Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan purge to complete (2 minutes), turn hot water tap ON, allow fan to run and ignition sequence to commence.
During the sparking stage of the ignition cycle measure the DC voltage between pin 3 and pin 4 on connector X4.
Expect approximately 210 vdc or greater.
Is the voltage as expected?
Note:
Appliance may lockout during this test reset as necessary to confirm results.
During the sparking stage of the ignition cycle measure the DC voltage between pin 3 and pin 4 on connector X4.
Expect approximately 210 vdc or greater.
Is the voltage as expected?
Note:
Appliance may lockout during this test reset as necessary to confirm results.
Isolate as per TOPs P4
and refit as necessary