TROUBLESHOOTING
CHECK
ONCE
MORE
Symptom
Doesn't operate at all:
•
•
•
Items
to
check
Is the Power Supply Plug disconnected its outlet?
Has
there been a power failure?
Has
a fuse blown out,
or
a circuit breaker been tripped?
See
Page
-
•
Is
the timer operating?
8-9
Poor
Cooling
or
Heating
performance:
i
•
• •
•
•
•
•
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 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?
The
unit
operates
differently from the
Remote
Control Unit's setting:
•
•
•
Is
the unit set
for
SUPER
QUIET operation?
Are the Remote Control Unit's batteries dead?
Are the Remote Control Unit's batteries loaded properly?
5
4
i
I
If
the problem persists after performing these checks,
or
if
you notice burning smells, or the TIMER indicator lamp (Fig. 3 ®)
flashes, immediately stop operation, disconnect the Power Supply Plug (Fig. 1 @), and consult authorized service personnel.
OPERATING TIPS
( Operation and Performance
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. If frost forms, the air conditioner will temporarily stop, and the defrosting circuit
will
operate briefly (for
about 7-15 minutes).
During Automatic Defrosting operation, the
OPERATION
indicator lamp (red)
will
flash .
• The
air
conditioner
power
has been interrupted
by
a
power failure. The air conditioner
will
then restart auto-
matically in its previous mode when the power is restored.
• Operated
by
setting before the
power
failure.
• If a power failure occurs during
TIMER
operation, the timer
will
be
reset
and
the 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 flash
(see
Page.
3».
• 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
disconnect the Power Supply Plug, reconnect it, and then
use the Remote Control Unit to resume operation.
En-17
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