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16
English
NOT MALFUNCTION OF THE AIR CONDITIONER
MALFUNCTIONS
CAUSES
The system does not oper-
ate.
The system does not restart immediately after the ON/
OFF button is pressed.
The system is in its normal operat-
ing condition when the operation
lamp on the remote controller is on.
It does not restart immediately
because the safety device is pro-
tecting the system. The system will
turn on again automatically after
three minutes.
The system does not restart immediately after the TEM-
PERATURE SETTING button is turned to its former posi-
tion after pushing.
The system does not start when the display show “
”
and it flashes for a few seconds after pressing an opera-
tion button.
This is because the system is
under centralized control. Flashes
on the display indicate that the sys-
tem cannot be controlled by the
remote controller.
The system does not start immediately after the power
supply is turned on.
Wait 1 minute until the micro com-
puter is prepared for operation.
White mist comes out of a
unit.
When humidity is high during COOLING OPERATION (in
oily or dusty places).
If the inside of an indoor unit is
extremely contaminated, the tem-
perature distribution inside a room
becomes uneven. (*1)
When the system is changed over to HEATING OPERA-
TION after DEFROST OPERATION.
Moisture generated by DEFROST
becomes steam and exists.
Outdoor unit turns heated.
During the shutdown period.
The compressor is pre-heating so
that the air conditioner can start
smoothly.
Noise of air conditioners.
The noise “Zeeen” which is generated immediately after
the start of operation.
This kind of noise occurs after the
operation of the temperature con-
troller. The sound will be reduced in
about a minute.
A continuous flow “Shuh” sound is heard when the sys-
tem is in COOLING or DEFROST OPERATION.
This is a sound generated when
the gas (refrigerant) is being flowed
into each indoor unit and outdoor
unit.
A “Shuh” sound which is heard at the start or immediately
after the stop of operation or which is heard at the start or
immediately after the stop of DEFROST OPERATION.
This is the noise of refrigerant
caused by flow stop and flow
change.
Dust from the units.
Dust may blow out from the unit after starting operation
from long resting time.
Dust absorbed by the indoor unit
blows out.
The units give off odors.
During operation.
This is because that the smell of
outdoor unit or cigarettes odor
stuck to inner part of the indoor unit
is being blown out.
The remote controller shows
“
”.
It happens immediately after the main power supply
switch is turned on.
This shows that the remote control-
ler is in inspection condition.
It is an instantaneous indication.
NOTE
*1
Cleaning of the inner part of the indoor unit is necessary. As special technique is required for such cleaning, please consult
with your dealer.
01_EN_3PR05311-1.fm Page 16 Tuesday, June 2, 2009 3:36 PM