Set Appliance State:

Mains Power Off
Selector switch in HW position.
Gas On
WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure
Mains Power On

Observation:

Depress Gas Control Valve Knob, after approximately 30 seconds sparking occurs and Pilot ignites. Continue to depress Gas Control Valve Knob for a further 30 seconds, then release. Pilot should remain alight.