8 Troubleshooting
Installation and operation manual
11
FAA71+100BUV1B
Split system air conditioner
3P654518-1A – 2021.03
6
Close the front panel slowly.
7.2.3
To clean the air filter
NOTICE
Do NOT use water of 50°C or higher.
Possible
consequence:
Discoloration and deformation.
When to clean the air filter
:
▪ Rule of thumb: Clean every 6 months. If the air in the room is
extremely contaminated, increase the cleaning frequency.
▪ Depending on the settings, the user interface can display the
"Time to clean filter"
notification. Clean the air filter when the
notification is displayed.
▪ If the dirt becomes impossible to clean, change the air filter
(= optional equipment).
How to clean the air filter
:
1
Open the front panel.
Hold the front panel by the panel tabs on
both sides and open until the panel stops.
a
a
Panel tab
2
Remove the air filter.
Push up the tab in the center of the air
filter slightly then pull the air filter out in a downward direction.
3
Clean the air filter
. Use a vacuum cleaner or wash with water.
If the air filter is very dirty, use a soft brush and neutral
detergent.
4
Dry the air filter in the shadow.
5
Reattach the air filter.
Replace the air filter as it was.
6
Close the front panel.
Hold the front panel by the panel tabs
on both sides and close it slowly.
7
Turn ON the power.
8
To remove warning screens, see the reference guide of the
user interface.
7.3
About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
Refrigerant type: R410A
Global warming potential (GWP) value: 2087.5
NOTICE
Applicable legislation on
fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent
tonnes:
GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Please contact your installer for more information.
WARNING: MILDLY FLAMMABLE MATERIAL
The R32 refrigerant (if applicable) in this unit is mildly
flammable. Refer to the outdoor unit specifications for the
type of refrigerant to be used.
WARNING
The appliance using R32 refrigerant shall be stored so as
to prevent mechanical damage and in a well-ventilated
room without continuously operating ignition sources (e.g.
open flames, an operating gas appliance, or an operating
electric heater). The room size shall be as specified in the
General safety precaution.
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
WARNING
R410A is a non-combustible refrigerant, and R32 is a
mildly flammable refrigerant; they normally don’t leak. If the
refrigerant leaks in the room and comes into contact with
fire from a burner, a heater, or a cooker, this may result in
a fire (in case of R32), or the formation of a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer from where you purchased
the unit.
Do not use the unit until a service person confirms that the
part from which the refrigerant leaked has been repaired.
8
Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
Stop operation and shut off the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electric shock or fire. Contact your dealer.
The system MUST be repaired by a qualified service person.
Malfunction
Measure
If a safety device such as a fuse, a
circuit breaker or a residual current
device frequently actuates or the ON/
OFF switch does NOT function properly.
Turn OFF all main power
supply switches to the
unit.
If water leaks from the unit.
Stop operation.
