Grant Boiler Knocking only a year in...sound files attached

[CB71]

Can anyone offer any guidance please. System installed a year ago. Oil fired grant vortex pro.

Recently started knocking - have read and I see it could be anything from kettling through to pipes.

I attach sound files links as someone may recognise the sound:

https://www.dropbox.com/s/hknbshqlx2a3dpc/Boiler 2.mp3?dl=0

https://www.dropbox.com/s/9m2kf1r9b4vo2s0/Boiler.mp3?dl=0


I plan to test the water for inhibitor - sticker says 3l added.

Many thanks in advance.

Colin

 

[oilboffin]

Take the covers off and find out if it's the system or the boiler mang the noise then take it from there.Bob

 

[oilhead]

If it is only a year, get the installer back.

 

[oilboffin]

Or give grants a phone.Bob