Trou
b
l
e
shootin
g
Sa
msun
g
El
ec
troni
c
s
4-
3
7
Internal PCB Communication error of the Outdoor Unit C-Box (cont.)
1. How
to
c
h
ec
k
R
e
pl
ace
W
a
t
e
r Hu
b
PCB
R
e
pl
ace
c
onn
ec
tion wir
e
Conn
ec
t pow
e
r to m
a
in PCB.
I
f
c
onn
ec
tion o
f
pow
e
r is norm
a
lly, r
e
pl
ace
th
e
M
a
in PCB.
No
No
Y
e
s
Y
e
s
Conn
ec
tion wir
e
o
f
W
a
t
e
r Hu
b
PCB / M
a
in PCB
d
i
d
c
on
f
irm
a
tion? (Ch
ec
k th
e
b
rok
e
n wir
e
)
Is pow
e
r suppli
ed
to m
a
in PCB?
Ch
ec
k th
e
7
Seg
li
g
hts.
E
2
06 C005
Ch
ec
k th
e
c
onn
ec
tor
c
onn
ec
tion o
f
M
a
in PCB
CN
3
05
a
n
d
Inv
e
rt
e
r PCB CN
3
51
c
ommuni
ca
tion wir
e
.
Ch
ec
k th
e
input t
e
rmin
a
l
c
onn
ec
tion st
a
tus.
(L
a
n
d
N o
f
Inv
e
rt
e
r PCB)
R
e
pl
ace
Inv
e
rt
e
r PCB
(Inv
e
rt
e
r PCB TX p
a
rt : P
a
rti
a
l
b
r
ea
k
age
)
Ch
ec
k th
e
wir
e
c
onn
ec
tion
st
a
tus
[CN91
c
onn
ec
tor]
No
Y
e
s
Is LED151 o
f
Inv
e
rt
e
r PCB
b
linkin
g
?
E
2
06 C00
3
غ
AM038/048/055KXWD
✳✳
Out
d
oor unit
d
ispl
a
y
In
d
oorunit
d
ispl
a
y
Du
c
t, C
a
ss
e
tt
e
(1/
2
W
a
y),Consol
e
, C
e
lin
g
C
a
ss
e
tt
e
(4/Mini4 W
a
y)
W
a
ll-mount
ed
(N
e
oFort
e
)
Op
e
r
a
tion
D
ef
rost
Tim
e
r
F
a
n
Filt
e
r/MPI Op
e
r
a
tion
D
ef
rost
Tim
e
r
Filt
e
r
18
℃
2
1
℃
Tim
e
r
2
4
℃
2
7
℃
×
×
◑
◑
×
×
◑
◑
×
×
×
◑
◑
×
※ ● :
ON
◑ :
Fl
a
sh
× :
OFF
Ju
dg
m
e
nt M
e
tho
d
∙ PCB
d
o
e
s not r
e
spon
d
to th
e
invok
ed
M
a
in PCB.
C
a
us
e
o
f
pro
b
l
e
m
∙ C-Box int
e
rn
a
l Inv
e
rt
e
r PCB, F
a
n PCB, Hu
b
PCB
defec
tiv
e
.
Summary of Contents for AM072FXVAFH series
Page 219: ...5 6 Samsung Electronics 5 2 ASS YPCBMAIN HUB AC 1 2 3 4 5 6 7 8 9 10 11 12...
Page 223: ...5 10 Samsung Electronics 4 2 3 5 8 9 7 1 6 5 3 ASSY PCB INVERTER...
Page 225: ...5 12 Samsung Electronics ASS Y PCB INVERTER cont 4 8 10 9 7 6 11 12 13 1 2 3 5...
Page 229: ...5 16 Samsung Electronics 5 5 ASS YPCBFAN Model 1 FANchassis 1 5 2 6 3 4...
Page 231: ...5 18 Samsung Electronics ASS YPCBFAN cont Model 2 FAN chassis 1 7 2 8 3 4 5 9 6...
Page 260: ...Samsung Electronics 7 15 7 19 AM038KXWD66 7 20 AM048 055KXWD66...