A.O. Smith BFC - 28 - Manual (Page 74)

is
Release R
.1.3
UK
74
Wa
rn
in
g
Ma
intena
nce may
o
nly be pe
rformed
b
y a
qu
alifie
d se
rvi
ce and main
te
nance
e
ngin
eer
.
S12 (blo
cking
erro
r)
Short c
irc
uit
from
senso
r 1 of
temperature senso
r T
1
at the
top
of
th
e
ta
n
k
Sh
ort
circui
t in the
se
nsor circuit
Re
place
sen
sor T
1
.
To
rep
lace
the
ne
ce
ssary p
a
rt
s, yo
u mu
st
cont
act you
r in
st
al
ler
.
S13 (blo
cking
erro
r)
Short c
irc
uit
from
senso
r 2 of
temperature senso
r T
1
at the
top
of
th
e
ta
n
k
Sh
ort
circui
t in the
se
nsor circuit
Re
place
sen
sor T
1
.
To
rep
lace
the
ne
ce
ssary p
a
rt
s, yo
u mu
st
cont
act you
r in
st
al
ler
.
S14 (blo
cking
erro
r)
Short c
irc
uit
from
dummy 1
Sh
ort
circui
t in
d
ummy
ci
rc
u
it
Re
place
the du
mmy sensor
(2)
.
To
rep
lace
the du
mmy sensor you must
con
ta
ct your inst
all
er
.
S15 (blo
cking
erro
r)
Short in circuit of dummy 2.
Sh
ort
circui
t in
d
ummy
ci
rc
u
it
Re
place
the du
mmy sensor
(2)
.
To
rep
lace
the du
mmy sensor you must
con
ta
ct your inst
all
er
.
Ta
ble
10.2
Displ
ayed errors (Shee
t 2 of
1
0)
Co
de
+
De
scrip
tio
n
Po
ss
ib
le
c
aus
e
S
o
lu
tio
n
R
emar
k