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10. 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
He
a
t exch
a
nger
F
a
n motor
Filter
F
a
n
Su
ction/
Di
s
ch
a
rge grille
Dr
a
in p
a
n
F
a
ce p
a
nel, Lo
u
ver
Extern
a
l
a
ppe
a
r
a
nce
Object
Indoor
Outdoor
—
—
—
—
—
—
Content
s
of check
• Blocking with d
us
t, d
a
m
a
ge check
• A
u
di
b
ility for
s
o
u
nd
• Vi
sua
l check for dirt
a
nd
b
re
a
k
a
ge
• Vi
sua
l check for
s
wing
a
nd
ba
l
a
nce
• Check
a
dhe
s
ion of d
us
t
a
nd extern
a
l
a
ppe
a
r
a
nce.
• Vi
sua
l check for dirt
a
nd
s
cr
a
tch
• Check
b
locking
b
y d
us
t
a
nd dirt of dr
a
in
w
a
ter.
• Check dirt
a
nd
s
cr
a
tch.
• Check r
us
t
a
nd pe
a
ling of in
su
l
a
tor
• Check pe
a
ling
a
nd flo
a
ting of co
a
ting film
Content
s
of maintenance
• Cle
a
n it when
b
locking i
s
fo
u
nd.
• When
ab
norm
a
l
s
o
u
nd i
s
he
a
rd
• Cle
a
n the filter with w
a
ter or
a
v
a
c
uu
m cle
a
ner.
• Repl
a
ce if
a
ny
b
re
a
k
a
ge
• Repl
a
ce f
a
n when
s
winging or
ba
l
a
nce i
s
rem
a
rk
ab
ly poor.
• If
a
l
a
rge d
us
t
a
dhere
s
, cle
a
n it with
b
r
us
h or w
a
ter.
• Wipe off dirt with
a
s
oft cloth.
Refriger
a
nt le
a
k
detection
s
en
s
or
• I
s
(Check indic
a
tor) on the remote controller
fl
as
hing? . Doe
s
check code of J29, J30,
or J31
a
ppe
a
r on the remote controller?
• Cont
a
ct the
s
ervice m
a
n to h
a
ve the
refriger
a
nt le
a
k detection
s
en
s
or
checked.
• Cle
a
n dr
a
in p
a
n, Inclin
a
tion check
• Cle
a
ning/Co
a
ting with rep
a
ir p
a
inting
• Co
a
ting with rep
a
ir p
a
inting
