27
0020003579A
FUSE
TYPE F3.15A
AIR PRESSURE
SWITCH CONNECTIONS
FAN
EV1
EV2
IGNITION
ELECTRODE
AIR
PRESSURE
SWITCH
SL
(N/O) (C)
SENSING
ELECTRODE
br
br
bk
p
r
gy
br
bk
bk
KEY
bk BLACK
br BROWN
b BLUE
p PURPLE
r RED
gy GREY
w WHITE
MAIN TERMINAL
STRIP CONNECTIONS
PRINTED CIRCUIT
BOARD CONNECTIONS
b
w
b
b
N
b
N
MAINS SUPPLY
230v ~ 50Hz
9.1 Electrical
Gain access to the control box, refer to the relevant paragraph
in section 8.1, then remove the control box cover, refer to
section 5.1.
Refer to: Boiler Fault Finding, see diagram 9.1, Fault Finding
Wiring Diagram, see diagram 9.3, Pictorial Wiring Diagram, see
diagram 9.4.
9.2 Electrical Supply Failure
Failure of the electrical supply will cause the burner to go out.
Operation will normally resume on the restoration of the electrical
supply.
If the burner does not relight after an electrical supply failure and
the reset/standby indicator on the control panel is lit, turn the
burner temperature control to “0”, wait 30 seconds, then fully
clockwise to “Max.” see diagram 9.2.
Diagram 9.3
11827
9 Fault Finding
Diagram 9.2
BOILER TEMPERATURE
CONTROL
10132
9.3 INDICATOR Fault Coding
Refer to fault coding table below.