24 _ Troubleshooting
Check T
ype
Check Mode
Causes
Corrective Actions
Description of Photo
W
ater Supply
Check
►
4C
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
Check
►
5C
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
Check
►
AC
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.
