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