T
ro
ubl
eshooting
S
ams
u
ng
El
ectronics
4-
35
4-3-20 E464 : O.C. (Over Current) error
1
.
Chec
kl
ist
:
1
)
I
s
the
refrigerant
charged
proper
l
y
?
2
)
Does
the
compressor
rotate
norma
ll
y
?(
Re
v
erse
rotation
, L
oc
k
ing
etc.)
3)
I
s
connection
of
compressor
wire
norma
l?
4
)
I
s
compressor
motor
norma
l?(I
ns
ul
ation
,
Coi
l
resistance
etc.)
5)
Does
a
temporary
cyc
l
e
o
v
er
l
oad
condition
happened
?
2
.
T
ro
ubl
eshooting
proced
u
re
Y
es
Y
es
No
No
No
No
No
No
Y
es
Y
es
Y
es
Does
the
compressor
wire
connected
to
the
compressor
norma
ll
y
?
Y
es
Y
es
Ex
change
the
compressor
Reinsta
ll
and
remo
v
e
the
o
b
str
u
ction
I
s
the
insta
ll
ation
of
o
u
tdoor
u
nit
good
?
Reinsta
ll
and
remo
v
e
the
o
b
str
u
ction
I
s
the
insta
ll
ation
of
indoor
u
nit
good
?
Open
v
a
lv
e
screw
to
the
end.
Are
the
ser
v
ice
v
a
lv
es
f
ull
opened
?
Correct
the
compressor
wire
connection
I
s
ins
u
ration
resistance
b
etween
each
compressor
termina
l
and
b
ody
norma
l?
Ex
change
I
N
VE
R
TE
R
PCB
No
Does
the
compressor
rotate
norma
ll
y
?
Did
AC
power
v
o
l
tage
interr
u
ption
happen
d
u
ring
the
compressor
in
operation
?
Ex
change
the
compressor
Chec
k
AC
power
so
u
rce
