While you wait for answers, we may have found some information which could help you.
Success
Message
Greenstar 25 combo boiler?
Vaillant F22 fault?
Siemens RDJ10RF thermostat problem?
Worcester Bosch 532/i Combi Boiler?
Advice?
British Gas 532/i Gas Combi Boiler?
Worcester boiler dripping water?
How do I work my Storad storage heater?
Vaillant ecotec 831 plus?
Boiler cycle?
Remove boiler cover?
Fan tries to run every 15 seconds then stops immediately?