
En-21
TROUBLESHOOTING
Before requesting service, perform the following checks:
●
If the unit is stopped and then immediately started again, the compres-
sor will not operate for about 3 minutes, in order to prevent fuse blow-
outs.
●
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.
●
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.
●
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.
●
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.
●
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?
●
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 com-
puters inside the room, or are there too many people in the room?
●
Are the Remote Control Unit’s batteries dead?
●
Are the Remote Control Unit’s batteries loaded properly?
NORMAL
FUNCTIONS
CHECK ONCE
MORE
Symptom
Problem
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.
Doesn’t operate immedi-
ately:
Noise is heard:
Smells:
Mist or steam are
emitted:
Doesn’t operate at all:
Poor Cooling performance:
The unit operates
differently from the
Remote Control Unit’s
setting:
9385175310_OM_en.p65
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