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7 Maintenance and service
Operation
Hot start
During hot start, the indoor unit fan will stop
operation, and the following icon will appear on the
home screen:
6.2.3
Adjusting the airflow direction
The following airflow directions can be set:
▪ Up and down direction (horizontal blades): Using user interface
(fixed position or swing)
▪ Left and right direction (vertical blades): Manually (fixed position
only)
a
b
a
Horizontal blades (up and down direction)
b
Vertical blades (left and right direction)
Up and down airflow direction setting
INFORMATION
For setting procedure of the airflow direction, see the
reference guide or the manual of the used user interface.
When the operation stops, the horizontal blades at the air outlet
close automatically.
The following airflow directions can be set:
Direction
Fixed position. The indoor unit
blows air in 1 of 5 fixed positions.
Swing. The indoor unit alternates
between the 5 positions.
Note: The recommended position of the horizontal blades (flaps)
varies according to the operation mode.
a
b
a
Cooling operation
b
Heating operation
WARNING
NEVER touch the air outlet or the horizontal blades while
the swing flap is in operation. Fingers may become caught
or the unit may break down.
Installation and operation manual
10
Description
b
Display
NOTICE
Avoid operating in the horizontal direction. It may cause
dew or dust to settle on the ceiling or flap.
Left and right airflow direction setting
The left and right airflow direction can be set only manually in fixed
position.
Make adjustments only after stopping the horizontal blade in order to
avoid injury and damage to the appliance. Set both groups of vertical
blades in a way so airflows do not cross; otherwise condensate may
drip.
b
b
a
Airflow
b
Vertical blades
6.3
To operate the system
INFORMATION
For setting of the operation mode, airflow direction or other
settings, see the reference guide or operation manual of
the user interface.
7
Maintenance and service
7.1
Precautions for maintenance and
service
NOTICE
Maintenance MUST be done by an authorised installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
CAUTION: Pay attention to the fan!
It is dangerous to inspect the unit while the fan is running.
Make sure to turn OFF the main switch before executing
any maintenance task.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it will
cause injury.
NOTICE
NEVER inspect or service the unit by yourself. Ask a
qualified service person to perform this work. However, as
end user, you may clean the air filter, suction grille and the
unit exterior.
FHA-A(9)
Split system air conditioner
3P668115-4E – 2022.11
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