English
12
9-1. FUQ
The following symptoms do not indicate air con-
ditioner malfunction
•
HEATING OPERATION within 6 hours after the
power is supplied to the air conditioner.
Some model series perform the following opera-
tion to protect the devices.
If the HEATING OPERATION is performed within
6 hours after the power is supplied to the air condi-
tioner, the indoor fan stops for about 10 minutes dur-
ing the outdoor unit operation to protect the devices.
The above operation is performed not only for
installation, but every time the power circuit
breaker is turned off/on.
For comfortable use, do not turn off the power cir-
cuit breaker during seasonal use of the HEATING
OPERATION.
I. THE AIR CONDITIONER DOES NOT OPERATE
• The air conditioner does not restart immedi-
ately after the ON/OFF button is pressed.
• The air conditioner does not restart
immediately when TEMPERATURE SET-
TING button is returned to the former
position after pushing the button.
If the OPERATION lamp lights, the air condi-
tioner is in normal condition.
It does not restart immediately because a
safety device operates to prevent overload of
the air conditioner.
After 3 minutes, the air conditioner will start
again automatically.
• The air conditioner does not start when
the display shows “
” and it
flashes for few seconds after pressing an
operation button.
This is because the air conditioner is under
centralized control.
Flashes on the display indicates that the air
conditioner cannot be controlled by the
remote controller.
• HEATING OPERATION within 6 hours after
power is supplied to the air conditioner.
Some model series perform the following
operation to protect the devices.
If the HEATING OPERATION is performed
within 6 hours after power is supplied to the
air conditioner, the indoor fan stops for about
10 minutes during the outdoor unit operation
to protect the devices.
The above operation is performed not only
for installation, but every time the power cir-
cuit breaker is turned off/on.
9. NOT MALFUNCTION OF THE
AIR CONDITIONER
For comfortable use, do not turn off the
power circuit breaker during seasonal use of
the HEATING 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 COOLING OPERATION):
Lower the set temperature.
HEATING OPERATION
(AUTOMATIC HEATING OPERATION):
Raise the set temperature.
The operation starts after a while when the
air conditioner is in normal condition.
• The remote controller displays “
”,
and airflow stops.
This is because the air conditioner automati-
cally switches to the DEFROST OPERATION
to prevent a decrease in heating capacity
when frost on the outdoor unit increases.
After maximum 10 minutes, the air condi-
tioner 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
indoor and outdoor units or indoor units and
remote controllers is shut off and stopped
due to noise caused by devices other than
the air conditioner.
When the electrical noise decreases, the air
conditioner automatically restarts.
III. THE FAN SPEED IS DIFFERENT FROM THE
SETTING
• Pressing the fan speed control button
does not change the fan speed.
During the COOLING OPERATION, the low
fan speed or a gentle wind is used to prevent
the discharge of melt water.
During the DEFROST OPERATION (HEAT-
ING OPERATION), the wind from the air con-
ditioner stops to prevent air discharge
directly toward your body. After a while, the
fan speed can be changed.
(The fan speed cannot be set for the PRO-
GRAM DRY OPERATION.)
When the room temperature reaches the set
temperature during the HEATING OPERA-
TION, the outdoor unit stops and the indoor
unit goes into gentle wind.
It takes some time until the fan speed changes.
Raise the set temperature.
After a while, the fan speed changes.
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