Set Appliance State:

Mains Power Off
NO Demands
Ensure Warm Start Turned OFF
Ensure Central Heating Turned OFF
WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure
Mains Power On

Observation:

Reset the appliance.
Allow the appliance to complete its 2 minute self check program.
At the end of the self check program the boiler should be at rest without the fan or pump running.
Note:
It is important to wait the full two minutes for the self check program to complete properly even if the boiler appears to have finished within 2 minutes.