Fujitsu 9319356051 User Manual

En-23

CHECK ONCE 

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Doesn’t operate at all:

●  Has the circuit breaker been turn off?

●  Has there been a power failure?

●  Has a fuse blown out, or a circuit breaker been tripped?

—

●  Is the intake grille completely closed?

20

●  Is the timer operating?

13 - 19

Poor Cooling (or Heating) 
performance:

●  Is the Air Filter dirty?

●  Are the air conditioner’s intake grille or outlet port blocked?

●  Did you adjust the room temperature settings (temperature) correctly?

●  Is there a window or door open?

●  In the case of Cooling operation, is a window allowing bright sunlight 

to enter? (Close the curtains.)

● In the case of Cooling operation, are there heating apparatus and 

computers inside the room, or are there too many people in the 
room?

—

●  Has OUTDOOR UNIT LOW NOISE not been set?

12

●  Is the unit set for SUPER QUIET operation?

7

The unit operates 
differently from the Remote 
Controller’s setting:

●  Are the Remote Controller’s batteries dead?

●  Are the Remote Controller’s batteries loaded properly?

6

If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp and  the 
TIMER Indicator Lamp fl ashes, and ECONOMY Indicator Lamp fl ashes fast. Immediately stop operation, turn off the electrical break-
er and consult authorized service personnel.

● This air conditioner operates on the heat-pump principle, 

absorbing heat from outdoor air and transferring that heat 

to indoor unit. As a result, the operating performance is 

reduced as outdoor air temperature drops. If you feel that 

insufficient heating performance is being produced, we 

recommend you use this air conditioner in conjunction with 

another kind of heating appliance.

● Heat-pump air conditioners heat your entire room by recir-

culating air throughout the room, with the result that some 

time may be required after fi rst starting the air conditioner 

until the room is heated.

●  When using the Heating mode under conditions of low out-

door temperature and high humidity, frost may form on the 

outdoor unit, resulting in reduced operating performance.

  In order to prevent this kind of reduced performance, this 

air conditioner is equipped with a Microcomputer-controlled 

Automatic Defrosting function. If frost forms, the air con-

ditioner will temporarily stop, and the defrosting circuit will 

operate briefl y (Max. 15 minutes).

  During Automatic Defrosting operation, the OPERATION 

Indicator Lamp (green) will fl ash.

● After heating operation stops, if frost forms on the outdoor 

unit, the unit will start Automatic Defrosting operation. At 
this time, the outdoor unit will automatically stop after oper-
ating for a few minutes.

● The power supply to the air conditioner is stopped by a 

power interruption. The air conditioner will then restart auto-

matically in its previous mode when the power is restored.

●  If a power interruption occurs during TIMER operation, the tim-

er will be reset and the indoor unit will begin (or stop) operation 

at the new time setting. In the event that this kind of timer fault 

occurs, the TIMER Indicator Lamp will fl ash (see page 4.).

● Use of other electrical appliances (electric shaver, etc.) or 

nearby use of a wireless radio transmitter may cause the air 

conditioner to malfunction. In this event, temporarily turn off 

the circuit breaker, turn it on and then use the Remote Con-
troller to resume operation.

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12/5/2011   3:25:52 PM

12/5/2011   3:25:52 PM