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Troubleshooting
12-2-4 The Outdoor unit Fan error
1
.
C
h
e
c
kl
i
s
t
:
1
)
Are
th
e
in
pu
t
power vol
2)
Is
th
e mo
t
or w
i
re
c
o
3)
Is
th
ere
n
o assembly error or
4
)
Is
th
ere
n
o obs
t
a
c
le a
2.
Troubles
h
oo
tin
g pro
c
Is
th
e P
in
vol
t
#1, #
3
over
Is
th
e P
in
vol
t
age o
w
ithin
1V~5V dur
in
Is
th
e P
in
vol
t
age o
f
dur
in
g
th
e opera
ti
o
Ex
ch
a
n
ge
1
2
-5
t
age a
n
d
th
e power
c
o
nn
nn
e
ct
ed
t
o
th
e ou
t
door PCB
n
o
n
e-assembly
in th
t th
e surrou
n
d
in
g o
f
mo
t
or a
edure
No
age o
f
CN
0
1
2
5
0
V?
Yes
No
f
CN
0
1 #
3
, #5
g
th
e opera
ti
o
n
?
Yes
No
CN
0
1 #6
ch
a
n
ged
n
?
(
Square-Wave
)
Yes
th
e PCB
.
e
cti
o
n c
orre
ct
?
c
orre
ct
ly?
e
t
erm
in
al o
f
mo
t
or w
i
re
c
o
nn
n
d propeller?
Follow
th
e C
h
e
c
k Pro
c
edure o
ou
t
door u
nit
power supply error
Does
th
e P
in
vol
t
age o
f
IC
0
No
.
1
3 ch
a
n
ge?
(
Square-Wave
Yes
FAN DRIVE CIRCUIT
(
Q9
0
1,Q9
02
e
tc.)
error
Ex
ch
a
n
ge
th
e PCB
Pull ou
t th
e power
c
ord a
exe
c
u
t
e
th
e
f
o llow
in
g s
t
ep a
ft
D
i
sassemble
th
e BLDC FAN W
Is
th
e s
h
or
t
be
t
wee
th
e BLDC FAN W
i
res?
Yes
Ex
ch
a
n
ge
th
e BLDC FAN MOTOR
e
ct
or?
f
ch
e
c
k
.
No
1
(
MICOM
)
)
Ex
.
n
d
er
30
se
c
o
n
ds
.
i
re
.
No
n
Ex
.
Samsu
ch
a
n
ge
th
e PCB
.
MICOM Error
ch
a
n
ge
th
e PCB
.
n
g Ele
ct
ro
nic
s
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