Operations Manual
TYPE : WALL MOUNTED
Applied Models :
M24YJ
M30YJ
M36YJ
ENGLISH
FRANÇAIS ESPAÑOL
960-912-04
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2
TIPS FOR SAVING ENERGY
ENGLISH
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
• Do not cool excessively indoors. This may be harmful for your health and may consume
more electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air con-
ditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may
block the air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
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IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product
WARNING
It can result in serious injury or death when the directions are ignored
CAUTION
It can result in minor injury or product damage when the directions are ignored
WARNING
• Installation or repairs made by unqualified persons can result in hazards to you and others.
• Installation MUST conform with local building codes or, in the absence of local codes, with the
Nation Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.
• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment mal-
function, property damage, personal injury and/or death.
Power
• Unplug the power plug immediately in the event of a blackout or thunderstorm. Failure to do
so may result in fire or electric shock.
• Always use a power plug and socket with a ground terminal. Failure to do so may result in
electric shock or product failure.
• Install a dedicated electric outlet and circuit breaker before you use the air conditioner. Failure
to do so may result in electric shock or product failure.
• Do not connect the ground wire to a gas pipe, a lightning rod or a telephone ground wire. It
may result in electric shock or product failure.
• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner.
Failure to do so may result in electric shock or product failure.
• Make sure to check that the power cable plug is not dirty, loose or broken and then only insert
the plug completely. It may result in electric shock or product failure.
• Do not modify or extend the power cable. If the power cable or cord has scratches or skin
peeled off or deteriorated then it must be replaced. It may result in fire or electric shock.
• Don’t use a power cord, a plug or a loose socket which is damaged. It may result in fire or
electric shock.
• Do not use a damaged power cord or plug. It may result in electric shock or product failure.
• Do not touch, operate or repair the air conditioner with wet hands. It may result in electric
shock or product failure.
• Make sure that the power plug is not damaged when you move the air conditioner. Failure to
doc so may result in electric shock or product failure.
!
!
!
3
ENGLISH
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READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
• Do not place a heater or other heating appliances near the power cable. It may result in fire,
electric shock, or product failure.
• Make sure that the power cord is not pulled or damaged while the air conditioner is operating.
Failure to do so may result in fire, electric shock, or product failure.
• Do not place any objects on the power cord. It may result in electric shock or product failure.
Installation
• Do not install the air conditioner on an unstable surface or where there may be a danger of it falling.
It may result in death, serious injury, or product failure.
• Contact an authorized service center when you install or relocate the air conditioner. Failure to do
so may result in serious injury or product failure.
• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly
so that there is no force pulling the cable from the connection terminals. Improper or loose connec-
tions can cause heat generation or fire.
• Install the panel and the cover of the control box safely. Failure to do so may result in explosion or
fire.
• Do not install the air conditioner near a place with a danger of explosion or fire. It may result in
explosion or fire.
• Make sure that the pipe and the power cable that connect the indoor unit and the outdoor unit are
not pulled tight when you install the air conditioner. Failure to do so may result in electric shock or
product failure.
• Do not mix air or gas in the system except for the specific refrigerant. If air enters the refrigerant
system, it may result in an excessively high pressure that causes injury or damage to the equip-
ment.
Use
• Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the
equipment. It may result in death, serious injury, or product failure.
• Do not pull the power cord when you remove the power plug. It may result in death or electric
shock.
• Discard the batteries where there is no danger of fire. Failure to do so may result in explosion or
fire.
• Contact an authorized service center when the air conditioner is submerged into water due to flood-
ing. Failure to do so may result in explosion or fire.
• Only use components that are approved by the manufacturer and do not repair or modify them.
Failure to do so may result in electric shock or product failure.
• Only use the refrigerant specified on the air conditioner label. It may result in explosion or fire.
• Do not allow water to run into the air conditioner. It may result in explosion or fire.
• Do not leave flammable substances such as gasoline, benzene and thinner near the air conditioner.
It may result in explosion or fire.
• Do not use the air conditioner for an extended period of time in a small place without ventilation.
Ventilate the place regularly. Failure to do so may result in explosion or fire.
• Do not touch the electrostatic filter after opening the front grille. Failure to do so may result in elec-
tric shock or product failure.
• For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
Harsh detergent may also cause failure of product, fire, or electronic shock.
4
IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
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IMPORTANT SAFETY INSTRUCTIONS
5
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
• Unplug the power plug if there is a noise, smell or smoke coming from the air conditioner.
Failure to do so may result in explosion or fire.
• Make sure to ventilate sufficiently when this air conditioner and a heating appliance such as a
heater are used simultaneously. Failure to do so may result in fire, serious injury, or product
failure.
• Make sure that children do not climb up the outdoor unit or impact it. Failure to do so may
result in death or product failure.
• Do not turn on or off the air conditioner by plugging in or unplugging the power plug. It may
result in fire or electric shock.
• When there is a gas leak, ventilate sufficiently before using the air conditioner again. Failure
to do so may result in explosion or fire.
• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is
a consumer air conditioner, not a precision refrigeration system. It may result in death, fire or
electric shock.
• Do not block the inlet or outlet of air flow. It may result in explosion or product failure.
• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is
operating. It may result in electric shock.
• Do not expose people, animals or plants to the cold or hot wind from the air conditioner. It
may result in serious injury.
• Do not drink the water drained from the air conditioner. It may result in serious health compli-
cations.
Maintenance
• Turn the main power off and unplug the power plug when you clean or repair the air condition-
er. Failure to do so may result in death, serious injury, or product failure.
CAUTION
Installation
• Do not install the air conditioner where there is direct sunlight. It may result in product failure.
• Safely dispose of packing materials such as screws, nails or batteries in a packing bag after installa-
tion or repair. It may result in serious injury.
• Do not install the air conditioner where it will be exposed to sea wind (salt spray) directly. It may
result in product failure.
• Install the drain hose properly for smooth drainage of condensed water. Failure to do so may result
in product failure.
• Install the air conditioner where the noise from the outdoor unit or the exhaust gas will not inconven-
ience the neighbors. Failure to do so may result in conflict between neighbors.
• Be cautious when you unpack or install the air conditioner. Failure to do so may result in serious
injury or product failure.
• Do not touch the refrigerant leakage during installation or repair. It may result in product failure.
• When transporting the equipment, there should be at least 2 or more people, or a forklift. It may
result in serious injury.
!
ENGLISH
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IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
Use
• Remove the batteries when the remote control is not in use for an extended period of time.
Failure to do so may result in product failure.
• Make sure that the filter is installed before you operate the air conditioner. Failure to do so may
result in product failure.
• Unplug the power plug when the air conditioner is not used for an extended period of time.
Failure to do so may result in product failure.
• Make sure to check if there is a refrigerant leak after you install or repair the air conditioner.
Failure to do so may result in product failure.
• Do not place any objects on the air conditioner. It may result in product failure.
• If there is a refrigerant leak during the installation of the air conditioner, ventilate the area immedi-
ately. Failure to do so may result in serious injury or product failure.
• Follow the standards of the corresponding region or country for handling the refrigerant and the air
conditioner, and for disassembling the air conditioner. Failure to do so may result in product failure.
• Do not mix the batteries for the remote control with other types of batteries or mix new batteries with
used batteries. Failure to do so may result in product failure.
• Do not recharge or disassemble the batteries. Failure to do so may result in explosion, fire or seri-
ous injury.
• Do not dispose of the batteries in fire. It may result in explosion or fire.
• Stop using the remote control if there is a battery fluid leak. If your cloth or skin is exposed to the
battery fluid from a leak, wash it off with clean water. Failure to do so may result in serious injury.
• If you swallow the battery fluid from a leak, wash out the inside of your mouth thoroughly and then
consult a doctor. Failure to do so may result in serious health complications.
• Do not let the air conditioner run for a long time when the humidity is very high or when a door or
window has been left open. Failure to do so may result in product failure.
• Do not use the product for special purposes,such as preserving foods, works of art, etc. It is a con-
sumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of proper-
ty.
Maintenance
• Do not use strong cleaning agents or solvents when you clean the air conditioner, or spray water.
Use a smooth cloth. It may result in serious injury or product failure.
• Never touch the metal parts of the air conditioner when you remove the air filter. It may result in
serious injury or product failure.
• Use a sturdy stool or ladder when you clean, maintain or repair the air conditioner at a height.
Failure to do so may result in serious injury or product failure.
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TABLE OF CONTENTS
7
ENGLISH
TABLE OF CONTENTS
2
TIPS FOR SAVING ENERGY
3 IMPORTANT SAFETY
INSTRUCTIONS
8 BEFORE USE
8 Components
9 Using the remote control
10 - Inserting batteries
10 - Installing the remote control holder
11 BASIC FUNCTIONS
11 Cooling your room
11 Heating your room
11 Removing humidity
12 Airing your room
12 Adjusting the fan speed
12 Adjusting the air flow direction
12 Setting the timer
12 - Setting the current time
13 - Turning on the air conditioner
automatically at a set time
13 - Turning off the air conditioner
automatically at a set time
13 - Canceling the timer setting
13 Setting sleep mode
14 ADVANCED FUNCTIONS
14 Changing room temperature quickly
14 Indoor air purification
14 - Auto Clean operation
15 Auto operation
15 Auto Changeover operation
15 °C/°F Conversion
16 Energy saving cooling mode
16 Display screen brightness
16 Operating the air conditioner without
the remote control
17 Restarting the air conditioner
automatically
18 MAINTENANCE
20 Cleaning the air filter
21 TROUBLESHOOTING
21 Self-diagnosis function
21 Before requesting service
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BEFORE USE
ENGLISH
Air inlet vents
Air outlet vents
Connecting
wires
Refrigerant pipes
Drain hose
Base plate
BEFORE USE
Components
Outdoor unit
ON/OFF Button
Signal Receiver
Vertical Louver
Air OutletHorizontal Vane
Front Panel
NOTE
!
The number of operation lamps and their locations may vary, depending on the model of the
air conditioner.
Indoor unit
* The feature can be changed according a type of model.
* The feature can be changed according a type of model.
Operation ranges
The table below indicates the temperature ranges the air conditioner can be operated within.
{ }* : use wind baffle kit
Mode Indoor temperature Outdoor temperature
Cooling 64.4°F~89.6°F(18°C~32°C)
14°F{-0.4°F}*~118.4°F(10
°C
{-18
°C
}*~48
°C
)
Heating 60.8°F~86°F(16°C~30°C) -4°F~75.2°F(-20°C~24°C)
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BEFORE USE
9
ENGLISH
Using the remote control
You can operate the air conditioner more conveniently with the remote control. You will find the
buttons for the additional functions under the cover of the remote control.
Wireless remote control
Display
screen
Control
panel
* Some functions may not be supported, depending on the
model.
Control
panel
Display
screen
Description
/
4
Fan button : Fan only operation no
cooling/heating
l
Sleep mode auto button*: Sets the
sleep mode auto operation.
_
Temperature adjustment buttons:
Adjusts the room temperature when
cooling and heating.
|
- On/Off button: Turns the power on/off.
g
L
Indoor fan speed button: Adjusts the
fan speed.
f
AC
DB
Operation mode selection button*:
Selects the operation mode.
Cooling operation (A) / Auto operation
or auto changeover (C) /
Dehumidifying operation (D) / Heating
operation (B)
Surge button*: Warms up or cools
down the indoor temperature within a
short period of time.
DE
IJ
Air flow direction button: Adjusts the
air flow direction vertically or horizontally.
G
-
Adjusts the brightness of the indoor unit
display.
k
S
Temperature display button: Displays
the room temperature. Also changes unit
from °C to °F if pressed for 5 seconds.
mn
Timer button: Sets the current time
and the start / end time.
O
P
JG
Navigation and functions button*:
Sets the special functions.
J: Auto clean
G: Operates energy saving cooling
p
-
Set/clear button: Sets or cancels functions.
r
-
Reset button: Resets the air
conditioner settings.
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BEFORE USE
ENGLISH
Inserting batteries
Insert batteries before using the remote
control. The battery type used is AAA (1.5 V).
1 Remove the battery cover.
2 Insert the new batteries and make sure
that the + and - terminals of the batteries
are installed correctly.
3 Reattach the battery cover.
Installing the remote control holder
Install the holder where there is no direct sun-
light to protect the remote control.
1 Choose a safe and easily-accessible
place.
2 Fix the holder by fastening the 2 screws
firmly with a screwdriver.
3 Slide the remote control into the holder.
Point the remote control towards the signal
receiver at the bottom of the air conditioner to
operate it.
NOTE
!
If the display screen of the remote control
starts to fade, replace the batteries.
NOTE
!
• The remote control may operate other
electronic devices if pointed towards
them. Make sure to point the remote
control towards the signal receiver of the
air conditioner.
•
For proper operation, use a soft cloth to
clean the signal transmitter and receiver.
• Surge mode in Heating doesn’t work
when
equipped with a wired remote con-
troller.
• ON/OFF reserve mode doesn’t work
when equipped with a wired remote con-
troller.
Operating method
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BASIC FUNCTIONS
11
ENGLISH
BASIC FUNCTIONS
Cooling your room
(Cooling operation)
1 Press | to turn on the power.
2 Press f repeatedly to select the cooling
operation.
- A is displayed on the display screen.
3 Press
G
or
H
to set the desired temper-
ature.
- The temperature range is 64°F(18°C)-
86°F(30°C).
Heating your room
(Heating operation)
1 Press | to turn on the power.
2 Press f repeatedly to select the heating
operation.
- B is displayed on the display screen.
3 Press
G
or
H
to set the desired temper-
ature.
- The temperature range is 60°F(16°C)-
86°F(30°C).
Removing humidity
(Dehumidifying operation)
This mode removes excess moisture from an
environment with high humidity or in the rainy
season, in order to prevent mold from setting
in. This mode adjusts the room temperature
and the fan speed automatically to maintain
the optimal level of humidity.
1 Press | to turn on the power.
2 Press f repeatedly to select the dehu-
midifying operation.
-
D is displayed on the display screen.
NOTE
!
• In this mode you cannot adjust the room
temperature, as it is adjusted automati-
cally. Also, the room temperature is not
displayed on the display screen.
NOTE
!
Cooling-only models do not support this
function.
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12
BASIC FUNCTIONS
ENGLISH
Airing your room
(Air Circulation operation)
This mode only circulates the indoor air
without changing the room temperature. The
cooling lamp lights up in air circulation mode.
1 Press | to turn on the power.
2 Press / to select the air circulation oper-
ation.
- E is displayed on the display screen.
3 Press g to adjust the fan speed.
Adjusting the fan speed
1 Press g repeatedly to adjust the fan
speed.
- Select
5
if you want natural air.
The fan speed adjusts automatically.
Adjusting the air flow direc-
tion
1 To adjust the direction of the air flow verti-
cally, press D repeatedly and select the
desired direction.
- Select
I to adjust the direction of the
air flow automatically.
2 To adjust the direction of the air flow hori-
zontally, press E repeatedly and select
the desired direction.
- Select
J to adjust the direction of the
air flow automatically.
Setting the timer
You can use the timer function to save energy
and to use the air conditioner more efficiently.
Setting the current time
1 Press p and hold it for longer than 3 sec-
onds.
- The AM/PM icon flickers at the bottom of
the display screen.
NOTE
!
• Adjusting the air flow direction horizon-
tally may not be supported, depending
on the model.
• Adjusting the air deflector arbitrarily may
cause product failure.
• If you restart the air conditioner, it starts
to operate with the previously set direc-
tion of air flow, so the air deflector may
not match the icon displayed on the
remote control. When this occurs, press
D or E to adjust the direction of the
air flow again.
Remark Speed
High
Medium - High
Medium
Medium - Low
Low
Natural Wind
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BASIC FUNCTIONS
13
ENGLISH
2 Press
E
or
F
to select the minutes.
3 Press p to finish.
Turning on the air conditioner auto-
matically at a set time
1 Press m.
- The icon below flickers at the bottom of
the display screen.
2 Press
E
or
F
to select the minutes.
3 Press p to finish.
Turning off the air conditioner auto-
matically at a set time
1 Press n.
- The icon below flickers at the bottom of
the display screen.
2 Press
E
or
F
to select the minutes.
3 Press p to finish.
Canceling the timer setting
1 Press p.
- To cancel all timer settings, press
p.
Setting sleep mode
Use the sleep mode to turn off the air condi-
tioner automatically when you go to sleep.
1 Press | to turn on the power.
2 Press l
3 Press
E
or
F
to select the hour
(up to 7 hours).
4 Press p to finish.
-
T is displayed on the display screen in
sleep mode.
NOTE
!
In the Cooling and Dehumidifying modes,
the temperature increases by 1.8°F(1°C)
after 30 minutes and by a further
1.8°F(1°C) after another 30 minutes for a
more comfortable sleep. The temperature
increases with up to 3.6°F(2°C) from the
preset temperature.
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14
ADVANCED FUNCTIONS
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ADVANCED FUNCTIONS
The air conditioner offers some additional
advanced functions.
Changing room temperature
quickly
(SURGE operation)
This mode allows you to cool indoor air quick-
ly in summer or warm it quickly in winter.
1 Press | to turn on the power.
2 Press .
- In SURGE mode, strong air blows out at
a temperature of 64°F(18°C) for 30 min-
utes.
- In SURGE mode, strong air blows out at
a temperature of 86°F(30°C) for 30 min-
utes.
Indoor air purification
Auto Clean operation
In the cooling and dehumidifying operations,
moisture is generated inside the indoor unit.
Use the auto cleaning function to remove
such moisture.
1 Press O.
-
J is displayed on the display screen.
- If you turn off the power, the fan operates
for 30 minutes and cleans the inside of
the indoor unit.
NOTE
!
• In Air Circulation, Auto, or Auto
Changeover mode, this function cannot
be used.
• This function may not be supported,
depending on the model.
NOTE
!
Some buttons cannot be used while the
auto cleaning function is in operation.
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ADVANCED FUNCTIONS
15
ENGLISH
Auto operation
(Artificial intelligence)
In this mode, the fan speed and the tempera-
ture adjust automatically, based on the room
temperature.
1 Press | to turn on the power.
2 Press f repeatedly to select auto opera-
tion.
3 Press
G
or
H
to select the desired
operation code if the temperature is higher
or lower than the desired temperature.
Auto Changeover operation
This mode changes the operation mode auto-
matically to maintain the set temperature
at ±2°C.
1 Press | to turn on the power.
2 Press f repeatedly to select the auto
changeover operation.
-
C is displayed on the display screen.
3 Press
G
or
H
to set the desired tem-
perature.
- The temperature range is 64°F(18°C)-
86°F(30°C).
4 Press g repeatedly to select the fan
speed.
°C/°F Conversion
The unit changes from °C to °F or from °F
to °C if Room Temperature KEY is pressed for
5 seconds.
Code Description
2 Cool
1 Cool slightly
0
Maintain
room
temperature
Heat slightly -1
Heat-2
NOTE
!
• In this mode, you cannot adjust the fan
speed, but you can set the air deflector
to rotate automatically.
• This function may not be supported,
depending on the model.
Cooling-only models
NOTE
!
This function may not be supported,
depending on the model.
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Energy saving cooling mode
This mode minimizes power consumption dur-
ing cooling and increases the set temperature
to the optimal level for a more comfortable
environment.
1 Press | to turn the power on.
2 Press f repeatedly to select the cooling
operation.
3 Press
P
.
-
G is displayed on the display screen.
Display screen brightness
You can adjust the brightness of the indoor
unit display screen.
1 Press
G
to turn on/off the display screen.
Operating the air conditioner
without the remote control
You can use the On/Off button of the indoor
unit to operate the air conditioner when the
remote control is unavailable. However, the
fan speed is set to high.
1 Open the front cover.
- Lift up both sides of the cover slightly.
2 Press the On/Off button.
- For cooling and heating models, the
operation mode changes, depending on
the room temperature.
- For cooling-only models, the temperature
is set to 71.6°F (22°C).
16
ADVANCED FUNCTIONS
ENGLISH
* The feature can be changed according a
type of model.
* The feature can be changed according a
type of model.
NOTE
!
This function may not be supported,
depending on the model.
NOTE
!
This function may not be supported,
depending on the model.
NOTE
!
• Possible, Different temperature is
displayed on between remote controller
and air conditioner during operation.
ON/OFF
button
Room temp. Set temp.
Operation
mode
Below 69.8°F
(21°C)
75.2°F (24°C)
Heating
operation
Above 69.8°F
(21°C) and
below 75.2°F
(24°C)
73.4°F (23°C)
Dehumidifying
operation
Above 75.2°F
(24°C)
71.6°F (22°C)
Cooling
operation
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ADVANCED FUNCTIONS
17
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Disabling auto restart
Restarting the air conditioner
automatically
When the air conditioner is turned on again
after a power failure, this function restores the
previous settings. This function is a factory
default setting.
1 Open the front cover.
- Lift up both sides of the cover slightly.
2 Press the On/Off button and hold it for 6
seconds.
- The unit will beep twice and the lamp will
blink twice 4 times.
- To re-enable the function, press the On/
Off button and hold it for 6 seconds. The
unit will beep twice and the blue lamp will
blink 4 times.
* The feature can be changed according a
type of model.
* The feature can be changed according a
type of model.
NOTE
!
If you press and hold the On/Off button for
3 – 5 seconds instead of 6 seconds, the
unit will switch to the test operation. In the
test operation, the unit blows out strong
air for cooling for 18 minutes and then
returns to the factory default settings.
ON/OFF
button
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18
MAINTENANCE
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MAINTENANCE
If the air conditioner will not be used for an extended of time, dry the air conditioner to maintain it
in best condition.
1 Dry the air conditioner in Fan mode for 3 to 4 hours and disconnect the power plug. There
may be internal damage if moisture is left in components.
2 Before using the air conditioner again, dry the inner components of the air conditioner in Fan
mode for 3 to 4 hours. This will help to remove odor which is generated from moisture.
Clean the product regularly to maintain optimal performance and to prevent possible breakdown.
* This may not be provided, depending on the model.
Air Filter
* The feature can be changed according to type of model.
Type Description Interval
Air filter See “Cleaning the air filter.” 2 weeks
Indoor unit
Clean the Indoor unit surface by using a soft, dry cloth. Regularly
Clean the condensate drain pipe. Every 4 months
Clean the condensate drain pan. Once a year
Thoroughly clean the heat exchanger. Once a year
Replace the remote control batteries. Once a year
Outdoor unit
Use steam to clean the heat exchanger coils and the
panel vents. (consult with technician)
Regularly
Clean the fan. Once a year
Clean the condensate drain pan. Once a year
Verify that all the fan assembly is firmly tightened. Once a year
Verify that electric components with jets of air. Once a year
Clean the electric components with jets of air. Once a year
Evaporator Coil Contact an HVAC technician Annually
Indoor blower wheel
Contact an HVAC technician Annually
* Maintenance should be more frequent in areas with high occupancy, low air quality, or high air
pollution (or something like that)
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MAINTENANCE
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CAUTION
• Turn off the power and unplug the power cord before you perform any maintenance; other-
wise it may cause electric shock.
• Never use water that is hotter than 40°C when you clean the filters. It may cause deforma-
tion or discoloration.
• Never use volatile substances when you clean the filters. They may damage the surface of
the product.
!
NOTE
!
• The location and shape of the filters may differ, depending on the model.
• Make sure to clean the heat exchanger coils of the outdoor unit regularly, as dirt collected
in the coils may decrease the operational efficiency or increase energy costs.
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ENGLISH
Cleaning the air filter
Clean the air filter once every 2 weeks or
more if necessary.
1 Turn off the power and unplug the power
cord.
2 Open the front cover.
- Lift up both sides of the cover slightly.
* The feature can be changed according a
type of model.
3 Hold the knob of the air filter, lift it up
slightly and remove it from the unit.
* The feature can be changed according a
type of model.
4 Clean the filter with a vacuum cleaner or
with warm water.
- If dirt is difficult to remove, wash the filter
in lukewarm water with detergent.
5 Dry the filter in the shade.
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TROUBLESHOOTING
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TROUBLESHOOTING
Self-diagnosis function
This product has a built-in self-diagnosis function. If an error occurs, the indoor unit will blink in 2
second intervals.
Before requesting service
Please check the following before you contact the service center. If the problem persists, contact
your local service center.
Problem Possible causes Corrective action
There is a burning smell
and a strange sound coming
from the unit.
-
Turn off the air conditioner, unplug the
power cord and contact the service center.
Water leaks from the indoor
unit even when the humidity
level is low.
The power cord is damaged
or generating excessive
heat.
A switch, a circuit breaker
(safety, ground) or a fuse is
not operated properly.
The air conditioner does not
work.
The air conditioner is
unplugged.
Check whether the power cord is plugged
into the outlet.
A fuse is blown or the
power supply is
blocked.
Replace the fuse or check if the circuit
breaker has tripped.
A power failure has
occurred.
Turn off the air conditioner when a power
failure occurs. When the power is restored,
wait 3 minutes, and then turn on the air
conditioner.
The voltage is too
high or too low.
Check if the circuit breaker has tripped.
The air conditioner
turned off automati-
cally at a preset time.
Press the power button again.
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Problem Possible causes Corrective action
The air conditioner does not
generate cool air.
Air is not circulating
properly.
Make sure that there are no curtains,
blinds or furniture blocking the front of the
air conditioner.
The air filter is dirty.
Clean the air filter once every 2 weeks.
See “Cleaning Air Filter” for more informa-
tion.
The room tempera-
ture is too high.
In summer, it may take some time to cool
indoor air. In this case, select the jet cool
operation to cool indoor air quickly.
Cold air is escaping
from the room.
Make sure that no cold air is escaping
through ventilation points in the room.
The desired tempera-
ture is higher than the
set temperature.
Set the desired temperature to a level
lower than the current temperature.
There is a heating
source nearby.
Avoid using a heat generator such as an
electric oven or a gas burner while the air
conditioner is in operation.
Air circulation opera-
tion is selected.
In the air circulation operation, air blows
from the air conditioner without cooling or
heating the indoor air. Switch the opera-
tion mode to the cooling operation.
It is not possible to adjust
the fan speed.
The auto operation,
jet operation or dehu-
midifying operation is
selected.
In some operation modes, such as the jet
or dehumidifying operation modes, you
cannot adjust the fan speed. Select an
operation mode in which you can adjust
the fan speed.
It is not possible to adjust
the temperature.
The air circulation
operation or jet oper-
ation is selected.
In some operation modes, such as the air
circulation or jet operation mode, you can-
not adjust the temperature. Select an
operation mode in which you can adjust
the temperature.
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