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?
Vaillant ecotec 831 plus?
Greenstar 24Ri boiler, fast flashing - can I reset?
One radiator in a bedroom is always cold?
Remove cover off gas boiler?
Oil fired boiler thermostat?
Siemens RDJ10RF thermostat problem?
Remove boiler cover?
Worcester boiler dripping water?
How do i stop the time from flashing on the Siemens RDJ100RF?
Boiler cycle?
How to fix my fireplace?