DIY Doctor UK DIY Forums

i had cut a central heating pipe when i was taking up some floorboards. i managed to cure the leak. but in doing so caused a airlock. i have drained off the water and thought i had got it sorted. heating was turned on hot water was pumped into two radiators ( bedroom & bathroom ) the other bedroom, lobby and lounge are cold. there is water in them all can anyone help?

Did you turn any valves off ? are all radiator valves fully open ?

You could try turning off all the radiators except one that doesn't work to see if it will push through.

Or remove the radiators that dont work, open the valves into a bucket or connect a hose and clear any ailocks that way.

There is an airlock in the pipes leading to the rads. Turn off the two working rads, so that water is forced to the non working ones. Have you bled the ch pump, (slightly undo large screw in centre).
Assume you have checked that the valves on the rads are open.