38 _ Troubleshooting
Err
or
Ty
pe
Code
Causes
Corr
ectiv
e A
ctions
Description of Phot
o
Upper
w
asher
Low
er
w
asher
Door
Err
or
1 DC
1DC1
DC
DC1
•
Door
swit
ch
fault
•
Main
PCB
fau
lt
•
If
a
DC
/DC1
err
or
oc
curs
, check
whether
it
oc
curs
du
ring
the
B
oil
cyc
le
.
-
If
it
is
det
ect
ed
that
the
d
oor
is
op
en,
cl
ose
the
d
oor
.
•
The
12
0V
is
d
irectl
y c
onnect
ed
to
the
door
.
Check
and
repair
the
p
ow
er
wir
e
connections
and
insulation
stat
e.
•
Check
the
d
oor
swit
ch.
R
ep
lac
e
if
faulty
.
•
Check
the
main
PB
A
door
sensing
cir
cuit.
R
ep
lac
e
if
faulty
.
▶
TYPE
1
Check
the
door
swit
ch
Resistanc
e.
The
resistanc
e
of
1
and
3
Pin
Must
be
appr
oximat
el
y 175Ω
.
Door
Err
or
1 DC
1DC1
-
•
Door
-L
ock
S
W
fault
•
Reed
S
W
faul
t
•
Main
PCB
fau
lt
•
Check
the
D
oor
-L
ock
S
W
terminal
connections
and
contacts
.
•
Bring
the
p
robe
of
test
er
int
o
contact
with
tw
o
terminals
of
D
oor
-L
ock
S
W
.
•
[DC
E
rr
or]
In
stat
e
of
D
oor
Cl
ose
,
Check
R
eed
S
W
R
esistanc
e.
•
[DC1
E
rr
or]
In
stat
e
of
D
oor
Lock/Unl
ock,
Check
Mot
or
Resistanc
e.
A
nd
In
stat
e
of
D
oor
Lock/Unl
ock,
Check
D
oor
Lock/Unl
ock
C
ontact
R
esistanc
e.
•
If
Resistanc
e
is
satisfied
with
Sp
ec,
Rep
lac
e
the
PB
A.
1.
Check
the
res
istanc
e
for
R
eed
SW
(Checking
P
ar
t :
Whit
e-
Gr
een
Wir
e)
- R
esistanc
e:
A
ppr
ox
0
.2Ω
betw
een
the
terminals
of
R
eed
SW.
2.
Check
the
res
istanc
e
for
Mot
or
(Checking
P
ar
t :
Black
-Br
own
Wir
e)
- R
esistanc
e:
34Ω
to
51Ω
betw
een
the
terminals
of
Mot
or
.
3.
. Check
the
resistanc
e
for
Lock/
Unl
ock
C
ontact
(Checking
P
ar
t :
Lock
Whit
e
- R
ed
Wir
e
Unl
ock
Whit
e
- Bl
ue
Wir
e)
- R
esistanc
e:
A
ppr
ox
0
.2Ω
betw
een
the
terminals
of
Contact.
*Check
the
D
oor
Lock/Unl
ock
stat
e.
