English
11
The following symptoms do not indicate air condi-
tioner malfunction
• HEATING OPERATION within 6 hours after the
power is supplied to the power circuit breaker.
Some models perform the following operation to
protect the devices.
If the HEATING OPERATION is performed within
6 hours after the power is supplied to the power
circuit breaker, the indoor fan stops for about 10
minutes during the outdoor unit operation to pro-
tect the devices.
The above operation is performed not only at the
time of installation, but every time the power cir-
cuit breaker is turned on/off.
For comfort heating, it is recommended not to
turn off the power circuit breaker during HEATING
OPERATION.
I.
THE SYSTEM DOES NOT OPERATE
•
The system does not restart immediately
after the ON/OFF button is pressed.
•
The system does not restart immediately
when TEMPERATURE SETTING button is
returned to the former position after pushing
the button.
If the OPERATION lamp lights, the system is in
normal condition.
It does not restart immediately because a safety
device operates to prevent overload of the sys-
tem. After approx. 3 minutes, the system will turn
on again automatically.
•
The system does not start when the display
shows “
” and it flashes for few sec-
onds after pressing an operation button.
This is because the system is under centralized
control. Flashes on the display indicates that the
system cannot be controlled by the remote con-
troller.
•
The system does not start immediately after
the power supply is turned on.
Wait 6 hours or more until the micro computer is
prepared for operation.
•
The outdoor unit stops.
This is because the indoor temperature has
reached the set temperature. The indoor unit is
in the FAN OPERATION.
COOLING OPERATION (AUTOMATIC COOL-
ING OPERATION): Lower the set temperature.
HEATING OPERATION (AUTOMATIC HEAT-
ING OPERATION): Raise the set temperature.
The operation starts after a while when the sys-
tem is in normal condition.
9. NOT A MALFUNCTION OF THE
AIR CONDITIONER
•
The remote controller displays “
”, and
air discharge stops.
This is because the system automatically
switches to DEFROST OPERATION to prevent
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 stops the operation due to
noise caused by devices other than the air con-
ditioner.
When the electrical noise decreases, the system
automatically restarts.
III. THE FAN SPEED IS DIFFERENT FROM THE
SETTING.
•
Even if the fan speed control button is
pressed, the fan speed does not change.
For the DEFROST OPERATION during the
COOLING OPERATION, the airflow rate is low-
ered to prevent the carryover of melted water.
After a while, the airflow rate can be changed.
(The airflow rate cannot be set for the PRO-
GRAM DRY OPERATION.)
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 air-
flow rate changes.
IV. AIR BLOW DIRECTION IS NOT AS SPECI-
FIED.
•
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 automatically
controlled.
After a while, the airflow direction can be
changed.
3P184442-10J_FM6.book Page 11 Wednesday, December 14, 2011 3:38 PM
