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Troubleshooting
12-2-13 Communication error
1
.
C
h
e
c
kl
i
s
t
:
1
)
Is
th
e
c
ommu
nic
a
ti
o
2)
Is
n
'
t th
e power
c
able a
2.
Troubles
h
oo
tin
g pro
c
Res
t
Is
th
e
c
o
Is
n
'
a
n
d
c
ommu
Is
th
c
ommu
nic
Is
2
M
ic
om
(
Ex
ch
a
n
ge
1
2
-15
n c
able be
t
wee
n th
e
in
door u
n
d
c
ommu
nic
a
ti
o
n c
able error?
edure
ar
t
a
ft
er power o
ff.
ommu
nic
a
ti
o
n
error
cc
urred aga
in
?
Yes
t th
e power
c
able
nic
a
ti
o
n c
able error?
Yes
e
c
o
nn
e
cti
o
n
o
f
a
ti
o
n c
able
n
ormal?
Yes
it th
e ou
t
door
I
n
ver
t
er + Ma
in)
model?
Yes
th
e ou
t
door u
nit
PCB
.
nit
a
n
d ou
t
door u
nit c
o
nn
e
ct
No
No
No
No
Ex
ch
ed
c
orre
ct
ly?
Term
in
a
t
e
th
e serv
ic
e
.
Corre
ct th
e wro
n
g w
i
r
in
g
.
Corre
ct th
e
c
o
nn
e
cti
o
n
o
f
c
ommu
nic
a
ti
o
n c
able
.
a
n
ge
th
e
in
door/ou
t
door u
nit
PCB
Samsu
.
n
g Ele
ct
ro
nic
s
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