Lock shield Valve

[Dave1312]

Hi

Have a radiator not heating up. All others work fine and I’ve freed the pin in the TRV but this is the lockshield valve. Do I need a key to try and open it as it looks like it doesn’t have a spindle on. Tried gripping with an adjustable but won’t budge.

Thanks in advance

 

[cross thread]

Standard valve ,anti clockwise to open.

 

[Dave1312]

Just use an adjustable? Can’t get it to budge. Tried turning it both ways doesn’t seem to move. Might work with a key

 

[terryplumb]

No key needed ,just a spanner on the square end of the spindle.
If it won't turn with a decent length spanner ( 8-10 inch long) it must be seized and needs replacing.

 

[Madrab]

Can’t get it to budge.

Careful, it's been open/closed to it's stop and as suggested may be seized, if you go too hard you could snap it. Has the rad ever worked?

 

[Dave1312]

Always had issues with it but it’s in a room that’s kind of just used as pass through up to the loft so I’ve never really needed it but figured it’s there it should be working. I’ll try a little bit of wd40 in it. I think it’s every likelihood it’s seized