Troubleshooting
92
Samsung Electronics
4-
5
-1
2
Ou
tdoor
u
nit
is
not
p
o
w
ered
on
–
Initia
l
diagnosis
1
.
Che
c
k
items
1)
Is
the
power
supp
l
y
vo
l
tage
3
8
0V?
2
)
Is
the
AC
power
c
onne
c
ted
c
orre
c
t
l
y?
3
)
Are
the
LEDs
in
the
main
PCB
and
inverter
PCB
of
the
outdoor
unit
ON?
4
)
Is
the
input
power
vo
l
tage
of
the
indoor
unit
220V?
5)
Is
the
wired
remote
c
ontro
ll
er
c
onne
c
ted
c
orre
c
t
l
y?
2.
Che
c
k
pro
c
edure
Yes
T
urn
o
he
main
power
swit
c
h
(c
ir
c
uit
break
of
power
out
l
et
)
and
turn
on
again
after
30
se
c
onds.
Che
c
k
the
input
power
No
Is
the
outdoor
unit
power
supp
l
y
(
N-
R
,
N-
S
,
N-
T)
220Va
c
?
Yes
Che
c
k
c
onne
c
tion
of
the
outdoor
unit
termina
l
b
l
o
c
k
No
Is
the
outdoor
unit
power
vo
l
tage
(
L-N
)
220Va
c
?
Yes
Che
c
k
the
c
onne
c
tion
wires
and
c
onne
c
tors
of
the
indoor
and
outdoor
units
No
Is
the
indoor
unit
power
supp
l
y
vo
l
tage
(
L-N
)
220Va
c
?
Yes
Ex
c
hange
the
wired
remote
c
ontro
ll
er
No
Does
the
air
c
onditioner
operate
when
pressing
ON
/
OFF
button
of
the
wired
remote
c
ontro
ll
er?
Yes
the
option
DIP
swit
c
hes
No
Are
the
option
DIP
swit
c
hes
inside
the
wired
remote
c
ontro
ll
er
c
o
ured
c
orre
c
t
l
y?
No
Che
c
k
the
system
depending
on
the
error
disp
l
ay
Yes
Is
there
an
error
message
disp
l
ayed
on
the
wired
remote
c
ontro
ll
er
disp
l
ay?
Che
c
k
the
target
temperature
4-6-12
