T
ro
u
b
l
eshooting
4-66
S
ams
u
ng
El
ectronics
4-4-
22
C
o
mmun
i
c
atio
n E
rror
b
et
w
ee
n In
door
a
n
d
O
u
tdoor
Un
its
d
u
ri
ng T
ra
ck
i
ng
×(O
peration)
ስ
(
Reser
v
ation)
ስ
(Bl
ast)
×(F
i
l
ter)
×(
Defrost)
∙
Refer
to
the
ju
dgment
method
be
l
ow.
∙ C
omm
u
nication
error
between
indoor
and
o
u
tdoor
u
nits.
I
ndoor
u
nit
disp
l
a
y
Ju
dgment
Method
C
a
u
se
of
prob
l
em
Ou
tdoor
u
nit
disp
l
a
y
1
.
C
a
u
se
of
prob
l
em
Y
es
Y
es
I
ndoor
U
nit
I
nsta
ll
ation
Qu
antit
y S
et
u
p
S
witch
of
Ou
tdoor
U
nit
C
ompare
and
check
the
set
v
a
lu
e
and
the
act
u
a
l
n
u
mber
of
indoor
u
nits
insta
ll
ed.
Press
the
reset
ke
y (K
3)
of
the
o
u
tdoor
P
CB,
and
check
the
disp
l
a
y
mod
ul
e
to
check
for
the
qu
antit
y
of
indoor
u
nits
that
respond
to
the
tracking.
Remo
v
e
the
comm
u
nication
cab
l
e
which
connects
the
o
u
tdoor
u
nit
to
the
indoor
u
nit
,
and
meas
u
re
the
2
cab
l
es
of
the
o
u
tdoor
u
nit
with
a
scope.
I
s
there
no
sign
of
the
indoor
response
on
the
disp
l
a
y
d
u
ring
tracking
?
C
heck
the
comm
u
nication
cab
l
e
which
connects
the
o
u
tdoor
u
nit
to
the
indoor
u
nit.
I
f
there
is
no
pec
ul
iarit
y,
then
connect
the
indoor
u
nits
one
b
y
one
to
find
the
indoor
u
nit
that
is
interfering
with
the
comm
u
nication
for
inspection
and
change
the
indoor
u
nit
P
CB
.
I
s
the
v
o
l
tage
between
the
2
cab
l
es
a
s
qu
are
wa
v
e
with
D
C±0
.
7V
or
more
?
A
re
the
n
u
mber
of
act
u
a
l
insta
ll
ed
indoor
u
nits
and
the
set
v
a
lu
e
for
the
insta
ll
ation
qu
antit
y
set
u
p
switch
the
same
?
C
orrect
ly
set
the
indoor
u
nit
insta
ll
ation
qu
antit
y
set
u
p
switch
of
the
o
u
tdoor
u
nit
,
and
press
the
reset
ke
y (K
3)
of
the
o
u
tdoor
P
CB
to
re
-
e
x
ec
u
te
tracking.
A
fter
2
min
u
tes
,
find
the
indoor
u
nit
which
disp
l
a
y
s
the
comm
u
nication
error
for
the
indoor
u
nits
,
and
check
for
o
v
er
l
aps
in
the
P
CB
address
set
u
p.
(I
f
the
indoor
u
nit
addresses
are
o
v
er
l
apped
,
then
a
comm
u
nication
error
wi
ll
occ
u
r).
- I
n
this
case
,
a
comm
u
nication
error
wi
ll
occ
u
r
in
e
v
er
y
indoor
u
nit
(
two
or
more
u
nits)
with
the
address
incorrect
ly
set.
C
hange
the
indoor
u
nit
P
CB
after
checking
the
comm
u
nication
cab
l
e
when
there
is
no
pec
ul
iarit
y
with
the
address.
C
heck
the
comm
u
nication
cab
l
e
and
the
connector
of
the
o
u
tdoor
u
nit
P
CB,
and
change
the
P
CB
.
Y
es
No
No
No
