Fujitsu ARTG45LHTB User Manual

8. TROUBLESHOOTING
WARNING
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.
8-1. Troubleshooting (general)
Beforerequestingservice,performthefollowingchecks:
Symptom Items to check
See
Page
NORMAL
FUNCTION
Noiseisheard: •Duringoperationand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coolantowing).
—
*•Duringheatingoperation,asizzlingsoundmaybeheardoccasionally.
This sound is produced by the automatic defrosting operation.
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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 mist-
ing.
—
*•During heating operation, the outdoor unit’s fan may stop, and steam
may be seen rising from the unit. This is due to the automatic defrost-
ing operation.
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Airowisweakorstops: *•When heating operation is started, fan speed is temporarily very low,
to allow internal parts to warm up.
*•During heating operation, if the room temperature rises above the
thermostat setting, the outdoor unit will stop, and the indoor unit will
operate at very low fan speed. If you wish to warm the room further,
set the thermostat to a higher setting.
—
*•During heating operation, the unit will temporarily stop operation
(maximum 15 minutes) as the automatic defrosting mode operates.
During the automatic defrosting operation, will be shown on the
remote controller display.
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•The fan may operate at very low speed during dry operation or when
the unit is monitoring the room’s temperature.
—
•In the monitor AUTO operation, the fan will operate at very low speed.
—
Water is produced from
theoutdoorunit:
*•During heating operation, water may be produced from the outdoor
unit due to the automatic defrosting operation.
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The FILTER indicator
blinks:
•Cleanthelter.Afterwards,turntheFILTERindicatoroff.
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thermo sensor
display on the remote
controllerisashing:
•The room temperature sensor may be malfunctioning. Please consult
authorized service personnel.
—
Airowisstoppedand
is displayed on the
icon display of the “Moni-
tor”screen:
Airowisstoppedduetotheautomaticdefrosting,oilrecovery,ormode
mismatch. Refer to the operating manual of the relevant indoor unit.
─
Order of timer patterns
from [Time 1] to [Time 8]
in [Weekly timer setting]
is different from what you
registered:
If more than 2 timer patterns per a day are registered in [Weekly timer
setting] and they are not in proper time order, those patterns are sorted
automaticallyintimeorderwhenyounalizethe[Weeklytimersetting].
(Sorting function)
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Fujitsu ARTG45LHTB Specifications

General

Brand	Fujitsu
Model	ARTG45LHTB
Category	Air Conditioner
Language	English