Intermittent noise coming from boiler

[Ats0410]

HI

I was hoping someone could help, i have a Valiant boiler its about 10 years old and it keeps making an intermittent loud noise when the heating comes on but not with the hot water.

Any ideas what it could be, it sounds like a vacuum cleaner?

 

[steve32]

When was it last serviced

 

[Ats0410]

last year, the noise was still there then but not as bad, the guy couldn't find anything wrong, they cleaned the burner I think it was checked the fans.

 

[AGAS]

fook me thats narrowed it down a bit check the flux capacitor

 

[raedwald]

Is it a vacuum cleaner? If it's getting worse it's likely it's the pump.

 

[Dan Robinson]

Vacuum cleaner or kettle?

 

[ianmcd]

sounds like a combustion problem, you need an RGI