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I have a diverter valve on a conventional boiler? I'll look it up in the installer diagram. Definitely not a combi.

Thought diverter valves were only on combis?

It didn't make that sound when switching on/off before the fault started....

Any advice from what is on the video please?

I will be calling an engineer but would like to know what's going on if anyone can advise: C1 is a fan error code but in the video below there is an odd ticking sound that occurs for a few seconds after switching on the boiler and/or activating heating. It doesn't make that sound again (as you...

After my boiler again developed an issue with the fan after the boiler was switched off for some time, I have read on this forum, elsewhere on the internet and seen many YouTube videos where the fault is discussed. It seems to be a common fault that the PCB can blow if the boiler has...

If it is a fan fault, what was the relationship between it failing after the boiler had been switched off and out of action for 10 days?

The C1 code is showing (error with fan) after I first first hear brief whirring-ticking, like the fan motor is trying to get going, so possibly more likely the motor as the display is normal until I attempt to run the boiler? I realise this is possibly down to a faulty PCB, which could have...