Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Turn Hot Water Tap On
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset appliance if required (press reset button for 2 seconds and release).
Allow boiler to commence its ignition sequence.
Measure for mains voltage between pin 6 (black) and pin 8 (blue) at CN302 on the PCB.
Approximately 5 seconds after the fan has started is mains voltage present for 7 seconds?
Note.
Appliance may enter lockout during this test, reset as required until test is complete.
Allow boiler to commence its ignition sequence.
Measure for mains voltage between pin 6 (black) and pin 8 (blue) at CN302 on the PCB.
Approximately 5 seconds after the fan has started is mains voltage present for 7 seconds?
Note.
Appliance may enter lockout during this test, reset as required until test is complete.
Isolate as per TOPs P4
and refit as necessary