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