Fan tries to run every 15 seconds then stops immediately?
Vaillant F22 fault?
Have I got got a faulty programmer?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Vaillant ecotec 831 plus?
Siemens RDJ10RF thermostat problem?
Worcester boiler dripping water?
BMU error code?
Greenstar 24Ri boiler, fast flashing - can I reset?