9 fault finding – Glow-worm Ultimate 30FF User Manual
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221518L
9 Fault Finding
FUSE
TYPE F1 & F2
(F1A)
AIR PRESSURE SWITCH CONNECTIONS
SPARK
ELECTRODE
O/H CUTOFF
CONTROL STAT
FAN
AIR
PRESSURE
SWITCH
PILOT
SOLENOID
MAIN
SOLENOID
N
N
N
N
N
N
N
(N/O)
(C)
(N/C)
L
K2
K1
2
3
N
N
b
w
w
br
y
y
y
r
b
r
bk
b
y
br
b
b
bk
b
KEY
bk BLACK
br BROWN
b BLUE
p
PURLPLE
or ORANGE
w WHITE
r RED
y YELLOW
SL
MAIN TERMINAL STRIP CONNECTIONS
CONTROL THERMOSTAT CONNECTIONS
PRINTED CIRCUIT BOARD CONNECTIONS
FULLY PUMPED OPEN VENTED
OR SEALED WATER SYSTEM
PN
9
P
L
PUMP
br
b
br
br
b
b
*
RED
LINK
*
Remove red link between 9 and SL when
fitting a time control etc (if no switch is fitted,
link will make the circulation pump run constantly)
F1
F2
or
or
or
p
Diagram 9.4
Diagram 9.5
FUSE
TYPE F1 &F2
(F1A)
SPARK
ELECTRODE
O/H CUTOFF
CONTROL STAT
FAN
AIR
PRESSURE
SWITCH
PILOT
SOLENOID
MAIN
SOLENOID
N
N
N
N
N
N
N
(N/O)
(C)
(N/C)
L
K2
K1
2
3
N
N
bl
w
w
br
y
y
y
r
bl
r
bk
bl
y
br
bl
bl
bk
bl
KEY
bk BLACK
br BROWN
bl BLUE
p
PURPLE
or ORANGE
w WHITE
r
RED
y YELLOW
SL
PUMP WIRED INTO CENTRAL HEATING
SYSTEM REMOTE CONTROLS
GRAVITY DOMESTIC HOT WATER AND
FULLY PUMPED CENTRAL HEATING
*
YELLOW
LINK
AIR PRESSURE SWITCH CONNECTIONS
MAIN TERMINAL STRIP CONNECTIONS
CONTROL THERMOSTAT CONNECTIONS
PRINTED CIRCUIT BOARD CONNECTIONS
9
P
F1
F2
or
or
p
**
RED LINK
*
Yellow Link fitted to bridge out
the overheat cutoff
**
Red Link must be fitted between
SL and 9.
bl
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5741