Troubleshooting _ 37
Err
or
Ty
pe
Code
Causes
Corr
ectiv
e A
ctions
Description of Phot
o
Upper
w
asher
Low
er
w
asher
Dr
ain Err
or
1 5C
5C
•
Fr
ee
zing
in
the
wint
er
season
•
For
eig
n
mat
erials
in
the
dr
ain
pump
•
Poor
p
hy
sic
al
connection
•
Dr
ain
pump
fault
•
Main
PCB
faul
t
•
If
the
dr
ain
pu
mp
re
vol
utions
ar
e
restr
ained
due
to
fr
ee
zing
in
the
wint
er
season,
check
the
method
to
remo
ve
the
fr
ee
zing
and
remo
ve
as
dir
ect
ed.
•
Check
whethe
r the
re
vol
utions
of
the
dr
ain
pump
mot
or
ar
e
restr
ained
by
for
eign
mat
erial,
and
remo
ve
as
dir
ect
ed.
•
Check
the
wir
e
connect
ors
on
Main
PCB
and
Dr
ain
P
ump
A
SS
Y.
The
connect
or
or
wir
e
ma
y ha
ve
poor
ph
ysic
al
connection.
•
Check
the
dr
ain
pump
resistan
ce
.
Dr
ain
Upper
-W
asher
Check
the
dr
ain
pump
resistanc
e
- Dr
ain
: 13Ω
~
16
.5Ω
Dr
ain
Bubbl
e
Lo
w
er
-W
asher
Check
the
dr
ain
pump
resistanc
e
- Dr
ain
: 13Ω
~
16
.5Ω
- Bub
bl
e :
40Ω
~
50Ω
Communic
ation
Err
or
1 A
C
AC
•
The
signals
betw
een
the
sub
and
main
PB
As
ar
e
not
sensed.
•
Inc
orr
ect
wir
e
connections
betw
een
the
sub
and
main
PBA
s.
•
Check
the
wir
e
connections
an
d
terminal
contacts
betw
een
the
sub
and
main
PB
As
.
•
Check
for
disc
onnect
ed
wir
es
.
•
Check
whethe
r the
sub
PB
A
is
shor
t-
cir
cuit
ed
bec
ause
of
moistur
e.
•
If
the
main
PB
A’
s c
ommunic
ation
cir
cuit
is
faulty
, r
eplac
e
it.
-
