Service manual
Table Of Contents
If the measured fan s
p
eed, communication fault, 5 fan s
p
eed software
p
ush reset
durin
g
initialisin
g
, exceeds the
heav
y
runnin
g
fan flashin
g
malfunction communication button
maximum fan s
p
eed, the rotor, fault
(
hall sensor
)
re
g
ulation blocks. fan motor broken,
After 1 minute the boiler runs PCB failure hard-ware
into lock-out. com
p
onent broken
If the measured fan s
p
eed,
in o
p
eration, deviates from the
heav
y
runnin
g
fan rotor, or re
p
lace fan
desired fan s
p
eed, the burne
r
e
q
ual
p
roblem
will be switched off, and
p
ost-
p
ur
g
e will start. check the fan coil resistance re
p
lace fan
If this blockin
g
action PCB
p
ower su
pp
l
y
to the fan: on the two outermost
lasts for more than 1 minute, The voltage supplied by the board onto the two terminals
the boiler runs into lock-out. outermost contacts of the fan
p
lu
g
varies
(
modulation
)
.
(
R =115-120 Ohm
)
In chimne
y
swee
p
er function:
hi
g
h load = a
pp
rox 230 VAC check the
p
rinted circuit board re
p
lace PCB
low load = a
pp
rox 125 VAC for function
If the hot watwer sensor
p
rinted circuit board 6 hot water check internal tan
k
ad
j
ust in the menu the
is disru
p
ted, the boiler runs into is not reco
g
nisin
g
continuous senso
r
sensor connection correct t
yp
e of a
pp
liance,
blockin
g
mode the hot water senso
r
use
p
arameter H
If the
g
as valve circuit is disru
p
ted, broken
g
as valve coils, 7
g
as valve software check wirin
g
the boiler runs into lock-out. PCB failure, flashin
g
malfunction
p
roblem and connections
interru
p
ted wirin
g
hard-ware
com
p
onent broken
check
g
as valve coil re
p
lace
resistance on the two
g
as valve
outermost terminals
PCB
p
ower su
pp
l
y
to the
g
as valve:
(
R = about 4,1 kOhm
)
The volta
g
e su
pp
lied b
y
the board onto the two
outermost contacts to o
p
en the
g
as valve is about check the
p
rinted circuit board re
p
lace PCB
210 VDC. for function
Trouble shooting manual EN E000129004