to direct light or there is any
obstacle between the unit and the remote
controller.
INSTALLATION
10
OPERATING TEMPERATURE
Cooling : 70 °F (21 °C) ~ 95 °F (35 °C), 45%RH ~ 78%RH
Heating : 68 °F (20 °C) ~ 80 °F (26.7 °C), 38%RH ~ 57%RH

20″
NOTE
The length of the flexible vent hose is specially designed according to the specification of this product.
Do not replace or extend it with a hose that is not specifically designed for use with this product as this
could cause malfunction.
Contents of Installation Kit
Selection of Installation Location
2 Security brackets
2 Long adhesive
foam seals
1 Non-adhesive
foam seal
4 Type A screws (1/2“)
1 Drain hose
(on some models)
1 Lock nut
(on some models)
2 Short adhesive
foam seals
4 Type B screws (3/4“) 1 Type C screw (5/16“)
1 Panel A (18″)
Window vent panel
1 Panel B (9″)
Extension panel
1 Panel C (17″)
Extension panel
1 Panel D (17″)
Extension panel
Flexible vent hose set
20″ 20″
20″
INSTALLATION 11
ENGLISH
1 Diffuser 1 Flexible vent hose 1 Mounting Bracket
Round Type
OR
Square Type
++

Assembling the Flexible Vent Hose Set
Attaching the Flexible Vent Hose Set
Pull evenly on the folds to extend one end of the
flexible vent hose.
1
Insert the mounting bracket on to the end of the
vent hose, aligning the mounting bracket threads
with the notch on the flexible vent hose.
2
Turn the mounting bracket counterclockwise
though 5 rotations or until the flexible vent hose
is firmly attached.
3
Repeat the process to attach the diffuser to the
other end of the flexible vent hose.
4
Lock
Lock
Unlock
Unlock
• Round Type
Insert the mounting bracket and
rotate it to lock it in place.
• Square Type
Insert the mounting bracket and
slide it to lock it in place.
Lock
INSTALLATION
12

Window Vent Panel and Extensions
The window installation kit allows you to install the air conditioner in most vertical-sliding windows 18″ to 50″ wide,
or horizontal-sliding windows from 18″ to 50″ high.
Fig. a Fig. b
Fig. c Fig. d
Window Installation Kit
(Includes 1 window vent panel and 3 extension panels)
Panel A (18″)
Panel B (9″)
Panel C (17″) Panel D (17″)
18″
18″
27″ – 34″
Panel D
Panel D
Panel A
35″ – 50″
35″ – 50″
Panel D
Panel D
Panel C
Panel C
27″ – 34″
19″ – 25″
19″ – 25″
3 Extension Panels
1 Window Vent Panel
Panel
Window opening
A
18″
B
9″
C
17″
D
17″ Fig.
18″ √
19″ - 26″ √ √
27″ - 34″ √
35″ - 50″ √ √
Screw A
√
1. Select the panels required based on the
window opening, as shown above.
2. For longer window openings, assemble and
adjust the panels to fit the window opening.
Use type A screws (included) to fix the panels
together at the proper length.
For window openings from 19″ to 25″, use the
window vent panel (Panel A) and extension
Panel B.
For an 18″ window opening, use the window
vent panel (Panel A) by itself.
For window openings from 35″ to 50″, use the
window vent panel (Panel A) and extension
Panel C and Panel D.
For window openings from 27″ to 34″, use the
window vent panel (Panel A) and extension
Panel D.
a
b
c
d
√
INSTALLATION 13
ENGLISH

Installing Vent Panels
Attach the long adhesive foam weather
seals to the top and bottom sides of the
window vent panel assembly. Attach the
short foam weather seals to the right and left
sides of the panel assembly.
(Attaching the foam weather seals to the
panel assembly rather than the window sash
and frame makes for easier cleanup when
removing the panel assembly.)
Insert the panel assembly in the bottom sash
channel. Use care when installing the
assembly, which will now fit very tightly in
the opening. Close the sash tightly against
the top of the panel assembly.
Measure and cut the included non-adhesive
foam to fit the window opening. Stuff it
between the window sashes to prevent air
and insects from getting into the room.
Non-adhesive
foam seal
Long adhesive foam seal
↓
Short adhesive
foam seal
↓
Short adhesive
foam seal
↓
↑
Long adhesive foam seal
If needed, install the included security
bracket with type B screws.
INSTALLATION
14

5 6
Slot
(1) Insert
Type C screw
(2) Slide
Align the tabs on the diffuser with the slots in
the vent panel. Insert the diffuser into the
opening in the vent panel and slide the
diffuser all the way over to lock the tabs in
place. Position the diffuser with the round
opening above the bottom of the vent panel
to avoid interference from the window sill.
Insert the type C screw in the hole in the
diffuser to prevent the diffuser from sliding
out of the vent opening. If the diffuser is
positioned correctly, the screw should just
clear the edge of the opening in the vent
panel. You should not have to drill through
the vent panel.
NOTE
Best positioning Inverted U shape
• For a tighter seal, use "no residue" duct tape (not provided) to seal any gaps around the installed
panel assembly, around the diffuser, and between the sashes.
• For best results, keep the vent hose as short and straight as possible. However, shape the diffuser
end of the vent hose into an inverted U shape just inside the window to allow any rain or
condensation to drain out the window.
INSTALLATION 15
ENGLISH

Drain Hose Installation for Heating (On Some Models)
Indoor Drainage
CAUTION
• If you use the Heat mode, you must install the drain hose. If only the Cool mode is used, the
drain hose is not needed.
• If the outside temperature is at or near freezing 32 °F (0 °C) follow the indoor drainage
instructions.
• When the weather is above freezing, the unit can be set up to drain to the outside. Make sure the
outlet of the hose is aimed away from nearby surfaces that could be stained or damaged by the
draining water.
1. To attach the drain hose, insert the connector into the pump drain port at the back of the unit until it
snaps into place.
2. Place the other end of the drain hose in a bucket that holds at least 28 ounces. Remember to
check and empty the bucket frequently to avoid overflows.
3. To detach the drain hose from the product, push the outer ring of the pump drain port in and pull
the connector out.
NOTE
• Inserting the drain hose into the unit will automatically activate the drain function.
INSTALLATION
16

Outdoor Drainage
Garden Hose Installation for Dehumidifying (Dry Mode Only)
1. To attach the drain hose, insert the connector into the pump drain port at the back of the unit until it
snaps into place.
2. Unscrew the nut at the bottom of the locking nut. Insert the locking nut into the hole in the front of
the window vent panel and reassemble the nut. Unscrew the top part of the locking nut until you
can easily insert the drain hose through the opening.
3. Make sure to insert the drain hose at least 8 inches (20 cm).
4. Turn the top of the locking nut to tighten it and secure the drain hose in place.
5. To detach the drain hose from the product, push the outer ring of the pump drain port in and pull
the connector out.
1. Remove the drain plug when using the Dry (dehumidifying) mode.
2. Install a 1/2" (12.7 mm) inside diameter garden hose (not provided) into the continuous drain port
and place the open end of the hose over a floor drain or bucket.
NOTE
• Inserting the drain hose in the unit will automatically activate the drain function.
NOTE
• Install the garden hose when you need dehumidification in high humidity.
• This product has a self-evaporative system. The condensing water will be recycled to cool the condenser.
This not only improves cooling efficiency, but also saves energy for you.
More than 8″
INSTALLATION 17
ENGLISH

OPERATION
Control Panel and Remote Control
8 9 6
54321
NOTE
• Available functions may vary by model.
• The number and location of LEDs on the control panel may vary by model.
OPERATION
18
8 9 6
532 41
1
5
42
7
6
3

Temperature Control ∧/∨
In Cool, Dry and Heat mode, the ∧/∨
buttons adjust the set temperature up to
86 °F (30 °C) or down to 60 °F (16 °C), in
one-degree increments.
NOTE
• To switch the temperature units on the
display between Fahrenheit (°F) and
Celsius (°C), press and hold the ∧and
∨buttons on the control panel at the
same time for 5 seconds.
3
Fan Speed
Press repeatedly to toggle the fan speed
between High and Low settings. An LED
illuminates to indicate the selected fan
speed. The fan speed can be changed in
the Cool, Fan, and Heat modes. The fan
speed is preset in the Dry mode. After
pressing the button, there is a brief delay
before the fan motor changes speed.
4
Timer
Delay ON - When the air conditioner is off,
set it to automatically turn on from 1 to 24
hours later, at its previous mode and fan
settings.
Delay OFF - When the air conditioner is
on, set it to automatically turn off from 1 to
24 hours later.
NOTE
• Each press of the Timer button advances
the timer by 1 hour. Once you have
finished setting the Delay OFF Timer, the
display returns to the temperature setting
after a short delay.
• To cancel the Timer function, press the
Timer button on control panel.
• Press and hold the Timer button on the
control panel for 3 seconds to set Auto
Swing.
5
19
OPERATION
ENGLISH
1
2
Power ( )
Turns the air conditioner on and off.
A chime sounds to confirm you have turned
it on or off.
Mode
Press this button repeatedly to toggle
through and select the operating mode.
Modes include Cool, Dry (dehumidify), Fan,
and Heat. An LED illuminates to indicate the
selected mode. The default mode is Cool.
Cool ( )
Compressor runs and cools the room. Use
the ∧/∨and Fan Speed buttons to set the
desired temperature and fan speed.
Dry ( )
Use the Dry mode to remove humidity from
the room without additional cooling. The fan
speed is preset and cannot be adjusted.
Fan ( )
Fan circulates air but compressor does not
run. Use the Fan Speed button to set the
desired fan speed to either High or Low.
Heat ( )
Compressor runs and heats the room. Use
the ∧/∨and Fan Speed buttons to set the
desired temperature and fan speed.
NOTE
• To protect the compressor, the fan and
compressor may stop for a short time if
you switch modes from Cool to Heat or
vice versa.

20 OPERATION
Removing Condensation
Buildup
Condensation can build up inside the unit
when the Cool and Dry modes are used.
The fan can be set to run for a short period
after the product is turned off to help keep
the inside of the appliance dry. This option is
off by default.
Turning Condensation Fan On
1 Turn on the product, set it to Cool mode
and let it run for at least 10 seconds.
2 Press and hold the Mode and Fan Speed
buttons on control panel for 3 seconds
until On appears in the display.
3 The condensation fan is now turned on.
When the appliance is turned off, Co
appears in the display and the fan will
continue to run for 10 minutes. The
appliance will then shut down as normal.
Turning Condensation Fan Off
1 When the product is powered on, press
and hold the Mode and Fan Speed
buttons on control panel for 3 seconds
until OF appears in the display.
2 The condensation fan is now turned off.
The appliance will shut down
immediately when it is turned off.
NOTE
• Some functions cannot be used while this
option is turned on.
10
Auto Swing
This function automatically moves the
louvers to adjust the direction of the air
flow. Press the Auto Swing button
repeatedly to select the desired direction.
NOTE
• To switch the temperature units on the
display between Fahrenheit (°F) and
Celsius (°C), press and hold the Swing
button on the remote control for 5
seconds.
6
Light
Sets the display screen brightness:
On → Dim → Off
NOTE
• Press and hold the Mode button on the
control panel for 3 seconds to adjust the
brightness.
7
Clean Filter
The Clean Filter LED lights up to notify
you that the filter needs to be cleaned.
After cleaning the filter, press and hold the
∨button on the control panel for 3
seconds to turn off the Clean Filter light.
NOTE
• The filter reset must be done using the
control panel, not the remote control.
• This feature is a reminder to clean the air
filter for more efficient operation. The
LED light turns on after 250 hours of
operation.
8
Wi-Fi
Enables connection of the air conditioner
to the home Wi-Fi.
To connect Wi-Fi, press the Fan Speed
button on the control panel for 3 seconds.
9