En-13
TROUBLESHOOTING
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical
breaker or disconnect the power supply plug, and consult authorized service personnel.
Merely turning off the unit’s power switch will not completely disconnect the unit from the power source.
Always be sure to turn off the electrical breaker or disconnect the power supply plug to ensure that
power is completely off.
Before requesting service, perform the following checks:
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, immediately stop operation, disconnect the Power Supply Plug (Fig. 1 D), and
consult authorized service personnel.
WARNING!
Symptom Problem
See Page
NORMAL
FUNCTION
Doesn’t operate immedi-
ately:
● If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent fuse
blowouts.
●
Whenever the Power Supply Plug is disconnected and then recon-
nected to a power outlet, the protection circuit will operate for about
3 minutes, preventing unit operation during that period.
—
Noise is heard:
● During operation and immediately after stopping the unit, the sound
of water fl owing in the air conditioner’s piping may be heard. Also,
noise may be particularly noticeable for about 2 to 3 minutes after
starting operation (sound of coolant fl owing).
● During operation, a slight squeaking sound may be heard. This is the
result of minute expansion and contraction of the front cover due to
temperature changes.
—
Smells:
● Some smell may be emitted from the indoor unit. This smell is the
result of room smells (furniture, tobacco, etc.) which have been taken
into the air conditioner.
—
Mist or steam are
emitted:
● During Cooling or Dry operation, a thin mist may be seen emitted
from the indoor unit. This results from the sudden Cooling of room air
by the air emitted from the air conditioner, resulting in condensation
and misting.
—
Airfl ow is weak or stops:
● The fan may operate at very low speed during Dry operation or when
the unit is monitoring the room’s temperature.
5
●
During SUPER QUIET operation, the fan will operate at very low speed.
5
●
In the monitor AUTO operation, the fan will operate at very low speed.
5
CHECK ONCE
MORE
Doesn’t operate at all:
● 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?
—
● Is the timer operating?
7-8
Poor Cooling perform-
ance:
● 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 com-
puters inside the room, or are there too many people in the room?
—
● Is the unit set for SUPER QUIET operation?
5
The unit operates
differently from the Remote
Control Unit’s setting:
● Are the Remote Control Unit’s batteries dead?
● Are the Remote Control Unit’s batteries loaded properly?
4
9317433037-03_EN.indd 139317433037-03_EN.indd 13 2/26/2013 11:20:04 AM2/26/2013 11:20:04 AM
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