T
ro
u
b
l
eshootin
g
4-110
S
a
m
s
u
n
g
El
e
c
troni
c
s
4-4-66 F
a
n l
o
ck
error
Ou
tdoor
u
nit
disp
l
a
y
(FA
N
P
CB(FA
N
1
))
(FA
N
P
CB(FA
N2
))
Ju
d
g
m
ent
Method
∙ I
s
c
he
ck
ed
s
y
m
pto
m
s
b
y
phase
c
u
rrent
o
f
F
an
Motor
.
C
a
u
se
o
f
pro
b
l
e
m
∙ F
an
Motor
c
onne
c
tion
error
.
∙
De
f
e
c
ti
v
e
F
an
∙
De
f
e
c
ti
v
e
P
CB
Po
w
er
O
n
and
then
C
o
mm
issionin
g
Po
w
er
O
ff
R
ep
l
a
c
e
F
an
P
CB
Y
es
Did
the
error
o
cc
u
rs
?
E
nd
o
f
S
er
v
i
c
e
No
Y
es
Did
y
o
u
c
he
ck
the
f
orei
g
n
o
b
j
e
c
ts
on
the
F
an
rotar
y
w
in
g
?
R
e
m
o
v
e
the
f
orei
g
n
o
b
j
e
c
ts
and
restart
.
No
Y
es
F
an
do
rotate
b
y
hand
?
R
ep
l
a
c
e
F
an
Motor
No
No
I
f
y
o
u
rotate
the
f
an
b
y
hand
,
the
noise
o
cc
u
rs
?
R
ep
l
a
c
e
F
an
Motor
Y
es
Y
es
C
onne
c
tion
w
ire
o
f
F
an
Motor
did
c
on
f
ir
m
ation
?
(C
he
ck
the
c
onne
c
tion
stat
u
s
o
f
the
F
an
1
and
F
an2
.)
C
he
ck
the
c
onne
c
tion
stat
u
s
,
and
then
restart
.
No
1
.
C
a
u
se
o
f
pro
b
l
e
m
