24 _ Troubleshooting
error T
ype
error
m
ode
Causes
Corrective Actions
d
escription of Photo
W
ater
Supply
Error
►
4E
This
may
occur
when
the
water
supply
valve
is
defective.
•
If
the
water
supply
valve
is
broken
, replace
the
valve.
•
Check
if
the
water
supply
is
block
ed
due
to
an
alien
substance
in
the
valve
or
check
if
the
water
is
supplied
to
the
machine.
If
a
problem
is
found,
take
the
appropriate
countermeasure.
•
Check
if
the
water
supply
is
block
ed
due
to
the
water
being
frozen.
•
If
the
P
BA
Relay
malfunctions,
replace
the
PBA.
1.
Measure
the
resistance
of
the
water
supply
valve.
-
Resistance
:
0.9KΩ
to
1.1KΩ
between
the
terminals
of
the
W
ater
Supply
V
alve.
2.
Check
whether
there
is
foreign
material
in
the
W
ater
supply
valve
filter
.
This
may
occur
when
the
main
PCB
is
defective.
This
may
occur
due
to
frozen
water
.
Drain
Error
►
5E
This
may
occur
when
the
drain
pump
is
defective.
•
Check
if
there
is
any
alien
substa
nce
inside
the
draining
pump
motor
.
•
Check
the
natural
drain
in
the
sam
e
manner
.
•
Check
if
there
are
any
incorrect
connections
or
broken
wires.
•
If
the
m
achine
m
alfunctions
interm
ittently
when
the
wash
tub
water
temperature
is
high,
replace
the
pump.
•
If
the
m
otor
stops
due
to
the
water
being
frozen
in
winter
, remove
the
frozen
water
referring
to
the
relevant
repair
procedures.
Check
the
drain
pump
resistance.
(Resistance
:
13.5
~
16.5
Ω)
This
may
occur
due
to
frozen
water
.
Check
if
there
is
any
alien
substance
inside
the
draining
pump.
This
may
occur
when
the
main
PCB
is
defective.
Communication
Error
►
AE
The
signals
between
the
sub
and
main
PBAs
are
not
sensed.
•
Check
the
wire
connections
and
terminal
contacts
between
the
sub
and
main
PBAs.
•
Check
for
disconnected
wires.
•
Check
whether
the
sub
PBA
is
short-circuited
because
of
moisture.
•
If
the
m
ain
PBA
’s
communication
circuit
is
faulty
, replace
it.
-
Incorrect
wire
connections
between
the
sub
and
main
PBAs.
