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