English
14
• The receiving tone of the indoor unit
makes a triple beeping sound (nor-
mally, “beep-beep”).
This is because the system is under cen-
tralized control.
• The outdoor unit is stopped.
This is because the room temperature has
reached the set temperature. The indoor
unit switches to FAN OPERATION.
COOLING OPERATION (AUTOMATIC
COOLING OPERATION):
Lower the set temperature.
HEATING OPERATION (AUTOMATIC
HEATING OPERATION):
Raise the set temperature.
The operation starts after a while when the
system is in normal condition.
• After the HEAT OPERATION is started,
the DEFROST OPERATION LAMP
located on the indoor unit display lights
up.
This is because the system automatically
switches to DEFROST OPERATION to pre-
vent a decrease in heating capacity when
frost on the outdoor unit increases.
After 6 to 8 minutes (maximum 10 minutes),
the system returns to its original operation.
II.
THE OPERATION SOMETIMES STOPS
• The remote controller displays “U4”
and “U5”, and the operation stops.
However, it will restart in a few minutes.
This is because communication between
the units is shut off and stopped due to
noise caused by devices other than the air
conditioner.
When the electrical noise decreases, the
system automatically restarts.
III.
COOLING AND HEATING OPERA-
TIONS CAN NOT BE SWITCHED
• The receiving tone of the indoor unit
makes a long beeping sound.
An unavailable mode was set for the
indoor unit during operation changeover
control.
IV
. THE FAN SPEED IS DIFFERENT FROM
THE SETTING
• Even if the FAN SPEED CONTROL BUT-
TON is pressed, the fan speed does not
change.
For the DEFROST OPERATION during
the COOLING OPERATION, the airflow
rate is lowered to prevent the carryover of
melted water. After a while, the airflow rate
can be changed. (The airflow rate cannot
be set for the PROGRAM DRY OPERA-
TION.)
When the room temperature exceeds the
set temperature the indoor unit goes into
whisper mode. It takes some time until the
airflow rate changes.
Raise the set temperature. After a while,
the airflow rate changes.
V
. AIR BLOW DIRECTION IS NOT AS
SPECIFIED
• Actual air blow direction is not as
shown on the remote controller.
• Automatic swing setting does not work.
This is because the airflow rate is automat-
ically controlled.
After a while, the airflow direction can be
changed.
Refer to “AIRFLOW DIRECTION
ADJUST” on page 10.
VI
. ONLY A PART OF INDICATION
SHOWS
• Even if the unit is operated, only the
operation indication shows, or even if
the indication shows, soon after, the
indication other than that for operation
disappears.
The corresponding indoor unit is that for
multi-system and the remote controller is
set to the multi-system.
VII
. THERE IS NO DISPLAY OR ALL
PARTS ARE DISPLAYED
• When a button on the remote controller
is pressed.
The batteries have run out.
01_EN_3P302565-1.fm Page 14 Monday, February 13, 2012 4:09 PM