Set Appliance State:

Mains Power Off
CH Demand
CH temperature control to max
Ensure appliance is cool
Gas On
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Reset appliance if required.
Does the burner ignite and establish smoothly?
Note:
1. The boiler will go to ignition lockout (3 red flashes) after 5 attempts to ignite,
reset boiler as required.
2. When the burner is established the chimney sweep led will illuminate green and blink off momentarily every 7 - 9 seconds.