T
ro
u
b
l
eshooting
S
ams
u
ng
El
ectronics
4-
5
7
4-4-1
2
:
D
ete
c
tio
n
o
f Fl
oati
ng Sw
it
ch
o
f In
door
Un
it
'
s
D
rai
n Pump
1
.
H
ow
to
check
✳
T
o
re
l
ease
E1
53
error
, y
o
u
m
u
st
reset
the
power
of
the
indoor
u
nit.
No
No
No
No
No
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
W
hen
checking
the
resistance
v
a
lu
e
of
both
termina
l
s
after
disconnecting
a
f
l
oating
sensor
connector
l
inked
to
an
indoor
u
nit
P
CB,
is
resistance
v
a
lv
e
= ∞ ?
I
s
there
a
l
ot
of
water
in
the
drain
p
l
ate
?
Does
Drain
p
u
mp
r
u
n
d
u
ring
CO
MP
operation
?
Diagnosed
as
a
defecti
v
e
Fl
oating
sensor
No
Drain
p
u
mp
P
CB u
nit
v
o
l
tage
=
aro
u
nd
AC
22
0V?
Does
the
water
l
e
v
e
l
in
the
Drain
Pan
get
l
ower
?
Reset
the
power
of
the
indoor
u
nit
then
check
if
drain
p
u
mp
operates
(v
ibrates
d
u
ring
operation)
Norma
l
operation
I
ndoor
u
nit
'
s
power
reset
after
rep
l
acement
Reassemb
ly Fl
oating
S
ensor
C
onnector
and
reset
Ou
tdoor
U
nit
power
(I
ndoor
u
nit
power
reset
re
qu
ired)
Norma
l
operation
Diagnosed
as
a
defecti
v
e
Fl
oating
sensor
I
ndoor
u
nit
'
s
power
reset
after
rep
l
acement
Rep
l
ace
Drain
p
u
mp
Rep
l
ace
Drain
p
u
mp
Rep
l
ace
I
ndoor
U
nit
P
CB
E
rror
occ
u
rs
×(O
peration)
×(T
imer)
◑
(F
an)
◑
(F
i
l
ter)
×(
Defrost)
t
D
u
e
to
the
breakdown
of
a
drain
p
u
mp
of
the
indoor
u
nit
,
an
increase
in
the
water
l
e
v
e
l
in
the
drainage
p
l
ate
or
defecti
v
e
detection
sensor
t
Refer
to
how
to
determine
be
l
ow
Indoor unit display
Criteria
Cause of problem
Outdoor unit display
x x x(x x x : T
he
address
of
the
error
occ
u
rred
indoor
u
nit)
●
Fl
oat
sensor
error
wi
ll
be
remo
v
ed
on
ly
when
the
remote
contro
ll
er
for
an
indoor
u
nit
operates
