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