While you wait for answers, we may have found some information which could help you.
Success
Message
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Boiler cycle?
Greenstar 24Ri boiler, fast flashing - can I reset?
Oil fired boiler thermostat?
Worcester boiler dripping water?
Remove boiler cover?
Vaillant ecotec 831 plus?
How to fix my fireplace?
One radiator in a bedroom is always cold?
Siemens RDJ10RF thermostat problem?
How do i stop the time from flashing on the Siemens RDJ100RF?
Remove cover off gas boiler?