Problem removing Rad

[d4nnyboy]

I recently fitted a couple of rads in the bedrooms, one of which is being decorated.
To make life easier I wanted to remove the rad so I can fit new skirting and paint the wall without getting paint on my brand new rad.

The problem is regardless of the lockshield and the trv being shut off, the rad still p1sses out water, its only a 600x600 double pannel so the amount of water inside should be minimal, when i normally take rads off I dont bother draining them i just shove my thumbs over the ends, but the water rushes out.
I caught the water in a fairly big tub, I repeated this about 5 times and the force the water comes out leads me to believe the valves arn't shut off.

The rad, Trv and locksheild are brand spankin new, not sure how they could be faulty.......

Is there anyway of finding out which valve is at fault?

 

[Alanc]

If your system is pressurised then close the lockshield and the TRV, crack the nut between the valve and radiator.

If your valves are new then I would assume they arent passing water.

Easier way to check for valves passing would be, close both valves, open the bleed screw, you should maybe get a cupful of water only, if it keeps flowing then one of your valves must be passing.

Al

 

[LIFES A GAS]

If it a pressurised system it could look like the valves are still open until the pressure drops a bit. But do as sugested in above post, open bleed screw. If not drain down & check valves.
Martin.

 

[TerryH]

Are you sure the TRVis completely closed?
Just turning the valve down is usually inadequate and I generally remove the valve adjuster and use the screw down cap provided with the TRV.
Hope that helps.
TH

 

[payney1974]

As what TerryH said really, are you sure the trv head is on tight? Best to use the dust cap that came with it when you bought the trv.

 

[Billy Bob Bob]

trvs will pass on presurised systems regardless of age get yourself 1x 1/2 inch bsp female cap and a washer to go on it remove rad and screw the cap onto the trv if the other side passes as well if its 1/2 inch get 2 caps if its 3/4 bsp get that size female cap

 

[d4nnyboy]

thanks for all the replies

I taken off the trv head and used the cap that came with it, i even used a spanner to try and shut it off, it still pumps out water.

Just a note, its an open vented system.

So basically I could either drain down system and take faulty valve back (got the reciept) or get the correct size bsp caps and take it off with them.

If i'm using the bsp caps, how do i get them on without the water gushing out all over the place? is it a matter of being quick?

 

[payney1974]

thanks for all the replies

I taken off the trv head and used the cap that came with it, i even used a spanner to try and shut it off, it still pumps out water.

Just a note, its an open vented system.

So basically I could either drain down system and take faulty valve back (got the reciept) or get the correct size bsp caps and take it off with them.

If i'm using the bsp caps, how do i get them on without the water gushing out all over the place? is it a matter of being quick?

Try putting a penny or a 5 pence piece in the cap then screw it down

 

[d4nnyboy]

If your system is pressurised then close the lockshield and the TRV, crack the nut between the valve and radiator.

If your valves are new then I would assume they arent passing water.

Easier way to check for valves passing would be, close both valves, open the bleed screw, you should maybe get a cupful of water only, if it keeps flowing then one of your valves must be passing.

Al

I also tried this, the cup painstaking filled up to the top.

Try putting a penny or a 5 pence piece in the cap then screw it down

would that ensure the pin is fully pushed down? in theory of course

oh i'v also shut the trv while theheating was on to see if the rad goes cold and it did!
Would that mean its the lockshield at fault?

 

[Alanc]

oh i'v also shut the trv while theheating was on to see if the rad goes cold and it did!
Would that mean its the lockshield at fault?

When you close the lockshield, the warm water will stop circulating inside that rad.

Best to get a half inch blank cap with rubber washer inside as recommended above.

Al

 

[d4nnyboy]

When you close the lockshield, the warm water will stop circulating inside that rad.

Best to get a half inch blank cap with rubber washer inside as recommended above.

Al

I shall go travis perkins and get the blank caps

Thanks all for the inpput and advice