Malfunction
Measure
The unit does NOT
receive signals
from the remote
controller.
•
Check the batteries of the remote
controller. Refer to “3-2 To insert the
batteries” on page 5.
•
Make sure that the transmitter is NOT
exposed to direct sunlight.
•
Check if there are any electronic
starter type fluorescent lamps in the
room. Contact your dealer.
The remote
controller display is
blank.
Replace the batteries of the remote
controller.
An error code is
displayed on the
remote controller.
Consult your local dealer. Refer to
“8-2 Solving problems based on error
codes” on page 23 for a detailed list of
error codes.
Other electric
appliances start to
operate.
If the remote controller signals operate
other electric appliances, move the other
appliances away, and contact your dealer.
Drops of water form
on the front panel
Check if the unit is operating without the
front panel raised. Refer to “2-1 Indoor
unit” on page 3.
The LCD is blinking
and the remote
controller cannot be
operated.
Battery power has run out. Replace both
batteries at the same time with new size
AAA.LR03 (alkaline) batteries. Leaving
exhausted batteries in the remote
controller can result in injury due to
battery leakage, rupturing or heating, or
lead to equipment failure.(Even when the
LCD is blinking,
remains functional.)
Unable to use the
remote controller
after exchanging the
batteries
Remove the batteries for approximately
1 minute, or remove the batteries and
press any button for approximately 15
seconds. This may improve conditions.
The OPERATION
lamp is off, but the
unit is operating
Check if the display brightness setting is
set to “OFF.” Refer to “3-4 Brightness of
the indoor unit display” on page 6.
The display lamps
on the unit are dark
Check if the display brightness setting is
set to “Dark.” Refer to “3-4 Brightness of
the indoor unit display” on page 6.
Vertical airflow
direction is not
possible
•
Check if the vertical airflow direction
setting is set to “OFF.” Refer to “To turn ON/
OFF Vertical airflow function” on page 9.
•
When the outdoor temperature or the
temperature of the floor is low, vertical
airflow direction may be inactive.
The ceiling and walls
around the indoor
unit are black and
dirty
Due to the circulation pattern of the air
and static electricity, the air conditioner is
causing airborne dirt and dust to stick to
walls and other surfaces. Depending on the
wallpaper type, dirt may adhere more easily.
A thorough cleaning of the area around the
air conditioner is recommended.
If after checking all above items, it is impossible to fix the
problem yourself, contact your installer and state the symptoms,
the complete model name of the unit (with manufacturing
number if possible) and the installation date (possibly listed on
the warranty card).
8-1 Symptoms that are NOT system malfunctions
The following symptoms are NOT system malfunctions:
8-1-1
Symptom: A sound like water flowing is heard
•
This sound is caused by the refrigerant flowing in the unit.
•
This sound may be generated when water is flowing away
from the unit during cooling or drying operation.
8-1-2
Symptom: A blowing sound is heard
This sound is generated when the direction of the refrigerant
flow is changed (e.g. when switching from cooling to heating).
8-1-3 Symptom: A ticking sound is heard
This sound is generated when the unit slightly expands or
contracts with changes in temperature.
8-1-4
Symptom: A whistling sound is heard
This sound is generated by the refrigerant flowing during
defrost operation.
8-1-5 Symptom: A clicking sound during operation or
idle time is heard
This sound is generated when the refrigerant control valves or
electrical parts operate.
8-1-6 Symptom: A clopping sound is heard
This sound is generated when an external device sucks air
out of the room (e.g. exhaust fan, extractor hood) while the
doors and windows in the room are closed. Open the doors or
windows, or turn off the device.
8-1-7 Hissing / Cracking sound
The sound of the Streamer discharge. It is not a malfunction.
8-1-8 A mechanical moving sound
•
The sound made when the flaps, louvres, or front panel
correct their positions at the beginning or end of operation, or
while operation is stopped.
•
It is the sound of the flaps, louvres, or front panel moving.
8-1-9 Symptom: White mist comes out of a unit
(Indoor unit, outdoor unit)
■
In heating operation
When the system is changed over to heating operation after
defrost operation. Moisture generated by defrost becomes
steam and is exhausted.
■
In cooling or drying operation
Moisture in the air condenses into water on the cool surface of
the outdoor unit piping and drips.
8-1-10 Symptom: The units can give off odours
•
The indoor unit is blowing out room odours it has absorbed
(the smell of walls or carpeting, furniture, clothes, and so on).
If the air conditioner has been used for a long time, there is
a chance that a dirty heat exchanger or fan are emitting an
odour.
We recommend you to have the indoor unit cleaned. Please
consult your dealer. Do not spray the air conditioner unit with
any deodorisers.
•
Due to Streamer discharge, the air outlet may emit a slight
odour as trace amounts of ozone are generated. However,
the amount is negligible and is not harmful to your health.
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