En-15
TROUBLESHOOTING
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical
breaker 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 to ensure that power is completely off.
Before requesting service, perform the following checks:
WARNING!
Symptom
Problem
See Page
NORMAL
FUNCTION
Doesn’t operate immedi-
ately:
●
If the indoor 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 electrical breaker is turned off then on again
the protection circuit will operate for about 3 minutes, pre-
venting unit operation during that period.
—
Noise is heard:
●
During operation or immediately after stopping the unit, the
sound of water 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 refrigerant
owing).
●
During operation, a slight squeaking sound may be heard.
This is the result of minute expansion and contraction of the
front panel 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 indoor unit.
—
Mist or steam is
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 cool air emitted from the indoor
unit, resulting in condensation and misting.
—
Air ow is weak or stops:
●
During Dry mode, the indoor unit will operate at low speed;
in order to adjust room humidity, the indoor unit’s fan may
stop from time to time. Also, the fan may operate at very low
speed when adjusting room humidity.
7
●
During SUPER QUIET operation, the fan will operate at very
low speed.
6
●
In the monitor of AUTO operation, the fan will operate at very
low speed.
7
CHECK ONCE
MORE
Doesn’t operate at all:
●
Has the circuit breaker been turn off?
●
Has there been a power failure?
●
Has a fuse blown out, or a circuit breaker been tripped?
—
●
Is the timer operating?
8 - 9
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
and computers inside the room, or are there too many people
in the room?
—
●
Is the unit set for SUPER QUIET operation?
6
The unit operates
differently from the Remote
Controller’s setting:
●
Are the Remote Controller’s batteries dead?
●
Are the Remote Controller’s batteries loaded properly?
5
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
) ashes and ECONOMY Indicator Lamp (Fig.3
7
) ashes fast, immediately stop operation,
turn off the electrical breaker and consult authorized service personnel.
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