Troubleshooting _ 41
Check T
ype
Check Mode
Causes
Corrective Actions
Description of Photo
Switch
Check
(Main
Relay
)
BC2
•
The
Power
button
is
continually
pressed.
•
A
button
other
than
the
Power
button
is
continually
pressed.
•
Main
PCB
relay
fault
•
Check
whether
either
the
Power
switch
or
a
tact
switch
is
continually
pressed.
•
Check
whether
the
service
PBA
holding
screws
are
fastened
too
much.
If
they
are
fastened
too
much,
loosen
them
a
little.
•
If
the
main
PBA
switching
IC
on/of
f
check
has
occurred,
replace
the
main
PBA.
Check
the
contact
between
the
control
panel
buttons
and
their
corresponding
tact
switch.
- There
must
be
a
gap
between
a
control
panel
button
and
its
corresponding
micro
switch.
♣Otherwise,
an
error
occurs
after
approx.
30
seconds
has
passed.
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)
-
Unbalance
Check
UB
•
Motor
hall
sens
or
fault
•
Cause
d
by
the
laundry
contents
•
Check
the
type
of
laundry
. Check
whether
they
may
cause
an
unbalanced
situat
ion.
-
Educate
the
consumer
in
this
cas
e
is
to
press
pause
reposition
the
load
or
remove
a
few
items.
Press
start
to
continue
and
complete
the
wash
cycle.
-
WW22K6800AW-A2.indb 41
2015/12/3 16:08:57