Set Appliance State:

Gas Off
Isolate Mains Power to appliance as per TOPs P4
Turn Hot Water Tap On
NOT CURRENTLY USED
NOT CURRENTLY USED
NOT CURRENTLY USED
NOT CURRENTLY USED
Remove the air intake from the fan
Disconnect the leads from the electrode assembly
Refit the ignition lead as shown to allow approx
5mm gap between the lead and the electrode
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Press reset button on appliance to ensure it is not in lockout and allow the boiler to complete its self check.
The ignition sequence should begin then 3 seconds after the fan runs sparking should be observed for approximately 5 seconds from the electrodes.
Note:
Boiler will attempt to fire 5 times before going to ignition lockout.
Do not refit the air intake after this test.
Sparking Observed
Sparking Sporadic or Absent