FAULT FINDING AND DIAGRAMS
Greenstar FS CDi
ErP
6720818079 (2016/04)
40
7.2
Boiler function
6720648568-51.1W
o
NO
YE
S
PO
WE
R
SW
ITCH
ON
DE
MAN
D
Fa
n
t
o
start
speed.
Pu
m
p
O
N
.
IG
N
IT
ION
SE
QU
E
N
CE
(see detail)
BL
UE
LI
G
H
T
ON
BURNER
LIT?
GREEN
END OF
BOILER
DEMAND
FL
A
M
E
LIGH
T
ON
Stop spark.
Wa
it
10 seconds
5t
h
attempt
?
L
O
CK
OUT
10 second
stabilisation
period.
F
a
n (& gas)
modulation
to ac
hieve
set
temperatur
e
(4
0-82
°C
)
Gas valve
OFF
P
u
mp run
3
minutes
F
a
n run
3
0
seconds
Over temperature shut
-
down if water tempera-
ture is 5°
C ab
ove se
t
value.
Gas valve
O
F
F
.
F
a
n overrun
3
0
seconds
3 minute wait
Spark
ignition
4 seconds
NO
YE
S
External switched
live demand
and temperature
control knob ON
IG
N
ITI
O
N
S
E
Q
U
E
N
C
E
