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<Maintenance/Check list>
Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units
of the operating air conditioning system regularly to secure effective operation of the air conditioner.
It is also recommended to maintain the units once a year regularly when operating the air conditioner for a
long time.
Check periodically signs of rust or scratches, etc. on coating of the outdoor units.
Repair the trouble position or apply the rust resisting paint if necessary.
If an indoor unit operates for approx. 8 hours or more per day, usually it is necessary to clean the indoor/
outdoor units once three months at least.
These cleaning and maintenance should be carried out by a qualified dealer.
Although the customer has to pay the charge for the maintenance, the life of the unit can be prolonged.
Failure to clean the indoor/outdoor units regularly will cause shortage of capacity, freezing, water leakage or
trouble on the compressor.
Part name
Heat exchanger
Fan motor
Filter
Fan
S
u
ction/
Di
s
charge grille
Drain pan
Front panel, Lo
u
ver
External appearance
Object
Indoor
Outdoor
—
—
—
—
—
Contents of check
• Blocking with d
us
t, damage check
• A
u
di
b
ility for
s
o
u
nd
• Vi
su
al check for dirt and
b
reakage
• Vi
su
al check for
s
wing and
b
alance
• Check adhe
s
ion of d
us
t and external
appearance.
• Vi
su
al check for dirt and
s
cratch
• Check
b
locking
b
y d
us
t and dirt of drain
water.
• Check dirt and
s
cratch.
• Check r
us
t and pealing of in
su
lator
• Check peeling and floating of coating film
Contents of maintenance
• Clean it when
b
locking i
s
fo
u
nd.
• When a
b
normal
s
o
u
nd i
s
heard
• Clean with water if dirty
• Replace if any
b
reakage
• Replace fan when
s
winging or
b
alance i
s
remarka
b
ly poor.
• If a large d
us
t adhere
s
, clean it with
b
r
us
h or water.
• Repair or replace it if deformation or
damage i
s
fo
u
nd.
• Clean drain pan, Inclination check
• Cleaning/Coating with repair painting
• Coating with repair painting
