Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove connector CN302 from the PCB
Measurement:
Measure for resistance as per table below:
RESISTANCE SPARK GENERATOR
| Black probe | Red probe | Resistance |
| Pin 8 (blue) | Pin 6 (black) | Greater than 1 MOhm |
| Pin 8 (blue) | Pin 5 (brown) | Greater than 1 MOhm |
| Earth connection | Pin 6 (black) | Greater than 1 MOhm |
| Earth connection | Pin 5 (brown) | Greater than 1 MOhm |
Isolate as per TOPs P4
and refit as necessary