Troubleshooting
Samsung Electronics
81
Y
es
Y
es
Y
es
4-
5
-4 F
a
n
error
(
E4
5
8
,
E47
5)
1
.
Check
items
2.
Check
proced
u
re
Y
es
No
Y
es
No
Y
es
No
No
F
AN
1
error
(E4
5
8
)
, F
AN
2
error
(E4
75)
1
)
Are
the
inp
u
t
power
v
o
l
tage
and
power
connection
correct?
2)
I
s
the
motor
wire
connected
to
the
o
u
tdoor
PCB
correct
l
y?
3)
I
s
there
no
obstac
l
e
at
the
s
u
rro
u
nding
of
motor
and
prope
ll
er?
4
)
Does
the
dri
v
er
in
the
motor
case
broken?
I
s
the
connection
of
F
AN
ho
u
sing
certain
l
y
to
PCB
socket?
(
CN
9
0
,
CN
91
)
Check
the
connection
of
CN
9
0
and
CN
91
T
ake
each
F
an
motor
ho
u
sing
after
1
min
u
tes
from
t
u
rning
the
power
E
xchange
the
F
AN
motor
beca
u
se
of
dri
v
er
inside
of
the
motor
case
broken
I
s
each
resistance
of
F
AN
cab
l
e
ho
u
sing
norma
l
?
(
*)
(
*)Resistance
of
F
AN
cab
l
e
ho
u
sing
at
the
norma
l
temperat
u
re
(1
0
˚
C~30
˚
C)
wire
pin
n
u
mber
Resistance
Remark
R
E
D
-
B
L
AC
K
1-
3
o
v
er
1
M
Ω
+
300V
motor
power
WHITE -
B
L
AC
K
4-
3
1KΩ
~
2
KΩ
+1
5V
contro
l
power
YELL
O
W -
B
L
AC
K
5
-
3
200
KΩ
~
300
KΩ
contro
l
B
LUE -
B
L
AC
K
6-
3
1
0
KΩ
~
50
KΩ
p
ul
se
ORAN
GE -
B
L
AC
K
7
-
3
1
0
KΩ
~
50
KΩ
re
v
erse
Mo
u
nt
each
F
an
ho
u
sing
to
PCB
socket
and
t
u
rn
on
the
power
F
o
ll
ow
the
check
proced
u
re
of
o
u
tdoor
u
nit
power
s
u
pp
l
y
error
check
I
s
the
Pin
v
o
l
tage
#1 - #
3
of
CN
9
0
and
91
o
v
er
250V?
No
E
xchange
I
NV
E
R
TE
R
PCB
I
s
the
Pin
v
o
l
tage
#
5
- #
3
of
CN
9
0
and
91 1
5V?
No
E
xchange
I
NV
E
R
TE
R
PCB
I
s
the
Pin
v
o
l
tage
#
5
- #
3
of
CN
9
0
and
91
within
1-6
V
d
u
ring
the
operation?
E
xchange
the
F
AN
motor
not
in
rotation
I
s
the
F
an
in
rotation
d
u
ring
TEST
operation
in
coo
l
ing
mode
Cont.
# TEST
operation
#
press
K1
or
K
2
b
u
tton
on
the
MA
I
N
PCB
after
power
on.
4-6-4