Daikin FFQ25BV1B Operation Manual Download Page 14

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English

III. The fan speed is different from the setting.

•

Pressing the fan speed control button does
not change the fan speed.

When the room temperature reaches the set
temperature in heating mode, the power supply
from the outdoor unit is stopped and the indoor
unit will operate on the low fan setting. (If using
the multi system, the fan will alternate between
off and low.)
This is to prevent the cool air from being blown
directly onto anyone in the room.

IV. AIR BLOW DIRECTION IS NOT AS SPECI-

FIED.

• Actual air blow direction is not as shown on

the remote contoller.

• Automatic swing setting does not work.

Refer to “AIR FLOW DIRECTION ADJUST.”

V. 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.

VI.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 flowing sound "Shah"or a trick-

ling sound "Jyuru Jyuru"are 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.

VII.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.

VIII.THE UNITS GIVE OFF ODORS

The unit absorbs the smell of rooms, furniture,
cigarettes, etc., and then emits them.

IX.THE LIQUID CRYSTAL OF THE REMOTE

CONTROLLER SHOW “

”

• It happens immediately after the main power

supply switch is turned on.

This shows that the remote controller is in nor-
mal condition.
This continues temporary.

X. THE ROOM TEMPERATURE DOES NOT DROP

• The air conditioner is in program dry opera-

tion.

The air conditioner in program dry operation
does not drop the room temperature as much as
possible. See page 5-6 “OPERATION PROCE-
DURE”.

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 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 fire.

• 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 “