6. DUST FROM THE INDOOR UNITS
• Dust may blow out from the unit after starting
operation from long resting time.
Dust absorbed by the unit blows out.
7. THE INDOOR UNITS GIVE OFF ODORS
• During operation
The unit absorbs the smell of rooms, furniture,
cigarettes, etc., and then emits them.
If odor is a concern, you can set to zero fan speed
when the indoor temperature reaches the set
temperature.
For details, contact your local dealer.
8. THE AIR CONDITIONER DOES NOT COOL
EFFECTIVELY
• The air conditioner is operating in the PROGRAM
DRY OPERATION.
This is because program dry mode operates so that
the indoor temperature decreases as little as possible.
Lower the indoor temperature using the COOLING
OPERATION, and then use the PROGRAM DRY
OPERATION.
(Refer to
"CHARACTERISTICS OF THE PROGRAM
DRY OPERATION"
on page 4.)
• Read through characteristics of the COOLING
OPERATION and characteristics of the PROGRAM
DRY OPERATION on page 4.
10. TROUBLE SHOOTING
Please check before requesting a service.
1. If the air conditioner does not operate at all.
• Check if fuse has blown.
Turn off the power supply.
Contact your local dealer.
• Check if the power circuit breaker is blown.
If the tab of power circuit breaker is in the OFF position,
turn the power on with the power circuit breaker switch.
If the tab of power circuit breaker is in the trip position
do not turn the power on with the power circuit breaker
switch.
Contact your local dealer.
ON
Power circuit breaker
(Earth leakage breaker)
• Check if there is a power failure.
Wait until power is restored. If power failure occurs
during operation, the air conditioner automatically
restarts immediately after the power supply recovers.
2. If the air conditioner stops after operating the
air conditioner.
• Check if the air inlet or outlet of indoor unit is blocked
by obstacles.
Remove the obstacle and make it well-ventilated.
The horizontal blades at the air outlet are closed while
the indoor stops.
• Check if the air filter is clogged. Ask a qualified service
person to clean the air filters.
A decrease in the airflow volume of the air conditioner
will result and the performance of the air conditioner will
be degraded and power consumption will increase if the
air filter is clogged with dust or dirt.
In addition, this may cause dew condensation at the air
outlet.
(Refer to
"8. MAINTENANCE"
on page 6.)
31
3. The air conditioner operates but it does not
sufficiently cool.
• Check if the air inlet or outlet of indoor unit is blocked
by obstacles. Remove the obstacle and make it well
ventilated.
The horizontal blades at the air outlet are closed while
the unit stops.
Obstacles decrease the fan speed, and cause
performance decrease and breakage when discharged
air is suctioned.
They cause a waste of electricity, increase operating
noise, or that may stop the devices.
• Check if the air filter is clogged. Ask a qualified service
person to clean the air filters.
A decrease in the airflow volume of the air conditioner
will result and the performance of the air conditioner
will be degraded and power consumption will increase
if the air filter is clogged with dust or dirt.
In addition, this may cause dew condensation at the air
outlet.
(Refer to
"8. MAINTENANCE"
on page 6.)
• Check if the set temperature is not proper.
Set to an appropriate temperature, fan speed, and
discharge direction.
• Check if the FAN SPEED button is set to LOW SPEED.
Set to an appropriate temperature, fan speed, and
discharge direction.
• Check if the airflow direction is not proper.
Set to an appropriate temperature, fan speed, and
discharge direction.
• Check if the doors or the windows are open.
Shut doors or windows to prevent wind from coming in.
• Check if the ventilation fan is in operation.
• Check if direct sunlight enters the room use curtains or
blinds.
• When there are too many inhabitants in the room.
• Check if the heat source of the room is excessive.
4. Operation was performed or stopped although the
ON/OFF button was not pressed.
• Are you sure that the ON/OFF timer operation is not
used?
Turn off the ON/OFF timer.
Please refer to operation manual attached to the
remote controller.
• Are you sure that any remote control device is not
connected?
Contact the central control room that directed the stop.
• Are you sure that the display for centralized control is
not lit?
Contact the central control room that directed the stop.
If the problem is not solved after checking the above
points, please do not try to repair it yourself.
In such cases, always ask your local dealer. At this time,
please tell the symptom and model name (written on the
model name plate).
If one of the following malfunction occurs, take the
measures shown below and contact your local dealer.
The air conditioner must be repaired by a qualified service
person.
