Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove the spark electrode
Measurement:
Measure the resistance across the ignition electrode.
Expect continuity / zero resistance.
Also visually inspect the electrode for good general condition.
Is the resistance measured as expected and the electrode in good condition?
Expect continuity / zero resistance.
Also visually inspect the electrode for good general condition.
Is the resistance measured as expected and the electrode in good condition?
Isolate as per TOPs P4
and refit as necessary