Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Turn Hot Water Tap On
Remove the control box from the gas valve and position it as shown - if not possible use an insulation mat and position it elsewhere - DO NOT hold the control box
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset appliance as necessary.
Test 1:
Allow the fan to run and ignition sequence to commence.
During the sparking stage of the ignition cycle measure the AC voltage between pins 1 and 2 on the ignition control box gas valve connector - expect mains voltage.
Test 2:
Allow the fan to run and ignition sequence to commence.
During the sparking stage of the ignition cycle measure the AC voltage between pins 2 and 3 on the ignition control box gas valve connector - expect mains voltage.
Note:
Appliance may go to lockout during this test, reset as necessary to confirm result.
Are the voltages measured as expected?
Test 1:
Allow the fan to run and ignition sequence to commence.
During the sparking stage of the ignition cycle measure the AC voltage between pins 1 and 2 on the ignition control box gas valve connector - expect mains voltage.
Test 2:
Allow the fan to run and ignition sequence to commence.
During the sparking stage of the ignition cycle measure the AC voltage between pins 2 and 3 on the ignition control box gas valve connector - expect mains voltage.
Note:
Appliance may go to lockout during this test, reset as necessary to confirm result.
Are the voltages measured as expected?
Isolate as per TOPs P4
and refit as necessary