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Problem
Unit does not cool or heat very well.
The airflow direction suddenly changes.
A white mist is expelled from the indoor
unit.
The air conditioner cannot be operated
for about 3 minutes when restarted.
Air does not blow out soon in the heating
operation.
The start and stop functions are not avail-
able just after restarting the unit.
The operation is stopped for about
10 minutes in the heating operation.
Problem
The operation lamp of the wireless re-
mote controller’s receiver is flashing.
Unit operates even if ON/OFF button has
not been pressed.
No indication of wireless remote control-
ler, indication is dim, or signal transmis-
sion cannot reach remote controller sen-
sor.
Solution
A self-diagnostic function is being per-
formed to preserve the air conditioner.
* Do not attempt to make repairs your-
self. Turn the main switch off and con-
tact the dealer from whom you bought
the air conditioner. Provide him or her
with the name of the unit and the
number of times the operation lamp of
the wireless remote controller’s receiver
flashes.
It occurs for the AUTO RESTART FUNC-
TION mode.
Press the ON/OFF button to stop opera-
tion.
The batteries have run out.
Replace the batteries with new ones (size
AAA), and then press the reset button.
Though both alkaline batteries and man-
ganese batteries can be used, alkaline
batteries are recommended because their
service life is longer than that of manga-
nese batteries.
* If indication is not detected even when
new batteries have been replaced,
check that the batteries have been in-
stalled properly.
Solution
Clean the filter.
After one hour of cooling mode or drying
mode operation with the airflow in a
downward direction, the unit will auto-
matically change to the “Horizontal air-
flow” mode.
When the unit is in the heating or defrost-
ing mode, it will automatically change to
the “Horizontal airflow” mode.
This may occur just after the unit is turned
on when a high level of humidity is
present in the room.
This protects the air conditioner accord-
ing to instructions from the microproces-
sor. Please wait.
Please wait as the air conditioner is pre-
paring to blow out warm air.
Wait about three minutes (operation has
stopped to prevent damage to the air con-
ditioner).
Defrosting of the outdoor unit is being
done (Defrosting operation).
Since this is completed in 10 minutes,
please wait. (When the external tempera-
ture is too low and humidity is too high,
frost is formed.)
Before you call out a repair man, check the following table to see whether there is a simple solution to your problem.
If none of the above apply, turn the main switch off and contact the dealer from whom you bought the air-conditioner, telling him the model name and the
nature of the problem. Do not try to fix the unit yourself.
In any of the following cases, turn off the main power switch and contact your local dealer for service:
• The operation lamp (on the main unit) flashes.
• The switches do not work properly.
• The circuit breaker trips frequently (or the fuse blows frequently).
• Water has accidentally been splashed into the unit.
• Water leaks from the unit.
• Something is accidentally dropped into the air-conditioner.
• An unusual noise is heard during operation.
The following do not indicate any malfunction:
Odours: smells such as tobacco or cosmetic odours may persist after they have been sucked into the unit.
Sound of liquid flowing inside indoor unit: this can occur during or after operation and is simply the sound of refrigerant being circulated inside the unit.
Ticking sound coming from indoor unit: this can occur when cooling or heating has just begun or has just stopped. It is caused by the indoor unit shrinking
or expanding slightly due to the change in temperature.
4. Troubleshooting
Installation place
Avoid installing the air conditioner in the following places.
• Where flammable gas could leak.
Caution:
Do not install the unit where flammable gas could leak.
If gas leaks and collects around the unit, it may cause an explosion.
• Where there is much machine oil.
• Salty place such as the seaside.
• Where sulfide gas is generated such as a hot spring.
• Where there is oil splashing or much oily smoke.
Warning:
If the air conditioner operates but does not cool or heat (depending
on model) the room, consult your dealer since there may be a refrig-
erant leak. Be sure to ask the service representative whether there is
refrigerant leakage or not when repairs are carried out.
The refrigerant charged in the air conditioner is safe. Refrigerant nor-
mally does not leak, however, if refrigerant gas leaks indoors, and
comes into contact with the fire of a fan heater, space heater, stove,
etc., harmful substances will be generated.
Inverter type
fluorescent lamp
To prevent the effect
of a fluorescent lamp,
keep it away as far
apart as possible.
To prevent picture
distortion or
noise, keep 1 m
or more apart.
TV
Radio
100 mm or more
400 mm or more
Well-
ventilated dry
place
Wall, etc.
5. Installation, relocation and inspection