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