Set Appliance State:

Ensure appliance is cool
No demands for DHW or CH
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

This appliance will carry out a 3 minute self-check whenever it is turned on. It cannot be skipped. Where possible this model will avoid turning the power off or carry out tests during the self-check.
If at any point during the self-check the appliance detects a fault it will display a fault code. If this happens select that option below.
At the end of the self-check the appliance will attempt to ignite, please select appropriate option below.
(If it fails to ignite after 5 attempts error code E4 will show)
Information:
The P and F numbers shown indicate software version numbers, if your numbers are different it does not affect the test.