Took Rads off to decorate...not won't warm up?

[nordberg73]

As subject... I took 2 rads in the same room off to decorate. I've just hung them back up, repressurised the system (combi) and vented the rads. They're not getting hot. The flow pipe on both rads is getting luke warm but the rads themselves are cold. They warmed up very slightly, and patchy, initially but that's it.

I've tried switching all the other rads off but they are still cold. Both fitted with TRVs which are fully open. I've played with different tightness of the the other side, but no joy...

Any suggestions?

 

[Burnerman]

No intention of patronising you, but are both rad valves fully open?
Just sometimes, the plastic valve head spins, but its not turning the valve below. Use pliers!
John

 

[nordberg73]

No intention of patronising you, but are both rad valves fully open?
Just sometimes, the plastic valve head spins, but its not turning the valve below. Use pliers!
John

No worries

Well both the TRVs are open for sure..... Not sure what to do with the other side...I've loosened them a bit but they seem to just loosen until the screw comes completely out.

 

[Morris40]

take the TRV heads off and you'll see a pin see if it can be pushed down and if it pops back up again, use a hard object to push down, they are known to stick

 

[nordberg73]

Thanks guys.

Turs out the lockshield valve was closed... I was turning the screw that holds the cover on the lockshield thinking I was actually turning the valve itself.....

Everyday's a schoolday

 

[Morris40]

well as long as you learn from your mistakes they are good to make, unless your a gas man then your fu*!@d