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