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10
Maintenance
CAUTION
Before maintenance, be sure to turn off the
leakage breaker.
Cleaning of air filter
If
is displayed on the wired remote controller,
maintain the air filter.
Clogging of the air filter reduce cooling / heating
performance.
Cleaning of panel and air filter
Preparation:
1. Turn off the air conditioner by the remote controller.
2. Open the air inlet grille.
Slide the hook of the air inlet grille outward, and
open the air inlet grille slowly while holding it.
Hook lock grille
Hook lock grille
Air inlet grille
Direction
Direction
Push
to open
to open
hook
Cleaning of air filters
If the air filters are not cleaned, it not only reduce the
cooling a performance of air conditioner but causes
a failure in the air conditioner such as water falling in
drops.
Preparation:
1. Stop the operation by remote controller.
2. Dismount the air filter.
Air inlet grille
Push and
Filter air
Pull Air filter
from grille
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Use a vacuum cleaner to remove dust
from the filters or wash them with water.
After rinsing the air filters with water, dry them in the
shade.
Set the air filter into the air conditioner.
Clean the panel and air filter with water:
Wipe down the panel and air filter with a sponge or
towel moistened with a kitchen detergent. (Do not
use any metallic brush for cleaning.)
Carefully rinse the panel and air filter to wash out
the detergent.
After rinsing the panel and air filter with water,
dry it in the shade.
1. Close the air inlet grille.
Close the air inlet grille, slide the hook inward, and
fix the air inlet grille securely.
Loosen
screw
Hook lock grille
Hook lock grille
Air inlet grille
Direction
Push
to close
grille
2. Reset clean the air filter.
"FILTER
" disappears.
CAUTION
Do not start the air conditioner while leaving the
panel and air filter removed.
REQUIREMENT
Be sure to clean the heat exchanger with
pressurized water.
If a commercially available detergent (strong
alkaline or acid) cleaning agent is used, the
surface treatment of the heat exchanger will be
marred, which may degrade the self cleaning
performance.
For details, contact the dealer.
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q 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 ef cient 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 quali ed installer or quali ed service person.
Parts
Heat exchanger
Fan motor
Fan
Filter
Loosen
Drain pan
screw
q Maintenance List
Part
Heat exchanger
Direction
to close
Fan motor
Filter
Fan
Air intake / discharge
grilles
Drain pan
Ornamental panel,
louvers
Exterior
Inspection method
Access from inspection opening and remove the access panel. Examine the heat exchanger if
there is any clogging or damages.
Access from inspection opening and check if any abnormal noise can be heard.
Access from inspection opening and remove the access panel. Examine the fan if there are any
waggles, damages or adhesive dust.
Go to installed location and check if there are any stains or breaks on the lter.
Access from inspection opening and remove the access panel. Check if there is any clogging or
drain water is polluted.
Unit
Check (visual / auditory)
Indoor / outdoor
Dust / dirt clogging, scratches
Indoor / outdoor
Sound
Indoor
Dust / dirt, breakage
Vibration, balance
Dust / dirt, appearance
Indoor
Indoor / outdoor
Dust / dirt, scratches
Dust / dirt clogging, drain
Indoor
contamination
Indoor
Dust / dirt, scratches
Rust, peeling of insulator
Outdoor
Peeling / lift of coat
Maintenance
Wash the heat exchanger when it is
clogged.
Take appropriate measures when
abnormal sound is generated.
Wash the lter with water when it is
contaminated.
Replace it when it is damaged.
Replace the fan when vibration or
balance is terrible.
Brush or wash the fan when it is
contaminated.
Fix or replace them when they are
deformed or damaged.
Clean the drain pan and check the
downward slope for smooth drainage.
Wash them when they are contaminated
or apply repair coating.
Apply repair coating.
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