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II. 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 outdoor unit 
stops and the indoor unit switches to whisper 
mode. This is to prevent the cool air from being 
blown directly onto anyone in the room.

III. AIR BLOW DIRECTION IS NOT AS SPECIFIED.

Actual air blow direction is not as shown on 
the remote controller.

Automatic swing setting does not work.

Refer to “AIR FLOW DIRECTION ADJUST.”

IV. 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 HEAT-
ING OPERATION after DEFROST OPERA-
TION.

Moisture generated by DEFROST becomes 
steam and exists.

V. 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 flow “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.

VI. 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.

VII.THE UNITS GIVE OFF ODORS

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

VIII.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.

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, or 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 “ 

 ”, “UNIT No.”, and the OPERA-

TION lamp flash and the “MALFUNCTION 
CODE” appears.

9. TROUBLE SHOOTING

01_EN_3PN05140-5E.fm  Page 8  Friday, December 5, 2003  11:15 AM

Summary of Contents for FAQ71BUV1B x 2

Page 1: ...IT SYSTEM Air Conditioner OPERATION MANUAL MODELS Wall mounted type FAQ71BUV1B English Deutsch Fran ais Espa ol Italiano Nederlands Portugues Russian Cover TOP fm Page 1 Thursday December 11 2003 5 01...

Page 2: ...sed as simultaneous operation system PRECAUTIONS FOR GROUP CONTROL SYSTEM OR TWO REMOTE CONTROLLER CONTROL SYSTEM This system provides two other control systems beside individual control one remote co...

Page 3: ...s to be installed in a small room it is necessary to take proper mea sures so that the amount of any leaked refriger ant does not exceed the limiting concentration even when it leaks If the refrigeran...

Page 4: ...drop from the indoor unit COOLING 3 OPERATION RANGE OUTDOOR UNIT INDOOR OUTDOOR TEMPERATURE TEMPERA TURE HUMIDITY RZQ71 DB 18 to 37 80 or below DB 15 to 50 WB 12 to 28 HEATING DB Dry bulb temperature...

Page 5: ...y shows After 6 to 8 minutes maximum 10 minutes of DEFROST OPERATION the system returns to HEATING OPERATION 5 OPERATION PROCEDURE Regarding outside air temperature and heat ing capacity The heating c...

Page 6: ...position where adjustments are possible Your hand may get caught if you attempt to make adjustments while the unit is swinging Observe the following precautions to ensure the system operates Adjust t...

Page 7: ...VICE PERSONNEL B Washing with water When the air filter is very dirty use soft brush and neutral detergent Remove water and dry in the shade NOTE Do not wash the air conditioner with hot water of more...

Page 8: ...s 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 ex...

Page 9: ...mmediately after the stop of DEFROST OPERATION This is the noise of refrigerant caused by flow stop and flow change A continuous flow Shah sound is heard when the system is in COOLING OPERATION or at...

Page 10: ...NANCE 3 The system operates but it does not suffi ciently cool or heat If the air inlet or outlet of the indoor or the out door unit is blocked with obstacles Remove the obstacle and make it well vent...

Page 11: ...3PN05140 5E EM03A090 0401 HT Cover 1 fm Page 1 Friday December 5 2003 11 13 AM...

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