Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Gain access to PCB (use Insulation Mat as required)
Function selector in standby position
Function selector in standby position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Function selector to DHW position.
Allow fan to start.
After approximately 5 seconds, measure voltage across the brown lead (live) and the blue lead (neutral), on connector marked X6 on the PCB.
Expected Voltage approximately 190 VAC.
Voltage will only be present for approximately 5 seconds during the sparking phase of the ignition sequence.
Allow fan to start.
After approximately 5 seconds, measure voltage across the brown lead (live) and the blue lead (neutral), on connector marked X6 on the PCB.
Expected Voltage approximately 190 VAC.
Voltage will only be present for approximately 5 seconds during the sparking phase of the ignition sequence.
Isolate as per TOPs P4
and refit as necessary