Hitachi RAC-25WSE, Руководство по обслуживанию

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Signal cannot be received (Remote contr
oller
displa
y is dim or
b
lank)
•
Do the batter
ies need replacement?
•
Is the polar
ity of the inser
ted batter
ies correct?
Operation does not star
t
•
Is the fuse b
lo
wn out or circuit break
er tr
ipped?
•
Is there a b
lac
k
out? (Oper
ation remains idle after a b
lac
k
out.)
Does not cool well Does not heat well
•
Is the micro mesh stainless filter b
loc
k
ed with dust?
•
Is the set temper
ature suitab
le?
•
Ha
ve
the
hor
iz
ontal
air
deflector
been
adjusted
to
the
correct
positions
according
to
the oper
ation mode selected?
•
Are the air inlets and air outlets of indoor and outdoor units b
loc
k
ed?
•
Is the f
an speed
“LO
W”
or
“SILENT”?
(FILTER CLEAN)
•
Chec
k
“filter cleaning oper
ation”.
TROUBLESHOOTING
(continued)
PLEASE CHECK
THE FOLLO
WING BEFORE SER
VICE
- 15 -
in
d
ic
a
to
r
b
links
FROST WASH OPERATION
(FROST WASH)
indicator blinks Noise occurred during frost wash operation Frost wash operation does not start
Is t
h
e
t
o
ta
l o
p
e
ra
tio
n
t
im
e
o
f
th
e
a
ir
co
n
d
ition
e
r
b
e
yo
n
d
a
b
o
u
t
4
2
h
o
u
rs w
h
e
n
t
h
e
a
ir
-co
n
d
ition
e
r is o
p
e
ra
te
d
f
o
r a
b
o
u
t
3
0
m
inu
te
s a
n
d
st
o
p
p
e
d
?
It
d
o
e
s n
o
t
w
a
sh
w
h
e
n
o
u
tsid
e
te
m
p
e
ra
tu
re
is le
ss t
h
a
n
a
b
o
u
t
1
d
e
g
re
e
s Ce
lsi
u
s o
r
It
d
o
e
s n
o
t
w
a
sh
w
h
e
n
t
h
e
h
u
m
idity
in
t
h
e
r
o
o
m
is a
b
o
u
t
3
0
%
o
r le
ss o
r a
b
o
u
t
7
0
%
o
r
m
o
re
t
h
a
n
4
3
d
e
g
re
e
s Ce
lsi
u
s.
m
o
re
.
W
h
e
n
"
F
ROS
T
W
A
S
H"
is d
o
n
e
b
y o
p
e
ra
tin
g
a
r
e
m
o
te
co
n
tr
o
lle
r,
it
d
o
e
s n
o
t
w
a
sh
Doe
s n
o
t
ch
a
n
g
e
to
n
o
n
-
a
u
to
m
a
tic "
F
ROS
T
W
A
S
H"
?
W
ith
in
6
0
m
inu
te
s a
ft
e
r t
h
e
e
n
d
o
f
"F
ROS
T
W
A
S
H"
,
"F
ROS
T
W
A
S
H"
is n
o
t
o
p
e
ra
te
d
fo
r p
ro
d
u
ct
p
ro
te
ctio
n
.
Doe
s it
h
a
p
p
e
n
a
ft
e
r "
slee
p
" a
n
d
"
tim
e
o
ff
"?
A
u
to
m
a
tic "
F
ROS
T
W
A
S
H"
in
te
rva
l b
e
co
m
e
s lo
n
g
e
r.
P
lea
se
o
p
e
ra
te
m
a
n
u
a
l
"F
ROS
T
W
A
S
H"
w
ith
r
e
m
o
te
co
n
tr
o
lle
r.
It
is th
e
so
u
n
d
t
h
a
t
th
e
in
te
rn
a
l m
a
ch
ine
is in
fla
te
d
a
n
d
co
n
tr
a
cte
d
b
y t
h
e
t
e
m
p
e
ra
tu
re
ch
a
n
g
e
a
n
d
t
h
e
f
in
o
f
th
e
h
e
a
t
e
x
ch
a
n
g
e
r is f
ro
z
e
n
a
n
d
t
h
a
w
e
d
Rep
e
a
t
fo
r 1
se
co
n
d
ǂ
o
n
a
n
d
1
se
co
n
d
o
ff
fo
r 1
0
se
co
n
d
s
B
e
ca
u
se
"
F
ROS
T
W
A
S
H"
ca
n
n
o
t
w
o
rk
w
h
e
n
o
p
e
ra
tin
g
t
h
e
"F
ROS
T
W
A
S
H"
w
ith
T
h
e
a
ir
co
n
d
ition
e
r is o
p
e
ra
tin
g
Ou
tsid
e
a
ir
t
e
m
p
e
ra
tu
re
,
ro
o
m
t
e
m
p
e
ra
tu
re
a
n
d
r
o
o
m
h
u
m
idity
a
re
n
o
t
It
h
a
s
n
o
t b
e
e
n
o
ve
r 6
0
m
inu
te
s sin
ce
t
h
e
e
n
d
o
f
"
F
ROS
T
W
A
S
H"
re
m
o
te
co
n
tr
o
lle
r.
su
ita
b
le
fo
r "
F
ROS
T
W
A
S
H"
Rep
e
a
t
fo
r 4
se
co
n
d
s o
n
a
n
d
1
se
co
n
d
o
ff
fo
r 1
5
se
co
n
d
s
B
e
ca
u
se
it
is n
o
t
"F
ROS
T
W
A
S
H"
f
o
r a
lo
n
g
t
im
e
.
Op
e
ra
te
t
h
e
r
e
m
o
te
co
n
tr
o
lle
r t
o
o
p
e
ra
te
"F
ROS
T
W
A
S
H"
.
· · ·
w
h
e
n
t
h
e
r
o
o
m
t
e
m
p
e
ra
tu
re
is le
ss t
h
a
n
a
b
o
u
t
1
0
d
e
g
re
e
s Ce
lsi
u
s o
r m
o
re
t
h
a
n
a
b
o
u
t
3
2
d
e
g
re
e
s Ce
lsi
u
s.
TROUBLESHOOTING
(continued)
Odor
s
In heating operation,
(H
E
A
T
IN
G
) indicator b
li
n
k
s
Indicates preheating or defrosting oper
ation is underw
a
y
(F
IL
T
E
R
CLEAN),
indicator
s lit after the
operations
Indicates
oper
ation is underw
a
y.
Hissing or fizzy sound
Refr
iger
ant
flo
w
noise
in
the
pipe
or
valv
e
sound
gener
ated
when
flo
w
rate
is adjusted.
Squeaking noise
Noise
gener
ated
when
the
unit
e
xpands
or
contr
acts
due
to
temper
ature
changes
.
Rustling sound
Noise
gener
ated
with
the
indoor
unit
fan’
s
rpm
changing
such
as
oper
ation
star
t times
.
Clic
king sound
Noise of the motor
iz
ed v
alv
e when the unit is s
witched on.
Operation sound c
hang
es
Oper
ation
noise
changes
due
to
po
w
er
var
iations
according
to
room
temper
ature changes
.
Mist emission
Mist
is
gener
ated
as
the
air
within
the
room
is
suddenly
cooled
b
y
conditioned air
.
S
te
a
m
e
m
it
te
d
f
ro
m
o
u
td
o
o
r
u
n
it
W
ater
gener
ated
dur
ing
defrosting
oper
ation
e
vapor
ates
and
steam
is
emitted.
Outdoor unit contin
ues to
operate e
ven if operation is
stopped and
(
)
indicator b
links
A
uto
fresh
defrosting
is
activ
ated
(as
the
heating
oper
ation
is
stopped,
the
microcomputer
chec
ks
frost
accum
ulated
in
the
outdoor
unit
and
instr
ucts
the unit to perf
or
m automatic defrosting if necessar
y).
Preset temperature cannot be reac
hed
Depending
on
the
n
umber
of
person
in
the
room
and
the
conditions
of
the
room,
actual
room
temper
ature
ma
y
de
viate
slightly
from
the
remote
controller’
s setting.
THE FOLLO
WING CASES DOES NO
T INDICA
TE MALFUNCTION
C
a
u
s
e
d
a
s
t
h
e
s
m
e
ll
s
a
n
d
p
a
rt
ic
le
s
o
f
s
m
o
k
e
,
fo
o
d
,
c
o
s
m
e
ti
c
s
,
e
tc
.
p
re
s
e
n
t
in
r
o
o
m
a
ir
b
e
c
o
m
e
a
tt
a
c
h
e
d
t
h
e
u
n
it
a
n
d
b
lo
w
n
o
ff
i
n
to
t
h
e
r
o
o
m
a
g
a
in
.
- 16 -
H
E
A
T
IN
G
(F
R
O
S
T
W
A
S
H
),
fl
it
e
r c
le
a
n
o
r f
ro
s
t w
a
s
h
31