Vibrating pipes - central heating system

[saintgeorge]

Hello all

My central heating has recently started making a sort of humming/vibrating sound as it circulates water. Everything else seems to work fine - new pump last year, but admittedly the system hasn't been flushed or the boiler serviced for at least 3 years. I think the pipes must be vibrating. It comes and goes every minute or two.

Anyone got any ideas? What can I do about this?

 

[PatPower1]

Hi - I had a similar problem which appeared to be related to the pressure on the boiler creeping up. As soon as the pressure was reduced, the humming went with it. Just a thought?

Cheers Pat

 

[saintgeorge]

Pat - thanks for that. This might be the problem, but I am not sure how to check what is happening to the pressure in the boiler. Would this tend to increase when the boiler fires up to provide heat?

 

[PatPower1]

Hi there is usually a meter on the front of the boiler. There is also a useful faq on this site to explain what is and is not a normal pressure. Yes the pressure does rise when the boiler heat up.

I also had a humming problem on a different system that was solved by using Sentinel x100 Boiler Silencer. Marvellous stuff.

 

[Nige F]

I only deal with humming drains . sorry guys. thought there would be some gas guys about. Very likely the pump. No real problem ,I hope