T
ro
u
b
l
eshooting
S
a
m
s
u
ng
El
e
c
troni
c
s
4-7
5
4-4-
3
1 MCU b
ra
nch p
art
set
up
error
– n
o
n-
i
n
sta
ll
ed
address
set
up
t
I
ndoor
u
nit
,
w
ith
the
assigned
address
on
M
CU,
not
insta
ll
ed
.
Criteria
Cause of problem
t*GUIFSFJTBOJOEPPSVOJUUIBUJTOPUJOTUBMMFEBNPOH.$6SFHJTUFSFEJOEPPSVOJUT
Outdoor unit display
1
.
H
o
w
to
c
he
ck
F
ind
an
M
CU
that
is
c
o
m
posed
as
the
f
o
ll
o
w
ing
pi
c
t
u
re
to
c
arr
y
o
u
t
asse
mb
ly
o
f
b
ran
c
h
part
again
.
A
f
ter
c
o
m
p
l
eting
the
re
-
setting
,
press
K
3
b
u
tton
on
the
b
u
tton
to
reset
or
t
u
rn
it
o
ff
to
restart
.
Indoor unit display
MCU
BOX
#0
MCU
PCB
OFF
MCU
address
setup
ON
Indoor
unit
Indoor
unit
address
Branch
part
use
setup
4
4
2
1
5
6
0
Branch
A
4
B
C
D
E
1
F
6
×(O
peration
)
◑
(T
i
m
er
)
◑
(F
an
)
◑
(F
i
l
ter
)
×(
De
f
rost
)
