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• The system does not start when the display shows 

” (UNDER CENTRALIZED CONTROL) 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 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 6 hours until the micro computer is prepared for oper-
ation.

• The outdoor unit is stopped.

This is because the room temperature has reached the set 
temperature. The indoor unit switches to fan operation.
Cooling operation (automatic cooling operation): Lower 
the set temperature.
Heating operation (automatic heating operation): Raise 
the set temperature.
The operation starts after a while when the system is in 
normal condition.

• The remote controller displays “

”, and air dis-

charge stops.

This is because the system automatically switches to 
DEFROST operation to prevent a decrease in heating 
capacity when frost on the outdoor unit increases.
After 6 to 8 minutes (maximum 10 minutes), the system 
returns to its original 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 dealer for details on cleaning the unit. This 
operation requires a qualified service person.

• When the system is changed over to HEATING OPER-

ATION after DEFROST OPERATION.

Moisture generated by DEFROST becomes steam and 
exists.

When the remote controller display shows “

”, 

defrosting operation is being used.

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 
OPERATION. 

This is the noise of refrigerant caused by flow stop and 
flow change.
During heating operation, the system switches to 
DEFROST operation automatically. The remote controller 

shows “

”.

After 6 to 8 minutes (maximum 10 minutes), the system 
returns to its original operation.

• 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 tem-
perature change makes this noise.

IV. DUST FROM THE UNITS

• Dust may blow out from the unit after starting opera-

tion 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.
If odor is a concern, set the airflow rate to gentle or no air-
flow when the indoor temperature reaches the set temper-
ature.
For details, contact your Daikin dealer.

VI.THE LIQUID CRYSTAL OF THE REMOTE CONTROL-

LER SHOW “

• It happens immediately after the main power supply 

switch is turned on.

This shows that the remote controller is in normal condition.
This continues temporary.

VII.THE AIR FLOW DIRECTION IS DIFFERENT FROM THE 

DISPLAY.

• The air direction blades do not swing when Automatic 

swing setting.
<When heating operation>

When room temperature is higher than the set temperature, 
air is blown horizontally to prevent the cool air from being 
blown directly onto anyone in the room. 
After a while, air direction blades swings. (Refer to page 8)

• The movement of air direction blades is different from 

the display.
<When heating operation>

When room temperature is higher than the set temperature, 
air is blown horizontally to prevent the cool air from being 
blown directly onto anyone in the room. 
After a while, air direction blades changes it according to 
the setting. (Refer to page 8)

VIII.THE UNIT DOES NOT COOL EFFECTIVELY

• Program dry operation.

Program dry operation is designed to lower the room tem-
perature as little as possible.
Lower the room temperature using cooling operation, and 
then use program dry operation.

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 qualified service person.

WARNING

• When the air conditioner is in abnormal conditions 

(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 supply switch.

• If the ON/OFF button does not properly work;

Measure:

 Turn off the main power supply switch.

• If water leaks from unit.

Measure:

 Stop the operation.

01_EN_3P177429-9S.fm  Page 12  Saturday, October 16, 2010  2:24 PM

Summary of Contents for FCQ50KVEA

Page 1: ...for purchasing this Daikin air conditioner Carefully read this operation manual before using the air conditioner It will tell you how to use the unit properly and help you if any trouble occurs This m...

Page 2: ...EST C hr hr TEST NOT AVAILABLE L H 2 9 10 3 1 4 5 6 7 13 14 15 16 17 18 19 20 21 11 8 12 a c d e l m g f h i k j e b d n RZQ100 125 140 RZQ 50 60 71 C hr H 3 figure 1 00_CV_3P177429 9S fm Page 2 Satur...

Page 3: ...N They both contain important information regarding safety Be sure to observe all precautions without fail WARNING Failure to follow these instructions properly may result in personal injury or loss o...

Page 4: ...ve oily smoke such as cooking rooms or in places with flammable gas corrosive gas or metal dust Using the product in such places may cause fire or prod uct failures Do not use flammable materials e g...

Page 5: ...ing If water gets into the remote controller there is a risk of electrical leakage and damage to electronic compo nents Watch your steps at the time of air filter cleaning or inspection High place wor...

Page 6: ...button Press the button and the system will start Press the button again and the system will stop 2 OPERATION lamp RED The lamp lights up during operation 3 DISPLAY UNDER CENTRALIZED CONTROL When thi...

Page 7: ...on running for about 1 minute after the heating operation stops To start the next operation smoothly ATTENTION Do not turn OFF power immediately after the unit stops Then wait no less than 5 minutes W...

Page 8: ...mfortable environment Avoid excessive heating or cooling Prevent direct sunlight from entering a room during cooling operation by using curtains or blinds Ventilate the room regularly Using the unit f...

Page 9: ...shade NOTE Do not wash the air conditioner with hot water of more than 50 C as doing so may result in discoloration and or defor mation Do not expose it to fire as doing so may result in burning 4 Fi...

Page 10: ...h is connected Might there be a broken wire somewhere Contact your dealer if there are any problems Clean the air filter and outside panels After cleaning the air filter make sure to attach it Turn on...

Page 11: ...ntinuous 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 i...

Page 12: ...it well ventilated Check if the air filter is clogged Ask a qualified service person to clean the air filters Refer to MAINTENANCE 3 The system operates but it does not sufficiently cool or heat If th...

Page 13: ...3P177429 9S EM10A035 1011 HT 00_CV_3P177429 9S fm Page 3 Saturday October 16 2010 2 12 PM...

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