USER’S MANUAL
AST18AJHD
Indoor Unit
UST18AJHD
Outdoor Unit
Split-type Air Conditioner
(Cooling)
E
DB98-24838A(1)
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Safety Precautions
You should take the following safety precautions when using your air conditioner.
◆ Do not repair the air conditioner at your discretion.
It is recommended to contact a service center directly.
◆ Never spill any kind of liquid on the air conditioner.
If this happens, turn off the air conditioner and contact an authorized
service center.
◆ Do not insert anything between the airflow blades to prevent damage of
the inner fan and consequent injury. Keep children away from the air
conditioner.
◆ Do not place any obstacles in front of the air conditioner.
◆ Do not spray any kind of liquid into the indoor unit. If this happens,
turn off the air conditioner and contact a service center.
◆ Make sure that the air conditioner is well ventilated at all times :
Do not place a cloth or other materials over it.
◆ Remove the batteries if you don’t use the remote control for a long
time. (If applicable)
◆ Use the remote control within 7 meters from the indoor unit. (If applicable)
WARNING
DURING OPERATION
◆ Never store or load the air conditioner upside down or sideways to
prevent the damage to the compressor.
◆ Young children or infirm persons should be always supervised when
they use the air conditioner.
◆ Max current is measured according to IEC standard for safety.
◆ Current is measured according to ISO standard for energy efficiency.
OTHERS
◆ Before throwing out the air conditioner, remove the batteries from the
remote control.
◆ When you dispose of the air conditioner, consult your dealer. If pipes
are removed incorrectly, refrigerant may blow out and cause air
pollution. When it contacts with your skin, it can cause skin injury.
◆ The package of the air conditioner should be recycled or disposed of
properly for environmental reasons.
D
ISPOSING OF THE UNIT
• If you don’t follow the safety precautions, you may get the risk of an electric
shock, injury or death.
• The manufacturer or qualified service personnel must install this air conditioner.
• Turn off the electric power before repairing, installing or cleaning.
Register your product at www.samsung.com/global/register
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Contents
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P
REPARATION
■ Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
■ Name of Each Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
■ Remote Control - Buttons and Display . . . . . . . . . . . . . . . . . . . . . . 6
■ Inserting the Remote Control Batteries . . . . . . . . . . . . . . . . . . . . . 7
■ Getting Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
◆
O
PERATION
■ Selecting the Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
■ Selecting the Cool Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
■ Selecting the Dry Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
■ Selecting the Fan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
■ Selecting the Turbo Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
■ Selecting the Energy Saving Function . . . . . . . . . . . . . . . . . . . . . 14
■ Selecting the Auto Cleaning Function . . . . . . . . . . . . . . . . . . . . . . 15
■ Selecting the Sound On /Off Function . . . . . . . . . . . . . . . . . . . . . . 16
■ Selecting the Anions Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
■ Adjusting the Airflow Direction Vertically . . . . . . . . . . . . . . . . . . . . 18
■ Adjusting the Airflow Direction Horizontally . . . . . . . . . . . . . . . . . . 19
■ Setting the On Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
■ Setting the Off Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
■ Setting the Sleep Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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R
ECOMMENDATIONS FOR USE
■ Operating Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
■ Temperature and Humidity Ranges . . . . . . . . . . . . . . . . . . . . . . . . 24
■ Operating Your Air Conditioner Without the Remote Control . . . . . 25
■ Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
■ Cleaning Your Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
■ Cleaning Anti-Allergy and Deodorizing Filter (Option) . . . . . . . . . . 27
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T
ECHNICAL SPECIFICATIONS
Name of Each Part
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The design and shape can be changed according to the model.
Indoor Unit
Air filter
(under the grille)
Airflow blades
(outlet)
Power(On/Off) button
Set temperature &
room temperature
Operation indicator
(Auto-Cool, Cool, Dry, Fan : Green)
Auto cleaning indicator
(Green)
Energy saving indicator
(Green)
Anions indicator
(Green)
Turbo function indicator
(Green)
Timer indicator
(Orange)
Fan speed indicator
(Green)
Remote control sensor
Room Temperature sensor
Air Inlet
◆ In the Auto mode, 2 fan indicators increase and decrease continuously
and turn round.
◆ In the modes except the Auto mode, the fan speed indicator increases
and decreases continuously and turn round each time you press the
button. If you set the Turbo function, the fan speed indicator turns
round with the maximum setting and speed.
◆ If you want to turn on/off the Display during operation,
press the button on the remote control.
◆ The room temperature sensor senses air temperature around the
sensor, and shows the temperature on the display.
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Air Inlet(Rear)
Air Outlet
Connection Valve
Outdoor Unit
Remote Control - Buttons and Display
Remote control
transmission indicator
Timer Set/ Cancel button
Sleep button
Digital On/Off button
Swing button
Anions button
Mode selection button
(AUTO, COOL, DRY, FAN)
Fan speed adjustment button
Sound On / Off indicator
Battery life indicator
Fan speed indicator
Anions indicator
Sleep mode indicator
Off Timer button
On Timer button
Power (On/Off) button
On Timer indicator
Turbo function indicator
Temperature setting
Air flow direction
Off Timer indicator
Energy saving indicator
Temperature adjustment
buttons
Sound On/Off button
Auto Cleaning button
Turbo button
Energy saving button
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Operating mode
( AUTO, COOL,
DRY, FAN)
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Inserting the Remote Control Batteries
Remove the battery cover in the rear of the remote control by pushing
it with your thumb.
Insert two batteries, respecting the polarities as indicated by
the + and - symbols.
1
2
Close the cover by sliding it back in its place.
3
◆ Use two AAA, LR03 1.5V batteries.
◆ Do not use old batteries or different kinds of batteries together.
◆ Batteries may be completely discharged after 12 months, even
◆ if they have not actually been used.
You must insert or replace the remote control batteries when:
◆ You purchase the air conditioner
◆ The remote control does not work correctly
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Getting Start
The User’s Manual provides you with valuable information about your air conditioner.
Please read this manual carefully before using the air conditioner.
It will help you take full advantage of the unit's features.
You have already seen the basic description of the unit on pages from 4 to 6.
Starting with the next page, you will find a series of step-by- step procedures
for each function available.
The illustrations in the step-by-step procedures use three different symbols:
PRESS PUSH HOLD DOWN
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Selecting the Auto Mode
You can select the Auto mode if you want to cool your room automatically.
You can adjust the temperature in this mode.
1
Press the button on the remote control until is displayed.
Result
: ◆ The indoor unit beeps each time you press the button.
◆ The air conditioner runs in the Auto mode.
◆ The Auto mode cools the room depending on the set temperature.
2
You can change modes at any time.
If necessary, press the (On/Off) button.
Result: ◆
The operation indicator on the indoor unit lights up.
◆
The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
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Press the button to adjust the temperature until the required
temperature is displayed.
You can set the temperature between 16°C and 30°C.
Result: ◆
Each time you press the button:
- The temperature is adjusted by 1°C
- The indoor unit beeps
◆ The fan speed is adjusted automatically.
◆ 2 fan speed indicators increase and decrease continuously and
turn round.
3
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Control Panel
Selecting the Cool Mode
You can select the Cool mode if you want to cool your room.
You can adjust the temperature and the fan speed when cooling.
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To control the airflow direction, refer to pages 18 and 19.
5
Press the button on the remote control until is displayed.
Result:
◆
The indoor unit beeps each time you press the button.
◆
The air conditioner runs in the Cool mode.
2
You can change modes at any time.
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The fan speed indicator of the indoor unit varies according to
the temperature in the Automatic fan speed.
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Press the button to adjust the temperature until the required
temperature is displayed.
You can set the temperature between 16°C and 30°C.
Result: ◆
Each time you press the button:
- The temperature is adjusted by 1°C
- The indoor unit beeps
◆ If the room temperature is higher than the selected
temperature, the air conditioner starts cooling.
◆ If the room temperature reaches the set temperature, the air
conditioner stops cooling, but the fan operates consistently.
3
Press the button to select the fan speed until the required setting
is displayed.
Result
: ◆ Each time you press the button, the indoor unit beeps.
◆ The fan speed indicator increases and decreases
continuously and turns round each time you press
the button.
4
1
If necessary, press the (On/Off) button.
Result: ◆
The operation indicator on the indoor unit lights up.
◆
The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
Automatic (rotated : )
Low
Medium
High
Control Panel
To control the airflow direction, refer to pages 18 and 19.
4
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Selecting the Dry Mode
1
If necessary, press the (On/Off) button.
Result
: ◆ The operation indicator on the indoor unit lights up.
◆ The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
Press the button to adjust the temperature until the required
temperature is displayed.
You can set the temperature between 18°C and 30°C.
Result
: ◆ Each time you press the button:
- The temperature is adjusted by 1°C
- The indoor unit beeps
◆ The air conditioner starts dehumidifying and the fan
speed is adjusted automatically.
3
You can select the Dry mode if you want to dehumidify your room.
You can adjust the temperature in this mode.
Press the button on the remote control until is displayed.
Result
: ◆
The indoor unit beeps each time you press the button.
◆
The air conditioner runs in the Dry mode.
2
You can change modes at any time.
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Selecting the Fan Mode
You can select the Fan mode if you want to ventilate your room. It helps to
refresh the air in your room. You can adjust the fan speed in this mode.
1
If necessary, press the (On/Off) button.
Result
: ◆ The operation indicator on the indoor unit lights up.
◆ The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
Press the button to select the fan speed until the required setting
is displayed.
Low
Medium
High
3
You can change modes at any time.
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Press the button on the remote control until is displayed.
Result
: ◆
The indoor unit beeps each time you press the button.
◆
The air conditioner runs in the Fan mode.
◆
The temperature is set automatically.
2
Result: ◆ Each time you press the button, the indoor unit beeps.
◆ The fan speed indicator increases and decreases
continuously and turns round each time you press
the button.
Control Panel
To control the airflow direction, refer to pages 18 and 19.
4
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Selecting the Turbo Function
You can select the Turbo Function if you want to cool your room in
the fastest way. After the 30- minute operation with the maximum
setting, it returns to the previous setting.
Press the button.
Result
: ◆ The temperature and fan settings are adjusted automatically.
◆ The fan speed indicator turns round with the maximum setting
and speed.
◆ The air conditioner cools the room as quickly as possible.
◆ After 30 minutes, the air conditioner is reset automatically to the
previous setting.
◆ You can select the Turbo function in the Auto, Cool mode.
If you select this function in the Dry or Fan mode, the mode
changes to the Auto mode.
2
Press the button again to stop the Turbo Function before the end of the
30-minute period.
Result
: The air conditioner is reset automatically to the previous setting.
3
1
If necessary, press the (On/Off) button.
Result: ◆ The operation indicator on the indoor unit lights up.
◆ The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
Control Panel
To control the airflow direction, refer to pages 18 and 19.
4
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Selecting the Energy Saving Function
You can select the Energy Saving Function to save energy when
cooling. The temperature range decreases in order to perform this
function.
To control the airflow direction, refer to pages 18 and 19.
Press the button to select the fan speed until the required
setting is displayed.
Press the button.
Result
: ◆
The indoor unit beeps.
◆
The air conditioner runs in the Energy saving function.
◆
The outer airflow blade moves up and down.
◆
To stop the Energy saving function, press the again.
2
Press the button to adjust the temperature until the required
temperature is displayed. You can set the temperature between 26°C
and 30°C.
3
4
5
1
If necessary, press the (On/Off) button.
Result: ◆ The operation indicator on the indoor unit lights up.
◆ The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
You can select the Energy saving function only in the Cool
mode.
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If you want to adjust temperature under 26°C, cancel the
Energy saving function before adjusting the temperature.
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The fan speed indicator increases and decreases
continuously and turns round each time you press
the button.
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Selecting the Auto Cleaning Function
You can select the Auto Cleaning Function if you want to sterilize
the air conditioner or remove mold. Even when the air conditioner is
turned off, you can set this function.
2
Press the button.
Result: ◆
The indicator on the indoor unit lights up and the
Auto Cleaning function is set.
◆ When you turn the air conditioner off, it operates the
Auto Cleaning function for 30 minutes.
After 30 minutes, the air conditioner turns off.
◆ If you press the button when the air conditioner is
turned off, the air conditioner operates the Auto Cleaning
Function for 30 minutes.
3
Press the button again to stop the Auto cleaning function before
the end of the 30-minute period.
1
If necessary, press the (On/Off) button.
Result: ◆ The operation indicator on the indoor unit lights up.
◆ The air conditioner starts up in the mode you selected last.
◆ The indoor unit beeps.
Mode Operating time
When the air conditioner
is turned
On
Auto, Cool, Dry
Fan
30 minutes
15 minutes
Off 30 minutes
The Auto Cleaning indicator is displayed only on the indoor unit.
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Remote Control
Control Panel
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Selecting the Sound On/ Off Function
You can turn on or off the sound of the air conditioner with the remote control.
1
Press the button to turn off the sound.
Each time you press the button, Sound On/Off function is
selected repeatedly.
On
Off
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Selecting the Anions Function
The air conditioner can generate anions with an ionizer in the indoor
unit. Since it is an additional function, you can select it in any mode,
even when the air conditioner is turned off.
1 Press the button.
Result
: ◆
The air conditioner generates anions.
◆
The indoor unit beeps.
2 Press the button again to stop the Anions function.
Result
: The air conditioner is reset automatically to the previous mode,
temperature and fan settings.
3 To control the airflow direction, refer to pages 18 and 19.
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the air conditioner turns on automatically and generates
anions in the Fan mode with Low fan speed.
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Adjusting the Airflow Direction Vertically
Press the button until the required direction is set.
Result
: The outer blade is adjusted vertically.
You can adjust the airflow direction vertically. The outer airflow
blade moves up and down to increase the efficiency of the cooling
operation.
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Off is closed completely.
On set to the default position.
1
Press the button again to move the blade up and down
automatically during operation.
2
Press the button again to stop the blade moving up and down.
3
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Adjusting the Airflow Direction Horizontally
You can adjust the airflow direction horizontally manually.
The inner blades with small fins moves the air in the required
direction.
Adjust the inner blades by moving them to left or right.
1
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Setting the On Timer
If you press the button, both the On Timer and the Off
Timer are canceled.
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You can set the On Timer to turn on the air conditioner automatically
at the appointed time. You can set the time from 30 minutes to 24 hours.
Press the button until the required time is displayed to set the
On Timer. You can set the time between 0.5 hour and 24 hours.
1
Press the button to complete the setting.
Result:
◆ The remaining time is displayed.
◆ The timer indicator stops blinking.
◆ The selected mode and the temperature on the display
disappear after 10 seconds.
◆ The air conditioner turns on automatically at the appointed
time and the On Timer setting disappears.
2
Press the button to cancel the On Timer.
Press the button until the desired mode is displayed at the top of the
remote control to select the mode in advance.
Result:
The air conditioner operates in the selected mode when it is
turned on.
3
To Cancel the On Timer
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Setting the Off Timer
You can set the Off Timer to turn off the air conditioner automatically
at the appointed time. You can set the time from 30 minutes to 24 hours.
Press the button until the required time is displayed to set the
Off Timer. You can set the time between 0.5 hour and 24 hours.
1
You can check or change the mode and/or the temperature by
pressing the button or the button after setting the
Off Timer.
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Press the button to complete the setting.
Result:
◆ The remaining time is displayed.
◆ The timer indicator stops blinking.
◆ The air conditioner turns off automatically at the appointed
time and the Off Timer setting disappears.
2
If you would like to turn the air conditioner on after 2 hours
and to operate it for 2 hours:
1. Press the button until ‘2.0 Hr’ is displayed.
2. Press the button.
3. Press the button until ‘4.0 Hr’ is displayed.
4. Press the button.
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If you press the button, both the On Timer and the Off Timer
are canceled.
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Press the button to cancel the Off Timer.
To Cancel the Off Timer
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Setting the Sleep Timer
You can set the Sleep Timer to turn off the air conditioner automatically
while you are sleeping. The air conditioner stops operating 6 hours after
you set the Sleep Timer.
Cooling The set temperature is
increased by 1°C every hour.
After the increase of 2°C, the
temperature is maintained
for 4 hours.
To Cancel the Sleep Timer
Press the button to cancel the Sleep Timer.
Result
: ◆ The indoor unit beeps.
◆ The indicator is no longer displayed.
◆ The air conditioner operates normally.
Press the button.
Result
: ◆ The indoor unit beeps.
◆ The air conditioner will be controlled as indicated in the
illustrations below.
1
You can set Sleep Timer only in the Cool mode.
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Operating Recommendations
When you use your air conditioner, it is recommended to read the
following :
Topic Recommendation
Power failure If power failure occurs when the air conditioner
is operating, the air conditioner turns off.
When the power returns, the air conditioner
starts up again automatically.
Protection mechanism When the air conditioner is started immediately
after being plugged in or stopped, the normal
operation starts up after 3 minutes for the
reason of protection.
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Temperature and Humidity Ranges
If you check the following tables, you can use your air conditioner more efficiently.
If the air conditioner is used at... Then...
High temperatures
The air conditioner may stop operating for the reason of protection.
Operation Outdoor Temperature Indoor Temperature Indoor Humidity
Cooling 21°C to 54°C approx. 16°C to 32°C approx. 80% or less
Dehumidifying 18°C to 54°C approx. 16°C to 32°C approx. -
❇ If you use the air conditioner over 32°C (indoor temperature), the cooling capacity may drop.
Low temperatures
Water may leak and some malfunction may occur if the heat exchanger freezes.
High humidity levels
Water may condense and drip from the surface of the indoor unit if you don’t use
the air conditioner for a long time.
Operating Your Air Conditioner Without the Remote Control
You can operate your air conditioner directly without the remote control.
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Open the front grille.
To turn the air conditioner off, press the On/Off button again.
1
To turn the air conditioner on, press the On/Off button in the front grille
of the indoor unit.
Result
: ◆
The Operation indicator on the indoor unit lights up.
◆ The indoor unit beeps.
2
3
Even if you turned the air conditioner on with the On/Off button,
you can control it with the remote control.
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Troubleshooting Guide
Before contacting the service center, check the following. It will save your time and the
expense of an unnecessary call.
Explanation/Solution
◆ Check if the circuit breaker of the air conditioner is switched on.
◆ Check if the air conditioner is turned on. If necessary, press the
(On/Off) button on the remote control.
◆ Check if the Timer indicator on the indoor unit is on.
If so:
- Wait until the set time is reached and the air conditioner starts
automatically.
- Cancel the Timer. (See pages 20 and 21 for further details)
◆ Check if there are no obstacles in front of the indoor unit.
◆ Check the remote control batteries.
◆ Make sure that you are within 7 meters from the indoor unit.
◆ Check if you are pointing the remote control at the remote control
sensor on the right side of the indoor unit.
◆ Replace the remote control batteries if necessary.
◆ Check if the correct operating mode has been selected
(Auto, Cool).
◆ The room temperature may be too low.
◆ Check if the air filter is dirty; refer to page 27 for cleaning instructions.
◆ Check that there is no obstacle in front of the outdoor unit.
◆ Check if the mode is set to the Cool or Fan mode;
in the Auto and Dry mode, the fan speed changes automatically.
◆ Check if the air conditioner has been turned on; if necessary, press
the (On/Off) button on the remote control.
◆ Check if the timer is set correctly; see pages 20 and 21.
◆ You can use the Fan mode to ventilate your room.
Problem
The air conditioner does not
operate.
The air conditioner does not
operate with the remote control.
No beep is heard when you press
the (On/Off) button on the
remote control.
The air conditioner does not cool.
The fan speed does not change
when you press the button.
The airflow direction does not
change when you press the
button.
The timer is not correctly triggered.
Odor permeates into the
room during operation.
Cleaning Your Air Conditioner
Cleaning Anti-Allergy and Deodorizing Filter (Option)
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Deodorizing Filter Anti-Allergy Filter
Air filter
Body groove
Body
Hook
Body
Front grille
Front grille
For the best use of your air conditioner, you must clean it every 2 weeks
to remove the dust that accumulates on the air filter.
Before cleaning your air conditioner, check if you have
turned off the circuit breaker.
IMPORTANT
Open the front grille by pulling on the tabs on the lower right and left
sides of the indoor unit.
1
Detach the front grille by pulling it forwards.2
Hold the edge of the air filter under the front grille and pull to release.3
Remove all dust on the air filter with a vacuum cleaner or brush.4
When you finish, insert the top of the filter into the slot and fix it to
5 tabs of the grille.
5
Clean the front grille with a damp cloth and mild detergent.
(Do NOT use benzene, solvents or other chemicals).
6
Reassemble the air filter and the front grille.7
If you have not used the air conditioner for a long time, select the
Fan mode for 3 to 4 hours to dry the inside of the air conditioner.
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There are Anti-Allergy and Deodorizing filters inside your air conditioner.
They remove odours and dust in your room. You should clean the filters
every 3 months.
Open the upper front grille by pulling the lower right and left tabs of
the grille.
1
Pull out the Anti-Allergy and Deodorizing filter.2
Wash the filters with clean water, then dry them in the shade.
3
Insert the filters in their place. 4
Close the front grille.5
ELECTRONICS
THIS AIR CONDITIONER IS MANUFACTURED BY:
Printed in Korea
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