T
ro
u
b
l
eshooting
S
ams
u
ng
El
ectronics
4-
55
4-4-1
0
B
rea
k
do
wn
o
f EEV (
2
n
d
)
1
.
H
ow
to
diagnose
Detect
on
ly
on
coo
l
ing
operation.
(
No
detection
d
u
ring
heating
operation.)
D
u
ring
coo
l
ing
operation
,
the
temperat
u
re
of
the
in
l
et
or
o
u
t
l
et
d
u
cts
of
heat
e
x
changer
is
kept
be
l
ow
0˚C
for
more
than
2
0
min
u
tes
witho
u
t
cessation
2.
H
ow
to
check
1
)
C
heck
if
the
wire
of
e
l
ectronic
e
x
pansion
v
a
lv
e
is
correct
ly
connected
to
the
P
CB
of
indoor
u
nit.
2)
C
heck
if
the
coi
l
of
an
e
l
ectronic
e
x
pansion
v
a
lv
e
is
correct
ly
p
lu
gged
into
the
main
bod
y
.
3)
C
heck
if
there
is
an
y
r
u
st
on
the
s
u
rface
of
the
e
l
ectronic
e
x
pansion
v
a
lv
e
with
naked
e
y
es
then
check
the
resistance
between
each
termina
l
to
find
an
y
wire
breaking
or
short
circ
u
it.
4
)
Press
the
R
ESET KEY (K
3)
of
the
o
u
tdoor
u
nit
then
see
if
the
same
error
occ
u
rs.
4
)
- I
n
case
of
c
l
os
u
re
prob
l
em
,
operate
the
indoor
u
nit
in
which
the
error
has
occ
u
rred.
4
)
- I
n
case
of
opening
prob
l
em
,
p
l
ease
do
not
operate
the
indoor
u
nit
in
which
the
error
has
occ
u
rred.
5)
I
f
there
is
no
prob
l
em
with
the
abo
v
e
check
u
p
items
,
rep
l
ace
the
e
l
ectronic
e
x
pansion
v
a
lv
e
of
the
tro
u
b
l
ed
indoor
u
nit.
4
)
- A
s
an
e
l
ectronic
e
x
pansion
v
a
lv
e
rep
l
acement
is
trick
y
work
that
re
qu
ires
co
ll
ecting
refrigerants
in
a
ll
s
y
stems
,
p
l
ease
check
the
abo
v
e
items
before
rep
l
acement.
