noisy radiators

i-luv-free-stuff

hi everyone
i have a problem with my upstairs radiators and pipes , they make a clicking , tapping noise that starts fast then slows down to nothing every 10-15 mins or so.
i have bled the radiators but it doesnt seem to have soved it (maybe a bled them wrong!)
its causing problems because it keeps waking baby up!
im sure it didnt do this last winter.

any ideas?

cheers

Trollydolly_2

Mine are doing it too and its really annoying, sorry thats no help but any advice would be great!
Thank you

matto

Sounds like it could be a thermostatic radiator valve mounted the wrong way round.

kenshaz

Pipework not clipped down correctly,pump setting could be to high ,on the pump it has settings 1,2,3,just click down on the one it is on now.Put a lubricant and inhibitor into the header tank,that is the small tank,DO not put it into the domestic water tank by mistake. also turn your thermostat on your boiler down.But this one sounds like the pump,which is either to high or on its way out.It could be air,but it will not be in the radiator it will be in the pipes and that takes a lot of bleeding.

alanobrien

matto wrote:

Sounds like it could be a thermostatic radiator valve mounted the wrong way round.

Could also be a faulty or stuck Bi directional TRV.

matto

Many thermostatic valves (certainly older ones) are designed to work in only one direction of flow. However, it's often difficult to determine what the flow direction is. If they are the wrong way round then when they start to open or close the pump pressure starts fighting with the springs in the valves.

You can normally confirm this by playing with the valve when you hear the banging.

i-luv-free-stuff

matto wrote:

Sounds like it could be a thermostatic radiator valve mounted the wrong way round.

i dont think it will be that as it wasnt doing this last winter.
but thanks

i-luv-free-stuff

kenshaz wrote:

Pipework not clipped down correctly,pump setting could be to high ,on the pump it has settings 1,2,3,just click down on the one it is on now.Put a lubricant and inhibitor into the header tank,that is the small tank,DO not put it into the domestic water tank by mistake. also turn your thermostat on your boiler down.But this one sounds like the pump,which is either to high or on its way out.It could be air,but it will not be in the radiator it will be in the pipes and that takes a lot of bleeding.

its not the clanking of the pipes not clipped down so we can rule that out.
now i dont know about the pump , it is a combi boiler and i dont see and i dont see any settings for pump. i will lower the temp on thermostat and see what happens and i will report back.
ta

matto

i-luv-free-stuff wrote:

i dont think it will be that as it wasnt doing this last winter.
but thanks

It's easy enough to check. Just have a play with the valves when you hear the banging.

kenshaz

i-luv-free-stuff wrote:

its not the clanking of the pipes not clipped down so we can rule that out.
now i dont know about the pump , it is a combi boiler and i dont see and i dont see any settings for pump. i will lower the temp on thermostat and see what happens and i will report back.
ta

If it is a Combi boiler you have no tanks,but you still have a pump,is the pressure in the system OK,a little gauge on the boiler,has a red section that the pressure must not go into.
Find the pump and lower it ,resistance against the pressure causes vibration

kenshaz

i-luv-free-stuff wrote:

its not the clanking of the pipes not clipped down so we can rule that out.
now i dont know about the pump , it is a combi boiler and i dont see and i dont see any settings for pump. i will lower the temp on thermostat and see what happens and i will report back.
ta

The pump is an actual unit not a gauge or control,it has a little switch on the side of it,could be in the casing of the boiler ,on a combi,or might be elseware in the system,do not mean to patronise not sure of your level of knowledge.