Fujitsu Room Air Conditioners, Руководство по эксплуатации

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En-17
TROUBLESHOOTING
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
) ashes, immediately 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 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 insuf 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 recircu-
lating air throughout the room, with the result that some time
may be required after 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 performance.
In order to prevent this kind of reduced performance, this air
conditioner is equipped with a Microcomputer-controlled Au-
tomatic Defrosting function. If frost forms, the air conditioner
will temporarily stop, and the defrosting circuit will operate
brie y (for about 7-15 minutes).
During Automatic Defrosting operation, the OPERATION
Indicator Lamp will ash, and the DEFROST Indicator Lamp
will light.
●
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 operating
for a few minutes.
(However, some type of multi-type air conditioner doesn’t
provide this function.)
Symptom Items to check See Page
CHECK ONCE
MORE
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 timer operating?
8 - 9
Poor Cooling (or Heating)
performance:
●
Is the Air Filter dirty?
●
Air the air conditioner’s intake grille or outlet port blocked?
●
Did you adjust the room temperature settings (thermostat)
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?
—
●
Is the unit set for QUIET operation? 6
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?
5
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