Troubleshooting _ 29
Symptom
Check Code
Countermeasure
Troubleshooting Procedure
Measurement Picture
Overflow
Check
►
OC
This
may
occur
when
the
water
level
sensor
is
defective.
This
may
occur
when
water
is
supplied
continuously
due
to
freezing
or
foreign
materials
in
the
water
supply
valve.
•
Could
be
a
defective
water
valve.
Check
water
valve.
•
The
water
level
sensor
is
replace
d.
-
Heater
Check
►
HC
HC1
•
Discon
nection
w
ire
•
Heater
Fault
should
be
fault
•
W
ash-thermistor
fault
•
Check
for
connection
between
wi
re
and
heater
.
•
If
wash
heater
is
faulty
, replace
it.
-
Refer
the
TYPE
1
•
If
it
is
not
proble
m
in
heater
, replace
wash-
thermistor
-
Refer
the
TYPE
2
Temperature
Sensor
Check
►
TC1
TC2
TC3
TC4
•
W
ashing
temperature
sensor
fault
•
Dry
temperature
sensor
fault
•
Faulty
and
incorrect
connections
of
the
dry
condensing
sensor
•
Main
PCB
fault
•
Freezing
in
the
winter
season
•
IPM
temperature
is
abnormally
high.
•
Check
the
connections
for
the
washing
heater
temperature
sensor
connector
.
•
If
the
washing
heater
temperature
sensor
has
a
functional
error
, replace
it.
-
A
TC1
check
occurs.
•
Check
the
connections
for
the
dry
heater
temperature
sensor
connector
.
•
If
the
dry
heater
temperature
sensor
has
a
functional
check,
replace
it.
-
A
TC2
check
occurs.
Power
Check
►
UC
(9C1/9C2)
•
Power
condition
fault.
• An
check
occurs
when
under
or
over
voltage
is
supplied.
• plug
receptacle
is
used
• Main
PBA
fault
(sometimes)
•
Check
the
consumer
’s
power
conditions.
: Make
sure
to
check
the
operating
voltage.
•
Connect
a
tester
to
the
internal
power
terminals
during
the
Boil
or
Dry
operations
and
observe
the
washing
machine’
s
operation
carefully
.
: Check
the
voltages.
(A
check
occurs
when
under
or
over
voltage
is
supplied.)
: Check
whether
a
plug
receptacle
is
used.
When
the
connecting
wire
is
1m,
a
momentary
low
voltage
may
drop
up
to
10
V
•
Main
PBA
fault
(sometimes)
