15
ON/OFF
TEMP.
˚C
˚C
FILTER
Indicates that the filter needs cleaning.
Ask authorized people to clean the filter.
When resetting “FILTER” display
When the [FILTER] button is pressed two times successively after
cleaning the filter, the display goes off and is reset.
Note:
●
When two or more different types of indoor unit are controlled, the cleaning
period differs with the type of filter. When the master unit cleaning period
arrives, “FILTER” is displayed. When the filter display goes off, the cumula-
tive time is reset.
●
“FILTER” indicates the cleaning period when the air conditioner was used
under general indoor air conditions by criteria time. Since the degree of dirt-
iness depends on the environmental conditions, clean the filter accordingly.
●
The filter cleaning period cumulative time differs with the model.
This indication is not available for wireless remote controller.
10. Care and Cleaning
11. Trouble Shooting
When the remote controller cannot be used
When the batteries of the remote controller run out or the remote control-
ler malfunctions, the emergency operation can be done using the emer-
gency buttons on the grille.
Operation lamp
Emergency operation switch (cooling)
Receiver
Starting operation
• To operate the cooling mode, press the ON/OFF button .
Note:
• Details of emergency mode are as shown below.
Details of EMERGENCY MODE are as shown below.
Operation mode
COOL
Set temperature
24°C
Fan speed
High
Airflow direction
Horizontal
Stopping operation
• To stop operation, press the ON/OFF button .
. Emergency Operation for Wireless Remote-controller
ON
ON
OFF
POWER
Having trouble?
Here is the solution. (Unit is operating normally.)
Air conditioner does not heat or cool well.
Clean the filter. (Airflow is reduced when the filter is dirty or clogged.)
Check the temperature adjustment and adjust the set temperature.
Make sure that there is plenty of space around the outdoor unit. Is the
indoor unit air intake or outlet blocked?
Has a door or window been left open?
When heating operation starts, warm air does not blow from the indoor
unit soon.
Warm air does not blow until the indoor unit has sufficiently warmed up.
During heating mode, the air conditioner stops before the set room tem-
perature is reached.
When the outdoor temperature is low and the humidity is high, frost
may form on the outdoor unit. If this occurs, the outdoor unit performs
a defrosting operation. Normal operation should begin after approxi-
mately 10 minutes.
Airflow direction changes during operation or airflow direction cannot be
set.
During cooling mode, the vanes automatically move to the horizontal
(down) position after 1 hour when the down (horizontal) airflow direc-
tion is selected. This is to prevent water from forming and dripping
from the vanes.
During heating mode, the vanes automatically move to the horizontal
airflow direction when the airflow temperature is low or during defrost-
ing mode.
When the airflow direction is changed, the vanes always move up and
down past the set position before finally stopping at the position.
When the airflow direction is changed, the vanes move to the set posi-
tion after detecting the base position.
A flowing water sound or occasional hissing sound is heard.
These sounds can be heard when refrigerant is flowing in the air con-
ditioner or when the refrigerant flow is changing.
A cracking or creaking sound is heard.
These sounds can be heard when parts rub against each due to ex-
pansion and contraction from temperature changes.
The room has an unpleasant odor.
The indoor unit draws in air that contains gases produced from the
walls, carpeting, and furniture as well as odors trapped in clothing,
and then blows this air back into the room.
A white mist or vapor is emitted from the indoor unit.
If the indoor temperature and the humidity are high, this condition may
occur when operation starts.
During defrosting mode, cool airflow may blow down and appear like a
mist.
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