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10
Maintenance
<Daily maintenance>
▼ Cleaning of air filter
• If
is displayed on the remote controller, maintain
the air filter.
1
Push the
button to stop the
operation, then turn off the circuit breaker.
8
2
Open the air intake grille.
• Remove the screws of air intake grille fixing
knob on a side of each filter.
• Slide the air intake grille fixing knobs (two
positions) toward the arrow direction (OPEN),
and then open the air intake grille.
Air intake grille fixing knob
Air intake grille
Air filter
3
Take out air filter.
• Push the handle of the air filter, and remove the
hook of the air intake grille. Pull out the air filter
toward you.
Air filter
Air filter handle
Air intake grille hook
Air filter handle
Air intake grille fixing hook
39-EN
4
Cleaning with water or vacuum cleaner.
• If dust is heavy, wash it with tepid water
including neutral detergent or water.
• After cleaning with water, dry it completely in the
shade.
5
Mount the air filter.
1,7
6
Close the air intake grille.
• Close the air intake grille, and then fix it securely
while sliding knob closed side (CLOSE).
• Fix the screws of air intake grille fixing knob on
a side of each filter.
Air intake grille
Air intake grille fixing knob
Air filter
7
Turn on the circuit breaker, then push the
button on the remote controller to
start the operation.
8
After cleaning, push
.
display disappears.
CAUTION
• Do not start the air conditioner while leaving air filter
removed.
• Push the filter reset button. (
indication will be turn
off.)
▼ Periodic Maintenance
• 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.
Inspection before maintenance
Following inspection must be carried out by a qualified installer or qualified service person.
Parts
Look through the air discharge port to check the part. Examine the heat exchanger if there is any
Heat exchanger
clogging or damages.
Fan motor
Check if any abnormal noise can be heard.
Fan
Check if any abnormal noise can be heard.
Filter
Go to installed location and check if there are any stains or breaks on the filter.
Look through the air discharge port to check the part. Check if there is any clogging or drain water
Drain pan
is polluted.
▼ Maintenance List
Part
Unit
Heat exchanger
Indoor / outdoor
Fan motor
Indoor / outdoor
Filter
Indoor
Fan
Indoor
Air intake / discharge
Indoor / outdoor
grilles
Drain pan
Indoor
Ornamental panel,
Indoor
louvres
Exterior
Outdoor
– 20 –
Inspection method
Check (visual / auditory)
Maintenance
Wash the heat exchanger when it is
Dust / dirt clogging, scratches
clogged.
Take appropriate measures when
Sound
abnormal sound is generated.
• Wash the filter with water when it is
Dust / dirt, breakage
contaminated.
• Replace it when it is damaged.
• Vibration, balance
• Replace the fan when vibration or
balance is terrible.
• Dust / dirt, appearance
• Brush or wash the fan when it is
contaminated.
Fix or replace them when they are
Dust / dirt, scratches
deformed or damaged.
Dust / dirt clogging, drain
Clean the drain pan and check the
contamination
downward slope for smooth drainage.
Wash them when they are contaminated
Dust / dirt, scratches
or apply repair coating.
• Rust, peeling of insulator
Apply repair coating.
• Peeling / lift of coat
40-EN
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