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Troubleshooting
12-3-4 Outdoor Detailed Inspection Procedure
No
Procedure
1
Wa
it 30
se
c
o
n
ds over a
d
i
s
c
o
nn
e
ctin
g
th
e power
c
able C
h
e
c
k
th
e ou
t
PCB
.
2
C
h
e
c
k
th
e Ou
t
door u
PCB
.
3
C
h
e
c
k
th
e LED l
i
g
htin
a
ft
er power supply
.
4
C
h
e
c
k
th
e
c
o
n
d
iti
o
n
in
door & ou
t
door
c
o
ti
o
n c
able
.
5
C
h
e
c
k
th
e Comp W
i
6
C
h
e
c
k
th
e BLDC Fa
n.
1
2
-
2
1
Inspection Method
ft
er
1
)
Is C1
0
1 d
i
s
ch
arged?
2)
Is
th
e res
i
s
t
a
nc
e o
f
bo
door
3)
Is
th
e
f
u se o
f
EMI PCB
4
)
Is
th
e rea
ct
or w
i
re
c
nit
1
)
Is R
70
1
200
o
h
m?
2)
Does ry
7
4 opera
t
e
n
(
IC
0
5 & 16:
0
V, 1:5V
)
3)
Is
th
e
f
u se
(
F
70
1
) n
ormal?
4
)
Is
th
e Sub PCB assembled
g
1
)
Normal: Red: L
i
g
ht
O
Yellow: L
i
g
ht
O
ff
?
2)
Is
th
e vol
t
age o
f
C1
3)
Is
th
e
in
pu
t
o
f
IC19
4
)
Re
ch
e
c
k a
ft
er d
i
sassembl
o
f
1
)
Is
th
e gree
n
LED l
i
g
nn
e
c
-
2)
Is
th
e
in
door & ou
t
door
c
o
nn
e
ct
ed
in
order?
3)
Is
th
e grou
n
d
in
g w
i
door & ou
door u
in
t
4
Is
e vol
age o
erm
)
th
t
f t
re
.
1
)
Is
it c
o
nn
e
ct
ed red, blue, a
c
ou
nt
er
c
lo
c
kw
i
se
.
2)
Are
th
e valve a
n
d
it
Is
e
s
alla
o
o
3)
th
in
t
ti
n c
1
)
Is CN
0
1 1,
3
over
2
5
2)
Is CN
0
1
3
, 5 w
ithin
1V~5V?
Is
e vol
age o
CN
3)
th
t
f
4
Is
e res
s
a
e o
BLDC Mo
)
th
i
t
nc
f
power o
ff
?
th t
erm
in
als o
f
C1
0
1 ope
n
ed?
n
ormal?
o
nn
e
ct
ed?
ormally?
n
ormally?
n
, Gree
n
: Fl
ic
ker
in
g,
0
1
2
5
0
V over?
8
V, a
n
d
th
e ou
t
pu
t
5V?
in
g BLDC FAN W
i
re
.
ht
o
n
o
nc
e per se
c
o
n
d?
c
o
nn
e
cti
o
n
able
re
c
o
nn
e
ct
ed
t
o
th
e bo
th
o
f
?
nit
al blo
k N
1
,
5V?
in
c
(
)
22
n
d yellow
in
order
in
s
in
s
t
alla
ti
o
n c
o
n
d
iti
o
n
good?
d
o
o
ou
door u
?
n
iti
n
f
t
nit
0
V?
1 6
a
ged?
0
ch
n
or 1,
ope
ed a
er
t
3
n
ft
Cause
•
Over Curre
nt
•
I
nn
er s
h
or
t
o
f
PCB
•
BLDC FAN Mo
or Error
t
•
Ou
t
door PCB Error
•
SUB Relay
RY
4
Error
(
7
)
•
IC
0
5 Error
•
I
n
door PCB Error
•
I
nn
er s
h
or
t
o
f
ou
t
door PCB
•
Wro
n
g assembly o
f
ou
t
door PCB
•
BLDC FAN Error
•
Wro
n
g
c
o
nn
e
cti
o
n
o
f
I
n
door/Ou
•
Wro
n
g assembly o
f
ou
t
door
c
ommu
nic
a
ti
o
n ci
r
c
u
it
•
Wro
n
g assembly
•
I
n
s
t
alla
ti
o
n c
o
n
d
iti
o
n i
s bad
.
•
Ou
t
door PCB Error
•
BLDC Mo
t
or Error
Samsu
t
door w
i
r
in
g
n
g Ele
ct
ro
nic
s
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