My boiler is constantly clicking

[radfordadam]

I have a boiler than makes clicking noises for hours on end. It does this at random times, e.g. 1am. The boiler isn't on when it does this. I have attached a video of the sound. if anyone knows what is causing this, please please please let me know

Thanks

Adam

 

[SimonG]

Could be getting 240volt from a control valve. Need to get the testers out

 

[Aquarius]

Can’t view the video.

 

[PETE 123]

Morse code. Please help me.

 

[radfordadam]

Thanks Simon, sounds like i'll have to get the bank card out.

Cheers Pete, very helpful