Trickling sound when heating is on

[gav7877]

I have noticed recently that when the central heating comes on you get a trickling sound in the airing cupboard. Initially I thought this could be air in the system so I bled all the radiators. I also drained the system then refilled it but it's still doing it. Does anyone have any ideas? Many thanks

 

[Agile]

Pumping over?

Have you inspected the F&E tank?

If thats the case then it needs urgent attention before the system is sludged up within days!

Tony

 

[gas4you]

If as Tony suggests try fitting a Myson aerjec in the pipe work in airing cupboard. They come with good set of installation instructions

 

[Nige F]

when you drained.........how was the water