Not Malfunction Of The Air Conditioner; Trouble Shooting - Daikin FBQ18PVJU Operation Manual

8. NOT MALFUNCTION OF THE AIR
CONDITIONER
The following symptoms do not indicate air conditioner malfunc-
tion
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 con-
dition.
It does not restart immediately because a safety device
operates to prevent overload of the system. After 3 minutes,
the system will turn on again automatically.
• The system does not restart immediately when TEM-
PERATURE SETTING button is returned to the former
position after pushing the button.
If the OPERATION lamp lights, the system is in normal con-
dition.
It does not restart immediately because a safety device
operates to prevent overload of the system. After 3 minutes,
the system will turn on again automatically.
• The system does not start when the display shows
" " and it flashes for a few seconds after pressing
CENTRAL
CONTROL
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 controller.
• The system does not start immediately after the power
supply is turned on.
Wait one minute until the micro computer is prepared for
operation.
II. 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
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 operation
requires a qualified service person.
• When the system is changed over to HEATING OPERA-
TION 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 regulator
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 immedi-
ately after the stop of operation or which is heard at the
start or immediately after the stop of DEFROST OPER-
ATION.
This is the noise of refrigerant caused by flow stop and flow
change.
6
• A continuous low "Shah" sound is heard when the sys-
tem 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 tem-
perature 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.

9. TROUBLE SHOOTING

I. If one of the following malfunctions occurs, take
the measures shown below and contact your
Daikin dealer.
The system must be repaired by a qualified service person.
WARNING
When the air conditioner is in abnormal condi-
tions (smell of something burning, etc), turn off
the power supply, and contact your dealer
Continued operation under such circumstances may result in
a failure, electric shock or fire.
• If a safety device such as a fuse, a breaker or a ground fault
circuit interrupter 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.
Cool
Set to
Cool 74
F
Error : Press Menu button
If an error occurs, either one of the follow-
ing items will flash in the basic screen.
"Error: Push Menu button"
* The operation lamp will flash.
"Warning: Push Menu button"
* The operation lamp will not flash.
Error code AI
Contact Info
0123-456-7890
Indoor Model ---/000
Outdoor Model ---/000
When pressing Menu/OK button, the error code will flash
and the service contact and model name or code may
appear.
Measure: Notify your Daikin dealer and inform him/her of the
display.
Operation
lamp
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