Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Turn Hot Water Tap On
Remove the spark generator connector from the PCB make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow the fan to run and the ignition sequence to commence.
Measure for mains voltage between pin 2 where the spark generator connector was fitted on the main PCB to connector N (blue) on the mains terminal block.
Expect mains voltage.
Note.
Mains voltage should be present for approximately 5 seconds, this will then be present again after approximately 25 seconds. This will be repeated 3 times before lockout occurs, reset as required until test is complete.
Measure for mains voltage between pin 2 where the spark generator connector was fitted on the main PCB to connector N (blue) on the mains terminal block.
Expect mains voltage.
Note.
Mains voltage should be present for approximately 5 seconds, this will then be present again after approximately 25 seconds. This will be repeated 3 times before lockout occurs, reset as required until test is complete.
Isolate as per TOPs P4
and refit as necessary