1 Radiator not working.......

[Les Murkitt]

Hi everyone, I posted a thread several years ago about this point & was informed that the way to resolve this problem was to turn all other rads off & the pump should push the hot water through this rad. Anyway it will not.
Any other ideas would be helpful. This rad will bleed cold water, the inlet valve gets warm but just will not pass through. I have uncoupled the inlet valve & return valve water comes out. Just cannot work out why it will not work.

 

[oz-plumber]

Do you have a thermostatic head on the control valve?
If so remove it and see if the pin is in or out.
May be worth pulling the pin up with some pliers and see if the radiator heats up

 

[Les Murkitt]

Do you have a thermostatic head on the control valve?
If so remove it and see if the pin is in or out.
May be worth pulling the pin up with some pliers and see if the radiator heats up

Hello Oz,
Thanks for your reply but no it is not a Thermostatic justa simple valve.

 

[oz-plumber]

If you can take the handle off, it may still have a pin there.
Some valves are made for thermostatic heads, but have a manual control valve installed.

If you can - post a pic of the valve

 

[Les Murkitt]

If you can take the handle off, it may still have a pin there.
Some valves are made for thermostatic heads, but have a manual control valve installed.

If you can - post a pic of the valve

 

[Les Murkitt]

Thanks again, check out the 2 pictures..

 

[steadyon]

1. When you uncoupled the valves, which nuts did you undo, the ones connecting the valves to the pipework (A) or the ones connecting the valves to the radiator(B)?
2. If A, then its possible one or other valve is blocked.
3. If B, then the radiator is blocked, provided the amount of water coming out is greater then the volume within the radiator. If only a limited amount of water came out, could still be one or other or both valve(s) blocked.

A further possibility is that both pipes to this radiator are connected to the flow or to the reverse of the "backbone" heating pipes. This might give some heat to the pipes, but no circulation.

 

[Les Murkitt]

1. When you uncoupled the valves, which nuts did you undo, the ones connecting the valves to the pipework (A) or the ones connecting the valves to the radiator(B)?
2. If A, then its possible one or other valve is blocked.
3. If B, then the radiator is blocked, provided the amount of water coming out is greater then the volume within the radiator. If only a limited amount of water came out, could still be one or other or both valve(s) blocked.

A further possibility is that both pipes to this radiator are connected to the flow or to the reverse of the "backbone" heating pipes. This might give some heat to the pipes, but no circulation.

Thank you I will try A & B later today. This radiator was working fine until I had a burst up in the roof sometime ago. I am wondering if I may have sat on a pipe & bent it causing an airlock. Does that sound a possability?

 

[Harvest Fields]

Close both valves all the way and open them
Back up again. Remember to count how many turns you have done

 

[Les Murkitt]

Close both valves all the way and open them
Back up again. Remember to count how many turns you have done

This may sound daft but this is when the system is pumping? Thanks..