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?
Greenstar 24Ri boiler, fast flashing - can I reset?
How do I work my Storad storage heater?
Vaillant F22 fault?
Oil fired boiler thermostat?
Vaillant ecotec 831 plus?
Remove cover off gas boiler?
Boiler cycle?
Remove boiler cover?
Siemens RDJ10RF thermostat problem?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?