Operating instructions

En-13
TROUBLESHOOTING
Symptom Problem See Page
CHECK
ONCE
MORE
Does not operate at all:
●
Has the circuit breaker been turned off?
●
Has there been a power failure?
●
Has a fuse blown out, or a circuit breaker been tripped?
—
●
Is the timer operating?
6 to 9
Poor cooling (or heating*)
performance:
●
Is the air fi lter 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 sun-
light 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? —
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off electric
breaker, and consult with authorized service personnel.
OPERATING TIPS
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
unit is equipped with a microcomputer-controlled automatic
defrosting function. During the defrost cycle, the indoor fan will
shutdown and
will be displayed on the remote control-
ler. It will take anywhere from 4 to 15 minutes before the air
conditioner starts up again.
● 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.
Dual Remote Controllers (optional)
An additional remote controller can be added up to the
maximum of 2 remote controllers. Either remote controller
can control the air conditioner. However, the timer functions
cannot be used at the secondary unit.
Group Control
1 remote controller can control up to 16 air conditioners. All of
the air conditioners will be operated with the same settings.
Group control cannot be used when using it by the
multi type.
Heating Performance*
● This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that heat
indoors. As a result, the operating performance 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 type 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 fi rst starting the air conditioner until the
room is heated.
When Indoor and Outdoor Temperature
are High*
When both indoor and outdoor temperatures are high during use
of the heating mode, the outdoor unit’s fan may stop at times.
Low Ambient Cooling
When the outdoor temperature drops, the outdoor unit’s fans may
switch to Low Speed, or one of the fans may stop intermittently.
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
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