13
2. Operation
[4]–4. Display change setting
(1) Temperature display °C/°F setting
• To switch the setting, press the [
ON/OFF] button
D
.
1
°C
: The temperature unit °C is used.
2
°F
: The temperature unit °F is used.
(2) Suction air temperature display setting
• To switch the setting, press the [
ON/OFF] button
D
.
1
ON
: The suction air temperature is displayed.
2
OFF
: The suction air temperature is not displayed.
(3) Automatic cooling/heating display setting
• To switch the setting, press the [
ON/OFF] button
D
.
1
ON
: One of “Automatic cooling” and “Automatic heating” is displayed under the automatic mode is running.
2
OFF
: Only “Automatic” is displayed under the automatic mode.
3. Care and cleaning
A
B
3.1. Cleaning the filters and the indoor unit
Cleaning the filters
• Clean the filters using a vacuum cleaner. If you do not have a vacuum
cleaner, tap the filters against a solid object to knock off dirt and dust.
• If the filters are especially dirty, wash them in lukewarm water. Take care
to rinse off any detergent thoroughly and allow the filters to dry com-
pletely before putting them back into the unit.
Caution:
• Do not dry the filters in direct sunlight or by using a heat source,
such as an electric heater: this may warp them.
• Do not wash the filters in hot water (above 50°C), as this may warp
them.
• Make sure that the air filters are always installed. Operating the
unit without air filters can cause malfunction.
Caution:
• Before you start cleaning, stop operation and turn OFF the power
supply.
• The air filter should be obtained locally. Be sure to check on the
location and the way of setting with the contractor when the unit
perform a trial run. (Example) The air filter should be attached to
the indoor unit’s air intake (rear side of unit).
A
Air intake
B
Filter
Problem
Unit does not cool or heat very well.
The unit stops operating before ar-
riving at the set temperature in the
heating mode.
A white mist is expelled from the in-
door unit.
The indicators of the remote control-
ler do not light up when operated.
CENTRALLY CONTROLLED is dis-
played in the remote controller.
Problem
The start and stop functions are not
available just after restarting the unit.
“PLEASE WAIT” is displayed in the
remote controller.
An error code is displayed in the re-
mote controller.
Solution
Wait about three minutes (operation
has stopped to prevent damage to
the air conditioner).
An automatic startup test is being
performed (will last for about two min-
utes).
A self-diagnostic function is being
performed to preserve the air condi-
tioner.
* Do not attempt to make repairs
yourself. Turn the main switch off
and contact the dealer from whom
you bought the air conditioner. Pro-
vide him or her with the name of the
unit and the information displayed
in the remote controller.
Solution
Clean the filter.
Frost forms when the outdoor tem-
perature is low and humidity is high.
Wait for about 10 minutes for the frost
to melt.
This may occur just after the unit is
turned on when a high level of hu-
midity is present in the room.
Turn on the power switch. “
” will
be displayed.
The start and stop functions of the
remote controller are not available
when the CENTRALLY CONTROL-
LED message is lit.
Before you call out a repair man, check the following table to see whether there is a simple solution to your problem.
[for wired remote controller]
If none of the above apply, turn the main switch off and contact the dealer from whom you bought the air-conditioner, telling him the model name and the
nature of the problem. Do not try to fix the unit yourself.
4. Troubleshooting
