Removal Of The Spark Generator; Checks; Remove All The Case Panels And The Sealed Chamber Lid (See Section 2); Fig - Biasi RIVA ADVANCE HE M110B.24SM/C Service Manual

Ignition and detection electrodes
N

Fig. 18.7

The rear insulation (Fig. 18.7) must be replaced if
damaged or wet
18.6

Removal of the spark generator

Warning: isolate the boiler from the mains

electricity supply before removing any

covering or component.

1 Remove all the case panels and the sealed
chamber lid.
2 Disconnect the spark generator connector
coming from the control p.c.b, the electrodes wire
and the earth wire coming from the ignition elec-
trodes (Fig. 18.8).
ignition electrodes
wire
O
spark generator
connector
Fig. 18.8
3 Unscrew the screws O and remove the spark
.
generator
4 Assemble the spark generator carrying out the re-
moval operation in reverse order.
When reassembling the spark generator be sure to
connect correctly the wires.
18.7

Checks

Check of the spark generator
n
Warning: isolate the boiler from the mains
electricity supply before removing any
covering or component.
40
L
M
earth wire
O
C
There is not a significant way to verify the integrity of the
spark generator.
When the fan turns but the burner does not light a poss-
ible cause is a faulty spark generator and it is advisable
to replace it to locate the fault.
Check the position of the electrode edges
n
Warning: isolate the boiler from the mains
electricity supply before removing any
covering or component.
1 Remove the ignition electrodes (see section 18.2)
2 Check for the correct distance between the me-
tallic edges of the ignition electrode (see Fig. 18.9
--- Fig. 18.10).
earth electrode
Ignition electrode
Fig. 18.9
Check the connection wires.
n
7 mm
Ignition electrode
Fig. 18.10
Warning: isolate the boiler from the mains
electricity supply before removing any
covering or component.
1 Remove all the case panels and the sealed
chamber lid.
3,5 mm