Self-Diagnosis - Fujitsu ARTG12LL Operating Manual

OPERATING TIPS
AUTO Restart
In Event of Power Interruption
● Should the power supply to the air conditioner be interrupted
by a power failure, the air conditioner will restart automatically
in the previously selected mode once the power is restored.
Multi-type Air conditioner
This indoor unit can be connected to a multi-type outdoor unit. The multi-type air conditioner allows multiple indoor units to be oper-
ated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective output.
Simultaneous Use of Multiple Units
Instructions relating to inverter (
● When using a multi-type air conditioner, the multiple indoor
units can be operated simultaneously, but when 2 or more
indoor units of the same group are operated simultaneously,
the heating and cooling ef¿ ciency will be less than when a
single indoor unit is used alone. Accordingly, when you wish
to use more than 1 indoor unit for cooling at the same time,
the use should be concentrated at night and other times
when less output is required. In the same way, when multiple
units are used simultaneously for heating, it is recommended
that they be used in conjunction with other auxiliary space
heaters, as required.
● Seasonal and outdoor temperature conditions, the structure
of the rooms and the number of persons present may also
result in differences of operating ef¿ ciency. We recommend
that you try various operating patterns in order to con¿ rm the
level of heating and cooling output provided by your units,
and use the units in the way that best matches your family's
lifestyle.
● lf you discover that 1 or more units delivers a low level
of cooling or heating during simultaneous operation, we
recommend that you stop simultaneous operation of the
multiple units.
● Operation cannot be done in the following different operating
❖
modes.
Notice
*● During use of the heating mode, the outdoor unit will occa-
sionally commence the defrost operation for brief periods.
During the defrosting operation, if the user sets the indoor
unit for heating again, the defrosting mode will continue, and
the heating operation will begin after completion of defrost-
ing, with the result that some time may be required before
warm air is emitted.

SELF-DIAGNOSIS

When "Er" in Temperature Display is displayed, inspection of the air conditioning system is necessary. Please consult
authorized service personnel.
❖
) are applicable only to "INVERTER MODEL".
Unit number (usually "00")
ex. Self-diagnosis check
● Use of other electrical appliances (electric shaver, etc.) or
nearby use of a wireless radio transmitter may cause the air
conditioner to malfunction. In this event, temporarily discon-
nect the power supply, reconnect it, and then use the remote
controller to resume operation.
If the indoor unit is instructed to do an operating mode that it
cannot perform,
display and the unit will go into the standby mode.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
● Operation can be done in the following different operating
❖
modes.
Cooling mode and dry mode
Cooling mode and fan mode
Dry mode and fan mode
● The operating mode (heating mode or cooling (dry) mode)
❖
of the outdoor unit will be determined by the operating mode
of the indoor unit that was operated ¿ rst. If the indoor unit
was started in fan mode, the operating mode of the outdoor
unit will not be determined. For example, if indoor unit (A)
was started in fan mode and then indoor unit (B) was then
operated in heating mode, indoor unit (A) would temporarily
start operation in fan mode but when indoor unit (B) started
operating in heating mode,
(A) remote controller display and it would go into standby
mode. Indoor unit (B) would continue to operate in heating
mode.
*● During use of the heating mode, the top of the indoor unit
may become warm, but this is due to the fact that coolant is
circulated through the indoor unit even when it is stopped;
it is not a malfunction.
Error code
will be shown on the remote controller
will be shown on the unit
En-16