This Air Conditioner contains and
operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED
BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation,
regulations, codes, installation & operation manuals, before
the installation, maintenance or service of this product.
OPERATING MANUAL
AIR CONDITIONER
Wall Mounted Type
□ ASTG30KMTC
MODEL:
* Please check the model name.
(Refer to the rating label.)
□ ASTG34KMTC
Before using this product, read these instructions
thoroughly. Also, keep this manual for future
reference, together with the installation manuals for
the indoor and outdoor units.
To prevent personal injury or property damage, read this section
carefully before you use this product, and be sure to comply
with the following safety precautions.
Incorrect operation due to failure to follow the instructions may
cause harm or damage, the seriousness of which is classied
as follows:
WARNING
This mark warns of death or serious injury.
CAUTION
This mark warns of injury or damage to property.
This mark denotes an action that is PROHIBITED.
This mark denotes an action that is COMPULSORY.
Explanation of symbols displayed on the indoor unit or outdoor unit.
WARNING
This symbol shows that this product uses a
ammable refrigerant. If the refrigerant is leaked and
exposed to an external ignition source, there is a risk
of re.
CAUTION
This symbol shows that the operating manual should
be read carefully.
CAUTION
This symbol shows that a service personnel should
be handling this equipment with reference to the
installation manual.
CAUTION
This symbol shows that information is available such
as the operating manual or installation manual.
WARNING
• The appliance shall be installed, operated and stored
in a room with a oor area larger than X m².
Amount of refrigerant charge
M (kg)
1.22 < M ≤ 1.23 1.45
1.23 < M ≤ 1.50 2.15
1.75 < M ≤ 2.0 3.82
2.0 < M ≤ 2.5 5.96
3.0 < M ≤ 3.5 11.68
3.5 < M ≤ 4.0 15.26
• This product contains no user-serviceable parts.
Always consult authorized service personnel for
repairing, installation, and relocation of this product.
Improper installation or handling will cause leakage,
electric shock, or re.
• In the event of a malfunction such as burning smell,
immediately stop operation of the air conditioner, and
disconnect all the power supply by turning o the
electrical breaker or disconnecting the power plug.
Then consult authorized service personnel.
• Take care not to damage the power supply cable.
If it is damaged, it should be replaced only by
authorized service personnel in order to avoid a
hazard.
• In the event of refrigerant leakage, be sure to keep
away from re or any ammables, and consult
authorized service personnel.
• In the event of a thunder storm or any prior sign
of a lightning strike, turn o the air conditioner via
the remote controller, and refrain from touching the
product or the power source to prevent any electrical
hazards.
• This product shall be stored in a room without
continuously operating ignition sources (for example:
open ames, an operating gas appliance or an
operating electric heater).
• This product shall be stored in a well-ventilated area.
• Be aware that refrigerants may not contain an odour.
• This product shall be stored so as to prevent
mechanical damage from occurring.
• Disposing of the product shall be done properly, in
compliance with national or regional regulations.
• During transportation or relocation of the indoor unit,
pipes shall be covered with the wall hook bracket for
protection.
Do not move this product by holding the indoor unit pipes.
(The stress applied to the pipe joints may cause the
• This product 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 this product by a person responsible
for their safety. Children should be supervised to ensure
that they do not play with this product.
• Dispose of the packing materials safely. Tear and
dispose of the plastic packing bags so that children
cannot play with them. There is danger of suocation
if children play with the original plastic bags.
• Do not install the unit in area lled with mineral oil
such as a factory or area containing a large amount of
splashed oil or steam such as a kitchen.
• Do not start or stop the operation of this product by
inserting or pulling out the power plug, or by turning
on or o the circuit breaker.
• Do not use ammable gases near this product.
• Do not expose yourself directly to the cooling airow
for many hours.
• Do not insert your ngers or any other objects into
outlet port or inlet port.
• Do not operate with wet hands.
• Do not use means to accelerate the defrosting
process or to clean this product, other than those
recommended by the manufacturer.
• Do not pierce or burn.
2. PREPARATION
WARNING
• Take care to prevent infants and young children from
accidentally swallowing the batteries.
CAUTION
• If leaking battery uid comes in contact with your skin,
eyes, or mouth, immediately rinse with plenty of clean
water, and consult your physician.
• Exhausted batteries must be removed immediately, and be
disposed according to the local laws and regulations of your region.
• Do not attempt to recharge dry batteries.
• Do not use dry batteries that has been recharged.
Indoor unit accessories
Please check that the following accessories are included.
Remote controller
Remote controller holder
Tapping screws
BatteriesAir cleaning ltersFilter holders
CAUTION
• Provide occasional ventilation during use.
• Always operate this product with air lters installed.
• Ensure that any electronic equipment is at least 1 m
(40 in) away from this product.
• Disconnect all the power supply when not using this
Screws
product for extended periods.
• After a long period of use, ensure to get the mounting
of the indoor unit checked to prevent this product from
falling down.
• The airow direction and the room temperature should
be carefully considered when you use this product in a
room with infants, children, elderly or sick persons.
• Keep the surroundings of the outdoor unit clean and
tidy, and do not place items around it. Any objects
blocking or entering from the outlet ports may cause
product malfunction.
• Do not direct the airow at replaces or heating apparatus.
• Do not block or cover the intake grille and the outlet port.
• Do not apply any heavy pressure to radiator ns.
• Do not climb on, place objects on, or hang objects
from this product.
• Do not place any other electrical products or household
1~3. Put batteries as shown in the gure above.
4. Press
5.
belongings under this product. Dripping condensation
from this product might get them wet, and may cause
damage or malfunction of your property.
• Do not expose this product directly to water.
• Do not use this product for preservation of food, plants,
6. Press
7. Press
animals, precision equipment, art work, or other objects.
This may cause quality deterioration of those items.
• Do not expose animals or plants to the direct airow.
8. Press
• Do not drink the drainage from the air conditioner.
• Do not pull the power supply cable.
• Do not touch the aluminum ns of heat exchanger
built-in this product to avoid personal injury when you
maintain the unit.
• Do not stand on unstable steps when operating or cleaning
this product. It may overturn and can cause injury.
This product contains uorinated greenhouse gases.
• Do not mix dierent types or new and used batteries together.
• Batteries can be used about 1 year in ordinary use.
• If the remote control range noticeably shortens, replace the
batteries, and press
• When you replace the batteries, the settings will be initialized.
Remote controller holder installation
321
Insert
Slide up
Battery loading and remote controller preparation
(R03/LR03/AAA x 2)
to start clock setting.
Press
* By pressing , the time indicator can be changed
from a 24-hour to a 12-hour clock.
to set day of the week (Monday to Sunday).
to continue.
to set the clock.
Press the buttons to change the clock by a minute.
Press down the buttons to change the clock by 10 minutes.
to complete the setting.
Be close to the indoor unit. If you press the button from a
distance, settings may not be properly sent.
as shown in page 4.
En-2
3. NAME OF PARTS
CAUTION
For appropriate signal transmission between the remote
controller and the indoor unit, keep the signal receiver
away from the following items:
- Direct sunlight or other strong lights
- Flat-panel television screen
In rooms with instantaneous uorescent lights, such as
inverter type ones, the signal may not be transmitted
properly. In such a case, consult the store of purchase.
3.2. Remote controller
When you use the optional remote controller, the appearance
and the operation procedure may dier.
For details, please refer to the operating manual of each remote
controller.
: The setting must be done while the setting screen is displayed
for each function.
: The button is controllable only when the air conditioner is
operating.
3.1. Indoor unit
For Manual Auto operation
and Filter indicator reset
(Refer to page 13.)
Intake grille
Indicator lamps
Remote controller
signal receiver
*1)
Air cleaning lter
Air lter
*2)
Rating label
Front panel
Human sensor
(Refer to page 7.)
Drain hose
Signal transmitter
Aim at the signal receiver of the indoor unit properly.
• Operating range is approximately 7 m.
] will appear when the signal is transmitted.
• [
• The indoor unit will emit a beep when it receive the signal
properly. If there is no beep, press the button again.
Remote controller display
In this section, all the possible indicators are displayed for description.
In actual operation, the display is linked with the button operation, and
only shows the necessary indicators for each setting.
For Basic operations ..................... Refer to page 5.
Starts or stops the air conditioner operation.
Changes the operation mode.
Adjusts the setting temperature.
For 10 °C Heat operation .............. Refer to page 8.
Activates the 10 °C Heat operation.
*1) Before starting operation, make sure that the intake grille is closed
completely. Incomplete closing may aect the proper function or
performance of the product.
*2) Indicator lamps light in the following conditions.
Name
OperationGreenNormal operation
TimerOrangeTimer operation
EconomyGreenEconomy operation
—
ColorOperation or condition
10 °C Heat operation
OrangeFunction not available
(This lamp may blink. Refer to page 11 and 12.)
En-3
For Energy saving operations ...... Refer to page 7.
Activates or deactivates the Economy
operation.
Activates or deactivates the Energy saving
program that uses the human sensor
.
For Outdoor Unit Low Noise operation
... Refer to page 8.
Activates or deactivates the Outdoor Unit Low
Noise operation.
Do not press this button in normal use.
It starts the test run (for use by authorized service personnel only).
NOTES: If the test run starts unintentionally, press
It saves more electricity than other operation modes by changing the set
temperature to a moderate setting.
Press to activate/deactivate the Economy
operation.
[ ] indicator on the indoor unit will turn on.
Operation
mode
Cooling/Dry Few degrees higher than the set temperature
HeatingFew degrees lower than the set temperature
NOTES:
• In the Cooling, Heating, or Dry mode, the maximum output of this
operation is approximately 70 % of usual operation.
• This operation cannot be performed during the temperature
monitoring by the Auto mode.
7.2. Human sensor for energy saving
• Do not use this function when there are only infants,
children, elderly, or sick persons in the room.
Room temperature
WARNING
Detection range of Human sensor
Side viewTop view
7 m
7 m
NOTES: Since Human sensor detects infrared light given out by people,
the detection may be incorrect in the following situations.
Situations in which the sensor may detect no one in the room,
even when there is someone there:
• When the room temperature is high and the dierence with people’s
body temperature is small. (Such as when the temperature is 30˚C
or higher in summer.)
• When someone in the room do not move for a long time.
• When someone is hidden behind a sofa, other furniture, glass, or in
similar situations.
• When someone is wearing extremely thick clothing and turn their
backs on the sensor.
Situations in which the sensor may detect people in the room, even
when there is no one there
• When there is a dog or a cat moving around in the room.
• When wind is moving curtains or plants.
• When heating units, humidiers, or electric appliances such as
oscillating electric fans are operating.
90°
50°50°
7.3. Fan control for energy saving
CAUTION
• Do not use this function in server rooms or other
places where there is no one in the room.
• Do not place large objects near the human sensor.
Also keep heating units outside the sensor’s detection
area.
When no one is in the room, the air conditioner operates moderately to
prevent waste of electricity.
(This function is activated at the time of purchase.)
To change the setting, press .
While the Energy Saving program is activated, on the
remote controller display will turn on.
NOTES:
• The following operations will override the Energy Saving program.
- Sleep timer operation
- 10 ˚C Heat operation
• The Energy Saving program may not work when the room
temperature is very dierent from the set temperature, such as
when immediately after starting the operation.
■Details on Energy Saving program
Human sensor on the indoor unit detects movement of people.
If there is no one in the room for approximately 20 minutes, the
temperature will be adjusted moderately.
When someone comes back into the room, the air conditioner revert to
the original settings.
Operation
mode
Cooling/Dry Higher than the set temperature (Max. +2˚C)
HeatingLower than the set temperature (Max. -4˚C)
Auto
Depending on the operating mode (Cooling/ Heating/
Dry).
Room temperature
(When there is no one there)
In the Cooling operation, when the room
temperature reaches the set temperature, the
indoor unit fan rotates intermittently to save
power. (This function is deactivated at the time of
purchase.)
To change the setting, use the following
steps;
1. Press
until only the clock is displayed on the remote
controller display.
2. Press down
The current Fan Control status ( ) is displayed.
3. Press
deactivated (
4. Press
The display will return to the original screen.
NOTES: If you do not press any buttons for 30 seconds after
to send the setting to the indoor unit.
displayed,
step 2.
for more than 5 seconds.
to switch between activated ( ) or
).
is
will turn o. In this case, repeat the setting from
7.4. Demand Response
This product is designed to be compatible with Air Conditioning Demand
Response program.
To utilize the function, you need a separate arrangement with your
electricity supplier. Please check availability in the place of use.
When your electricity supplier activates one of the following 3 Demand
Response (DR) modes, the air conditioner switches over to the
appropriate operation.
During the DR mode, [
Blinking pattern and the intervals are as follows:
Operation modeIndicator lamp blinking pattern
Auto/Cooling/Heating/Dry/Fan
] indicator on the indoor unit will blink.
On Blinks (2 times)
10˚C Heat operation
When the DR mode nishes, the air conditioner returns to the operation
• During the DR mode, the cooling or heating performance may be
reduced.
• During the DR mode, only the following operations are valid.
- Turning o the operation by
- O timer operation
• The Powerful operation is performed within the operable range of
the DR mode.
• During the DR mode, the Filter sign will not display.
• Timer setting error indicator will be prioritized over the DR mode
indicator.
If you have operational issues:
(1) Contact your electricity supplier to check whether they are activating
the DR mode.
(2) Is the air conditioner under the Demand controlling?
Yes
No • Contact Fujitsu General (AUST.) PTY LIMITED. (Refer to
50 % or less
(compared with rated energy consumption)
electrical energy consumption in 30 minutes:
75 % or less
(compared with rated energy consumption)
Contact your electricity supplier.
your warranty card.)
or
• Visit our website (www.fujitsugeneral.com.au).
8. OTHER OPERATIONS
8.1. Powerful operation
In the Powerful operation, the air conditioner will operate at maximum
power and strong airow to cool down or warm up the room quickly.
Press to activate/deactivate the Powerful operation.
When activated, the indoor unit will emit 2 short beeps.
When deactivated, the indoor unit will emit 1 short beep.
The Powerful operation will be turned o automatically in the following
situations:
• The Powerful operation runs for a certain amount of time and the
room temperature reaches the set temperature in the Cooling, Dry,
or Heating mode.
• 20 minutes after the Powerful operation has started.
NOTES:
• The airow direction and the fan speed are controlled automatically.
• The Powerful operation cannot be performed simultaneously with
Economy operation.
• The Powerful operation overrides the following operations. If
the following operations are set, they will start after the Powerful
operation nishes.
- Outdoor Unit Low Noise operation
- Energy Saving program
• If the wired remote controller (optional) is connected, this function is
restricted.
8.2. Outdoor Unit Low Noise operation
While the Outdoor Unit Low Noise operation is activated,
on the remote controller is displayed.
The setting is preserved even if the air conditioner is turned o.
NOTES:
• This operation cannot be performed simultaneously with the Fan
mode, Dry mode, and Powerful operation.
• If the wired remote controller (optional) is connected, this function is
restricted.
8.3. 10 °C Heat operation
10 °C Heat operation maintains the room temperature at 10 °C so as to
prevent the room temperature to drop too low.
Press to activate the 10 °C Heat operation.
The indoor unit will emit 1 short beep and [ ] indicator on the
indoor unit will turn on.
Press to turn o the air conditioner.
[ ] indicator will turn o.
NOTES:
• During the 10 °C Heat operation, only
• When the room temperature is warm enough, this operation will not
perform.
• If the wired remote controller (optional) is connected, this function is
restricted.
and are valid.
9. SETTINGS ON INSTALLATION
9.1. Remote controller custom code setting
By setting custom code of indoor unit and remote controller, you can
specify the air conditioner which the remote controller controls.
When two or more air conditioners are in the room and you wish to
operate them separately, set the custom code (4 selections possible).
NOTES: If custom codes is dierent between the indoor unit and the
How to set the remote controller custom code
1. Press
2. Press down
3. Press
4. Press
remote controller, the indoor unit cannot receive a signal from
the remote controller.
until only the clock is displayed on the remote
controller display.
for more than 5
seconds.
The current custom code will be
displayed (initially set to A).
to change the
custom code between A↔B↔C↔D.
* Match the custom code on the display
to the air conditioner custom code.
again.
The custom code will be set.
The display will return to the clock
display.
• To change the air conditioner custom code, contact an authorized
service personnel (initially set to A).
• If you do not press any buttons for 30 seconds after the custom
code is displayed, the display returns to the clock display. In this
case, repeat the setting from step 2.
• Depending on the remote controller, the custom code may return
to A when replacing the batteries. In this case, reset the custom
code as necessary. If you do not know the air conditioner custom
code, try each code until you nd the code which operates the air
conditioner.
The Outdoor Unit Low Noise operation lowers noise from the outdoor
unit. During this operation, the rotation number of the compressor
decreases and the outdoor unit fan rotates slowly.
Lift up the air lters' handle, disconnect the two lower tabs, and pull
out.
Air lter handle
9. Install the air cleaning lter holders to the air lters.
Engage the 2 hooks at the rear of the air cleaning lter holder with
the latch at both ends of the air holder.
Hook (2 places at the rear)
Tabs (2 places)
3. Remove the dust in either of the following ways.
• Cleaning with vacuum cleaner.
• Washing with mild detergent and warm water. After washing, dry the
air lters thoroughly in shade.
4. Replace the air lters.
Align the sides of the air lter with the panel, and push in fully.
Make sure to the two lower tabs are returned to their holes in the
indoor unit properly.
5. Close the intake grille.
Press 4 places on the intake grille to close it completely.
NOTES: If dirt accumulates on the air lter, airow will be reduced,
operating eciency will lower, and the noise will increase.
Cleaning Ion deodorization lter and
Replacing Apple-catechin lter
1. Remove the air lters. Refer to steps 1 ~ 2 of "Cleaning air
lter".
2. Remove the air cleaning lters from the air cleaning lter
holder.
Air cleaning lter holder
Air cleaning lter
3. Flush the Ion deodorization lter (light blue) with highpressure hot water until the surface of the lters are covered
with water.
4. Wash the Ion deodorization lter with diluent neutral
detergent.
Do not ream or rub, otherwise the deodorizing eect may decrease.
5. Rinse the Ion deodorization lter with water ow.
6. Dry the Ion deodorization lter in shade.
7. Remove the Apple-catechin lter (light green) from the air
cleaning lter holder.
8. Set the new or washed air cleaning lters into the air
cleaning lter holders.
NOTES: Use the Apple-catechin lter as soon as possible after opening
the package. The air cleaning eect decreases when the lters
are left in the opened package.
Latch (2 places)
NOTES: Take care that the air cleaning lter does not project
beyond the holder.
10. Engage the six xing locations at the top and bottom of the
air cleaning lter holder with the hooks of the air lter.
Rear of the lter
Fixing location,
hook (6 places)
11. Replace the air lters and close the intake grille. Refer to
steps 4 ~ 5 of "Cleaning air lter".
Replacing Ion deodorization lter
1. Remove the air lters. Refer to steps 1 ~ 2 of "Cleaning air
lter".
2. Remove the Ion deodorization lter (light blue) from the air
cleaning lter holder.
3. Install the new Ion deodorizing lter.
After extended non-use of the unit
If you have shut down the indoor unit for 1 month or more, perform the
Fan mode operation for half a day to dry the internal parts thoroughly
before the normal operation.
Additional inspection
After long period of use, accumulated dust inside the indoor unit may
reduce the performance even if you have maintained the unit properly.
In such a case, a product inspection is recommended.
For more information, consult authorized service personnel.
Filter indicator reset (Special setting)
This function can be used if set correctly during installation. Please
consult authorized service personnel in order to use this function.
Clean the air lter when the indicator lamp show the
following:
Indicator lampBlinking pattern
Blinks 3 times, at intervals of 21 seconds
After cleaning, reset the lter indicator by pushing
This air conditioner operates on the heat-pump principle, absorbing
heat from air outdoors and transferring that heat to the indoor unit. As a
result, the operating performance is reduced as outdoor air temperature
drops.
If you feel that the heating performance is insucient, we recommend
you to use this air conditioner in conjunction with other kinds of heating
appliance.
■Automatic defrosting operation
When outdoor temperature is very low with high humidity, frost may
form on the outdoor unit during the heating operation, and it could
reduce the operating performance of the product.
For frost protection, a microcomputer-controlled automatic defrost
function is equipped in this air conditioner.
If frost forms, the air conditioner will temporarily stop, and defrost circuit
will operate briey (maximum of 15 minutes.)
[
] indicator on the indoor unit blinks during this operation.
If frost forms on the outdoor unit after the Heating operation, the outdoor
unit will stop automatically after it operates for a few minutes. Then the
Automatic defrosting operation starts.
■Auto-restart function
In event of power interruption such as a blackout, the air conditioner
stops once. But it restarts automatically and performs previous operation
when the power supply is resumed.
If any power interruption occurs after the timer is set, counting down of
the timer will be reset.
After the power supply is resumed, [
blinks to notify you that there has been a timer fault. In such a case,
reset the clock and timer settings.
] indicator on the indoor unit
12.1. Wired remote controller
The optional wired remote controller can be used.
You can use wired and wireless remote controller together.
However, some functions of the wireless remote controller are restricted.
If you set the restricted functions, beeping sound will be heard, [
[ ], and [ ] indicator on the indoor unit will blink.
<Restricted functions for wireless remote controller>
When using together with wired remote controller (2-wired type)
• Weekly timer operation
• Powerful operation
• Outdoor Unit Low Noise operation
• 10 °C Heat operation
Group control
One remote controller can control up to 16 air conditioners. All of the air
conditioners will be operated with the same settings.
NOTES:
• Be sure to deactivate the Energy saving program (human sensor)
of the wireless remote controller when you use the group control.
Otherwise you cannot operate the air conditioner by the wireless
remote controller.
], [ ],
■Malfunctions caused by other electrical
devices
Use of other electrical appliances such as an electric shaver or nearby
use of a wireless radio transmitter may cause the malfunction of the air
conditioner.
If you encounter such a malfunction, turn o the circuit breaker once.
Then turn it on again, and resume operation by using the remote
controller.
■Indoor unit temperature and humidity range
Permissible ranges of temperature and humidity are as follows:
Indoor temperatureCooling/Dry [°C]18 to 32
Heating[°C]16 to 30
Indoor humidity[%]80 or less *
*1) If the air conditioner is used continuously for many hours, water may
condense on the surface and drip.
• If the unit is operated under the conditions except the permissible
temperature range, the air conditioner operation may stop because
of the automatic protection circuit working.
• Depending on the operating conditions, the heat exchanger may
freeze, causing water leakage or other malfunction (in the Cooling
or Dry mode).
1)
■Other information
• Do not use the air conditioner for any purpose other than room
cooling/dry, room heating or fan.
• For the permissible ranges of temperature and humidity for the
outdoor unit, refer to the outdoor unit installation manual.
In the following events, immediately stop operation of
the air conditioner, and disconnect all the power supply
by turning o the electrical breaker or disconnecting
the power plug. Then consult your dealer or authorized
service personnel.
As long as the unit is connected to the power supply, it
is not insulated from the power supply even if the unit is
turned o.
• Unit smells of something burning or emits smoke
• Water leaks from the unit
Does not operate at all.
□ Has there been a power outage?
In this case, the unit restarts automatically after the power supply
is resumed. (Refer to page 11.)
□ Has the circuit breaker been turned o?
⇒ Turn on the circuit breaker.
□ Has a fuse blown out or the circuit breaker been tripped?
⇒ Replace the fuse or reset the circuit breaker.
□ Is the timer operating?
⇒ To check or deactivate the timer setting, refer to page 5.
Poor cooling or heating performance.
□ Is the unit operating under the conditions except the permissible
temperature range?
In this case, the air conditioner may stop because of the automatic
protection circuit working.
□ Do you have an arrangement with your electric company for
Demand Response?
In this case, the air conditioning performance may become lower
or the operation may stop. (Refer to page 7.)
□ Is the air lter dirty?
⇒ Clean the air lter. (Refer to page 9.)
□ Is the intake grille or outlet port of indoor unit blocked?
⇒ Remove the obstructions.
□ Is the room temperature adjusted appropriately?
⇒ To change the temperature setting, refer to page 5.
□ Is a window or door left opened?
⇒ Close the window or the door.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to page 5.
□ Has the Outdoor Unit Low Noise operation been set?
⇒ To stop the Outdoor Unit Low Noise operation, refer to page
8.
□ <In the Cooling mode> Is direct or strong sunlight shining into the
room?
⇒ Close the curtains.
□ <In the Cooling mode> Are there other heating apparatus or com-
puters operating, or too many people in the room?
⇒ Turn the heating apparatus or computers o, or set the
temperature lower. (Refer to page 5.)
Airow is weak or stops.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to page 5.
□ Has the Fan Control for Energy Saving set? In this case, the
indoor unit fan may stop temporarily while the Cooling operation.
⇒ To cancel the Fan control for energy saving, refer to page 7.
□ <In the Heating mode> Have you just started the operation?
In this case, the fan rotates at very low speed temporarily to warm
up the internal parts of the unit.
□ <In the Heating mode> Is the room temperature higher than the
set temperature?
In this case, the outdoor unit stops and the indoor unit fan rotates
at very low speed.
□ <In the Heating mode> Is [
In this case, the Automatic defrosting operation is working. The indoor unit stops for maximum of 15 minutes. (Refer to page 11.)
□ <In the Dry mode> The indoor unit operates at low fan speed to
adjust the room humidity, and may stop from time to time.
□ <In the Auto mode> While the monitoring operation, the fan
rotates at very low speed.
Noise is heard.
□ Is the unit operating, or immediate after stopping operation?
In this case, refrigerant owing sound may be heard. It may be
particularly noticeable for 2-3 minutes after starting operation.
□ Do you hear a slight squeaking sound during the operation?
This sound is produced by the minute expansion and contraction
of the front panel caused by temperature change.
□ <In the Heating mode> Do you hear a sizzling sound?
This sound is produced by the Automatic defrosting operation.
(Refer to page 11.)
Smell coming from the unit.
□ The air conditioner may absorb various smells generated from
interior textile, furniture, or cigarette smoke. These smells may be
emitted during the operation.
Mist or steam is emitted from the unit.
□ <In the Cooling or Dry mode> A thin mist may be generated by
condensation formed with sudden cooling process.
□ <In the Heating mode> Is [
In this case, steam may rise from the outdoor unit because of the
Automatic defrosting operation.(Refer to page 11.)
Outdoor unit emits water.
□ <In the Heating mode> The outdoor unit may emit water gener-
ated by the Automatic defrosting operation. (Refer to page 11.)
The unit operates dierently from the remote controller setting.
□ Do you have an arrangement with your electric company for
Demand Response?
In this case, the air conditioning performance may become lower
or the operation may stop. (Refer to page 7.)
□ Are the batteries in the remote controller exhausted?
⇒ Replace the batteries.
□ Do you use the group control?
In this case, if the Energy saving program (Human sensor) on the
wireless remote controller is activated, you cannot operate the air
conditioner by the wireless remote controller.
⇒ Deactivate the Energy saving program. (Refer to page 7.)
Operation is delayed after restart.
□ Has the power supply turned from O to On suddenly?
In this case, the compressor will not operate for about 3 minutes
to prevent a blowout of the fuse.
] indicator blinking?
] indicator on the indoor unit blinking?
Immediately stop operation and turn o the electrical breaker in
following cases. Then consult authorized service personnel.
• The problem persists even if you perform these checks or
diagnostics.