Just a quick one, I have a WB condensing boiler about 3 years old which I have just had moved following some building work. It was working fine 2 weeks ago, but now won't fire up and comes up with code C1 - which points to the fan. I can see we will end up replacing the fan, but just wondered whether anyone had any other ideas? Any pointers on how to go about diagnosing the problem? How do I know it's the fan and not the PCB?
Many thanks for any help - much appreciated.
Many thanks for any help - much appreciated.
