Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Unplug the lead from the spark generator and X21 of the PCB
Measurement:
Measure for continuity along the blue and brown wires between each end of the spark generator lead.
(The brown is the top connection, furthest away from the cable)
Expect continuity on each wire (zero resistance).
When refitting check that it fits securely to both the PCB and the spark generator.
(The brown is the top connection, furthest away from the cable)
Expect continuity on each wire (zero resistance).
When refitting check that it fits securely to both the PCB and the spark generator.
Isolate as per TOPs P4
and refit as necessary