15
10. 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 7.)
•
Read through characteristics of the
COOLING OPERATION, characteristics of
the HEATING OPERATION, and
characteristics of the PROGRAM DRY
OPERATION on page 6-7.
Read the operation manual that attached to the
outdoor unit.
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.
•
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.
10. TROUBLE SHOOTING
Tab
Trip position
Power circuit breaker
(Earth leakage breaker)
ON
OFF
2. If the air conditioner stops after operating the
air conditioner.
•
Check if the air inlet or outlet of outdoor or
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 9.)
3. The air conditioner operates but it does not
sufficiently cool or heat.
•
Check if the air inlet or outlet of outdoor or
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 9.)
•
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.
