Set Appliance State:

Mains Power Off
NO demands
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Preheat switched OFF (ECO button illuminated) A.S.A.P after power reinstated.
The boiler will run a self check, allow 15 Seconds for self check to complete before proceeding.
During the self check if the boiler detects a situation which it considers to be a fault, the blue LED will flash at different rates, indicating a fault code.
If a Fault Code is shown (flashing Blue LED) choose that option below.
Choose an option from below.