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English
If the system does not properly operate except
for the above mentioned cases and none of the
above mentioned malfunctions is evident, inves-
tigate the system according to the following pro-
cedures.
If it is impossible to fix the problem yourself after
checking all the above items, contact your
dealer.
Let him know the symptoms, system name, and
model name (listed on the warranty card).
1. If the system does not operate at all;
• Check if there is no power failure.
Wait until power is restored. If power failure occurs
during operation, the system automatically restarts
immediately after the power supply is recovered.
• Check if no fuse has blown;
Turn off the power supply
• Check if the breaker is
blown.
Turn the power on with
the breaker switch in the
off position.
Do not turn the power on
with the breaker switch in
the trip position.
(Contact your dealer.)
2. If the system stops soon after starting the opera-
tion;
• Check if air inlet or outlet of outdoor or indoor unit
is not blocked by obstacles.
Remove any obstacle and make it well-ventilated.
• Check if the remote controller display shows
“
” (time to clean the air filter);
Refer to the operation manual of the indoor unit.
And clean the air filter.
3. 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 obstacle and make it well-ventilated.
• Check if the remote controller display shows
“
” (time to clean the air filter);
Refer to the operation manual of the indoor unit.
And clean the air filter.
• Check the temperature setting.
Refer to “Operation procedure”.
• Check the fan speed setting on your remote con-
troller.
Refer to “Operation procedure”.
• Check for open doors or windows.
Shut doors and windows to prevent wind from
coming in.
• Check if there are too many occupants in the
room during cooling operation.
• Check if the heat source of the room is excessive
during cooling operation.
• Check if direct sunlight enters the room during
cooling operation.
Use curtains or blinds.
• Check if the airflow angle is not proper.
Refer to “Operation procedure”.
After-sales service and warranty
After-sales service:
WARNING
• Do not modify, disassemble or repair the unit.
This may cause electric shock or fire.
Contact your dealer.
• If the refrigerant leaks, keep out of fire.
Although the refrigerant does not usually leak, if
the refrigerant leaks out into a room and comes in
contact with the combustible air in the equipment
such as fan heater, stove, oil (gas) cooker, etc., it
will cause toxic gas to be generated.
When a refrigerant leakage failure has been
repaired, confirm a service person that
the leakage point has been corrected
surely before restarting operation.
• Do not remove or reinstall the unit by yourself.
Incorrect installation may cause electrical shock or
fire.
Contact your dealer.
•
When asking your dealer to repair, inform
related staff of the details as follows:
• Product No. of air conditioner:
Refer to the warranty card.
• Shipping date and installation date:
Refer to the warranty card.
• Malfunction:
Inform the staff of the defective details.
(Malfunction code being displayed on
the remote controller.)
• Name, address, telephone number
•
Repair where the warranty term is expired
Contact your dealer. If necessary to repair, pay
service is available.
•
Minimum storage period of important parts
Even after a certain type of air conditioner is dis-
continued, we have the related important parts in
stock for 9 years at least.
The important parts indicate parts essential to
operate the air conditioner.
•
Recommendations for maintenance and
inspection
Since dust collects after using the unit for several
years, the performance will be deteriorated to
some extent.
Taking apart and cleaning inside require technical
expertise, so we recommend entering a mainte-
nance and inspection contract (at a cost) separate
from normal maintenance.
Switch
ON
OFF
Trip position
Breaker
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