Troubleshooting
Samsung Electronics
93
4-5-13 Outdoor unit power supply error
N
o
N
o
N
o
Y
es
1.
Ch
ec
kl
ist
:
1)
A
re
t
h
e
in
p
ut
p
o
w
er
v
o
l
tage
an
d p
o
w
er
connection
correct
?
2)
I
s
t
h
ere
an
y F
use
S
h
ort
o
f
t
h
e
in
d
oor
or
out
d
oor
unit
?
3)
I
s
an
y L
E
D l
it
on
b
ot
h MAIN PCB
an
d INV
E
RT
E
R PCB?
4)
A
re
R
eactor
w
ires
o
f
t
h
e
out
d
oor
unit
connecte
d
correct
ly?
2.
T
rou
bl
es
h
ooting
p
roce
d
ure
A
re
w
ire
an
d
soc
k
et
connecte
d
correct
ly?
P
o
w
er
l
ine
N
an
d T w
ire
I
s
v
o
l
tage
on
N-T
o
f
termina
l
bl
oc
k
o
v
er
300V?
Ch
ec
k
an
d
correct
t
h
e
p
o
w
er
ca
bl
e
w
iring
A
re
w
ire
an
d
soc
k
et
connecte
d
correct
ly?
CN39(MAIN PCB),CN31(INV
E
RT
E
R PCB)
I
s
t
h
e
FU
SE
on
INV
E
RT
E
R PCB bl
o
w
n
?
Ch
ec
k
an
d
correct
t
h
e
w
ire
or
soc
k
et
connection
Ch
ec
k F
uses
l
iste
d bl
o
w
3 FU
SES
in
E
MI PCB, 1 FU
SE
in
MAIN PCB
N
o
I
s
t
h
ere
miss
connection
o
f p
o
w
er
an
d
communication
w
ire
b
et
w
een
in
d
oor
an
d
out
d
oor
?
C
orrect
t
h
e
ca
bl
e
w
iring
b
et
w
een
in
d
oor
an
d
out
d
oor
Ch
ec
k F1,F2
communication
l
ine
w
iring
.
CN50(MAIN PCB)
Ch
ec
k
an
d
correct
t
h
e
w
iring
E
x
c
h
ange
t
h
e
FU
SE
E
x
c
h
ange
INV
E
RT
E
R PCB
Ch
ec
k
eac
h BLDC FAN
motor
s
h
ort
or
not
, by
resistance
b
et
w
een
p
in
#1
an
d #3
Y
es
N
o
Y
es
N
o
Y
es
Y
es
Y
es
MAIN PCB
INVERTER PCB
ALL OFF
ALL OFF
Error
202 d
is
pl
a
y
N
orma
l
Error
203 d
is
pl
a
y
ALL OFF
Ch
ec
k L
E
D
s
on
b
ot
h MAIN PCB
an
d INV
E
RT
E
R PCB
a
f
ter
1
minutes
f
rom
p
o
w
er
on
E
x
c
h
ange
FAN
motor
4-6-13
