Service manual

If the flue
g
as sensor exceeds a extreme hi
g
h flue
g
as A flue
g
as Find the cause of this flue
g
as limiter lock-out,
tem
p
erature of 105°C, the boiler tem
p
erature flashin
g
limiter because
p
reviousl
y
:
runs into lock-out lock-out a
)
. The burner was off at 100°C
(
105°C
)
b
)
. The burner was on low load at 90°C
interrupt the supply
p
ower
The
p
owerin
g
u
p
of the su
pp
l
y
volta
g
e makes the flue
g
as sensor active.
If the flue
g
as sensor exceeds a extreme hi
g
h flue
g
as A burne
r
Find the cause of this flue
g
as limiter lock-out,
tem
p
erature of 100°C, the burner tem
p
erature continuous blocked, because
p
reviousl
y
the burner was
is blocked. caused b
y
on low load at 90°C
hi
g
h flue
g
as
temperature burner action restores
(
100°C
)
when the tem
p
erature
descends 70°C
If the flue
g
as sensor exceeds a hi
g
h flue
g
as A/C. burne
r
blockin
g
action burner action restores
tem
p
erature of 90°C, the burner tem
p
erature or limited to restores when the tem
p
erature
is blocked. A/d. low load, automaticall
y
descends 70°C
The dis
p
la
y
shows alternatel
y
or caused b
y
a code A and the actual A/b. hi
g
h flue
g
as check flue
g
as use view o
p
tion in
boiler status continuous tem
p
erature sensor function menu mode
(
90°C
)
test sensor re
p
lace sensor
(
R=12 kOhm@25°C
)
Reset the a
pp
liance.
Press the “+” button for 5-10 seconds, the status 8 comes up (water pressure) check function of
Start demand for heat with the chimne
y
swee
p
er function. Read the
p
ressures. burne
r
a
)
. if the delta P is under 0,05 bar, the boiler has no water.
b
)
. if the delta P is above 0,54 bar
(
0,64 for t
yp
e 40 and TWIN
)
, the water does not flow. check flow o
f
c
)
. If the delta is between 0,05 and 0,54
(
0,64 for t
yp
e 40 and TWIN
)
, water throu
g
h
the water flow is all ri
g
ht, the
p
um
p
test ends. heat exchan
g
e
r
Trouble shooting manual EN E000129004