T
ro
ubl
eshooting
4-22
S
ams
u
ng
El
ectronics
4-3-10 No Power(completely dead) - Initial diagnosis
Outdoor unit is not powered on – Initial diagnosis (1phase)
1
.
Chec
k
items
1
)
I
s
the
power
s
u
pp
l
y
v
o
l
tage
22
0
V?
2
)
I
s
the
AC
power
connected
correct
l
y
?
3)
Are
the
LE
Ds
in
the
main
PCB
and
in
v
erter
PCB
of
the
o
u
tdoor
u
nit
ON
?
4
)
I
s
the
inp
u
t
power
v
o
l
tage
of
the
indoor
u
nit
22
0
V?
5)
I
s
the
wired
remote
contro
ll
er
connected
correct
l
y
?
2
.
Chec
k
proced
u
re
Y
es
Tu
rn
off
the
main
power
switch
(
circ
u
it
b
rea
k
of
power
o
u
t
l
et)
and
t
u
rn
on
again
after
30
seconds.
Chec
k
the
inp
u
t
power
No
I
s
the
o
u
tdoor
u
nit
power
s
u
pp
l
y
(L-
N)
22
0
V?
Y
es
Chec
k
the
connection
of
the
termina
l bl
oc
k
No
I
s
the
o
u
tdoor
u
nit
power
v
o
l
tage
(L-
N)
22
0
V?
Y
es
Rep
l
ace
the
in
v
erter
PBA
No
I
s
the
v
o
l
tage
b
etween
the
termina
l 2 (~
)
and
4 (~
)
of
the
b
ridge
diode
22
0
V?
Y
es
Rep
l
ace
the
f
u
se
No
I
s
the
f
u
se
connected
?
Y
es
Rep
l
ace
the
in
v
erter
PBA
No
I
s
the
resistance
v
a
lu
e
of
R00
1 2
00
Ω?
Cont.
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