We may have found other answers which could help you.
Success
Message
Vaillant F22 fault?
Worcester boiler dripping water?
Boiler cycle?
How do I work my Storad storage heater?
Vaillant ecotec 831 plus?
Greenstar 24Ri boiler, fast flashing - can I reset?
Siemens RDJ10RF thermostat problem?
How to fix my fireplace?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Remove boiler cover?
Oil fired boiler thermostat?
Remove cover off gas boiler?