Troubleshooting - Fujitsu ASWX18FAT Operating Manual

TROUBLESHOOTING

WARNING!
Before requesting service, perform the following checks:
Symptom
NORMAL Doesn't operate
FUNCTION immediately:
Noise is heard:
Smells:
Mist or steam are
emitted:
Airfl ow is weak or
stops:
CHECK Doesn't operate
ONCE at all:
MORE
Poor Cooling
performance:
The unit operates
differently from the
Remote Controller's
setting:
If the problem persists after performing these checks, or if you notice burning smells, or both the ORERATION Indicator
Lamp [Fig. 4 (4-1)] and the TIMER Indicator Lamp [Fig. 4 (4-2)] fl ashes, or only the TIMER Indicator Lamp [Fig. 4 (4-2)]
fl ashes, immediately stop operation, disconnect the Power Supply, and consult authorized service personnel.
En-15
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electri-
cal 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.
● 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 Supply 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 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.
● 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 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.
● The fan may operate at very low speed during Dry operation or when the
unit is monitoring the room's temperature.
● During SUPER QUIET operation, the fan will operate at very low speed.
● In the monitor AUTO operation, the fan will operate at very low speed.
● 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?
● 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 comput-
ers inside the room, or are there too many people in the room?
● Is the unit set for SUPER QUIET operation?
● Are the Remote Controller's batteries dead?
● Are the Remote Controller's batteries loaded properly?
Problem
See
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