Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect plug from the spark generator
Measurement:
Test 1:
Measure the resistance between the red wire on the plug to the spark generator and pin 1 (red wire) on HV2.
Test 2:
Measure the resistance between the blue wire on the plug to the spark generator and pin 2 (blue wire) on HV2.
Expect continuity (zero resistance) on each test.
Measure the resistance between the red wire on the plug to the spark generator and pin 1 (red wire) on HV2.
Test 2:
Measure the resistance between the blue wire on the plug to the spark generator and pin 2 (blue wire) on HV2.
Expect continuity (zero resistance) on each test.
Isolate as per TOPs P4
and refit as necessary