Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect ignition lead to the electrode
Measurement:
Inspect the ignition electrode for condition and correct gap.
Gap should be 3.6 mm +/- 1.1 mm.
Carry out a resistance check from the tip of the electrode
to the spade connector where the ignition lead connects to.
Gap should be 3.6 mm +/- 1.1 mm.
Carry out a resistance check from the tip of the electrode
to the spade connector where the ignition lead connects to.
Isolate as per TOPs P4
and refit as necessary