12
TROUBLESHOOTING
Before requesting service, perform the following checks:
Symptom
Problem
NORMAL
FUNCTIONS
Doesn’t operate immediately:
If the unit is stopped and then immediately started again, the compressor
●
will not operate for about 3 minutes, in order to prevent fuse blowouts.
Whenever the power plug is disconnected and then reconnected 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 flowing 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 flowing).
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 Drying 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.
CHECK
ONCE MORE
Doesn’t operate at all:
Is the power plug disconnected from its outlet?
●
Has there been a power failure?
●
Has a fuse blown out, or a circuit breaker been tripped?
●
Is the main power switch set to the OFF position?
●
Is the timer operating?
●
Poor Cooling performance:
Is the air filter dirty?
●
Are 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 or
●
computers inside the room, or are there too many people in the
room?
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?
●
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER Indicator Lamp flashes,
immediately stop operation, disconnect the Power Supply Plug, and consult authorized service personnel.
9385175273-02_OM.indb 12
20/12/2011 15:50:57
