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