Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Boiler in CH and DHW mode, NO demands
WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure
Mains Power On

Observation:

On initial start up the display should illuminate and the fan should start to run, ramp up in speed and then stop taking approximately 15 seconds to complete this cycle.
The boiler should then enter standby, standby is indicated by either of the screens shown with no flashing symbols, If the boiler has been left for more than 30 seconds the time of day will be shown, the pump should not be running. If a fault code is displayed choose that option below.
Does the appliance behave as described above?