Troubleshooting - Fujitsu AIRSTAGE AUXB004GLEH Operating Manual

Cleaning the Air Filter
When the filter lamp lights on, remove and clean the
filter.
1. Push the intake grille's hooks inward towards the
center of the unit to open the intake grille.
2. Pull out the filter from the intake grille.
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Grille Hook
3. Clean the air filter.
Remove the dust from the air filter by vacuuming or washing them. After
washing, allow the air filter to dry thoroughly in an area protected from
sunlight.
4. Re-attach the air filter to the intake grille.
(1) Replace the air filter into its holder.
(2) Make sure that the air filter makes contact with the filter stopper when
it is replaced into its holder.
5. Close the intake grille and push the intake grille's
hooks outward.
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Air Filter
Filter
Hook
Intake Grille
● Dust can be cleaned from the air filter either with a vacuum cleaner,
or by washing the filter in a solution of mild detergent and warm water.
If you wash the filter, be sure to allow it to dry thoroughly in a shady
place before reinstalling.
● If dirt is allowed to accumulate on the air filter, airflow will be reduced,
lowering operating efficiency and increasing noise.
● After turning the power on, press the filter button on the remote control
to turn off the filter lamp. (Refer to the operation manual packed with
remote control unit for details.)
Cleaning the body
Wash the body with warm water, and then dry with a clean and soft cloth.
When not using for an extended period
Leave the breaker on for at least 12 hours before starting operation when
it is to be used again.
En-3
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Air Filter
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Grille Hook

TROUBLESHOOTING

The following conditions are not breakdowns or op-
eration failures.
Doesn't operate immediately:
● If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent fuse
blowouts.
● Whenever the electrical breaker is turned off then on again, the protec-
tion circuit will operate for about 3 minutes, preventing unit operation
during that period.
Airflow is weak or stops:
● When Heating operation is started, indoor unit's fan may temporarily
stop, 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's fan
will stop. If you wish to warm the room further, set the thermostat for a
higher setting.
● During oil recovery operation, the airflow may stop for approximately
10 minutes. (See page 2)
● During Heating operation, the unit will temporarily stop operation (be-
tween 4 and 15 minutes) as the Automatic Defrosting mode operates.
(See page 2)
● The fan may operate at 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 low speed.
Flashing lamps:
● The OPERATION indicator lamp (green) flashes:
An oil recovery operation is being performed. (See page 2)
● The OPERATION indicator lamp (green) flashes:
An automatic defrosting operation is being per formed. (See page 2)
● The OPERATION indicator lamp (green) and TIMER indicator lamp
(orange) are flashing alternately:
It has recovered from a power outage.
● The OPERATION indicator lamp (green) and TIMER indicator lamp
(orange) are flashing simultaneously:
It is operating in trial operation mode. Ask a manager as there may be
maintenance being conducted.
● The OPERATION indicator lamp (green) lights up and the TIMER
indicator lamp (orange) flashes:
This is the standby state. (See page 2)
Noise is heard:
● In the following conditions there are sounds of water flowing from the
indoor unit and the operation sound becomes loud. These are the
sounds of the flowing of refrigerant.
When operation starts
When oil recovery operation finishes
When automatic defrosting operation finishes
● During operation, a slight squeaking sound may be heard. This is the
result of minute expansion and contraction of the panel due to tem-
perature changes.
● During Heating operation, a sizzling sound may be heard occasionally.
This sound is produced by the Automatic Defrosting operation. (See
page 2)
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.