Fujitsu Air Konditioner Compact Wall Mounted Type Air Conditioner User Manual


 
En-16
TROUBLESHOOTING
Symptom
Doesn’t operate at all:
Poor Cooling (or Heating)
performance:
The unit operates
differently from the Remote
Controller’s setting:
See Page
8 - 9
6
5
CHECK ONCE
MORE
Items to check
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 timer operating?
Is the Air Filter dirty?
Are the air conditioner’s intake grille or outlet port blocked?
Did you adjust the room temperature settings (thermostat) cor-
rectly?
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?
Is the unit set for SUPER QUIET operation?
Are the Remote Controller’s batteries dead?
Are the Remote Controller’s batteries loaded properly?
OPERATING TIPS
If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp
(Fig. 3
5
) and the TIMER Indicator Lamp (Fig. 3
6
) fl ashes, and ECONOMY Indicator Lamp(Fig.3
7
) fl ashes fast. immedi-
ately stop operation, turn off the electrical breaker and consult authorized service personnel.
Operation and Performance
Heating Performance
This air conditioner operates on the heat-pump princi-
ple, absorbing heat from outdoor air and transferring
that heat to indoor unit. As a result, the operating per-
formance is reduced as outdoor air temperature drops.
If you feel that insuffi cient 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
recirculating 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.
Microcomputer-controlled Automatic Defrosting
When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating per-
formance.
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 conditioner will temporarily stop, and the de-
frosting circuit will operate briefl y (for about 7-15 min-
utes).
During Automatic Defrosting operation, the OPERATION
Indicator Lamp (green) will fl ash.
After heating operation stops, if frost forms on the out-
door unit, the unit will start Automatic Defrosting op-
eration. At this time, the outdoor unit will automatically
stop after operating for a few minutes.