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11
Troubleshooting
Check the points described below before requesting repair.
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.
Cause
Symptom
It is not a m
alfunction
.
Outdoor unit
•
A noise is heard when the power is turned on.
•
The outdoor unit is preparing for running.
Indoor unit
•
Sometimes a swishing is heard.
•
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 teat exchanger.
• A clacking sound is heard.
etc.
expands
and contracts slightly due to temperature
change.
•
Discharged air smells unusual.
•
Various smells from the walls, carpet, clothes,
cigarette, cosmetics, etc. adhere to the air conditioner.
•
The fan continues running even after the unit
operation is stopped.
•
The fan keeps running to self clean operation the heat
exchanger during d
rying.
Operation does
not start even if
the switch is
turned on.
•
The air conditioner is not working or a power failure
has occurred.
•
Push START/STOP (ON/OFF) button on the remote
controller again.
•
The power switch is not turned on.
•
Turn on the power switch if it is off.
•
The air conditioner is in the ON timer operation.
•
Cancel the timer operation.
•
The batteries of the remote controller have been
e
x
hausted.
•
Replace the batteries.
•
The LEDs on the signal receiving unit are not in
normal state or operation mode is not correct.
•
Change the operation mode.
Ch
ec
k 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?
Check periodically
•
If the unit is used for a long time, parts may deteriorate and cause malfunction or bad drainage of dehumidified water
depending on the heat, humidity, or dust.
•
In addition to the usual maintenance, it is recommended that you have the unit checked and maintained by the dealer where
you purchased it.
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, water leakage, and even
compressor failure.
Maintenance List
Maintenance
Check (visual / auditory)
Unit
Part
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.
Filter
Indoor
Dust / dirt, breakage
•
Wash the filter with water when it is contaminated.
•
Replace it when it is damaged.
Fan
Indoor
•
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
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.
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