While you wait for answers, we may have found some information which could help you.
Success
Message
Greenstar 24Ri boiler, fast flashing - can I reset?
Remove boiler cover?
How do i stop the time from flashing on the Siemens RDJ100RF?
Oil fired boiler thermostat?
Vaillant ecotec 831 plus?
Remove cover off gas boiler?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Worcester boiler dripping water?
Siemens RDJ10RF thermostat problem?
Vaillant F22 fault?
Boiler cycle?
How to fix my fireplace?