Help please!
Just replaced 1 rad in hallway, when system turned back on 4 out of 7 rads are stone cold.
3 rads which work are first in the system, 2 upstairs and 1 downstairs.
I have tried:
1) bleeding all rads with pump off, fairly sure all air is out of rads.
2) checked pump when system turned on and can feel vibration, also there is a flow setting (1 to 3) and when adjusting the setting pump flow seems to adjust accordingly.
3) turned off 3 working rads left 4 fully open - with no joy.
4) have tried balancing hot rads, again no joy.
Feed pipes to cold rads are not even getting warm and all valves are manual adjust - boiler is Potterton and is not a combi boiler.
Running out of ideas any other suggestions?
Just replaced 1 rad in hallway, when system turned back on 4 out of 7 rads are stone cold.
3 rads which work are first in the system, 2 upstairs and 1 downstairs.
I have tried:
1) bleeding all rads with pump off, fairly sure all air is out of rads.
2) checked pump when system turned on and can feel vibration, also there is a flow setting (1 to 3) and when adjusting the setting pump flow seems to adjust accordingly.
3) turned off 3 working rads left 4 fully open - with no joy.
4) have tried balancing hot rads, again no joy.
Feed pipes to cold rads are not even getting warm and all valves are manual adjust - boiler is Potterton and is not a combi boiler.
Running out of ideas any other suggestions?