rad clicking when ch on

[danielles5982]

i happens on 2 rad 1 upstairs and 1 down.

1 down stairs is the loudest click, click, click (continuously) as the boiler is heating up and then stops and as the boiler heats ups again it starts. i have bled it but problem is still there.

upstairs rad is the same it was cold at the top but bled and now heats up it is extremely hot (as are all the rads) along with the click click click when heating comes on.

i have a 1yr old vakara combi boiler (the rads are old old old) the rads have new thermo valves on and still the old piping.

any reply would be appreciated

 

[oilman]

It's pipes sliding over wood, or the rads sliding over the brackets. You need to get some felt between the bits that touch. So up with the floorboards........

 

[danielles5982]

thanx for the info.

 

[Nige F]

Oilman`s dead right .......but try the brackets first with a drop of WD 40 on the contact between bkt.+rad..easier than boards