Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
CH Demand
Disconnect connectors from gas valve and wedge between
the combustion chamber and the control board as shown
the combustion chamber and the control board as shown
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
On/Off Switch ON.
Allow fan to run and ignition sequence to commence.
Check for voltage across the terminals of each connector.
Expected voltage approximately 30 VDC.
Voltage will only be present during the sparking stage of the
ignition sequence - this will last approximately 5 seconds.
The sequence will be repeated 5 times, then the appliance will go to lockout.
Then the appliance will have to be Reset.
Allow fan to run and ignition sequence to commence.
Check for voltage across the terminals of each connector.
Expected voltage approximately 30 VDC.
Voltage will only be present during the sparking stage of the
ignition sequence - this will last approximately 5 seconds.
The sequence will be repeated 5 times, then the appliance will go to lockout.
Then the appliance will have to be Reset.
Isolate as per TOPs P4
and refit as necessary