Hi,
Drained down heating system yesterday to work on a couple of pipes and filled system to 1 bar (cold) and bled the rads. Turned the heating on and 2 rads upstairs and two downstairs didnt get hot. The furthest rads upstairs and downstairs are hot. On one of the upstairs rads, pipes leading to the rad is cold and on one downstairs rad the valve is hot but rad isnt.
The rads dont have TRV's on them, just open/shut control valves and lockshields. Boiler is a system boiler with pump/expansion vessel built in (cant remember the make) and stored hot water is vented.
I've read the FAQ a few times and searched on the net but havent come across a similar problem.
Hope you guys can help.
Drained down heating system yesterday to work on a couple of pipes and filled system to 1 bar (cold) and bled the rads. Turned the heating on and 2 rads upstairs and two downstairs didnt get hot. The furthest rads upstairs and downstairs are hot. On one of the upstairs rads, pipes leading to the rad is cold and on one downstairs rad the valve is hot but rad isnt.
The rads dont have TRV's on them, just open/shut control valves and lockshields. Boiler is a system boiler with pump/expansion vessel built in (cant remember the make) and stored hot water is vented.
I've read the FAQ a few times and searched on the net but havent come across a similar problem.
Hope you guys can help.