Not Malfunction Of The Air Conditioner - Daikin FCQ71DV3B Operation Manual

• To protect the unit, turn on the main power switch
at least 6 hours before operation.
WHAT TO DO WHEN STOPPING THE SYS-
TEM FOR A LONG PERIOD
Turn on FAN OPERATION for a half day and dry
the unit.
• Read the operation manual attached to the
remote controller.
Cut off the power supply.
• When the main power switch is turned on, some
watts of electricity is being used even if the sys-
tem is not operating.
Turn off the main power supply switch for saving
energy.
• The display on the remote controller will vanish
when the main power switch is turned off.
Clean the air filter and the exterior.
• Be sure to replace the air filter to its original place
after cleaning. Refer to "MAINTENANCE".
8. NOT MALFUNCTION OF THE AIR
CONDITIONER
The following symptoms do not indicate air condi-
tioner malfunction
I. THE SYSTEM DOES NOT OPERATE
• The system does not restart immediately
after the ON/OFF button is pressed.
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 3 minutes, the system will turn on
again automatically.
• 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 3 minutes, the system will turn on
again automatically.
• The system does not start when the display
shows " " (UNDER CENTRALIZED
CONTROL) and it flashes for a few seconds
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.
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• The system does not start immediately after
the power supply is turned on.
Wait one minute until the micro computer is pre-
pared for operation.
II. WHITE MIST COMES OUT OF A UNIT
• When humidity is high during cooling opera-
tion. (In oily or dusty places)
If the inside of an indoor unit is extremely con-
taminated, the temperature distribution inside a
room becomes uneven. It is necessary to clean
the inside of the indoor unit. Ask your Daikin
dealer for details on cleaning the unit. This oper-
ation requires a qualified service person.
• When the system is changed over to HEATING
OPERATION after DEFROST OPERATION.
Moisture generated by DEFROST becomes
steam and exists.
III. NOISE OF AIR CONDITIONERS
A ringing sound after the unit is started.
This sound is generated by the temperature reg-
ulator working.
It will quiet down after about a minute.
• A continuous flow "Shuh" sound is heard
when the systems is in COOLING or
DEFROST OPERATION.
This is the sound of refrigerant gas flowing
through both indoor and outdoor units.
• 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.
• A continuous low "Shah" sound is heard
when the system is in COOLING OPERATION
or at a stop.
The noise is heard when the drain pump is in
operation.
• A "Pishi-pishi" squeaking sound is heard
when the system is in operation or after the
stop of operation.
Expansion and contraction of plastic parts
caused by temperature change makes this noise.
IV. DUST FROM THE UNITS
• Dust may blow out from the unit after starting
operation from long resting time.
Dust absorbed by the unit blows out.
V. THE UNITS GIVE OFF ODORS
The unit absorbs the smell of rooms, furniture,
cigarettes, etc., and then emits them.
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