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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
ft
er
d
i
s
c
o
nn
e
ctin
g
th
e power
c
able C
h
e
c
k
th
e ou
t
door
PCB
.
2
C
h
e
c
k
th
e Ou
t
door u
nit
PCB
.
3
C
h
e
c
k
th
e LED l
i
g
htin
g
a
ft
er power supply
.
4
C
h
e
c
k
th
e
c
o
n
d
iti
o
n
o
f
in
door & ou
t
door
c
o
nn
e
c
ti
o
n c
able
.
5
C
h
e
c
k
th
e Comp W
i
re
.
C
e
k
e BLDC Fa
6
h
c
th
n.
1
2
-
2
1
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Inspection Method
1
)
Is C1
0
1 d
i
s
ch
arged?
2)
Is
th
e res
i
s
t
a
nc
e o
f
bo
th t
erm
in
3)
Is
th
e
f
u se o
f
EMI PCB
n
ormal?
4
)
Is
th
e rea
ct
or w
i
re
c
o
nn
e
ct
ed?
1
)
Is R
70
1
200
o
h
m?
2)
Does ry
7
4 opera
t
e
n
ormally?
(
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
n
ormally?
1
)
Normal: Red: L
i
g
ht
O
n
, Gree
n
: Fl
Yellow: L
i
g
ht
O
ff
?
2)
Is
th
e vol
t
age o
f
C1
0
1
2
5
0
V over?
3)
Is
th
e
in
pu
t
o
f
IC19
8
V, a
n
d
th
e ou
4
)
Re
ch
e
c
k a
ft
er d
i
sassembl
in
g BLDC FAN W
1
)
Is
th
e gree
n
LED l
i
g
ht
o
n
o
nc
e per se
-
2)
Is
th
e
in
door & ou
t
door
c
o
nn
e
c
o
nn
e
ct
ed
in
order?
3)
Is
th
e grou
n
d
in
g w
i
re
c
o
nn
e
ct
door & ou
door u
?
in
t
nit
4
)
Is
th
e vol
t
age o
f t
erm
in
al blo
c
1
)
Is
it c
o
nn
e
ct
ed red, blue, a
n
d yellow
c
ou
nt
er
c
lo
c
kw
i
se
.
2)
Are
th
e valve a
n
d
it
s
in
s
t
alla
ti
o
3)
Is
th
e
in
s
t
alla
ti
o
n c
o
n
d
iti
o
n
o
f
1
Is CN
1 1,
over
5
V?
)
0
3
2
0
2)
Is CN
0
1
3
, 5 w
ithin
1V~5V?
3)
Is
th
e vol
t
age o
f
CN
0
1 6
ch
a
n
ged?
4
)
Is
th
e res
i
s
t
a
nc
e o
f
BLDC Mo
t
or 1,
power o
ff
?
•
Over Curre
als o
f
C1
0
1 ope
n
ed?
•
I
er s
or
nn
h
•
BLDC FAN Mo
•
Ou
t
door PCB Error
•
SUB Relay
•
IC
5 Error
0
•
I
n
door PCB Error
ic
ker
in
g,
•
I
nn
er s
h
or
•
Wro
n
g assembly o
•
BLDC FAN Error
t
pu
t
5V?
i
re
.
c
o
n
d?
•
Wro
n
g
c
o
cti
o
n
able
•
Wro
n
g assembly o
c
ommu
nic
ed
t
o
th
e bo
th
o
f
k N
(
1
)
,
22
5V?
in
order
in
•
Wro
n
g assembly
•
I
n
s
t
alla
ti
o
n c
o
n
d
iti
o
n
good?
ou
t
door u
nit
?
•
Ou
t
door PCB Error
•
BLDC Mo
3
ope
n
ed a
ft
er
Cause
nt
o
PCB
t
f
t
or Error
(
RY
7
4
)
Error
t
o
f
ou
t
door PCB
f
ou
t
door PCB
nn
e
cti
o
n
o
f
I
n
door/Ou
t
door w
i
r
in
g
f
ou
t
door
a
ti
o
n ci
r
c
u
it
n c
o
n
d
iti
o
n i
s bad
.
or Error
t
Samsu
n
g Ele
ct
ro
nic
s
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