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.
Filter
Indoor
Dust / dirt, breakage
• Wash the
fi
lter 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.
Owner’s Manual
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