A.O. Smith 28 30 50 60 Benutzerhandbuch
is
Release R
.1.3
UK
72
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
.
10
.3
T
rou
blesh
oot
ing
t
a
ble fo
r dis
p
laye
d err
o
rs
Ex
pl
os
iv
e ig
ni
tio
n
Inco
rre
ct supp
ly
pressure a
nd/or bu
rner
pressure.
Set th
e
co
rre
ct supp
ly
p
ressure and
/o
r bu
rner pressure, see
.
If
igni
tio
n is
n
ot
im
p
ro
ved, co
nsult your inst
all
er
.
Cont
amina
te
d burne
r
C
lean the burn
er
. See
’
Cont
amina
te
d orifice.
Cl
ean the orifice. See
Insufficient or no hot
wa
ter
.
Ap
pli
ance is turned
of
f.
S
ta
rt-up
the
ap
pli
ance.
Se
e
No electric powe
r
present.
1.
C
heck whether the mains switch is ON.
2.
C
heck tha
t there is pow
er
to the mains switch.
3.
C
heck whe
the
r th
e ON
/OFF
switch of th
e Th
ermoCon
trol
is ON
(p
osition I).
4.
C
heck whether there is pow
er
to the ele
ctrical
co
nnectio
n
block.
5.
T
he vol
tag
e me
asured
must
b
e 230
V
A
C (-15%, +10
%
).
Se
e appe
ndi
x
.
If the
e
rro
r can
not b
e
recti
fied, co
nt
a
ct
your
inst
all
er
.
Hot
wa
te
r sup
ply is
used up.
Re
duce hot water
co
nsumption
a
nd gi
ve the app
lian
ce
time to
h
eat
up
.
If
the
re
co
ntinue
s
to be in
su
ffi
ci
ent or
n
o hot
w
ater
, consul
t your
in
st
a
lle
r.
The
con
tro
ller is in
OF
F mode.
Put the co
ntro
ller i
n ON mode, see
.
Te
mp
erature (T
set
) is
se
t too low
.
Set temperat
ure (T
set
)
to
a
high
er va
lue, se
e
.
Ta
ble
10.1
Ge
neral
e
rro
rs (Shee
t 3 of 3)
Symptom
C
ause
So
lu
tio
n
R
emar
k