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17-EN
18-EN
NOTE
For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in
use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof treatment, if
necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit at
least once every 3 months. Ask a professional for this cleaning / maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and even
compressor failure.
Maintenance List
Part
Unit
Check (visual / auditory)
Maintenance
Heat exchanger
Indoor / outdoor
Dust / dirt clogging, scratches
Wash the heat exchanger when it is clogged.
Fan motor
Indoor / outdoor
Sound
Take appropriate measures when abnormal
sound is generated.
Dust / dirt, breakage
Filter
Wash the filter with water when it is
contaminated.
Replace it when it is damaged.
Fan
Vibration, balance
Dust / dirt, appearance
Replace the fan when vibration or balance is
terrible.
Brush or wash the fan when it is contaminated.
Air intake /
discharge grilles
Indoor / outdoor
Dust / dirt, scratches
Fix or replace them when they are deformed or
damaged.
Drain pan
Indoor
Indoor
Indoor
Dust / dirt clogging, drain
contamination
Clean the drain pan and check the downward
slope for smooth drainage.
Ornamental panel,
louvers
Indoor
Dust / dirt, scratches
Wash them when they are contaminated or apply
repair coating.
Exterior
Outdoor
Rust, peeling of insulator
Peeling / lift of coat
Apply repair coating.
8
Troubleshooting
Check the points described below before requesting repair.
If there is something unusual even after checking the above, stop running the unit, turn off the circuit breaker, and
inform the dealer where you purchased the product of the product number and symptom. Do not attempt to repair
the unit by yourself as doing so is dangerous. If the check indicator (e.g.
,
,
) is displayed on the remote
controller LCD, inform the dealer of its content as well.
If any of the following occur, stop running the unit immediately, turn off the circuit breaker, and contact the dealer
where you purchased the product.
The switch does not work properly.
The circuit breaker often blows out.
You unintentionally put a foreign object or water inside.
The unit cannot be run even after the cause of the protective device activation is removed.
Other unusual conditions are found.
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It is not
a m
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unction
.
Outdoor unit
White, misty, cold air or water comes out
Sometimes the noise of air leaking is
heard.
A noise is heard when the power is turned
on.
The fan of the outdoor unit is automatically stopped
and defrosting is performed.
The solenoid valve works when defrosting starts or
stops.
The outdoor unit is preparing for running.
Indoor unit
Sometimes a swishing is heard.
A clacking sound is heard.
Discharged air smells unusual.
When the unit starts running, during operation, or
immediately after the unit stops running, a sound such
as water flowing may be heard, or the operation sound
may become louder for a couple of minutes
immediately after the unit starts running. This is the
sound of the refrigerant flowing or the dehumidifier
draining.
This is a sound generated when the heat exchanger or
other part expands and contracts slightly due to
temperature change.
Various smells from the walls, carpet, clothes,
cigarette, cosmetics or other things adhere to the air
conditioner.
The unit does not run.
Has a blackout occurred?
Has the circuit breaker blown?
Has the protective device been activated? (The
operation indicator and
on the remote controller
are blinking.)
Check again.
The room does not cool down.
Is the air intake or discharge of the outdoor unit
clogged?
Is a door or window open?
Is the air filter clogged with dust?
Is the air volume set to “LOW”? Or is the operation
mode set to “FAN”?
Is the setup temperature appropriate?
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