Loud clunking noise from hot water cylinder

[Brutos]

Hi,

Hope i can get some advise regarding this issue. As the title says am getting this loud clunking noise from my hot water cylinder which appears to happen when the hot water is on or hot water tap is running. It only recently started last few days. The system is a Kingspan Tribune XE unvented.

Its a new build house and only moved in August, its still under warrantly. I reported it to the house builder who got the company who installed it to come out and have a look, the guy who came didnt seem that interested in the noise and said it was a valve opening and closing,

I have recorded the noise but just in the process of editing the video as its very long to upload.

I will be going back to the house builder tomorrow to ask for someone to come out again, but just wanted to know if anyone experience this before and how it was fixed please?

 

[Dexter]

Hi Brutos,
We have the same problem. If yours was solved, could you please share what it was and what needed fixing? Many thanks.

 

[glen bright]

We were told its the expansion of the actual cylinder flexing.

 

[Brutos]

Did you find out what this issue was? I have the same thing and the installers washed their hands of it but it's getting louder. Thanks.

Sorry just saw this replay Kingspan came and changed the cylinder

 

[Brutos]

We were told its the expansion of the actual cylinder flexing.

Kingspan came and change the cylinder they believe it was faulty