faulty radiator ???

[ericrw]

My radiator in the kitchen is not working but all other radiators in the house are working. As to whether it is a faulty radiator, I`ve no way of knowing. If the feed pipes under the radiator are cold, when they should be hot, does it mean that the problem lies elsewhere within the system ?? I would appreciate any advice on tis problem.

 

[Ray Stafford]

A few questions:

Are the rad valves open?

Did it ever work?

If it did work, has anything been done to the system (even in other rooms) since it last worked?


Try turning all your other radiators off, and see if it gets hot under those circumstances

 

[basildog]

Has it got a TRV ?

 

[ericrw]

Ray, Thanks for your prompt reply. 1st question, Yes. 2nd, Yes. 3rd, No. I`ve tried your suggest of turning all other rads off but made no difference to the kitchen rad. The kitchen rad did have a thermostat fitted but it was removed in case that was faulty.

 

[ericrw]

basildog, thanks for your reply. Yes, it use to have a thermostat but it was removed in case it was faulty.

 

[basildog]

basildog, thanks for your reply. Yes, it use to have a thermostat but it was removed in case it was faulty.

When you say removed do you mean just the head has been taken off and you now have a pin sticking up ? Is the pin free ?

 

[R.Oak]

If the head has been removed but the valve body is still connected then you should check that the pin is not seized. To do this gently press it down and see if it springs up. You may want something hard to push it with. Do not pull it as you can pull it out, just press it down gently and see if it springs back up

 

[SimonG]

What size pipework have you got feeding the radiators?

 

[ericrw]

If the head has been removed but the valve body is still connected then you should check that the pin is not seized. To do this gently press it down and see if it springs up. You may want something hard to push it with. Do not pull it as you can pull it out, just press it down gently and see if it springs back up

The pin, following you instructions, appears to b working correctly.

 

[ericrw]

Simon, the central heating system was fitted by the Gas Board. so I assume the size of the pipework is correct.

 

[Plumbstar Tom]

Simon, the central heating system was fitted by the Gas Board. so I assume the size of the pipework is correct.

dont assume, check it.

Can you trace the supplying pipework back?

 

[ericrw]

The pipe size is 10 mm and cannot be traced back as it comes from out of the brick work.

 

[ericrw]

Tom, The pipework goes into the Garage and the kitchen rad pipes go into a pipe leading from the boiler, that particular pipe continues to the rad in the toilet, which is working correctly.

 

[Paulus]

My money is still on the TRV pin stuck or not opening enough to allow flow. I had one like this the other day, pressed the pin down and it went ok and sprung up ok but still no flow.

Get your pliers on the pin and try pulling it up very slightly, 1mm maybe. DO NOT FORCE IT.

 

[ericrw]

Thanks Paulus, that`s done the trick !!