Noise from Boiler when turning heating off

[jonn]

I am hearing a vibrating noise coming from the boiler when its about to turn heating off. I have made a recording of the same, the noise is a bit faint at the beginning but as soon as I approach the boiler it can be heard clearly, it only lasts about 5 secs. Its not loud in the video but can be heard throughout the house when it happens.

I am worried its something to do with the boiler but cant say for sure, can it be the pump or the Zone valve?

 

[Aquarius]

Sorry Jonn, can’t hear the playback.

 

[jonn]

The noise can be heard from 4 to 7 sec, it starts before but since I was standing away from the boiler, its not captured on video clearly. It comes to an end at 7 secs.

The same video is also uploaded here, see if you can hear anything better here

View: https://youtu.be/wBdG3G3OgIk