Sime FORMAT DGT 30e User Manual

34
StartfromcoldsettoWINTERposition.
Room thermostat calling for heat C.H.
setpointtomaximumvalue.
Is therepower
at theexternal
socke
t
?
Make
power
availabl e
Does
thepump
star
t
?
After20seconds
from startofthe
pumpis
A
L01
present
?
Does
thefan
star
t
?
Is thereaspark
at the ignition
electrode?
Is fuse
at mains
plugOK ?
Is therepower
at L and N
terminals ?
Is thegreen
ledo
n
?
Flue fault.
Checkair pressure
switch and
connections
After20seconds
from startofthe
fan, is
A
L01
present
?
Replacefus e
on thePCB
Replacefusein
mainsplu
g
Checkwire
connections
to Land N
terminal
s
Is theT/S clockin
thecorrect
bandtime?
Checkthe
T/Stimeclock.
Do thecontact
openand clos e
when theclock
turns ?
Is there230V AC
available at the
fanterminals ?
Replacethe PCB
Check: gap
betweenthe
electrodeand
burner,conditions
of theelectrode
andignitio
n
transformer.
Does it spark
now?
Tu rn theclock
to theright
positio
n
Closeroom
thermostat
contac
t
Replace
thefa
n
Is therevoltage
availabl e
to the pump?
Replace
/clock
thethermostat
Check pump
connectio
n
Is pump shaft
free to rotate?
Replace
thepump
Make it free to
rotate
Has thePCB
ignition
locked-outafter
10 second s
without ame
at the burner?
Hasthe PCB
ignition
locked-outafter
10 seconds
withame
at the burner
before lock ?
Check: gap
betweenthe
electrode and
burner,conditions
of the electrode
and ignitio
n
transformer.
Doesitnow
detect theame?
Does theburner
pressure reduce
as thetemperature
risestowards max. ?
Check:
1) C.H.
thermistor
2) PCBcontrol
boar
d
Afterminutes3
(safetytime+
C.H. delaytime),
is theburner
pressure sett
o
themaximum ?
Is there
voltageatthe
modulator?
Does theboiler
switch obefor e
achievingthe tem-
perature?
Is thegas
availabl e?
Open the
gas cock
Replace
thePCB
Replacethe
modulator
Replacethe
PC
B
Is there
voltage availabl e
to the gas valv e?
Replacethe
gas valv e
Checkthe
connectio
n
Boiler is
satisfactor
y
Ye s
No
Is theroom
thermostat
contactclosed ?
Ye s
No
Ye s
No
Ye s
No
No
Ye s
No
Ye s
No
Ye s
Ye s
Ye s
Ye s
No
Ye s
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No Ye s
No
No
No
No
No
Ye s Ye s Ye s
No
Ye s
Ye s
No
No
No
Ye s
Ye s
No
Ye s
No
No
No
No
No
Fig.24
NOTE:
After completing fault nding reset the room thermostat to the
required setting.
6.5 CENTRAL HEATING FAULT FINDING

Sime FORMAT DGT 30e Specifications

General

Brand	Sime
Model	FORMAT DGT 30e
Category	Boiler
Language	English