While you wait for answers, we may have found some information which could help you.
Success
Message
Boiler cycle?
Siemens RDJ10RF thermostat problem?
Worcester boiler dripping water?
Remove cover off gas boiler?
How to fix my fireplace?
Remove boiler cover?
Fan tries to run every 15 seconds then stops immediately?
Worcester Bosch 532/i Combi Boiler?
British Gas 532/i Gas Combi Boiler?
Vaillant F22 fault?
How do I work my Storad storage heater?
Vaillant ecotec 831 plus?