I drained down my central heating system to replace a 3-way valve....and now my system seems airlocked - loads of loud clunking sounds, etc.
I am only getting heat in 1 upstairs rad and no downstairs rads. The header tank has very dirty (hot) water in it, and the expansion pipe is spluttering into it every now and again.
I turned the boiler off, and re-bled all the rads, but it makes no difference.
Any advice would be appreciated....
I am only getting heat in 1 upstairs rad and no downstairs rads. The header tank has very dirty (hot) water in it, and the expansion pipe is spluttering into it every now and again.
I turned the boiler off, and re-bled all the rads, but it makes no difference.
Any advice would be appreciated....