Page 1
Room Air Conditioner
OPERATING INSTRUCTIONS
Indoor
Model CS-MC90AKH
CS-MC120AKH
CS-MC180AKH
Outdoor
Model CU-4MC200AKH
Before using your air-conditioner, please
read this operating instructions carefully
and keep it for future reference.
ENGLISH/ ····························P1 – P28
Page 2
CONTENTS
READ BEFORE OPERATION
■ Safety Precautions ........................................................ 2
■ Names of Parts
Indoor unit, Outdoor unit ...................................... 4
Remote controller ................................................. 5
■ Preparation Before Operation
Remote controller ................................................. 6
Indoor unit ............................................................ 7
OPERATION
■ DRY/COOL/FAN Mode Operation ................................. 8
■ Adjusting the Air Flow Direction
Adjusting the horizontal blade
(flap) ................................................................... 8
Adjusting the louvre.............................................. 8
■ Timer Operation
OFF TIMER operation .......................................... 9
ON TIMER operation ............................................ 9
■ POWERFUL Operation ................................................. 9
CARE
■ Care and Cleaning
Cleaning the air filters ........................................ 10
Replacing air purifying filters .............................. 10
Cleaning the front grille ...................................... 11
TROUBLE SHOOTING
■ Trouble Shooting
These cases are not troubles ............................. 12
Check again ....................................................... 13
Call the service shop immediately ..................... 14
1
Page 3
Safety Precautions
■ Read the following warnings and cautions carefully
before operating the system and use it correctly.
■ This manual classifies the precautions to the user
into two categories on the right. Be sure to follow
all as they are all important to ensure safety.
■ After reading this manual, keep it in a place easily
accessible to the user for future reference.
WARNING
Do not attempt to extend the
power cord by joining it to another
cord, or by using an extension
cord. Do not put any other loads
on the power supply socket.
Failure to follow this will cause electric
shocks, abnormal heating or fire.
Do not put a finger, a rod or other
objects into the air outlet or inlet.
As the fan is rotating at a high
speed, it will cause injury.
Do not attempt to repair, relocate,
modify or reinstall the air
conditioner by yourself.
Incorrect work will cause electric
shocks, fire etc. For repairs and
reinstallation, consult the shop
where you bought the air conditioner.
Do not damage or attempt to
modify the power cord. Do not use
the cord in a damaged state or
tied in a bundle.
Applying a heavy weight, heat or
tension on the power cord will damage
it, causing electric shocks or fire.
If anything abnormal
such as a burning smell
occurs, stop the operation immediately and
turn the breaker OFF.
Continued abnormal operation will cause
troubles, electric shocks,
fire etc. If anything is
abnormal, consult the
shop where you bought
the air conditioner.
Failure to follow a warning is very likely
WARNING
CAUTION
If the air conditioner is not cooling or heating
properly, the refrigerant may be leaking, so
see the dealer where the unit was purchased.
Check with a qualified repairman before
attempting any repairs, which might accompany addition of refrigerant.
The refrigerant used in the air conditioner is safe.
Although leaks should not occur, if for some reason
any refrigerant happens to leak into the room, make
sure it does not come in contact with any flame, such
as fan heaters, kerosene heaters, or gas ranges, as
this may result noxious substances being generated.
to result in such grave consequences
as death or serious injury.
Failure to follow a caution may result in
serious injury or property damage, and
in certain conditions, may result in a
grave consequence.
Do not expose your body to the
cool air for a long time; do not
cool the room too much.
It will affect your physical conditions
and cause health problems.
Do not use the air conditioner for
preservation purposes.
Do not use it for preserving precision
instruments, foods, plants, animals,
works of fine arts etc. Performance
or quality may deteriorate and
animal or plant life may be shorter.
Before cleaning, be sure to stop the
operation and turn the breaker OFF.
As a fan is rotating at a high speed,
cleaning during operation may cause
injury.
Do not place under the indoor or
outdoor unit anything which must
be kept away from moisture.
Indoor unit:
condense and drip in certain conditions.
Outdoor unit: during cooling operation, condensation may drip from the
piping connections.
Do not place a vessel containing
water on the unit.
Water may penetrate into the unit
and degrade electrical insulations,
resulting in an electric shock.
moisture in the air may
CAUTION
Do not operate the air conditioner
with a wet hand.
It may cause an electric shock.
After a long use, check the unit
stand and fittings for damage.
The unit may drop and cause injury
if damage is left unrepaired.
Do not wash the unit with water.
It may cause an electric shock.
Do not place a burning appliance
in places exposed to the air flow
from the unit or under the indoor
unit.
It may cause incomplete combustion
or deformation of the unit from heat.
Do not connect the air conditioner
to a power supply different from
the specification.
It may cause troublers or fire.
Ventilate the room from time to
time.
Be careful especially when using a
burning appliance in the same room.
Insufficient ventilation may cause
shortage of oxygen.
Do not stand or sit on the outdoor
unit. Do not place any object on
the unit.
The object or the person may fall
down or drop, causing injury.
Do not expose plants or animals
directly to the air flow.
It may cause adverse effects on the
plant or the animal.
Do not allow children to mount on
the outdoor unit or avoid placing
any object on it.
Falling or tumbling may result in injury.
Do not block air inlets nor outlets.
Impaired air flow may result in
insufficient performance or troubles.
2
Page 4
Installation
WARNING
Do not attempt to install the air conditioner by yourself.
Consult the service shop or a qualified technician.
Incorrect work will result in water leakage, electric shocks or fire. For installation, consult the service
shop where you bought the unit or a qualified technician.
CAUTION
The air conditioner must be earthed.
Incomplete earthing may result in electric
shocks.
Do not connect the earth line to a gas pipe,
Depending on the environment, an earth
leakage breaker must be installed.
Lack of an earth leakage breaker may result in
electric shocks.
water pipe, lightening rod, or a telephone
earth line.
Do not install the air conditioner in places
where flammable gas may leak.
If leaked gas should accumulate near the unit,
fire may occur.
Arrange the drain hose to ensure smooth
drainage.
Incomplete drainage may cause wetting of the
building, furniture etc.
Installation site
■ To install the air conditioner in the following types of
environments, consult the shop.
Places with an oily ambient or where steam or soot occurs.
Salty environment such as coastal areas.
Places where sulfide gas occurs such as hot springs.
Places where snow may block the outdoor unit.
The drain from the outdoor unit must be discharged to a place
of good drainage.
A place with
good
ventilation
Wall
Air
outlet
For efficient operation, take as large
spaces around the unit as site allows.
Air
inlet
To prevent interference, place it
at least 1 m away.
Consider nuisance to your neighbours from noises.
■ For installation, choose a place as described below.
A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.
A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.
Electrical work
For power supply, be sure to use a separate power circuit dedicated to the air conditioner.
System relocation
Relocating the air conditioner requires specialized knowledge and skills. Please consult the shop where you bought the air
conditioner if relocation is necessary for moving or remodeling.
3
Page 5
FILTERPOWER TIMER
OFF/ON
Names of Parts
Indoor unit
Air purifying filter
Air purifying filters are
attached to the inside
of the air filters.
Air filter
Louvre (vertical blades)
The louvre is inside of the air
outlet.
(See page 8 “Adjusting the Air
Flow Direction”.)
Flap (Horizontal blade)
(See page 8 “Adjusting the
Air Flow Direction”.)
Air inlet
Air outlet
OPERATION lamp (green)
ON/OFF switch
Front grille
Indicator lamps
Outdoor unit
Air inlets
(Back and side)
Grille tab
Diffuser
Earth terminal:
is inside of this part.
Air outlet
Refrigerant piping and
inter-unit cable
TIMER lamp (yellow)
(See page 9 “Timer
Operation”.)
CLEANING lamp (red)
Lights up when the air
filters need cleaning.
(See page 10 “Care and
Cleaning”.)
Opening the front grille
How to open the front grille: (See page “Care and Cleaning”)
CAUTION
Before opening the grille, be sure to stop the operation
and turn the breaker OFF. If the power is on, the fan may
rotate inside and may cause injury.
Room temperature sensor:
• senses the air temperature around the unit.
ON/OFF switch
• Push this switch once to start operation. Push once
again to stop it.
• The mode is set to COOL, the air flow rate to AUTO
and the temperature to 22°C. (see page 8 “DRY/
COOL/FAN Mode operation.”)
• This switch is useful when the remote controller is
missing.
Receiver:
• receives signals from the remote
controller.
• When the unit receives a signal,
you will hear a short beep.
Control panel
CLEANING lamp
reset button
• Push this button to
turn the CLEANING
lamp off.
4
Page 6
Names of Parts
Remote controller
Display
Open
the
cover.
ON TIMER button
(See page 9 "Timer Operation")
MODE selector button
selects the operation mode.
displays the
current settings.
(In this illustration, each section
is shown with all
its displays ON
for the purpose of
explanation.)
OFF TIMER button
: DRY
: COOL
: FAN
AMPM
AMPM
ON
C
OFF-TIMER
ON-TIMER
Transmitter
sends signals to the indoor unit.
OFF/ON
TEMP
TIME
CLOCK
CANCEL
FAN SPEED
MODE
SWING
POWERFUL
ON/OFF button
Press it once to start operation.
To stop it, press it once again.
TEMPERATURE/TIME adjustment buttons
change the temperature or time setting.
CLOCK button
(See page 7 "Preparation Before Operation
- Setting the Clock)
TIMER CANCEL button
cancels the timer setting.
FAN setting button
selects the air flow rate setting.
OFF/ONOFF/ON
TEMP
SWING button
(See page 8 "Adjusting the Air
Flow Direction")
POWERFULL button
(See page 9 "POWERFUL
Operation")
ARC417A24
You can operate these
three buttons with the
cover closed.
5
Page 7
Preparation Before Operation
Remote controller
■Setting the batteries
Position ＋ and
− correctly!
Address switch
2
1
Press with a finger and slide the
1
back cover to take it off.
Set two alkaline dry batteries (LR03).
2
Set the back cover as before.
3
This will cause the figures on the display to flash. Set
•
the clock at this point.
The address switch is used when two indoor units are to
•
be installed in a single room.
If there is only one indoor unit in the room, it must be set
•
to “1”.
To install two units in a single room, consult the shop
•
where you bought the air conditioner.
3
■Operating the remote controller
To use the remote controller, aim the transmitter at the indoor
•
unit. If there is anything to block signals between the unit and
the remote controller, such as a curtain, the unit will not
operate.
Do not drop the remote controller. Do not get it wet.
•
The maximum distance for communication is about 7 m.
•
Receiver
■
To fix the remote controller holder
on the wall (option)
Choose a place from where the signals
1
reach the unit.
Fix the holder to a wall, a pillar, etc. with the
2
screws supplied with the holder.
Fit the claw of the holder into the bottom of
3
the remote controller, and push the remote
controller onto the wall.
② Push.
Remote
controller
holder
ATTENTION
About batteries
Always replace two batteries at the same time. Replace
•
them with new ones of an identical type.
Do not use manganese dry batteries since their use may
•
cause a malfunction.
If you are not going to use the air conditioner for a long
•
period, take out all the batteries.
Batteries should last for about a year under normal
•
conditions. When you find the displays unclear and
signal communication often failing, replace them with
new ones.
Batteries may be exhausted even before the
•
recommended date of consumption printed on them, if
the air conditioner was manufactured many months ago.
Never try to recharge the batteries.
•
6
① Set.
To remove, pull it upwards.
•
ATTENTION
About the remote controller
Never expose the remote controller to direct sunlight.
•
Dust on the signal transmitter or receiver will reduce
•
the sensitivity. Wipe off dust with soft cloth.
Signal communication may be disabled if an electronic-
•
starter-type fluorescent lamp (such as inverter-type
lamps) is in the room. Consult the shop if that is the
case.
If the remote control signals happen to operate another
•
appliance, move that appliance to somewhere else, or
consult the shop.
Page 8
Preparation Before Operation
Indoor unit
■ Setting the air cleaning filters
Open the front grille.
1
2
Hold the grille by the tabs on the two sides and lift it
•
until it stops with a click. (about 60°)
℃
℃
Pull out the air
filters.
Push upwards the tab
•
at the center of each
air filter, then pull it
down.
■ Setting the clock
CLOCK
.
AM
1
Press
is displayed.
l
l
l
l
AM
l
l
Press to set the clock to
2
the present time.
l
l
l
l
PM
l
l
Holding down ( ) or ( ) button
•
rapidly increases or decreases the time display.
blinks.
Set the air purifying filters.
3
4
Attach an air purifying filter to each air filter.
•
You may stick a colour sample label at a convenient
•
place on the indoor unit so that you can know when
they need replacement by comparing the colours. (See
page 10 “Care and cleaning – Replacing air purifying
filters”)
Set the air filters in their original
positions and close the front grille.
Operation without air filters may result in troubles as
•
dust will accumulate inside the indoor unit.
NOTE
Tips for saving energy
Be careful not to cool the room too much.
•
Keeping the temperature setting at a moderate level helps
save energy.
Recommended temperature setting
For cooling: 26°C ~ 28°C
Cover windows with a blind or a curtain.
•
Blocking sunlight and air from outdoors increases the
cooling effect.
Clogged air filters cause inefficient operation and waste
•
energy. CLEANING lamp tells you when the air filters
need cleaning. Clean them once in about every two
weeks.
CLOCK
.
3
Press
blinks.
PM
(Now the clock is set.)
■ Turn the breaker ON
Turning ON the breaker opens the flap, then closes it again.
•
(This is a normal procedure.)
Please note
The air conditioner always consumes 15 watts of
•
electricity even while it is not operating.
If you are not going to use the air conditioner for a long
•
period, for example in spring or autumn, turn the breaker
OFF.
Use the air conditioner in the following conditions.
•
Mode
COOL
DRY
Operating conditions
Outdoor temperature:
19 to 46°C
Indoor temperature:
18 to 32°C
Indoor humidity:
80% or below
If operation is continued
out of this range:
• A safety device may
work to stop the operation.
• Condensation may oc-
cur on the indoor unit
and drip.
Operation outside this humidity or temperature range may
•
cause a safety device to disable the system.
7
Page 9
DRY/COOL/FAN Mode Operation
Adjusting the Air Flow Direction
The air conditioner operates with the settings of your
choice.
From the next time on, the air conditioner will operate
with the same settings.
MODE
Press
1
Each pressing of the button advances the mode setting
•
in sequence.
OFF/ON
Press
2
and select a mode.
Display
.
OFF/ON
FILTERPOWER TIMER
Then OPERATION lamp
lights up.
■ To stop:
OFF/ON
Press
Then OPERATION lamp goes off.
once again.
You can adjust the air flow direction to increase your
comfort.
Adjusting the
horizontal blade (flap)
Press
•
Notes on flap angles
•
SWING
.
Every time the button is pressed, “ ” appears or
disappears.
....... The flap automatically
swings up and down.
....... To stop the flap at an
angle you like, press
No display
The diffuser is kept open in
DRY,COOL or FAN mode.
SWING
DRY
COOL
FAN
.
■
To change the temperature setting:
DRY or FAN mode
The temperature
setting is not
variable.
■
To change the air flow rate setting:
FAN SPEED
Press
DRY mode COOL or FAN mode
The air flow
rate setting
is not variable.
At smaller air flow rates, the cooling effect is also smaller.
•
Press to raise the temperature and press
to lower the temperature.
Set to the temperature
you like.
.
Five levels of air flow rate setting from “ ” to
“ ” plus “ ” are available.
COOL mode
C
Display
■ To change the air flow direction:
(See page 8.)
Notes on DRY mode operation
This operation dehumidifies the indoor air when it is humid.
•
Display
NOTE
Unless [SWING] is selected, you should set the flap at
•
a near-horizontal angle in COOL or DRY mode to
obtain the best performance.
In DRY mode, if the flap is fixed at a upward position,
•
the flap automatically moves in about 60 minutes to
prevent condensation on it.
Adjusting the louvre
じ
う
そ
マ
お
イ
タ
転
運
Hold the knob and move the louvre.
(You will find a knob on the left-end and the right-end blades.)
ATTENTION
Always use a remote controller to adjust the flap angle.
•
If you attempt to move it forcibly with hand when it is
swinging, the mechanism may be broken.
Be careful when adjusting the louvre. Inside the air
•
outlet, a fan is rotating at a high speed.
8
Page 10
Timer Operation
Timer functions are useful for automatically switching
the air conditioner on or off at night or in the morning.
You can also use OFF TIMER and ON TIMER in
combination.
OFF TIMER operation
Check that the clock is correct.
•
If not, set the clock to the present time. (See page 7.)
OFF-TIMER
Press
1
is operating.
AM
Press until the time setting
2
reaches the point you like.
Every pressing of either button increases or decreases
•
the time setting by ten minutes. Holding down either
button changes the setting rapidly.
OFF-TIMER
Press
3
■ To cancel the timer:
CANCEL
Press
while the air conditioner
AM
l
l
l
l
l
l
l
l
l
l
Display
blinks.
once again.
Then the TIMER lamp lights up.
.
Then the TIMER lamp goes off.
is displayed.
AM
Display
■ To cancel the timer:
CANCEL
Press
.
Then the TIMER lamp goes off.
Combining ON TIMER and OFF TIMER
A sample setting for combining the two timers is shown below.
•
(Example)
Present time: 11:00 PM
(The unit operating)
OFF TIMER at 0:00 a.m.
ON TIMER at 7:00 a.m.
Combined
➡
AM
AM
Notes on ON,OFF TIMER
When ON TIMER is set, the present time is not displayed.
•
Once you set ON,OFF TIMER, the time setting is kept in the
•
memory. (The memory is canceled when remote controller
batteries are replaced.)
When operating the unit via the ON/OFF Timer, the actual length
•
of operation may vary from the time entered by the
user.(Maximum approx. 10 minutes.)
ATTENTION
■ In the following cases, set the timer again.
After a breaker has turned OFF.
•
After a power failure.
•
After replacing batteries in the remote controller.
•
Display
Notes on OFF TIMER
When the OFF TIMER is set, the air conditioner automatically
•
adjusts the temperature setting (0.5°C up in COOL) to
prevent excessive cooling for your pleasant sleep.
ON TIMER operation
Check that the clock is correct. If not, set the clock to the
•
present time (See page 7).
ON-TIMER
Press
1
is not operating.
AM
Press until the time setting
2
reaches the point you like.
Every pressing of either button increases or decreases
•
the time setting by ten minutes. Holding down either
button changes the setting rapidly.
ON-TIMER
Press
3
AM
while the air conditioner
l
l
l
l
l
l
l
l
l
AM
Display
blinks.
once again.
Display
Then the TIMER lamp lights up.
is displayed.
FILTERPOWER TIMER
OFF/ON
POWERFUL Operation
POWERFUL operation quickly maximizes the cooling
effect in any operation mode. You can get the
maximum capacity with a touch of a button.
Pressing the (POWERFUL) button during operation starts
•
POWERFUL operation.
POWERFUL operation ends in 20 minutes. Then the system
•
automatically operates again with the settings which were
used before POWERFUL operation.
Press
1
■
To cancel POWERFUL operation:
Press
POWERFUL
.
POWERFUL
.
Notes on POWERFUL operation
In COOL mode
•
To maximize the cooling effect, the temperature setting is
fixed to 18°C and the air flow rate is fixed to the maximum
setting.
The temperature and air flow settings are not variable.
In DRY mode
•
The temperature setting is lowered by 3°C and the air flow
rate is slightly increased.
In FAN mode
•
The air flow rate is fixed to the maximum setting.
Display
9
Page 11
Care and Cleaning
CAUTION
Before cleaning, be sure to stop the operation and
turn the breaker OFF.
Cleaning the air filters
(It is recommended to clean them every two weeks.)
Clean the air filters, when
FILTERPOWER TIMER
OFF/ON
Open the front grille.
1
Hold the grille by the tabs on the two sides and lift it until
•
it stops with a click. (about 60°)
Push CLEANING LAMP RESET
2
button.
(See page 4 “Names of Parts”.)
Pull out the air filters.
3
Push a little upwards the tab
•
at the center of each air filter,
then pull it down.
•
CLEANING lamp lights up.
℃
℃
Cleaning the indoor and outdoor
units and the remote controller
Wipe them with dry soft cloth.
•
For cleaning, do not use water hotter than 40°C, benzine,
gasoline, thinner, nor other volatile oils, polishing compound,
scrubbing brushes nor other hard stuff.
Replacing air purifying filters
(It is recommended to replace them every three months.)
Air purifying filters need to be replaced regularly.
•
When the filter colour has turned as dark as the sample label,
•
replace them even if they are not yet three months old.
Open the front grille and pull out the
1
air filters.
℃
Detach the filter
element and attach a new one.
Take off the air
2
cleaning filters.
Air purifying
filter frame
℃
3
Take off the air
4
purifying filters and
clean them.
Wash them with water, or
•
clean them with a vacuum
cleaner.
If the dust does not come off
•
easily, wash them with
neutral detergent thinned
with lukewarm water, then
dry them up in the shade.
Set the air purifying filters and the air
5
filters as they were and close the front
grille.
Push
Insert claws of the filters into slots of the front panel. The
•
front grille should lock at both sides and at the point in
the middle. Push the grille at the 3 points indicated by
S.
NOTE
In a dusty environment, clean the air filters at least
•
once in every two weeks even before the CLEANING
lamp lights up.
Operation with dusty air filters lowers the cooling
•
capacity and wastes energy.
Hold the recessed
•
parts of the frame and
unhook the four claws.
Attach the air
4
purifying filter.
Set the air fil-
5
ters as they
were and close
the front grille.
(Push the grille at the 3
points, two at both sides
and in the middle.)
NOTE
To order air purifying filters, contact the service shop
•
where you bought the air conditioner.
Once the air purifying filter element gets dirty, it is not
•
reusable but must be thrown away.
Operation with dirty air purifying filters:
•
• cannot clean the air.
• results in poor cooling.
• may cause odour.
Item Part No.
Air purifying filter (with frame)
Air purifying filter (without frame)
KAF918A41
KAF918A42
10
Page 12
Care and Cleaning
Cleaning the front grille
You may remove the front grille for cleaning.
CAUTION
When removing or attaching the front grille, use a robust
•
and stable stool and watch your steps carefully.
When removing or attaching the front grille, support the
•
grille securely with hand to prevent it from falling.
For cleaning, do not use water hotter than 40°C, benzine,
•
gasoline, thinner, nor other volatile oils, polishing
compound, scrubbing brushes nor other hard stuff.
After cleaning, make sure that the front grille is securely
•
fixed.
Open the front grille.
1
Hold the grille by the tabs on the two sides and lift it until
•
it stops with a click.
℃
Remove the front grille.
2
Supporting the front grille with one hand, release the
•
lock by sliding down the knob with the other hand.
To remove the front grille, pull it toward yourself with
•
both hands.
℃
Check
Check that the base, stand and other
fittings of the outdoor unit are not
decayed or corroded.
Check that nothing blocks the air inlets
and the outlets of the indoor unit and the
outdoor unit.
Check that the earth wire is not
disconnected or broken.
Check that the drain comes smoothly out
of the drain hose during COOL or DRY
operation.
If no drain water is seen, water may be leaking from the
•
indoor unit. Stop operation and consult the service shop
if this is the case.
Before a long idle period
1 Operate the fan alone for several
hours on a fine day to dry out the
inside.
Clean the front grille.
3
You may wipe it with a soft cloth soaked in water.
•
Only neutral detergent may be used.
•
You may wash the grille with water. After washing, dry it
•
with cloth, then dry it up in the shade.
Attach the front grille.
4
Set the 3 keys of the front grille into the slots and push
•
them in all the way.
Supporting the front grille with one hand, fit the lock by
•
sliding up the knob with the other hand.
Close the front grille slowly in this state. (Push the grille
•
at the 3 points, two at both sides and in the middle.)
Fit the key
into the slot.
MODE
Press
1
OFF/ON
Press
2
2 Clean the air filters and set them
again.
3 Take out batteries from the remote
controller.
4 Turn OFF the breaker for the room air
conditioner.
The air conditioner consumes 15 watts of electricity
•
even when it is stopped with the remote controller.
and select “ ”.
.
Slide up the knob.
11
Page 13
Trouble Shooting
●
These cases are not troubles.
The following cases are not air conditioner troubles but have some reasons. You may just
continue using it.
Case
Operation does not start soon.
●
When ON/OFF button was
pressed soon after operation
was stopped.
●
When the mode was re-selected.
The air conditioner emits
sounds.
Explanation
●
This is to protect the air conditioner.
You should wait for about 3 minutes.
■ A flowing sound:
●
This is the sound of refrigerant gas flowing in the air
conditioner.
■ A 'psss' sound:
●
This is a sound emitted when the refrigerant flow stops
or changes inside the unit.
■ A snap sound:
●
This is a sound produced when the indoor unit casing
shrinks or expands slightly due to temperature
changes.
■ A “plop-plop” sound:
●
This is a sound heard from the air conditioner when
a ventilator is operated in a closed space. Open a
window or stop the ventilator.
The outdoor unit emits water or
steam.
Mists come out of the indoor
unit.
The indoor unit gives out odour.
The outdoor fan rotates while
the air conditioner is not in
operation.
The operation stopped suddenly.
(OPERATION lamp is on)
■ In COOL or DRY mode
●
Moisture in the air condenses into water on the cool
surface of outdoor unit piping and drips.
●
This happens when the air in the room is cooled into
mist by the cold air flow during cooling operation.
●
This happens when smells of the room, furniture, or
cigarettes are absorbed into the unit and discharged
with the air flow.
(If this happens, we recommend you to have the indoor
unit washed by a technician. Consult the service shop
where you bought the air conditioner.)
■ After operation is stopped:
●
The outdoor fan continues rotating for another 30
seconds for system protection.
■ While the air conditioner is not in operation:
●
When the outdoor temperature is very high, the
outdoor fan starts rotating for system protection.
●
For system protection, the air conditioner may stop
operating on a sudden large voltage fluctuation.
It automatically resumes operation in about 3 minutes.
12
Page 14
Trouble Shooting
●
Check again
Please check again before calling a repair person.
Case
The air conditioner does not
operate.
(OPERATION lamp is off)
Cooling effect is poor.
Operation stops suddenly.
(OPERATION lamp flashes.)
Check
●
Hasn’t a breaker turned OFF or a fuse blown?
●
Isn’t it a power failure?
●
Are batteries set in the remote controller?
●
Is the address switch in the remote controller set
correctly?
(See page 6 “Preparation Before Operation”.)
●
Is the timer setting correct?
●
Are the air filters clean?
●
Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
●
Is the temperature setting appropriate?
●
Are the windows and doors closed?
●
Are the air flow rate and the air direction set
appropriately?
●
Isn’t a ventilator operating?
●
Are the air filters clean?
●
Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
Clean the air filters or take all obstacles away and turn the
breaker OFF. Then turn it ON again and try operating the
air conditioner with the remote controller. If the lamp still
flashes, call the service shop where you bought the air
conditioner.
An abnormal functioning happens during operation.
●
The air conditioner may malfunction with lightening or
radio waves. Turn the breaker OFF, turn it ON again
and try operating the air conditioner with the remote
controller.
13
Page 15
Trouble Shooting
●Call the service shop immediately.
WARNING
■ When an abnormality (such as a burning smell) occurs, stop operation
and turn the breaker OFF.
Continued operation in an abnormal condition may result in troubles, electric
shocks or fire.
Consult the service shop where you bought the air conditioner.
■ Do not attempt to repair or modify the air conditioner by yourself.
Incorrect work may result in electric shocks or fire.
Consult the service shop where you bought the air conditioner.
If one of the following symptoms takes place, call the service shop immediately.
■ The power cord is abnormally hot or damaged.
■ An abnormal sound is heard during operation.
■ The safety breaker, a fuse, or the earth leakage
breaker cuts off the operation frequently.
■ A switch or a button often fails to work
properly.
■ There is a burning smell.
■ Water leaks from the indoor unit.
■ After a power failure
The air conditioner automatically resumes operation in about three
minutes. You should just wait for a
while.
■ Lightening
If lightening may strike the neighbouring
area, stop operation and turn the
breaker OFF for system protection.
Turn the breaker
OFF and call the
service shop.
We recommend periodical maintenance
In certain operating conditions, the inside of the air conditioner may get foul after several
seasons of use, resulting in poor performance. It is recommended to have periodical
maintenance by a specialist aside from regular cleaning by the user. For specialist
maintenance, contact the service shop where you bought the air conditioner.
The maintenance cost must be born by the user.
14
Page 16
Matsushita Electric Industrial Co., Ltd.
Osaka 6542-8588, Japan
Printed in Thailand
3P069074-1A
M00B079A (0102) HT
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