Trouble Shooting - Daikin FCQ18PVJU Operation Manual

• The system does not start immediately
after the power supply is turned on.
Wait at least 5 minute until the micro computer
is prepared for operation.
II. WHITE MIST COMES OUT OF A UNIT
• When humidity is high during cooling op-
eration. (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 dealer for
details on cleaning the unit. This operation
requires a qualifi ed service person.
• When the system is changed over to HEAT-
ING OPERATION after DEFROST OPERA-
TION.
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
regulator working.
It will quiet down after about a minute.
• A continuous fl ow "Shuh" sound is heard
when the systems is in COOLING or DE-
FROST OPERATION.
This is the sound of refrigerant gas fl owing
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 immediate-
ly after the stop of DEFROST OPERATION.
This is the noise of refrigerant caused by fl ow
stop and fl ow change.
• A continuous low "Shah" sound is heard
when the system is in COOLING OPERA-
TION 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 start-
ing 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.
11
VI. THE LIQUID CRYSTAL OF THE REMOTE
CONTROLLER SHOW "
• It happens immediately after the main pow-
er supply switch is turned on.
This shows that the remote controller is in
normal condition.
This continues temporary.
10.

TROUBLE SHOOTING

I. If one of the following malfunctions occurs,
take the measures shown below and contact
your dealer.
The system must be repaired by a qualifi ed service
person.
WARNING
• When the air conditioner is in abnormal con-
ditions (smell of something burning, etc),
unplug the power cord from the outlet, and
contact your dealer
Continued operation under such circumstances
may result in a failure, electric shock, and fi re.
• If a safety device such as a fuse, a breaker or an
earth leakage breaker frequently actuates;
Measure: Do not turn on the main power switch.
• If the ON/OFF switch does not properly work;
Measure: Turn off the main power switch.
• If water leaks from unit.
Measure: Stop the operation.
• If the display " " (INSPECTION), "UNIT No.",
and the OPERATION lamp fl ash and the "MAL-
FUNCTION CODE" appears.
OPERATION lamp
UNIT No.
F
INDOOR UNIT No. in which a
malfunction occurs
INSPECTION
display
MALFUNCTION
CODE
Measure: Notify your dealer and inform him/her
of the display.
"
L H
English