I have an intermitten fault on my mini C28 boiler, it keeps failing to fire sometimes upto 6 times a day or it can run for a few days and decide not to fire. The pump and fan both are both running and the microswitch makes but it won't fire. I turn the boiler off and back on and it fires up! The boiler is not locking out but the green light flashes very fast - Am I looking at a new PCB?
Someone out there can help please?
Someone out there can help please?