Noisy new installation

[ctfrancis]

Happy xmas to you all,

Recently had a new boiler installed and ever since ive been getting extra noise from the system. I get the occasional banging noise which i suspect is pipe hammer - however my rads are now noisy.
I can hear the water amongst other things circulating. If i turn down the new trvs slightly then the noise disppears, but will occur again on same rad later on. What could be the prob - faulty trvs, or still rubbish in the system - silt etc

 

[Lee-King]

It sounds like you have air in the system, try bleeding all the rads.

 

[kevplumb]

or lack of a bypass