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Troubleshooting _ 27
Symptom
Check Code
Countermeasure
Troubleshooting Procedure
Measurement Picture
Heater
Check
►
HC
HC1
•
Discon
nection
wire
•
Heater
falut
•
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)
-