9 Disposal
Installation and operation manual
11
FXSN50~112A2VEB
CO
₂
Conveni-Pack: indoor unit
4P602815-1C – 2020.05
Malfunction
Measure
The system operates
but cooling or heating
is insufficient.
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles and make sure
the air can flow freely.
▪ Check if the air filter is clogged (see
"7.2.2 To clean the air filter"
9]).
▪ Check the temperature setting. Refer to
the manual of the user interface.
▪ Check if the fan speed setting is set to
low speed. Refer to the manual of the
user interface.
▪ Check if the air flow angle is proper.
Refer to the manual of the user interface.
▪ Check for open doors or windows. Close
doors and windows to prevent wind from
coming in.
▪ Check if direct sunlight enters the room.
Use curtains or blinds.
▪ Check if there are too many occupants in
the room during cooling operation. Check
if the heat source of the room is
excessive.
▪ If the heat source of the room is
excessive (when cooling). Cooling effect
decreases if heat gain of the room is too
large.
Operation stops
suddenly.
(user interface
operation lamp or
display blinks)
▪ Check if the air filter is clogged (see
"7.2.2 To clean the air filter"
9]).
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles, turn the breaker
OFF and back ON. If the lamp or display
still blinks, contact your dealer.
An abnormal function
happens during
operation.
▪ The air conditioner may malfunction
because of lightning or radio waves. Turn
the breaker OFF and back ON.
8.1
Symptoms that are NOT system
malfunctions
The following symptoms are NOT system malfunctions:
8.1.1
Symptom: The system does not operate
▪ The air conditioner does not start immediately after the ON/OFF
button on the user interface is pressed. If the operation lamp
lights, the air conditioner is in normal condition. It does not restart
immediately because one of its safety devices actuates to prevent
the air conditioner from being overloaded. The air conditioner will
turn on again automatically after 3 minutes.
▪ The air conditioner does not start immediately after the power
supply is turned on. Wait 1 minute until the microcomputer is
prepared for operation.
▪ The air conditioner does not restart immediately when the
temperature setting button is returned to its former position after
pushing. It does not restart immediately because one of its safety
devices actuates to prevent the air conditioner from being
overloaded. The air conditioner will turn on again automatically
after 3 minutes.
▪ The outdoor unit has stopped air conditioning (refrigeration
continues). This is because the room temperature has reached
the set temperature. The unit switches to fan operation. The actual
operation is different from the user interface setting.
▪ The fan speed is different from the setting. Pressing the fan speed
control button does not change the fan speed. When the room
temperature reaches the set temperature in heating mode or the
unit’s maximum capacity is reached, the outdoor unit will stop air
conditioning (refrigeration continues) and the indoor unit will
operate in fan only mode (low fan speed). This is to prevent cool
air from being blown directly onto anyone present in the room.
8.1.2
Symptom: Dust comes out of the unit
When the unit is used for the first time in a long time. This is
because dust has gotten into the unit.
8.1.3
Symptom: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes, etc.,
and then emit it again.
9
Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
